[Touch-packages] [Bug 1801496] Re: Printing job in 16.04 is slower than in 14.04
Dear Till, Thank you very much for taking your time to help investigate this issue and providing us a method to continue the investigation even when you are so busy. We had tried to figure out the difference of convert into PostScript and no conversion to PostScript by the method you provide on the date 2019-01-18(#15). But negatively, we don’t know the correct way to make it work. We use the PPD attached (Ricoh-MP_C5503_PXL.ppd) to print a job. The output capture file(test_modify_Fail.prn) shows that the capture command did not convert normally. The output capture file(test_modify_Fail.prn) on which you can figure out that capture command file output by the PPD (Add "*FoomaticRIPCommandLinePDF:") missing a lot of commands than the capture command file(test_original_OK.prn) output by the original PPD (without modify). We suspected the definition of FoomaticRIP Command is duplicate by below two define(“*FoomaticRIPCommandLine:” and “*FoomaticRIPCommandLinePDF:”): --- *FoomaticRIPCommandLine: "(printf \033%%-12345X@PJL\n@PJL JOB\n@PJL SET COPIES=\n%G|perl -p -e s/\x26copies\x3b/1/); (gs -q -dBATCH -dPARANOIDSAFER -dNOPAUSE -dNOINTERPOLATE %B%A%C %D%E | perl -p -e s/^\x1b\x25-12345X// | perl -p -e s/\xc1\x01\x00\xf8\x31\x44/\x44/g); (printf @PJL\n@PJL EOJ\n\033%%-12345X)" *End *FoomaticRIPCommandLinePDF: "(printf \033%%-12345X@PJL\n@PJL JOB\n@PJL SET COPIES=\n%G|perl -p -e s/\x26copies\x3b/1/); (gs -q -dBATCH -dPARANOIDSAFER -dNOPAUSE -dNOINTERPOLATE %B%A%C %D%E | perl -p -e s/^\x1b\x25-12345X// | perl -p -e s/\xc1\x01\x00\xf8\x31\x44/\x44/g); (printf @PJL\n@PJL EOJ\n\033%%-12345X)" *End --- So, we delete the command “*FoomaticRIPCommandLine:” from PPD, Hopping the way can make it works correctly. But the output capture file shows that this method is the same result with two FoomaticRIP Command definition. Can you lead us the correct way to the investigation of no conversion to PostScript. And if you have further investigation result, it’s appreciated to share with us. Attach file introduction: -- Original PPD Capture file: test_original_OK.prn Modify PPD Capture file: test_modify_Fail.prn CUPS Log file: error_log_Bill_job1043_1072 -- Best Regards, ** Attachment added: "LogAndCapture.zip" https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+attachment/5232011/+files/LogAndCapture.zip -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1801496 Title: Printing job in 16.04 is slower than in 14.04 Status in cups package in Ubuntu: Incomplete Bug description: Ubuntu 16.04LTS OS Version： 16.04.5 CUPS Version： 2.1.3 Ghostscript Version： 9.25 （2018-09-13） Printing job in 16.04 is slower than in 14.04 We(RICOH printer driver developer) are report a problem from our printer users: I print file Ubuntu 14.04.5, CUPS 2.1.3,Ghostscript 9.25 is fast(12 Seconds). But, after I update to Ubuntu 16.04, CUPS 2.1.3, Ghostscript 9.25, I print the same file with the same driver is slow(326 Seconds). I figure out that all the print jobs is much slower on Ubuntu 16.04. I view the "CUPS Error Log", it shows that there are three points which maybe the reasons that makes the print job slowly. FIRST: By counting the time from "Starting renderer" to "renderer exited with status 0", we figure out that 16.04 spend more time than 14.04 on "renderer" process. So we assuming that："renderer" is one of the key process that makes the print job slowly. "Starting renderer with command: \"printf \'\\033%%-12345X@PJL JOB\\012\';printf \'@PJL SET DATAMODE=TWIN\\ @PJL EOJ\\012\\033%%-12345X\'\"" . renderer exited with status 0" SECOND: On 16.04, a print job outputs lots of logs as below: "[Job xxx] Removing document files." This step(“Removing document files”)does not exsit on 14.04. The phenomenon that print jobs slower in 16.04 is more obvious when printing many jobs in the same time. THIRD We tried drivers form other company(HP,Brother…), the printings also slow down in Ubuntu 16.04 than 14.04. Our question is: 1. Do you have any plan to improve the performance of printing on Ubuntu 16.04? 2. Do you have any workaround before this problems fixed? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+subscriptions -- Mailing
[Touch-packages] [Bug 1801496] Re: Printing job in 16.04 is slower than in 14.04
A problem I have observed in the logs is that foomatic-rip calls Ghostscript twice here. Once to convert the PDF input into PostrScript and then to convert the PostScript into PCL XL. Can you please try to set up your printer with the attached PPD file? TRhe difference to the original is the following: -- --- /home/till/printing/foomatic/foomatic/foomatic-db/db/source/PPD/Ricoh/PXL/Ricoh-MP_C5503_PXL.ppd 2018-02-11 17:19:34.966351964 +0100 +++ ./Ricoh-MP_C5503_PXL.ppd2019-01-18 15:46:25.888616617 +0100 @@ -58,6 +58,10 @@ (gs -q -dBATCH -dPARANOIDSAFER -dNOPAUSE -dNOINTERPOLATE %B%A%C %D%E | perl -p -e s/^\x1b\x25-12345X// | perl -p -e s/\xc1\x01\x00\xf8\x31\x44/\x44/g); (printf @PJL\n@PJL EOJ\n\033%%-12345X)" *End +*FoomaticRIPCommandLinePDF: "(printf \033%%-12345X@PJL\n@PJL JOB\n@PJL SET COPIES=\n%G|perl -p -e s/\x26copies\x3b/1/); +(gs -q -dBATCH -dPARANOIDSAFER -dNOPAUSE -dNOINTERPOLATE %B%A%C %D%E | perl -p -e s/^\x1b\x25-12345X// | perl -p -e s/\xc1\x01\x00\xf8\x31\x44/\x44/g); +(printf @PJL\n@PJL EOJ\n\033%%-12345X)" +*End *%== Basic Device Capabilities == -- I simply have copied the part which defines the Ghostscript command line with the copy using the keyword "*FoomaticRIPCommandLinePDF:" instead of "*FoomaticRIPCommandLine:". This tells foomatic-rip that the command line is also vald for PDF input and no conversion to PostScript is required. If this solves the problem, I recommend to do this for all non- PostScript PPD files. ** Attachment added: "Ricoh-MP_C5503_PXL.ppd" https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+attachment/5230310/+files/Ricoh-MP_C5503_PXL.ppd -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1801496 Title: Printing job in 16.04 is slower than in 14.04 Status in cups package in Ubuntu: Incomplete Bug description: Ubuntu 16.04LTS OS Version： 16.04.5 CUPS Version： 2.1.3 Ghostscript Version： 9.25 （2018-09-13） Printing job in 16.04 is slower than in 14.04 We(RICOH printer driver developer) are report a problem from our printer users: I print file Ubuntu 14.04.5, CUPS 2.1.3,Ghostscript 9.25 is fast(12 Seconds). But, after I update to Ubuntu 16.04, CUPS 2.1.3, Ghostscript 9.25, I print the same file with the same driver is slow(326 Seconds). I figure out that all the print jobs is much slower on Ubuntu 16.04. I view the "CUPS Error Log", it shows that there are three points which maybe the reasons that makes the print job slowly. FIRST: By counting the time from "Starting renderer" to "renderer exited with status 0", we figure out that 16.04 spend more time than 14.04 on "renderer" process. So we assuming that："renderer" is one of the key process that makes the print job slowly. "Starting renderer with command: \"printf \'\\033%%-12345X@PJL JOB\\012\';printf \'@PJL SET DATAMODE=TWIN\\ @PJL EOJ\\012\\033%%-12345X\'\"" . renderer exited with status 0" SECOND: On 16.04, a print job outputs lots of logs as below: "[Job xxx] Removing document files." This step(“Removing document files”)does not exsit on 14.04. The phenomenon that print jobs slower in 16.04 is more obvious when printing many jobs in the same time. THIRD We tried drivers form other company(HP,Brother…), the printings also slow down in Ubuntu 16.04 than 14.04. Our question is: 1. Do you have any plan to improve the performance of printing on Ubuntu 16.04? 2. Do you have any workaround before this problems fixed? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1801496] Re: Printing job in 16.04 is slower than in 14.04
One thing you should test is to run Ghostscript separately. For this, take the Ghostscript command line from the error_log and feed your PDF file directly into it. How long does it take? Is it much faster than running as part of the print job? Or is it more or less the same? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1801496 Title: Printing job in 16.04 is slower than in 14.04 Status in cups package in Ubuntu: Incomplete Bug description: Ubuntu 16.04LTS OS Version： 16.04.5 CUPS Version： 2.1.3 Ghostscript Version： 9.25 （2018-09-13） Printing job in 16.04 is slower than in 14.04 We(RICOH printer driver developer) are report a problem from our printer users: I print file Ubuntu 14.04.5, CUPS 2.1.3,Ghostscript 9.25 is fast(12 Seconds). But, after I update to Ubuntu 16.04, CUPS 2.1.3, Ghostscript 9.25, I print the same file with the same driver is slow(326 Seconds). I figure out that all the print jobs is much slower on Ubuntu 16.04. I view the "CUPS Error Log", it shows that there are three points which maybe the reasons that makes the print job slowly. FIRST: By counting the time from "Starting renderer" to "renderer exited with status 0", we figure out that 16.04 spend more time than 14.04 on "renderer" process. So we assuming that："renderer" is one of the key process that makes the print job slowly. "Starting renderer with command: \"printf \'\\033%%-12345X@PJL JOB\\012\';printf \'@PJL SET DATAMODE=TWIN\\ @PJL EOJ\\012\\033%%-12345X\'\"" . renderer exited with status 0" SECOND: On 16.04, a print job outputs lots of logs as below: "[Job xxx] Removing document files." This step(“Removing document files”)does not exsit on 14.04. The phenomenon that print jobs slower in 16.04 is more obvious when printing many jobs in the same time. THIRD We tried drivers form other company(HP,Brother…), the printings also slow down in Ubuntu 16.04 than 14.04. Our question is: 1. Do you have any plan to improve the performance of printing on Ubuntu 16.04? 2. Do you have any workaround before this problems fixed? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1801496] Re: Printing job in 16.04 is slower than in 14.04
Dear Till, Thank you very much for taking your time to help investigate this issue and providing us a way to judge if "Ghostscript" causes the slowdown of "pdftops" even when you are so busy. If possible, can you do us a favor on the below investigation： We found that Ricoh PS driver does not slow down very much actually, we found that the drivers which uses "pxlcolor / pxlmono" slow down obviously, so we provided error_log of Ricoh pxlcolor driver in #9. You can refer to the error_log in #9 on this page. In this log, we can see that the time interval between [Starting process "renderer"] and [Closing renderer] really slowdown obviously in Ubuntu 16.04 than in 14.04. In the interval, there is "Running command line for gs". We doubted that maybe the Ghostscript causes the slow down, but the developer of Ghostscript proved that the gs only slowdown very little time. Please refer to https://bugs.ghostscript.com/show_bug.cgi?id=700380 So, we doubted that maybe the module around Ghostscript(for example: foomatic-rip) causes the slow down. Could you have a look at the log in #9 (and later), and do some analysis when you have time? If you have further investigation result, it’s appreciated to share with us. Best Regards, -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1801496 Title: Printing job in 16.04 is slower than in 14.04 Status in cups package in Ubuntu: Incomplete Bug description: Ubuntu 16.04LTS OS Version： 16.04.5 CUPS Version： 2.1.3 Ghostscript Version： 9.25 （2018-09-13） Printing job in 16.04 is slower than in 14.04 We(RICOH printer driver developer) are report a problem from our printer users: I print file Ubuntu 14.04.5, CUPS 2.1.3,Ghostscript 9.25 is fast(12 Seconds). But, after I update to Ubuntu 16.04, CUPS 2.1.3, Ghostscript 9.25, I print the same file with the same driver is slow(326 Seconds). I figure out that all the print jobs is much slower on Ubuntu 16.04. I view the "CUPS Error Log", it shows that there are three points which maybe the reasons that makes the print job slowly. FIRST: By counting the time from "Starting renderer" to "renderer exited with status 0", we figure out that 16.04 spend more time than 14.04 on "renderer" process. So we assuming that："renderer" is one of the key process that makes the print job slowly. "Starting renderer with command: \"printf \'\\033%%-12345X@PJL JOB\\012\';printf \'@PJL SET DATAMODE=TWIN\\ @PJL EOJ\\012\\033%%-12345X\'\"" . renderer exited with status 0" SECOND: On 16.04, a print job outputs lots of logs as below: "[Job xxx] Removing document files." This step(“Removing document files”)does not exsit on 14.04. The phenomenon that print jobs slower in 16.04 is more obvious when printing many jobs in the same time. THIRD We tried drivers form other company(HP,Brother…), the printings also slow down in Ubuntu 16.04 than 14.04. Our question is: 1. Do you have any plan to improve the performance of printing on Ubuntu 16.04? 2. Do you have any workaround before this problems fixed? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1801496] Re: Printing job in 16.04 is slower than in 14.04
Sorry for the late reply, I had some other more urgent tasks to do. I have looked into your log. foomatic-rip was running for 5 seconds (09:09:52 - 09:09:57) and it ran this time due to the Ghostscript process it called and which by itself ran at least 4 seconds. This does not look for a very long time and if you think this is for the document which you had sent, it is a problem of Ghostscript. As foomatic-rip calls the pdftops filter of cups-filters and then pdftops calls Ghostscript for actually converting the incoming PDF to PostScript, you can let pdftops use Poppler instead of Ghostscript for this task to see whether Poppler processes the job more quickly. To switch pdftops to Poppler, use the "pdftops-renderer=pdftops" option (see README of cups-filters, /usr/share/doc/cups-filters/README.gz). If with Poppler your jobs go more quickly, report a bug on www.ghostscript.com, supplying a sample input file and the Ghostscript command line (you find it in CUPS' error_log). Before doing this please also try to run the Ghostscript command line directly on the input file from a terminal window, to check whether Ghostscript was really that slow. Also printing very many and/or big jobs in a row and observing the output of the "top" command could help. If the problem is not the slowness of Ghostscript but the "Removing document files." task afterwards taking a full minute (does this make the next job wait that minute?) report a bug on www.cups.org. Note that this delay is not caused by Ghostscript or foomatic-rip as these processes had already ended before. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1801496 Title: Printing job in 16.04 is slower than in 14.04 Status in cups package in Ubuntu: Incomplete Bug description: Ubuntu 16.04LTS OS Version： 16.04.5 CUPS Version： 2.1.3 Ghostscript Version： 9.25 （2018-09-13） Printing job in 16.04 is slower than in 14.04 We(RICOH printer driver developer) are report a problem from our printer users: I print file Ubuntu 14.04.5, CUPS 2.1.3,Ghostscript 9.25 is fast(12 Seconds). But, after I update to Ubuntu 16.04, CUPS 2.1.3, Ghostscript 9.25, I print the same file with the same driver is slow(326 Seconds). I figure out that all the print jobs is much slower on Ubuntu 16.04. I view the "CUPS Error Log", it shows that there are three points which maybe the reasons that makes the print job slowly. FIRST: By counting the time from "Starting renderer" to "renderer exited with status 0", we figure out that 16.04 spend more time than 14.04 on "renderer" process. So we assuming that："renderer" is one of the key process that makes the print job slowly. "Starting renderer with command: \"printf \'\\033%%-12345X@PJL JOB\\012\';printf \'@PJL SET DATAMODE=TWIN\\ @PJL EOJ\\012\\033%%-12345X\'\"" . renderer exited with status 0" SECOND: On 16.04, a print job outputs lots of logs as below: "[Job xxx] Removing document files." This step(“Removing document files”)does not exsit on 14.04. The phenomenon that print jobs slower in 16.04 is more obvious when printing many jobs in the same time. THIRD We tried drivers form other company(HP,Brother…), the printings also slow down in Ubuntu 16.04 than 14.04. Our question is: 1. Do you have any plan to improve the performance of printing on Ubuntu 16.04? 2. Do you have any workaround before this problems fixed? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1801496] Re: Printing job in 16.04 is slower than in 14.04
Dear Till, I'am very sorry to bother you again. But we have to ask you do me a favor to investigate why cups-filter(foomatic-rip) process takes more time, cause cups-filter(foomatic-rip)'s investigation is beyond our ability. We had investigate all printing related filter, and figure out that cups-filter(foomatic-rip) is the key filter that slowdown the printing performance. We are still working hard to looking for cause why Ubuntu 16.04 printing performance slowdown. And many printer users are affected by this problem, they are eagerly want to known the reason why cause this problem and get a effective method to improve printing performance. We appreciate that you can do we a favor on the investigation why 16.04's printing performance slowdown. And if possible, can you share the investigation result or schedule(date or current statues:Pending/Investigating/Closed) with us. Thanks very much. Best Regards, -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1801496 Title: Printing job in 16.04 is slower than in 14.04 Status in cups package in Ubuntu: Incomplete Bug description: Ubuntu 16.04LTS OS Version： 16.04.5 CUPS Version： 2.1.3 Ghostscript Version： 9.25 （2018-09-13） Printing job in 16.04 is slower than in 14.04 We(RICOH printer driver developer) are report a problem from our printer users: I print file Ubuntu 14.04.5, CUPS 2.1.3,Ghostscript 9.25 is fast(12 Seconds). But, after I update to Ubuntu 16.04, CUPS 2.1.3, Ghostscript 9.25, I print the same file with the same driver is slow(326 Seconds). I figure out that all the print jobs is much slower on Ubuntu 16.04. I view the "CUPS Error Log", it shows that there are three points which maybe the reasons that makes the print job slowly. FIRST: By counting the time from "Starting renderer" to "renderer exited with status 0", we figure out that 16.04 spend more time than 14.04 on "renderer" process. So we assuming that："renderer" is one of the key process that makes the print job slowly. "Starting renderer with command: \"printf \'\\033%%-12345X@PJL JOB\\012\';printf \'@PJL SET DATAMODE=TWIN\\ @PJL EOJ\\012\\033%%-12345X\'\"" . renderer exited with status 0" SECOND: On 16.04, a print job outputs lots of logs as below: "[Job xxx] Removing document files." This step(“Removing document files”)does not exsit on 14.04. The phenomenon that print jobs slower in 16.04 is more obvious when printing many jobs in the same time. THIRD We tried drivers form other company(HP,Brother…), the printings also slow down in Ubuntu 16.04 than 14.04. Our question is: 1. Do you have any plan to improve the performance of printing on Ubuntu 16.04? 2. Do you have any workaround before this problems fixed? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1801496] Re: Printing job in 16.04 is slower than in 14.04
Dear Till, Happy new year! I'am very sorry to bother you again. We are still working hard to looking for cause why Ubuntu 16.04 printing performance slowdown. Here are some information that may can be helpful for the investigation: We figure out that "foomatic-rip" is the key object which slowdown printing performance. Satistics the time of "foomatic-rip" use by the method of counting the time from “[Job 691] Started filter /usr/lib/cups/filter/foomatic-rip” to “ [Job 691] PID 11751 (/usr/lib/cups/filter/foomatic-rip) exited with no errors.” Attach file introduction: -- CUPS_Log_14.04_16.04.xlsx: Log Satistics -- Best Regards, ** Attachment added: "CUPS_Log_14.04_16.04.zip" https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+attachment/5226865/+files/CUPS_Log_14.04_16.04.zip -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1801496 Title: Printing job in 16.04 is slower than in 14.04 Status in cups package in Ubuntu: Incomplete Bug description: Ubuntu 16.04LTS OS Version： 16.04.5 CUPS Version： 2.1.3 Ghostscript Version： 9.25 （2018-09-13） Printing job in 16.04 is slower than in 14.04 We(RICOH printer driver developer) are report a problem from our printer users: I print file Ubuntu 14.04.5, CUPS 2.1.3,Ghostscript 9.25 is fast(12 Seconds). But, after I update to Ubuntu 16.04, CUPS 2.1.3, Ghostscript 9.25, I print the same file with the same driver is slow(326 Seconds). I figure out that all the print jobs is much slower on Ubuntu 16.04. I view the "CUPS Error Log", it shows that there are three points which maybe the reasons that makes the print job slowly. FIRST: By counting the time from "Starting renderer" to "renderer exited with status 0", we figure out that 16.04 spend more time than 14.04 on "renderer" process. So we assuming that："renderer" is one of the key process that makes the print job slowly. "Starting renderer with command: \"printf \'\\033%%-12345X@PJL JOB\\012\';printf \'@PJL SET DATAMODE=TWIN\\ @PJL EOJ\\012\\033%%-12345X\'\"" . renderer exited with status 0" SECOND: On 16.04, a print job outputs lots of logs as below: "[Job xxx] Removing document files." This step(“Removing document files”)does not exsit on 14.04. The phenomenon that print jobs slower in 16.04 is more obvious when printing many jobs in the same time. THIRD We tried drivers form other company(HP,Brother…), the printings also slow down in Ubuntu 16.04 than 14.04. Our question is: 1. Do you have any plan to improve the performance of printing on Ubuntu 16.04? 2. Do you have any workaround before this problems fixed? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1801496] Re: Printing job in 16.04 is slower than in 14.04
Dear Till, I'am very sorry to bother you again. We are still working hard to looking for cause why Ubuntu 16.04 printing performance slowdown. We doing the investigation whether GhostScript slowdown the printing performance with GhostScript Developer. But they figure out that GhostScript affected very small. we use the below command to test many version ghostscript's printing performance on Ubuntu 16.04 and Ubuntu 14.04. "./gs -q -dBATCH -dPARANOIDSAFER -dNOPAUSE -dNOINTERPOLATE -sDEVICE=pxlcolor -r600x600 -sPAPERSIZE=a4 -sOutputFile=/dev/null sample.pdf" We think that CUPS may be the key to slowdown the printing performance. Below is our research on CUPS process: 1. We use a script tool (print_sample.sh) to simulate printing many jobs (10 and 20) in the one time. 2. Satistics the print time of each print round jobs by the method of counting the time from “Adding start banner page "none".” To “Job completed.” The result (test_cases_detail_times.xlsx) shows that Ubuntu 16.04 cost almost twice time then Ubuntu 14.04. We are not able to research deeper why Ubuntu 16.04 slowdown. So we appreciate that CUPS can do the investigation why 16.04's printing performance slowdown. Attach file introduction: -- Test log: Test Shell Tool: \log\print_sample.sh Test Sample File: \log\sample.pdf Test Detail Time: \log\test_cases_detail_times.xlsx Ubuntu14.04,Job881-Job980:\log\Ubuntu_14.04_error_log_Job881_980 Ubuntu16.04,Job721-Job820:\log\Ubuntu_16.04_error_log_Job721_820 -- Test Driver: Driver carry by Ubuntu14.04 and Ubuntu16.04 itself :”Ricoh MP C5503 PXL” We test many commercial’s drivers (below), it shows that other drivers(use ghostsrcipt) have the similar slower phenomenon: HP Color LaserJet 2500 Foomatic/pxlcolor HP Color LaserJet 3600 Foomatic/pxljr Brother HL-7050 Foomatic/pxlmono Brother MFC9840CDW Foomatic/pxlcolor GhostScript discussion reference: https://bugs.ghostscript.com/show_bug.cgi?id=700380 Best Regards, ?field.comment=Dear Till, I'am very sorry to bother you again. We are still working hard to looking for cause why Ubuntu 16.04 printing performance slowdown. We doing the investigation whether GhostScript slowdown the printing performance with GhostScript Developer. But they figure out that GhostScript affected very small. we use the below command to test many version ghostscript's printing performance on Ubuntu 16.04 and Ubuntu 14.04. "./gs -q -dBATCH -dPARANOIDSAFER -dNOPAUSE -dNOINTERPOLATE -sDEVICE=pxlcolor -r600x600 -sPAPERSIZE=a4 -sOutputFile=/dev/null sample.pdf" We think that CUPS may be the key to slowdown the printing performance. Below is our research on CUPS process: 1. We use a script tool (print_sample.sh) to simulate printing many jobs (10 and 20) in the one time. 2. Satistics the print time of each print round jobs by the method of counting the time from “Adding start banner page "none".” To “Job completed.” The result (test_cases_detail_times.xlsx) shows that Ubuntu 16.04 cost almost twice time then Ubuntu 14.04. We are not able to research deeper why Ubuntu 16.04 slowdown. So we appreciate that CUPS can do the investigation why 16.04's printing performance slowdown. Attach file introduction: -- Test log: Test Shell Tool: \log\print_sample.sh Test Sample File: \log\sample.pdf Test Detail Time: \log\test_cases_detail_times.xlsx Ubuntu14.04,Job881-Job980:\log\Ubuntu_14.04_error_log_Job881_980 Ubuntu16.04,Job721-Job820:\log\Ubuntu_16.04_error_log_Job721_820 -- Test Driver: Driver carry by Ubuntu14.04 and Ubuntu16.04 itself :”Ricoh MP C5503 PXL” We test many commercial’s drivers (below), it shows that other drivers(use ghostsrcipt) have the similar slower phenomenon: HP Color LaserJet 2500 Foomatic/pxlcolor HP Color LaserJet 3600 Foomatic/pxljr Brother HL-7050 Foomatic/pxlmono Brother MFC9840CDW Foomatic/pxlcolor GhostScript discussion reference: https://bugs.ghostscript.com/show_bug.cgi?id=700380 Best Regards, ** Bug watch added: Ghostscript (AFPL) Bugzilla #700380 http://bugs.ghostscript.com/show_bug.cgi?id=700380 ** Attachment added: "20181227 log file" https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+attachment/5225286/+files/log.zip -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1801496 Title: Printing job in 16.04 is slower than in 14.04 Status in cups package in Ubuntu: Incomplete Bug description: Ubuntu 16.04LTS OS Version： 16.04.5 CUPS Version： 2.1.3 Ghostscript Version： 9.25 （2018-09-13） Printing job in 16.04 is
[Touch-packages] [Bug 1801496] Re: Printing job in 16.04 is slower than in 14.04
Dear Till, I'am very sorry to bother you again. We are still working hard to looking for cause why Ubuntu 16.04 printing performance slowdown. We figure out that there are many cause may slowdown the print job. The other cause than OS may slowdown the print job, and we are working on those cause’s investigation. Here are some slowdown point about OS issues that we can't investigation deeper, we hope that you(or your team) can offer a help for the investigation. The phenomenon that print jobs slower in 16.04 is more obvious when printing many single page jobs in the same time. We use a printing manual to simulate the continuous printing. The printing result shows that Ubuntu 16.04 is slower than 14.04. Below is the printing time: Ubuntu 14.04: Round 1: 12.86(s) Round 2: 12.56(s) Aver: 12.73(s) Ubuntu 16.04: Round 1: 14.09(s) Round 2: 13.98(s) Aver: 14.29(s) Attach file introduction: Test log: \PS_Driver_log\PS_Driver_log\Log\error_log20181204_14.04Origin_A4_7ods_job47_53 \PS_Driver_log\PS_Driver_log\Log\error_log20181204_16.04Origin_A4_7ods_job83_89 Test Driver: \PS_Driver_log\PS_Driver\Ricoh-Basic-PS-PPDv1.12.1.tar.gz Test file: \PS_Driver_log\Testfile\testlinux.ods Printing manual: \PS_Driver_log.zip\TestManualOfContinuousPrinting.docx By the way, the printing performance is unstable, some times the slowdown of Ubuntu 16.04 is obvious. But what we can confirm is that Ubuntu 16.04 is slower all the time. We appreciate that you can do we a favor on the investigation why 16.04's printing performance slowdown. Best Regards, ** Attachment added: "PS_Driver_log.zip" https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+attachment/5219187/+files/PS_Driver_log.zip -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1801496 Title: Printing job in 16.04 is slower than in 14.04 Status in cups package in Ubuntu: Incomplete Bug description: Ubuntu 16.04LTS OS Version： 16.04.5 CUPS Version： 2.1.3 Ghostscript Version： 9.25 （2018-09-13） Printing job in 16.04 is slower than in 14.04 We(RICOH printer driver developer) are report a problem from our printer users: I print file Ubuntu 14.04.5, CUPS 2.1.3,Ghostscript 9.25 is fast(12 Seconds). But, after I update to Ubuntu 16.04, CUPS 2.1.3, Ghostscript 9.25, I print the same file with the same driver is slow(326 Seconds). I figure out that all the print jobs is much slower on Ubuntu 16.04. I view the "CUPS Error Log", it shows that there are three points which maybe the reasons that makes the print job slowly. FIRST: By counting the time from "Starting renderer" to "renderer exited with status 0", we figure out that 16.04 spend more time than 14.04 on "renderer" process. So we assuming that："renderer" is one of the key process that makes the print job slowly. "Starting renderer with command: \"printf \'\\033%%-12345X@PJL JOB\\012\';printf \'@PJL SET DATAMODE=TWIN\\ @PJL EOJ\\012\\033%%-12345X\'\"" . renderer exited with status 0" SECOND: On 16.04, a print job outputs lots of logs as below: "[Job xxx] Removing document files." This step(“Removing document files”)does not exsit on 14.04. The phenomenon that print jobs slower in 16.04 is more obvious when printing many jobs in the same time. THIRD We tried drivers form other company(HP,Brother…), the printings also slow down in Ubuntu 16.04 than 14.04. Our question is: 1. Do you have any plan to improve the performance of printing on Ubuntu 16.04? 2. Do you have any workaround before this problems fixed? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1801496] Re: Printing job in 16.04 is slower than in 14.04
Dear Till, Thanks for your investigation of this problem. Below are the information we found maybe helpful for the investigation: As we said before:"The phenomenon that print jobs slower in 16.04 is more obvious when printing many jobs in the same time." We figure out that the interval time of one print job to the next print job is huge when print many jobs in the same time. And the error_log files shows that the step below takes time , this step is only exist in 16.04: "Expiring subscriptions..." Attach file description: File 1: error_log.1-16.04-orca-rpdl-20181113_Job284_290: error_log of Job284 to Job 290 is the consecutive printing 7 jobs on 16.04 in the same time. File 2:error_log.2-14.04-orca-rpdl-20181114_Job327_332 : error_log of Job327 to Job 332 is the consecutive printing 7 jobs on 14.04 in the same time. --- By the way, we did the ghostscript investigation of you advice, but we didn't found it cause the slowdown problem. Best Regards, ** Attachment added: "LogConsecutivePrinting.zip" https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+attachment/5213036/+files/LogConsecutivePrinting.zip -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1801496 Title: Printing job in 16.04 is slower than in 14.04 Status in cups package in Ubuntu: Incomplete Bug description: Ubuntu 16.04LTS OS Version： 16.04.5 CUPS Version： 2.1.3 Ghostscript Version： 9.25 （2018-09-13） Printing job in 16.04 is slower than in 14.04 We(RICOH printer driver developer) are report a problem from our printer users: I print file Ubuntu 14.04.5, CUPS 2.1.3,Ghostscript 9.25 is fast(12 Seconds). But, after I update to Ubuntu 16.04, CUPS 2.1.3, Ghostscript 9.25, I print the same file with the same driver is slow(326 Seconds). I figure out that all the print jobs is much slower on Ubuntu 16.04. I view the "CUPS Error Log", it shows that there are three points which maybe the reasons that makes the print job slowly. FIRST: By counting the time from "Starting renderer" to "renderer exited with status 0", we figure out that 16.04 spend more time than 14.04 on "renderer" process. So we assuming that："renderer" is one of the key process that makes the print job slowly. "Starting renderer with command: \"printf \'\\033%%-12345X@PJL JOB\\012\';printf \'@PJL SET DATAMODE=TWIN\\ @PJL EOJ\\012\\033%%-12345X\'\"" . renderer exited with status 0" SECOND: On 16.04, a print job outputs lots of logs as below: "[Job xxx] Removing document files." This step(“Removing document files”)does not exsit on 14.04. The phenomenon that print jobs slower in 16.04 is more obvious when printing many jobs in the same time. THIRD We tried drivers form other company(HP,Brother…), the printings also slow down in Ubuntu 16.04 than 14.04. Our question is: 1. Do you have any plan to improve the performance of printing on Ubuntu 16.04? 2. Do you have any workaround before this problems fixed? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1801496] Re: Printing job in 16.04 is slower than in 14.04
I have looked into the error_log files and the processing by the filters
on 16.04 takes ~20 seconds and on 14.04 less time. The 326 seconds you
observe on 16.04 is caused by the printer's processing of the PostScript
it receives. The PostScript is generated by Ghostscript (you find the
Ghostscript command lines used in the error_log files).
So it seems that the newer Ghostscript version used by 16.04 is
processed much slower by your printer than the PostScript of 14.04's
Ghostscript version.
Next thing you should investigate is to directly run the Ghostscript
command lines with your file in a terminal window, once on 14.04 and
once on 16.04. Send the resulting files directly to the printer ("lp -d
... -o raw ..." or "nc -w1 9100 < ".) If you get the same
time difference, please post a bug report on Ghostscript,
http://www.ghostscript.org/.
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https://bugs.launchpad.net/bugs/1801496
Title:
Printing job in 16.04 is slower than in 14.04
Status in cups package in Ubuntu:
Incomplete
Bug description:
Ubuntu 16.04LTS
OS Version： 16.04.5
CUPS Version： 2.1.3
Ghostscript Version： 9.25 （2018-09-13）
Printing job in 16.04 is slower than in 14.04
We(RICOH printer driver developer) are report a problem from our printer
users:
I print file Ubuntu 14.04.5, CUPS 2.1.3,Ghostscript 9.25 is fast(12 Seconds).
But, after I update to Ubuntu 16.04, CUPS 2.1.3, Ghostscript 9.25, I
print the same file with the same driver is slow(326 Seconds).
I figure out that all the print jobs is much slower on Ubuntu 16.04.
I view the "CUPS Error Log", it shows that there are three points
which maybe the reasons that makes the print job slowly.
FIRST:
By counting the time from "Starting renderer" to "renderer exited with status
0", we figure out that 16.04 spend more time than 14.04 on "renderer" process.
So we assuming that："renderer" is one of the key process that makes the print
job slowly.
"Starting renderer with command: \"printf \'\\033%%-12345X@PJL
JOB\\012\';printf \'@PJL SET DATAMODE=TWIN\\ @PJL
EOJ\\012\\033%%-12345X\'\""
.
renderer exited with status 0"
SECOND:
On 16.04, a print job outputs lots of logs as below:
"[Job xxx] Removing document files."
This step(“Removing document files”)does not exsit on 14.04.
The phenomenon that print jobs slower in 16.04 is more obvious when printing
many jobs in the same time.
THIRD
We tried drivers form other company(HP,Brother…), the printings also slow
down in Ubuntu 16.04 than 14.04.
Our question is:
1. Do you have any plan to improve the performance of printing on Ubuntu
16.04?
2. Do you have any workaround before this problems fixed?
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+subscriptions
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[Touch-packages] [Bug 1801496] Re: Printing job in 16.04 is slower than in 14.04
Dear, Our user have huge printing job to do in the next week(November 20). So, they are eagerly want to know that can we offer them an workaround(an fixed solution would be best) for this slowdown problem. We(RICOH printer driver developer) are still working hard to looking for an workaround to make sure our printer user can do their job normally before your official solution. We appreciate that you can private it to us if you have one. We hope that offer us the approximate time that Ubuntu fixed this problem. If possible can you share the investigation so far with us. Best Regards -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1801496 Title: Printing job in 16.04 is slower than in 14.04 Status in cups package in Ubuntu: Incomplete Bug description: Ubuntu 16.04LTS OS Version： 16.04.5 CUPS Version： 2.1.3 Ghostscript Version： 9.25 （2018-09-13） Printing job in 16.04 is slower than in 14.04 We(RICOH printer driver developer) are report a problem from our printer users: I print file Ubuntu 14.04.5, CUPS 2.1.3,Ghostscript 9.25 is fast(12 Seconds). But, after I update to Ubuntu 16.04, CUPS 2.1.3, Ghostscript 9.25, I print the same file with the same driver is slow(326 Seconds). I figure out that all the print jobs is much slower on Ubuntu 16.04. I view the "CUPS Error Log", it shows that there are three points which maybe the reasons that makes the print job slowly. FIRST: By counting the time from "Starting renderer" to "renderer exited with status 0", we figure out that 16.04 spend more time than 14.04 on "renderer" process. So we assuming that："renderer" is one of the key process that makes the print job slowly. "Starting renderer with command: \"printf \'\\033%%-12345X@PJL JOB\\012\';printf \'@PJL SET DATAMODE=TWIN\\ @PJL EOJ\\012\\033%%-12345X\'\"" . renderer exited with status 0" SECOND: On 16.04, a print job outputs lots of logs as below: "[Job xxx] Removing document files." This step(“Removing document files”)does not exsit on 14.04. The phenomenon that print jobs slower in 16.04 is more obvious when printing many jobs in the same time. THIRD We tried drivers form other company(HP,Brother…), the printings also slow down in Ubuntu 16.04 than 14.04. Our question is: 1. Do you have any plan to improve the performance of printing on Ubuntu 16.04? 2. Do you have any workaround before this problems fixed? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1801496] Re: Printing job in 16.04 is slower than in 14.04
Below are the information about this slowdown problem: 1.cups-filters version: Ubuntu 16.04：cups-filters 1.8.3-2ubuntu3.4 Ubuntu 14.04：cups-filters 1.0.52-0ubuntu1.7 2.Print file: Log_PrintFile_Drivers.zip/j9_5Page.pdf 3.CUPS error_log Log_PrintFile_Drivers.zip/error_log14.04 Log_PrintFile_Drivers.zip/error_log16.04 4.Test Driver Log_PrintFile_Drivers.zip/ricohrpdlbasic_1.0.1-0_amd64.deb ** Attachment added: "Log, Print File and tset driver" https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+attachment/5210726/+files/Log_PrintFile_Drivers.zip -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1801496 Title: Printing job in 16.04 is slower than in 14.04 Status in cups package in Ubuntu: Incomplete Bug description: Ubuntu 16.04LTS OS Version： 16.04.5 CUPS Version： 2.1.3 Ghostscript Version： 9.25 （2018-09-13） Printing job in 16.04 is slower than in 14.04 We(RICOH printer driver developer) are report a problem from our printer users: I print file Ubuntu 14.04.5, CUPS 2.1.3,Ghostscript 9.25 is fast(12 Seconds). But, after I update to Ubuntu 16.04, CUPS 2.1.3, Ghostscript 9.25, I print the same file with the same driver is slow(326 Seconds). I figure out that all the print jobs is much slower on Ubuntu 16.04. I view the "CUPS Error Log", it shows that there are three points which maybe the reasons that makes the print job slowly. FIRST: By counting the time from "Starting renderer" to "renderer exited with status 0", we figure out that 16.04 spend more time than 14.04 on "renderer" process. So we assuming that："renderer" is one of the key process that makes the print job slowly. "Starting renderer with command: \"printf \'\\033%%-12345X@PJL JOB\\012\';printf \'@PJL SET DATAMODE=TWIN\\ @PJL EOJ\\012\\033%%-12345X\'\"" . renderer exited with status 0" SECOND: On 16.04, a print job outputs lots of logs as below: "[Job xxx] Removing document files." This step(“Removing document files”)does not exsit on 14.04. The phenomenon that print jobs slower in 16.04 is more obvious when printing many jobs in the same time. THIRD We tried drivers form other company(HP,Brother…), the printings also slow down in Ubuntu 16.04 than 14.04. Our question is: 1. Do you have any plan to improve the performance of printing on Ubuntu 16.04? 2. Do you have any workaround before this problems fixed? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1801496] Re: Printing job in 16.04 is slower than in 14.04
To find out about the slowing down I need some more information: Please attach one or more files which you have printed and where you have observed the slowdown. Also post error_log files (in debug mode, see "CUPS error_log" section of https://wiki.ubuntu.com/DebuggingPrintingProblems) of jobs on 14.04 (without slowdown) and the same jobs on 16.04 (with slowdown), so that I can see the difference. Also tell which version of cups-filters was used on 14.04 and 16.04 in your case. ** Changed in: cups (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1801496 Title: Printing job in 16.04 is slower than in 14.04 Status in cups package in Ubuntu: Incomplete Bug description: Ubuntu 16.04LTS OS Version： 16.04.5 CUPS Version： 2.1.3 Ghostscript Version： 9.25 （2018-09-13） Printing job in 16.04 is slower than in 14.04 We(RICOH printer driver developer) are report a problem from our printer users: I print file Ubuntu 14.04.5, CUPS 2.1.3,Ghostscript 9.25 is fast(12 Seconds). But, after I update to Ubuntu 16.04, CUPS 2.1.3, Ghostscript 9.25, I print the same file with the same driver is slow(326 Seconds). I figure out that all the print jobs is much slower on Ubuntu 16.04. I view the "CUPS Error Log", it shows that there are three points which maybe the reasons that makes the print job slowly. FIRST: By counting the time from "Starting renderer" to "renderer exited with status 0", we figure out that 16.04 spend more time than 14.04 on "renderer" process. So we assuming that："renderer" is one of the key process that makes the print job slowly. "Starting renderer with command: \"printf \'\\033%%-12345X@PJL JOB\\012\';printf \'@PJL SET DATAMODE=TWIN\\ @PJL EOJ\\012\\033%%-12345X\'\"" . renderer exited with status 0" SECOND: On 16.04, a print job outputs lots of logs as below: "[Job xxx] Removing document files." This step(“Removing document files”)does not exsit on 14.04. The phenomenon that print jobs slower in 16.04 is more obvious when printing many jobs in the same time. THIRD We tried drivers form other company(HP,Brother…), the printings also slow down in Ubuntu 16.04 than 14.04. Our question is: 1. Do you have any plan to improve the performance of printing on Ubuntu 16.04? 2. Do you have any workaround before this problems fixed? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1801496] Re: Printing job in 16.04 is slower than in 14.04
We are reported that users(who are affect by this problem ) can't do their job normally. Such as, doctors' consulting speed are seriously delay by the medical diagnostic document printing speed. We(RICOH printer driver developer) are still working hard to looking for an workaround to make sure our printer user can do their job normally before your official release. We appreciate that you can private it to us if you have one. By the way, more and more our printer driver users are affect by this problem. So, we are eagerly want to know that if Ubuntu is on the process of dealing with this problem? Can you offer us the approximate time that Ubuntu fixed this problem? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1801496 Title: Printing job in 16.04 is slower than in 14.04 Status in cups package in Ubuntu: New Bug description: Ubuntu 16.04LTS OS Version： 16.04.5 CUPS Version： 2.1.3 Ghostscript Version： 9.25 （2018-09-13） Printing job in 16.04 is slower than in 14.04 We(RICOH printer driver developer) are report a problem from our printer users: I print file Ubuntu 14.04.5, CUPS 2.1.3,Ghostscript 9.25 is fast(12 Seconds). But, after I update to Ubuntu 16.04, CUPS 2.1.3, Ghostscript 9.25, I print the same file with the same driver is slow(326 Seconds). I figure out that all the print jobs is much slower on Ubuntu 16.04. I view the "CUPS Error Log", it shows that there are three points which maybe the reasons that makes the print job slowly. FIRST: By counting the time from "Starting renderer" to "renderer exited with status 0", we figure out that 16.04 spend more time than 14.04 on "renderer" process. So we assuming that："renderer" is one of the key process that makes the print job slowly. "Starting renderer with command: \"printf \'\\033%%-12345X@PJL JOB\\012\';printf \'@PJL SET DATAMODE=TWIN\\ @PJL EOJ\\012\\033%%-12345X\'\"" . renderer exited with status 0" SECOND: On 16.04, a print job outputs lots of logs as below: "[Job xxx] Removing document files." This step(“Removing document files”)does not exsit on 14.04. The phenomenon that print jobs slower in 16.04 is more obvious when printing many jobs in the same time. THIRD We tried drivers form other company(HP,Brother…), the printings also slow down in Ubuntu 16.04 than 14.04. Our question is: 1. Do you have any plan to improve the performance of printing on Ubuntu 16.04? 2. Do you have any workaround before this problems fixed? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1801496] Re: Printing job in 16.04 is slower than in 14.04
** Package changed: ubuntu => cups (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to cups in Ubuntu. https://bugs.launchpad.net/bugs/1801496 Title: Printing job in 16.04 is slower than in 14.04 Status in cups package in Ubuntu: New Bug description: Ubuntu 16.04LTS OS Version： 16.04.5 CUPS Version： 2.1.3 Ghostscript Version： 9.25 （2018-09-13） Printing job in 16.04 is slower than in 14.04 We(RICOH printer driver developer) are report a problem from our printer users: I print file Ubuntu 14.04.5, CUPS 2.1.3,Ghostscript 9.25 is fast(12 Seconds). But, after I update to Ubuntu 16.04, CUPS 2.1.3, Ghostscript 9.25, I print the same file with the same driver is slow(326 Seconds). I figure out that all the print jobs is much slower on Ubuntu 16.04. I view the "CUPS Error Log", it shows that there are three points which maybe the reasons that makes the print job slowly. FIRST: By counting the time from "Starting renderer" to "renderer exited with status 0", we figure out that 16.04 spend more time than 14.04 on "renderer" process. So we assuming that："renderer" is one of the key process that makes the print job slowly. "Starting renderer with command: \"printf \'\\033%%-12345X@PJL JOB\\012\';printf \'@PJL SET DATAMODE=TWIN\\ @PJL EOJ\\012\\033%%-12345X\'\"" . renderer exited with status 0" SECOND: On 16.04, a print job outputs lots of logs as below: "[Job xxx] Removing document files." This step(“Removing document files”)does not exsit on 14.04. The phenomenon that print jobs slower in 16.04 is more obvious when printing many jobs in the same time. THIRD We tried drivers form other company(HP,Brother…), the printings also slow down in Ubuntu 16.04 than 14.04. Our question is: 1. Do you have any plan to improve the performance of printing on Ubuntu 16.04? 2. Do you have any workaround before this problems fixed? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1801496/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
