Re: [Samba] High CPU with 3.0.14a in FC4
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Brad Horrocks (Secure Office Services) wrote: | Jerry, | The strace I ran output is:- | | [EMAIL PROTECTED] samba]# strace -p 769 -cfqrT | % time seconds usecs/call callserrors syscall | -- --- --- - - | 49.57 32.179651 40805953 write | 20.04 13.007770 16806396 geteuid32 ... | | This was taken during the application startup which takes | upwards of 60 seconds... | | The qmail servers don't appear to be using any | additional cpu although it is hard to tell as qmail is | used only for 5 users. | | I noticed the getxattr errors and was wondering if the | upgrade from FC1 to FC4 (kernel 2.4 - 2.6) would | introduce some sort of application overhead for | acl's that was not present in the 2.4 kernel??? Just a thought. Probably not by default. Is this a print server by chance ? Have you run ethereal and looked to see if you have a chatty client? I'm wondering about those writes. cheers, jerry -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.0 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFC5jFpIR7qMdg1EfYRAlwaAJ9QDLdGtFk0xbqYkfRDYG6X+fZxQwCgkUCk pC8Zgn+ArTAXhny7soOzvU0= =MVsP -END PGP SIGNATURE- -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/listinfo/samba
Re: [Samba] High CPU with 3.0.14a in FC4
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Brad Horrocks (Secure Office Services) wrote: | The problem we are experiencing is that the standard | daemon processes [SMBD] are using significantly more | CPU [processes that were running a 10% are now running | at over 40%]. | | Has anybody seen or heard of this before or is this a | FC4 specific problem. The boxes are primarily Windows | file sharers but they do run qmail as well. I've found what I believe to be kerberos bugs in FC4. Brad, Can you do an strace and see what the processes are doing ? Are other servers (e.g. qmail) using more CPU as well? Or just smbd? Jay, have you observed any similar behavior (increaed CPU usage). cheers, jerry = Alleviating the pain of Windows(tm) --- http://www.samba.org GnuPG Key- http://www.plainjoe.org/gpg_public.asc I never saved anything for the swim back. Ethan Hawk in Gattaca -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.0 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFC5OQTIR7qMdg1EfYRAtwzAKDi/+Bu1P8UosaGTER2951K6PRejgCg259I bEwvLUPc1NJ+9DFUh0y63a4= =Xn+e -END PGP SIGNATURE- -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/listinfo/samba
Re: [Samba] High CPU with 3.0.14a in FC4
Jerry, The strace I ran output is:- [EMAIL PROTECTED] samba]# strace -p 769 -cfqrT % time seconds usecs/call callserrors syscall -- --- --- - - 49.57 32.179651 40805953 write 20.04 13.007770 16806396 geteuid32 17.97 11.667455 31373072 367 stat64 9.075.887281 19310574 time 1.030.669108 295 2271 select 0.900.582924 18 32319 32319 getxattr 0.480.314502 9 34337 gettimeofday 0.410.265785 117 2272 send 0.200.128447 98 1308 pread 0.110.072433 16 4543 read 0.070.045187 32 1434 getdents64 0.070.042480 21240 2 rename 0.030.018578 11 1717 fcntl64 0.020.009879 30 333 5 open 0.010.005523 9 616 fstat64 0.010.004163 13 318 close 0.000.003181 21 148 setresuid32 0.000.001974 5 398 getegid32 0.000.001259 7 187 176 kill 0.000.000971 7 148 setresgid32 0.000.000883 9 101 setgroups32 0.000.000762 5115 pwrite 0.000.000467 599 getgid32 0.000.000427 499 getuid32 0.000.000321 1129 flock 0.000.000282 141 2 unlink 0.000.000154 39 4 ftruncate64 0.000.78 11 7 dup2 0.000.77 26 3 brk 0.000.63 514 umask 0.000.50 17 3 chdir 0.000.50 17 3 1 lstat64 0.000.18 3 6 nanosleep 0.000.15 8 2 2 fgetxattr 0.000.12 12 1 getpeername 0.000.04 4 1 getgroups32 -- --- --- - - 100.00 64.912214 2378735 32870 total This was taken during the application startup which takes upwards of 60 seconds... The qmail servers don't appear to be using any additional cpu although it is hard to tell as qmail is used only for 5 users. I noticed the getxattr errors and was wondering if the upgrade from FC1 to FC4 (kernel 2.4 - 2.6) would introduce some sort of application overhead for acl's that was not present in the 2.4 kernel??? Just a thought. If there is anything else I can provide please let me know Regards Brad Horrocks -- Secure Office Services ABN 75 196 364 531 19 Burrendong Road COOMBABAH QLD 4216 Ph. +61 7 5537 4955 Fx. +61 7 5537 4966 web: http://www.secureoffice.com.au -- Original Message --- From: Gerald (Jerry) Carter [EMAIL PROTECTED] To: [EMAIL PROTECTED] Cc: samba@lists.samba.org, [EMAIL PROTECTED] Sent: Mon, 25 Jul 2005 08:07:31 -0500 Subject: Re: [Samba] High CPU with 3.0.14a in FC4 -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Brad Horrocks (Secure Office Services) wrote: | The problem we are experiencing is that the standard | daemon processes [SMBD] are using significantly more | CPU [processes that were running a 10% are now running | at over 40%]. | | Has anybody seen or heard of this before or is this a | FC4 specific problem. The boxes are primarily Windows | file sharers but they do run qmail as well. I've found what I believe to be kerberos bugs in FC4. Brad, Can you do an strace and see what the processes are doing ? Are other servers (e.g. qmail) using more CPU as well? Or just smbd? Jay, have you observed any similar behavior (increaed CPU usage). cheers, jerry = Alleviating the pain of Windows(tm) --- http://www.samba.org GnuPG Key- http://www.plainjoe.org/gpg_public.asc I never saved anything for the swim back. Ethan Hawk in Gattaca -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.0 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFC5OQTIR7qMdg1EfYRAtwzAKDi/+Bu1P8UosaGTER2951K6PRejgCg259I bEwvLUPc1NJ+9DFUh0y63a4= =Xn+e -END PGP SIGNATURE- -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/listinfo/samba --- End of Original Message --- -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/listinfo/samba
[Samba] High CPU with 3.0.14a in FC4
hi everyone, I've been subscribed to the mailing lists for about 18 months to 2 years but have never had the opportunity to post. One of our clients has a box that is a 3Ghz Pentium 4 running FC1 and 512 MB of memory. An upgrade was performed to FC4 [2 make use of ACL's]. We haven't yet started to implement ACL's [or made any changes to the Samba configuration]. The problem we are experiencing is that the standard daemon processes [SMBD] are using significantly more CPU [processes that were running a 10% are now running at over 40%]. Has anybody seen or heard of this before or is this a FC4 specific problem. The boxes are primarily Windows file sharers but they do run qmail as well. Any help would be greatly appreciated Regards Brad Horrocks -- Secure Office Services ABN 75 196 364 531 19 Burrendong Road COOMBABAH QLD 4216 Ph. +61 7 5537 4955 Fx. +61 7 5537 4966 web: http://www.secureoffice.com.au -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/listinfo/samba
