Re: [PHP] how to check for bandwidth limitations when uploading files?
OS? Robert P. J. Day schrieb: probably not really a PHP question but i'll take a chance, anyway. i want to examine the network throughput i can get when continually uploading files from a PHP script via a POST request using the HTTP_Request2 class. i have a client-side script that simply takes files, creates a short POST request, and submits it to a server-side PHP script that takes the uploaded file and saves it. no big deal. as a test, i created a random 5M file, then looped 100 times submitting the same file, and timed it. while the system and user time was only a few seconds total, real (clock on the wall) time was 2.5 minutes. this suggests that the bottleneck is simply network transfer speed. while i'm doing these uploads, is there a way to monitor network throughput? if this is truly the bottleneck, the only real solution will be to pay a premium for faster network access, i suppose. but i'd just like to be able to produce some numbers or evidence that that's the actual problem. thoughts? rday -- Sport Import GmbH - Amtsgericht Oldenburg - Tel: +49-4405-9280-63 Industriestrasse 39 - HRB 1202900- 26188 Edewecht - GF: Michael Müllmann -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] how to check for bandwidth limitations when uploading files?
-Original Message- From: Robert P. J. Day [mailto:rpj...@crashcourse.ca] Sent: Wednesday, May 05, 2010 3:52 AM To: php-general@lists.php.net Subject: [PHP] how to check for bandwidth limitations when uploading files? probably not really a PHP question but i'll take a chance, anyway. i want to examine the network throughput i can get when continually uploading files from a PHP script via a POST request using the HTTP_Request2 class. i have a client-side script that simply takes files, creates a short POST request, and submits it to a server-side PHP script that takes the uploaded file and saves it. no big deal. as a test, i created a random 5M file, then looped 100 times submitting the same file, and timed it. while the system and user time was only a few seconds total, real (clock on the wall) time was 2.5 minutes. this suggests that the bottleneck is simply network transfer speed. while i'm doing these uploads, is there a way to monitor network throughput? if this is truly the bottleneck, the only real solution will be to pay a premium for faster network access, i suppose. but i'd just like to be able to produce some numbers or evidence that that's the actual problem. thoughts? rday IIRC, if you're on *BSD and have PF running, you can get the bandwidth of each individual connection via pftop (?). On Windows, there are several tools that will give similar results. Don't know about Linux. OTOH, maybe your script isn't timed correctly? Is the tested loop done on the localhost or from another remote host establishing the connection via the internet? FYI, if you're hosting it yourself and have async connection like DSL or cable, the upload to your server is the download connection speed which should be faster than your upload (from the server) to the clients. And a 5MB file shouldn't take long provided that your server hasn't reached its resources limits and the internet pipe isn't consumed by other services or systems on the LAN. Regards, Tommy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] how to check for bandwidth limitations when uploading files?
Quoting Jochen Schultz jschu...@sportimport.de: OS? Robert P. J. Day schrieb: probably not really a PHP question but i'll take a chance, anyway. i want to examine the network throughput i can get when continually uploading files from a PHP script via a POST request using the HTTP_Request2 class. i have a client-side script that simply takes files, creates a short POST request, and submits it to a server-side PHP script that takes the uploaded file and saves it. no big deal. as a test, i created a random 5M file, then looped 100 times submitting the same file, and timed it. while the system and user time was only a few seconds total, real (clock on the wall) time was 2.5 minutes. this suggests that the bottleneck is simply network transfer speed. while i'm doing these uploads, is there a way to monitor network throughput? if this is truly the bottleneck, the only real solution will be to pay a premium for faster network access, i suppose. but i'd just like to be able to produce some numbers or evidence that that's the actual problem. thoughts? whoops, sorry, CentOS 5.4. rday -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] how to check for bandwidth limitations when uploading files?
At 6:52 AM -0400 5/5/10, Robert P. J. Day wrote: probably not really a PHP question but i'll take a chance, anyway. i want to examine the network throughput i can get when continually uploading files from a PHP script via a POST request using the HTTP_Request2 class. i have a client-side script that simply takes files, creates a short POST request, and submits it to a server-side PHP script that takes the uploaded file and saves it. no big deal. as a test, i created a random 5M file, then looped 100 times submitting the same file, and timed it. while the system and user time was only a few seconds total, real (clock on the wall) time was 2.5 minutes. this suggests that the bottleneck is simply network transfer speed. while i'm doing these uploads, is there a way to monitor network throughput? if this is truly the bottleneck, the only real solution will be to pay a premium for faster network access, i suppose. but i'd just like to be able to produce some numbers or evidence that that's the actual problem. thoughts? rday You might want to test your connection, such as: http://www.speakeasy.net/speedtest/ Cheers, tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] how to check for bandwidth limitations when uploading files?
Robert P. J. Day wrote: probably not really a PHP question but i'll take a chance, anyway. i want to examine the network throughput i can get when continually uploading files from a PHP script via a POST request using the HTTP_Request2 class. i have a client-side script that simply takes files, creates a short POST request, and submits it to a server-side PHP script that takes the uploaded file and saves it. no big deal. as a test, i created a random 5M file, then looped 100 times submitting the same file, and timed it. while the system and user time was only a few seconds total, real (clock on the wall) time was 2.5 minutes. this suggests that the bottleneck is simply network transfer speed. while i'm doing these uploads, is there a way to monitor network throughput? if this is truly the bottleneck, the only real solution will be to pay a premium for faster network access, i suppose. but i'd just like to be able to produce some numbers or evidence that that's the actual problem. thoughts? rday What web server are you using? Is it Apache, lighttpd, php daemon, etc? If it is anything but directly talking to a php daemon, you must take into consideration that the parent web server does not hand off processing to PHP until it has received the entire file. At this point is when your timer script starts working. So, what is receiving the file? -- Jim Lucas Some men are born to greatness, some achieve greatness, and some have greatness thrust upon them. Twelfth Night, Act II, Scene V by William Shakespeare -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] how to check for bandwidth limitations when uploading files?
Jim Lucas wrote: Robert P. J. Day wrote: probably not really a PHP question but i'll take a chance, anyway. i want to examine the network throughput i can get when continually uploading files from a PHP script via a POST request using the HTTP_Request2 class. i have a client-side script that simply takes files, creates a short POST request, and submits it to a server-side PHP script that takes the uploaded file and saves it. no big deal. as a test, i created a random 5M file, then looped 100 times submitting the same file, and timed it. while the system and user time was only a few seconds total, real (clock on the wall) time was 2.5 minutes. this suggests that the bottleneck is simply network transfer speed. while i'm doing these uploads, is there a way to monitor network throughput? if this is truly the bottleneck, the only real solution will be to pay a premium for faster network access, i suppose. but i'd just like to be able to produce some numbers or evidence that that's the actual problem. thoughts? rday What web server are you using? Is it Apache, lighttpd, php daemon, etc? If it is anything but directly talking to a php daemon, you must take into consideration that the parent web server does not hand off processing to PHP until it has received the entire file. At this point is when your timer script starts working. So, what is receiving the file? I'd call the script via ab [1] from localhost, the computer you're testing and then another server with a good connection - that way you'll get solid numbers and be able to pinpoint the bottleneck in a snap. [1] http://httpd.apache.org/docs/2.0/programs/ab.html Best, Nathan -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
