Req #27814 [Com]: Multiple small packets send for HTTP request
Edit report at https://bugs.php.net/bug.php?id=27814&edit=1 ID: 27814 Comment by: olivier dot parmentier at cellfishmedia dot fr Reported by:Olaf at XCC dot TMFWeb dot NL Summary:Multiple small packets send for HTTP request Status: Assigned Type: Feature/Change Request Package:Streams related Operating System: * PHP Version:* Assigned To:wez Block user comment: N Private report: N New Comment: using 5.2.17 and 5.3.3 if needed I can test on newer version but it doesn't seems anything was done about it. the problem is still there. it's a HUGE probleme when using IPSec VPN as the overhead can be tremendous with lots of small packets. It's not a theoretical problem. for me It's a real one that affect the business with our partner. anything new on the subject ? Anything I can do ? Previous Comments: [2008-03-07 00:01:17] a dot u dot savchuk at gmail dot com Problem still exists. tcpdump shows during execution test example that 'GET ...' and 'Host ...' are sent by multiple packets: - 000110 IP (tos 0x0, ttl 64, id 62602, offset 0, flags [DF], proto 6, length: 68) x.x.x.x.42720 > 69.147.83.197.80: P [tcp sum ok] 1:17(16) ack 1 win 1460 E..D..@.@... . FE.SP.,.D... .85.GET / HTTP/1.0 101682 IP (tos 0x0, ttl 57, id 8438, offset 0, flags [DF], proto 6, length: 52) 69.147.83.197.80 > x.x.x.x.42720: . [tcp sum ok] 1:1(0) ack 17 win 33296 E..4 .@.9.sTE.S. . F.P...,.D,z. ...%.85. 24 IP (tos 0x0, ttl 64, id 62603, offset 0, flags [DF], proto 6, length: 69) x.x.x.x.42720 > 69.147.83.197.80: P [tcp sum ok] 17:34(17) ack 1 win 1460 E..E..@.@... . FE.SP.,.D... .85!...%Host: php.net 013718 IP (tos 0x0, ttl 57, id 61609, offset 0, flags [DF], proto 6, length: 1500) 69.147.83.197.80 > x.x.x.x.42720: . 1: 1449(1448) ack 34 win 33304 E.@.9...E.S. . F.P...,.D,_. ...1.85!HTTP/1.1 200 OK D ate: Fri, 07 - [2005-07-29 18:21:26] sni...@php.net Still considering after over a year or is this fixed by now? (should this actually be a feature request?) [2004-04-19 06:38:09] poll...@php.net It's too late for the 5.0 branch (which is in final RC stage), but it's under consideration for the 5.1 branch. [2004-04-19 03:02:02] OvdSpek at LIACS dot NL Will a buffer be added? [2004-03-31 17:55:02] w...@php.net You're correct; there is no write buffering for the http request. The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=27814 -- Edit this bug report at https://bugs.php.net/bug.php?id=27814&edit=1
#27814 [Com]: Multiple small packets send for HTTP request
ID: 27814 Comment by: a dot u dot savchuk at gmail dot com Reported By: Olaf at XCC dot TMFWeb dot NL Status: Assigned Bug Type: Feature/Change Request Operating System: * PHP Version: 5.1* Assigned To: wez New Comment: Problem still exists. tcpdump shows during execution test example that 'GET ...' and 'Host ...' are sent by multiple packets: - 000110 IP (tos 0x0, ttl 64, id 62602, offset 0, flags [DF], proto 6, length: 68) x.x.x.x.42720 > 69.147.83.197.80: P [tcp sum ok] 1:17(16) ack 1 win 1460 [EMAIL PROTECTED]@... . FE.SP.,.D... .85.GET / HTTP/1.0 101682 IP (tos 0x0, ttl 57, id 8438, offset 0, flags [DF], proto 6, length: 52) 69.147.83.197.80 > x.x.x.x.42720: . [tcp sum ok] 1:1(0) ack 17 win 33296 E..4 [EMAIL PROTECTED] . F.P...,.D,z. ...%.85. 24 IP (tos 0x0, ttl 64, id 62603, offset 0, flags [DF], proto 6, length: 69) x.x.x.x.42720 > 69.147.83.197.80: P [tcp sum ok] 17:34(17) ack 1 win 1460 [EMAIL PROTECTED]@... . FE.SP.,.D... .85!...%Host: php.net 013718 IP (tos 0x0, ttl 57, id 61609, offset 0, flags [DF], proto 6, length: 1500) 69.147.83.197.80 > x.x.x.x.42720: . 1: 1449(1448) ack 34 win 33304 [EMAIL PROTECTED] . F.P...,.D,_. ...1.85!HTTP/1.1 200 OK D ate: Fri, 07 - Previous Comments: [2005-07-29 18:21:26] [EMAIL PROTECTED] Still considering after over a year or is this fixed by now? (should this actually be a feature request?) [2004-04-19 06:38:09] [EMAIL PROTECTED] It's too late for the 5.0 branch (which is in final RC stage), but it's under consideration for the 5.1 branch. [2004-04-19 03:02:02] OvdSpek at LIACS dot NL Will a buffer be added? [2004-03-31 17:55:02] [EMAIL PROTECTED] You're correct; there is no write buffering for the http request. [2004-03-31 14:48:37] Olaf at XCC dot TMFWeb dot NL Description: This code sends two packets, one of 16 bytes and one of 17 bytes. I guess this is caused by multiple calls to php_stream_write in http_fopen_wrapper.c: php_stream_url_wrap_http_ex Preparing the entire request in one buffer and sending it via one call should produce less packets (and be faster). Reproduce code: --- http://php.net/";)); ?> Expected result: One packet of 33 bytes. Actual result: -- Two packets. -- Edit this bug report at http://bugs.php.net/?id=27814&edit=1
#27814 [Com]: Multiple small packets send for HTTP request
ID: 27814 Comment by: OvdSpek at LIACS dot NL Reported By: Olaf at XCC dot TMFWeb dot NL Status: Assigned Bug Type: HTTP related Operating System: * PHP Version: 5CVS-2004-04-07 Assigned To: wez New Comment: Will a buffer be added? Previous Comments: [2004-03-31 17:55:02] [EMAIL PROTECTED] You're correct; there is no write buffering for the http request. [2004-03-31 14:48:37] Olaf at XCC dot TMFWeb dot NL Description: This code sends two packets, one of 16 bytes and one of 17 bytes. I guess this is caused by multiple calls to php_stream_write in http_fopen_wrapper.c: php_stream_url_wrap_http_ex Preparing the entire request in one buffer and sending it via one call should produce less packets (and be faster). Reproduce code: --- http://php.net/";)); ?> Expected result: One packet of 33 bytes. Actual result: -- Two packets. -- Edit this bug report at http://bugs.php.net/?id=27814&edit=1
