----- Igor GaliÄ [mailto:i.galic@xxxxxxxxxxxxxx] wrote: > >----- "john 3 newton" <john.3.newton@xxxxxx> wrote: > >> Solaris 10 >> Apache version: 2.2.11 & 2.2.17 (32 &64 bit) >> >> We recently moved our production webserver from a sparc platform >> (T2000) to an x86/64 platform (x2270-m2) and we have noticed an >> erratic response time for downloads of files using SSL. This seems to >> randomly occur with any files about 10k or larger. For instance, I >> have been using a test file of 140K, and it can take 0.5 or 4.8 >> seconds to transfer. When using the sparc platform, it always only >> takes 0.5 seconds. > >Are you using Solaris' crypto acceleration? (I don't mean the T2's >chip, I mean the software) -- if so, disable it, deregister it, >uninstall it and purge it because it will kill performance. I don't know. I haven't heard of this before, but I'll research. It is entirely possible as the T2000's were built by my predecessor years ago, and I used a different methodology for installation on these m2270's. > >> I noticed this as we are using an external monitoring system >> (Gomez.com) and we started seeing these wildly varying times for >> transaction processing. >> >> I have tried a cut down SSL setup for testing, and examined every > >Does that mean you tested the same setup in plain-text? If you mean http vs. https, yes, I did test it with a plain non-encrypted http setup, and I don't see the performance issue at all. It is solely with SSL in the mix. > >If you see the same issues on the boxes on plain-text, then >consider disabling things sendfile() if you're on ZFS: > >http://www.stdlib.net/~colmmacc/2006/03/23/niagara-vs-ftpheanetie-showdown/ > >> directive and option, and I can't make sense of the problem. I'm using >> the following configuration string, and I'd be happy to include the >> configuration setups.. >> >> ./configure --prefix=/app/www/apache-2.2.11_32 --with-mpm=worker >> --enable-ssl --with-apr=/app/apr-1.3.3-32 >> --with-apr-util=/app/apr-1.3.3-32 --enable-mods-shared="headers >> expires deflate" >> >> Server version: Apache/2.2.17 (Unix) >> Server built: Jan 5 2011 15:56:01 >> Server's Module Magic Number: 20051115:25 >> Server loaded: APR 1.3.3, APR-Util 1.3.4 >> Compiled using: APR 1.3.3, APR-Util 1.3.4 >> Architecture: 32-bit > >I know this is silly, but have you considered going 64 >to see if there's a difference? Not silly at all. I did a 64 bit compile and test, and got the same results. That was one of my first thoughts. > >> Server MPM: Worker >> threaded: yes (fixed thread count) >> forked: yes (variable process count) >> Server compiled with.... >> -D APACHE_MPM_DIR="server/mpm/worker" >> -D APR_HAS_SENDFILE >> -D APR_HAS_MMAP >> -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled) >> -D APR_USE_FCNTL_SERIALIZE >> -D APR_USE_PTHREAD_SERIALIZE >> -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT >> -D APR_HAS_OTHER_CHILD >> -D AP_HAVE_RELIABLE_PIPED_LOGS >> -D DYNAMIC_MODULE_LIMIT=128 >> -D HTTPD_ROOT="/app/www/apache-2.2.17_32" >> -D SUEXEC_BIN="/app/www/apache-2.2.17_32/bin/suexec" >> -D DEFAULT_SCOREBOARD="logs/apache_runtime_status" >> -D DEFAULT_ERRORLOG="logs/error_log" >> -D AP_TYPES_CONFIG_FILE="conf/mime.types" >> -D SERVER_CONFIG_FILE="conf/httpd.conf" >> >> I can move the bare-bones configuration between the sparc and x86 >> platforms and get normal response on the sparc, and irregular on the >> x86. >> >> Any help would be appreciated. >> >> John Newton > >i > >-- >Igor GaliÄ Thanks for the help. John Newton
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