I found that turning KeepAlive On makes a huge difference to SSL performance (or performance in general). On Sat, Jan 22, 2011 at 11:53 AM, <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. > > 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 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 > 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 > > > > --------------------------------------------------------------------- > The official User-To-User support forum of the Apache HTTP Server Project. > See <URL:http://httpd.apache.org/userslist.html> for more info. > To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx > " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx > For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx > > --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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