I'm trying to use the apache mod_memcached_cache module with memcached and running into performance problems.
I'm running httpd 2.2.11 worker mpm, apr 1.3.3, apr-util 1.3.4, libevent 1.1a, apr_memcache-0.7.0, mod_memcached_cache 0.1.0, and memcached 1.2.6. All are compiled from source for x86_64, centos 5 except for libevent which is a centos rpm. Memcached is compiled with --enable-64bit --enable-threads, and run with -t 10 -d -m 64 -c 1024. mod_memcached_cache is configured as: CacheEnable memcached / MemcachedCacheServer localhost:11211 MemcachedMaxServers 10 MemcachedMinConnections 10 MemcachedSMaxConnections 100 MemcachedMaxConnections 100 MemcachedConnectionTTL 10 MemcachedCacheMinFileSize 1 MemcachedCacheMaxFileSize 1048576 using ab to test.. an 8K static file with 50 concurrent connections gives me 145 reqs/s and i get frequent events in apache of: [Tue Feb 10 17:16:21 2009] [error] (70015)Could not find specified socket in poll list.: create_entity: unable to create: MYURL The same file with apache's mod_mem_cache module gives me 2000 reqs/s. with mod_disk_cache, 1500 reqs/s Any help is appreciated, -Tony
