re: contention for memcache Well, we don't have a very standard kind of web app. The data show that running 8 memcaches is better for us than 1:
http://www.emptech.com/mc/image003.png The graph shows the avg time to process the complete request. The X axis shows concurrent streams of requests being sent to apache. Each request makes several to small tens of memcache gets, and 1 multi-get. My next set of tests will compare 8 vs 16 memcaches and scale up the number of concurrent requests. re: localhost:12211 vs unix domain sockets Um, yes, I can test tcp sockets vs. unix domain sockets if there is a good reason to. My belief is that unix domain sockets are the fastest in general; is there something specific to memcache that suggests otherwise? re: multi-threaded memcache I read about multi-threaded mc with interest. In general, I'm leery of threading, but I would be willing to look further into it with a little encouragement. :-) We are running LAMP on linux 2.6 64-bit where the p is perl 5.8.5. Is there a consensus view that memcache threading works well on that platform? TIA, -- jeff On 6/12/08 12:31 AM, "dormando" <[EMAIL PROTECTED]> wrote: > contention on memcached, over localhost? That's a little bizarre. > > Can you test over localhost:11211 instead of a unix domain socket, and > see if there's any performance difference? Multithreaded memcached > maybe? It's pretty hard to actually contend on memcached.
