Greetings all,
I may finally have some time to work on some mod_cache issues that have
been nagging me. Mostly performance things. I really want to stop
maintaining my own version here, but to do that mod_cache needs to be
sped up a bit.
I'm setting up a dev environment now, so hopefully I should have
something usable soon. Unfortunately, most patches I have submitted for
mod_cache have basically been ignored.
Are there any general ideas you guys have in where the performance
bottlenecks may be?
A short list I have (mostly mod_disk_cache):
-read_table and read_array seem slower than they should be
-"thundering herd" when a popular object expires
-writing out request headers when not varying
I have submitted patches for some of these in the past, but I will try
to quantify the performance implications of these.
--
Brian Akins
Lead Systems Engineer
CNN Internet Technologies
