Fast Memory Pool Allocators: Boost, Nginx and Tempesta FW

Another interesting implementation that is written by an apache http server, APR, and subversion developer is pocore:

https://github.com/gstein/pocore/blob/master/src/memory.c https://github.com/gstein/pocore/blob/wiki/MemoryManagement....

It's design is heavily influenced by real world experiences -- as this post even changed its benchmarks to reflect that in an HTTP server, a request uses maybe 100 small chunks per request, you can make different optimization choices.

Pools are great. They work really well with servers of all kinds. Even better are pool allocators that support subpools, and adding arbitrary objects that can be closed/deleted with the pool (like files). Eons ago I wrote a nice little C pool allocator: http://git.annexia.org/?p=c2lib.git;a=blob;f=pool.h;h=f8ed4c...

Somewhat related I tried to compile nginx with --with-ld-opt="-ljemalloc" to make it use jemalloc for more performance and it did not really like that, threw segfaults at random during runtime. Don't understand enough to know why.