On Mon, 2006-01-02 at 22:04 +0100, Len Kranendonk wrote: > > How are you measuring this? > > top, or ps aux and watch the RSS column (the real memory (resident set) > size of the process (in 1024 byte units)).
Okay, my other guess then is that your parent process really uses this much memory at startup but FreeBSD doesn't count it as RES because of copy-on-write. Then, when things are not as shared later on because of writes to memory in the child processes, you see the real size. That wouldn't really make much sense though, since I'd expect the parent process to show the full original size. > No, I'm not using Cache::FastMmap. What about one of the apache caching modules that use memory-mapping? Or maybe an SSL module that uses mmap'ed files to share data? - Perrin
