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Posted to bugs@httpd.apache.org by bu...@apache.org on 2018/11/13 11:25:37 UTC

[Bug 62907] high virtual address space per httpd process

https://bz.apache.org/bugzilla/show_bug.cgi?id=62907

Stefan Eissing <st...@eissing.org> changed:

           What    |Removed                     |Added
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             Status|NEW                         |NEEDINFO

--- Comment #1 from Stefan Eissing <st...@eissing.org> ---
Use "ulimit -s" to see what the default stack size per thread is on your
system. On my ubuntu 64bit it is 8192. So every thread, regardless of what else
is allocated for it, will have a 8MB stack.

With 50 threads per process and 3 worker children, that would sum up to 1.2 GB
on virtual stack space alone.

See also:
https://unix.stackexchange.com/questions/127602/default-stack-size-for-pthreads#280865

Does this match your observations?

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