how small can I make the thread stack size?
cosimo at streppone.it
Wed Jul 28 10:29:42 CEST 2010
On Wed, 28 Jul 2010 08:02:50 +0200, Chris Hecker <checker at d6.com> wrote:
> [stack size] I've seen people talking about 256kb, but then the docs are
> pretty sketchy on whether it's a good idea to change it at all,
> Any advice?
We're running several varnish instances.
All of them x86-64 though, so YMMV.
For the busiest machines, stack size has been set to 256kb, by putting
'ulimit -s 256' in the init script.
IIRC, we started doing this because we saw increases in the
We saw that varnishd couldn't create new threads,
even if the hard limit (thread_pool_max) hadn't been reached yet.
These particular instances are constantly running 7k threads,
occasionally going to 8-9k. With 24 Gb of RAM.
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