On Oct 18, 2008, at 3:04 PM, Rainer Jung wrote:
Ruediger Pluem schrieb:
On 10/18/2008 01:25 AM, Paul Querna wrote:
Looking at a problem that seems easy to re-produce using un-patched
trunk, 2.2.10 and 2.0.63.
Using a graceful restart causes higher memory usage in the parent,
which
is then passed on to the 'new' children processes.
And, at least over here, httpd consistently grows in RSS, without
any
obvious cause.
Seems reproducible on Ubuntu and Darwin, using 2.2.10, 2.0.63 and
trunk.
Any ideas?
Two quick thoughts:
1. Memory fragmentation in the allocator lists (we had this
discussion either here
or on [EMAIL PROTECTED] a short time ago).
2. At some locations we use a global pool (process->pool) to
allocate memory, e.g. mod_ssl
and when setting up the listeners. I haven't checked so far if
this global pool usage is
justified.
Using my production configurations on Solaris with 2.2.10 worker I can
only reproduce a leak during graceful restart when loading mod_ssl.
The
memory size does not always increase though, after a couple of
restarts
it decreases again, but not back to the previous minimum so over all
there is a small leak related to restarts.
This is weird... I can recreate this under OS X but not under Sol10,
and only with mod_ssl in the mix as well. But at least it appears that
mod_ssl is the main culprit.
