Bart, This doesn't look like a leak in the "can't free memory because there isn't a reference to it" sense. However, there is definitely memory usage growth, although, I haven't been able to replicate usage with quite as steep a curve as your graph. That graph was based on system memory usage? Would you mind running the same test and collecting the output from /proc/<PID>/statm at some interval while the test is running where PID is the server process' PID? Heap profiling so far makes it look like the increased usage is coming from libraries not due to memory allocations within OrangeFS but no definitive answer yet.
Has anyone seen this behavior in the past? Thanks, Michael On Mon, Jun 27, 2011 at 1:04 PM, Becky Ligon <[email protected]> wrote: > I will put this issue in our track system and begin working on it. > > Becky > -- > Becky Ligon > HPC Admin Staff > PVFS/OrangeFS Developer > Clemson University/Omnibond.com OrangeFS Support > 864-650-4065 > > > After some recent testing, it looks like there is a server-side memory > > leak > > in the latest OrangeFS release. We have seen servers whose memory climbs > > without bound while the server daemon is running. > > > > I have a test case that is fairly simple. There is one RHEL5.5 64bit > > server > > and a single matching client both built from the 2.8.4 release tarball; > > the > > server config is attached. Create a simple file - mine is described below > > - > > and run the attached bash script (create-delete-loop.bash) against it. > > > > Memory is continuously leaked as seen by the chart I also attached. I > > tested > > this with the server's TroveMethod set to directio and alt-aio, and it > > appears to leak memory at the same rate. > > > > The file my test is using was created by this command: > > for i in `seq 1 65536`; do echo -n "b" >> b.txt ; done > > > > Bart. > > _______________________________________________ > > Pvfs2-developers mailing list > > [email protected] > > http://www.beowulf-underground.org/mailman/listinfo/pvfs2-developers > > > > > _______________________________________________ > Pvfs2-developers mailing list > [email protected] > http://www.beowulf-underground.org/mailman/listinfo/pvfs2-developers >
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