1. Upgrade to atleast 1.2.4 if not 1.2.5. We fixed a lowmem
issue in 1.2.4 that reduces the fs' memory footprint.
2. strace -tt -T the process. That will narrow down the problem
area.
Matthew Flusche wrote:
Hi all,
I'm troubleshooting an ocfs2 performance problem where creating files
in a directory containing ~180k files is taking significant time to
complete. Sometimes creating an empty file will take >100 seconds to
complete. This is a three node cluster. I'm currently running OCFS2
1.2.3-1. Are there any changes in a recent version that may address
this issue? What should I look at to troubleshoot? The systems
overall utilization is low.
(All 3 systems are identical)
RHEL 4 update 4 - 2.6.9-42.0.2.ELhugemem (32-bit)
ocfs2-2.6.9-42.0.2.ELhugemem-1.2.3-1
ocfs2-tools-1.2.2-1
HP Proliant DL385 - 2 X 2.4 GHz AMD Opteron Processor 250
16GB RAM
2 X emulex LP10000 HBAs
Powerpath 4.5.1
shared disks are from an EMC clariion CX500
Thanks,
Matt
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