[Ocfs2-users] slow file creation

[Sunil Mushran]

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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