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[rhelv6-list] RHEL6.2 XFS brutal performence with lots of files


I've been noticing lots of annoying problems with XFS performance with RHEL6.2 on 64bit. I typically have 20-30 TB file systems with data structured in directories based on day of year, product type, for example,


Doing operations like tar or rm over these directories bring the system to a grinding halt. Load average goes vertical and eventually the power button needs to be pressed in many cases :( A hack workaround is to break apart the task into smaller chunks and let the system breath in between operations...

Anyway, I read Ric Wheeler's "Billion Files" with great interest


It appears there are 'known issues' with XFS and RHEL6.1. It does not appear these issues were addressed in RHEL 6.2?

Does anybody know if these issues were addressed in the upcoming RHEL 6.3? My impression is that upstream fixes for this only recently (last 6 months?) appeared in the mainline kernel.

Perhaps I am missing some tuning that could be done to help with this?


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