Re: [PATCH 2/2] xfs: convert m_active_trans counter to per-cpu

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On Tue, May 12, 2020 at 12:59:49PM +1000, Dave Chinner wrote:
> Concurrent rm of same 50 million inodes:
> 
> 		unpatched	patched
> machine A:	8m30s		3m09s
> machine B:	4m02s		4m51s

This actually is a significant slow down on machine B, which
might be the more common one.  Can you find out how that happens
and if we can mitigate it?



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