Re: [RFC PATCH 0/1] Large folios in block buffered IO path

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On Thu, Nov 28, 2024 at 09:31:50AM +0530, Bharata B Rao wrote:
> However a point of concern is that FIO bandwidth comes down drastically
> after the change.
> 
> 		default				inode_lock-fix
> rw=30%
> Instance 1	r=55.7GiB/s,w=23.9GiB/s		r=9616MiB/s,w=4121MiB/s
> Instance 2	r=38.5GiB/s,w=16.5GiB/s		r=8482MiB/s,w=3635MiB/s
> Instance 3	r=37.5GiB/s,w=16.1GiB/s		r=8609MiB/s,w=3690MiB/s
> Instance 4	r=37.4GiB/s,w=16.0GiB/s		r=8486MiB/s,w=3637MiB/s

Something this dramatic usually only happens when you enable a debugging
option.  Can you recheck that you're running both A and B with the same
debugging options both compiled in, and enabled?




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