Re: [PATCH 0/10] mm: Fix various readahead quirks

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On Tue, Jun 25, 2024 at 12:18:50PM +0200, Jan Kara wrote:
> Hello!
> 
> When we were internally testing performance of recent kernels, we have noticed
> quite variable performance of readahead arising from various quirks in
> readahead code. So I went on a cleaning spree there. This is a batch of patches
> resulting out of that. A quick testing in my test VM with the following fio
> job file:
> 
> [global]
> direct=0
> ioengine=sync
> invalidate=1
> blocksize=4k
> size=10g
> readwrite=read
> 
> [reader]
> numjobs=1
> 
> shows that this patch series improves the throughput from variable one in
> 310-340 MB/s range to rather stable one at 350 MB/s. As a side effect these
> cleanups also address the issue noticed by Bruz Zhang [1].
> 

Reviewed-by: Josef Bacik <josef@xxxxxxxxxxxxxx>

Thanks,

Josef




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