Re: [PATCH] iomap: allow iomap using the per-cpu bio cache

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To: Fengnan Chang <changfengnan@xxxxxxxxxxxxx>
Subject: Re: [PATCH] iomap: allow iomap using the per-cpu bio cache
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Tue, 26 Aug 2025 06:15:27 -0700
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>, Ritesh Harjani <ritesh.list@xxxxxxxxx>, Matthew Wilcox <willy@xxxxxxxxxxxxx>, "Darrick J. Wong" <djwong@xxxxxxxxxx>, brauner@xxxxxxxxxx, linux-xfs@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, Jens Axboe <axboe@xxxxxxxxx>, linux-block@xxxxxxxxxxxxxxx
In-reply-to: <CAPFOzZuH=Mb2D_sNTZrnbcx0SYKcQOqMydk373_eTLc19-H+cQ@mail.gmail.com>
References: <20250822150550.GP7942@frogsfrogsfrogs> <aKiP966iRv5gEBwm@casper.infradead.org> <877byv9w6z.fsf@gmail.com> <aKif_644529sRXhN@casper.infradead.org> <874ityad1d.fsf@gmail.com> <CAPFOzZufTPCT_56-7LCc6oGHYiaPixix30yFNEsiFfN1s9ySMQ@mail.gmail.com> <aKwq_QoiEvtK89vY@infradead.org> <CAPFOzZvBvHWHUwNLnH+Ss90OMdu91oZsSD0D7_ncjVh0pF29rQ@mail.gmail.com> <aKw_XSEEFVG4n79_@infradead.org> <CAPFOzZuH=Mb2D_sNTZrnbcx0SYKcQOqMydk373_eTLc19-H+cQ@mail.gmail.com>

On Tue, Aug 26, 2025 at 05:46:03PM +0800, Fengnan Chang wrote:
> > Interesting.  This is why the not yet merged ext4 iomap patches I guess?
> > Do you see similar numbers with XFS?
> Yes, similar numbers with XFS.

Can you add the numbers to the next submission of the patch?

References:
- Re: [PATCH] iomap: allow iomap using the per-cpu bio cache
  - From: Matthew Wilcox
- Re: [PATCH] iomap: allow iomap using the per-cpu bio cache
  - From: IBM
- Re: [PATCH] iomap: allow iomap using the per-cpu bio cache
  - From: Matthew Wilcox
- Re: [PATCH] iomap: allow iomap using the per-cpu bio cache
  - From: IBM
- Re: [PATCH] iomap: allow iomap using the per-cpu bio cache
  - From: Fengnan Chang
- Re: [PATCH] iomap: allow iomap using the per-cpu bio cache
  - From: Christoph Hellwig
- Re: [PATCH] iomap: allow iomap using the per-cpu bio cache
  - From: Fengnan Chang
- Re: [PATCH] iomap: allow iomap using the per-cpu bio cache
  - From: Christoph Hellwig
- Re: [PATCH] iomap: allow iomap using the per-cpu bio cache
  - From: Fengnan Chang

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