Re: iomap infrastructure and multipage writes V5

xfs

Re: iomap infrastructure and multipage writes V5

To:	Dave Chinner <david@xxxxxxxxxxxxx>
Subject:	Re: iomap infrastructure and multipage writes V5
From:	Christoph Hellwig <hch@xxxxxx>
Date:	Tue, 28 Jun 2016 15:38:11 +0200
Cc:	Christoph Hellwig <hch@xxxxxx>, xfs@xxxxxxxxxxx, rpeterso@xxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx
Delivered-to:	xfs@xxxxxxxxxxx
In-reply-to:	<20160628132839.GA30892@xxxxxx>
References:	<1464792297-13185-1-git-send-email-hch@xxxxxx> <20160628002649.GI12670@dastard> <20160628132839.GA30892@xxxxxx>
User-agent:	Mutt/1.5.17 (2007-11-01)

On Tue, Jun 28, 2016 at 03:28:39PM +0200, Christoph Hellwig wrote:
> > generic/224 on my 1p/1GB RAM VM using a 1k lock size filesystem has
> > significantly different behaviour once ENOSPC is hit withi this patchset.
> 
> Works fine on my 1k test setup with 4 CPUs and 2GB RAM.  1 CPU and 1GB
> RAM runs into the OOM killer, although I haven't checked if that was
> the case with the old code as well.  I'll look into this more later
> today or tomorrow.

It was doing fine before my changes - I'm going to investigate what
caused the change in behavior.

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[PATCH 08/14] fs: iomap based fiemap implementation, (continued) [PATCH 08/14] fs: iomap based fiemap implementation, Christoph Hellwig [PATCH 09/14] xfs: use iomap fiemap implementation, Christoph Hellwig [PATCH 10/14] xfs: use iomap infrastructure for DAX zeroing, Christoph Hellwig [PATCH 11/14] xfs: handle 64-bit length in xfs_iozero, Christoph Hellwig [PATCH 12/14] xfs: use xfs_zero_range in xfs_zero_eof, Christoph Hellwig [PATCH 13/14] xfs: split xfs_free_file_space in manageable pieces, Christoph Hellwig [PATCH 14/14] xfs: kill xfs_zero_remaining_bytes, Christoph Hellwig Re: iomap infrastructure and multipage writes V5, Christoph Hellwig Re: iomap infrastructure and multipage writes V5, Dave Chinner Re: iomap infrastructure and multipage writes V5, Christoph Hellwig Re: iomap infrastructure and multipage writes V5, Christoph Hellwig <= Re: iomap infrastructure and multipage writes V5, Christoph Hellwig Re: iomap infrastructure and multipage writes V5, Dave Chinner

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