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From: Mike Snitzer <snitzer@redhat.com>
To: Ming Lei <ming.lei@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>,
	linux-block@vger.kernel.org, dm-devel@redhat.com,
	Jeffle Xu <jefflexu@linux.alibaba.com>,
	Christoph Hellwig <hch@lst.de>
Subject: Re: [dm-devel] [PATCH V3 0/3] block/dm: support bio polling
Date: Tue, 1 Mar 2022 16:19:42 -0500	[thread overview]
Message-ID: <Yh6N7msbMBcANFxg@redhat.com> (raw)
In-Reply-To: <Yh1vrWXlaTnEcrNd@T590>

On Mon, Feb 28 2022 at  7:58P -0500,
Ming Lei <ming.lei@redhat.com> wrote:

> On Mon, Feb 28, 2022 at 11:27:44AM -0500, Mike Snitzer wrote:
> > 
> > Hey Ming,
> > 
> > I'd like us to follow-through with adding bio-based polling support.
> > Kind of strange none of us that were sent this V3 ever responded,
> > sorry about that!
> > 
> > Do you have interest in rebasing this patchset (against linux-dm.git's
> > "dm-5.18" branch since there has been quite some churn)?  Or are you
> > OK with me doing the rebase?
> 
> Hi Mike,
> 
> Actually I have one local v5.17 rebase:
> 
> https://github.com/ming1/linux/tree/my_v5.17-dm-io-poll
> 
> Also one for-5.18/block rebase which is done just now:
> 
> https://github.com/ming1/linux/tree/my_v5.18-dm-bio-poll
> 
> In my previous test on v5.17 rebase, the IOPS improvement is a bit small,
> so I didn't post it out. Recently not get time to investigate
> the performance further, so please feel free to work on it.

OK, I've rebased it on dm-5.18.

Can you please share the exact test(s) you were running?  I assume you
were running directly against a request-based device and then
comparing polling perf through dm-linear to the same underlying
request-based device?

Thanks,
Mike

--
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https://listman.redhat.com/mailman/listinfo/dm-devel


WARNING: multiple messages have this Message-ID (diff)
From: Mike Snitzer <snitzer@redhat.com>
To: Ming Lei <ming.lei@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>,
	linux-block@vger.kernel.org,
	Jeffle Xu <jefflexu@linux.alibaba.com>,
	dm-devel@redhat.com, Hannes Reinecke <hare@suse.de>,
	Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH V3 0/3] block/dm: support bio polling
Date: Tue, 1 Mar 2022 16:19:42 -0500	[thread overview]
Message-ID: <Yh6N7msbMBcANFxg@redhat.com> (raw)
In-Reply-To: <Yh1vrWXlaTnEcrNd@T590>

On Mon, Feb 28 2022 at  7:58P -0500,
Ming Lei <ming.lei@redhat.com> wrote:

> On Mon, Feb 28, 2022 at 11:27:44AM -0500, Mike Snitzer wrote:
> > 
> > Hey Ming,
> > 
> > I'd like us to follow-through with adding bio-based polling support.
> > Kind of strange none of us that were sent this V3 ever responded,
> > sorry about that!
> > 
> > Do you have interest in rebasing this patchset (against linux-dm.git's
> > "dm-5.18" branch since there has been quite some churn)?  Or are you
> > OK with me doing the rebase?
> 
> Hi Mike,
> 
> Actually I have one local v5.17 rebase:
> 
> https://github.com/ming1/linux/tree/my_v5.17-dm-io-poll
> 
> Also one for-5.18/block rebase which is done just now:
> 
> https://github.com/ming1/linux/tree/my_v5.18-dm-bio-poll
> 
> In my previous test on v5.17 rebase, the IOPS improvement is a bit small,
> so I didn't post it out. Recently not get time to investigate
> the performance further, so please feel free to work on it.

OK, I've rebased it on dm-5.18.

Can you please share the exact test(s) you were running?  I assume you
were running directly against a request-based device and then
comparing polling perf through dm-linear to the same underlying
request-based device?

Thanks,
Mike


  reply	other threads:[~2022-03-01 21:20 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-23  7:40 [dm-devel] [PATCH V3 0/3] block/dm: support bio polling Ming Lei
2021-06-23  7:40 ` Ming Lei
2021-06-23  7:40 ` [dm-devel] [PATCH V3 1/3] block: add helper of blk_queue_poll Ming Lei
2021-06-23  7:40   ` Ming Lei
2021-06-23  7:40 ` [dm-devel] [PATCH V3 2/3] block: add ->poll_bio to block_device_operations Ming Lei
2021-06-23  7:40   ` Ming Lei
2021-06-23  7:40 ` [dm-devel] [PATCH V3 3/3] dm: support bio polling Ming Lei
2021-06-23  7:40   ` Ming Lei
2022-02-28 16:27 ` [dm-devel] [PATCH V3 0/3] block/dm: " Mike Snitzer
2022-02-28 16:27   ` Mike Snitzer
2022-03-01  0:58   ` [dm-devel] " Ming Lei
2022-03-01  0:58     ` Ming Lei
2022-03-01 21:19     ` Mike Snitzer [this message]
2022-03-01 21:19       ` Mike Snitzer
2022-03-02  0:45       ` [dm-devel] " Ming Lei
2022-03-02  0:45         ` Ming Lei

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