From: JeffleXu <jefflexu@linux.alibaba.com>
To: Mike Snitzer <snitzer@redhat.com>
Cc: axboe@kernel.dk, hch@lst.de, ming.lei@redhat.com,
linux-block@vger.kernel.org, dm-devel@redhat.com,
io-uring@vger.kernel.org, joseph.qi@linux.alibaba.com,
caspar@linux.alibaba.com, Mikulas Patocka <mpatocka@redhat.com>
Subject: Re: [PATCH v4 00/12] dm: support IO polling
Date: Wed, 24 Feb 2021 09:44:49 +0800 [thread overview]
Message-ID: <5c4e6bab-63be-f390-55a8-3f700eebf98b@linux.alibaba.com> (raw)
In-Reply-To: <20210223205434.GB25684@redhat.com>
On 2/24/21 4:54 AM, Mike Snitzer wrote:
> On Mon, Feb 22 2021 at 10:55pm -0500,
> JeffleXu <jefflexu@linux.alibaba.com> wrote:
>
>>
>>
>> On 2/20/21 7:06 PM, Jeffle Xu wrote:
>>> [Changes since v3]
>>> - newly add patch 7 and patch 11, as a new optimization improving
>>> performance of multiple polling processes. Now performance of multiple
>>> polling processes can be as scalable as single polling process (~30%).
>>> Refer to the following [Performance] chapter for more details.
>>>
>>
>> Hi Mike, would please evaluate this new version patch set? I think this
>> mechanism is near maturity, since multi-thread performance is as
>> scalable as single-thread (~30%) now.
>
> OK, can do. But first I think you need to repost with a v5 that
> addresses Mikulas' v3 feedback:
>
> https://listman.redhat.com/archives/dm-devel/2021-February/msg00254.html
> https://listman.redhat.com/archives/dm-devel/2021-February/msg00255.html
>
Will do. Besides I will also rebase to 5.12 in the next version.
--
Thanks,
Jeffle
prev parent reply other threads:[~2021-02-24 1:45 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-20 11:06 [PATCH v4 00/12] dm: support IO polling Jeffle Xu
2021-02-20 11:06 ` [PATCH v4 01/12] block: move definition of blk_qc_t to types.h Jeffle Xu
2021-02-20 11:06 ` [PATCH v4 02/12] block: add queue_to_disk() to get gendisk from request_queue Jeffle Xu
2021-02-20 11:06 ` [PATCH v4 03/12] block: add poll method to support bio-based IO polling Jeffle Xu
2021-02-20 11:06 ` [PATCH v4 04/12] block: add poll_capable " Jeffle Xu
2021-02-20 11:06 ` [PATCH v4 05/12] blk-mq: extract one helper function polling hw queue Jeffle Xu
2021-02-20 11:06 ` [PATCH v4 06/12] blk-mq: add iterator for polling hw queues Jeffle Xu
2021-02-20 11:06 ` [PATCH v4 07/12] blk-mq: add one helper function getting hw queue Jeffle Xu
2021-02-20 11:06 ` [PATCH v4 08/12] dm: always return BLK_QC_T_NONE for bio-based device Jeffle Xu
2021-02-20 11:06 ` [PATCH v4 09/12] nvme/pci: don't wait for locked polling queue Jeffle Xu
2021-02-20 11:06 ` [PATCH v4 10/12] block: fastpath for bio-based polling Jeffle Xu
2021-02-20 11:06 ` [PATCH v4 11/12] block: sub-fastpath " Jeffle Xu
2021-02-20 11:06 ` [PATCH v4 12/12] dm: support IO polling for bio-based dm device Jeffle Xu
2021-02-23 3:55 ` [PATCH v4 00/12] dm: support IO polling JeffleXu
2021-02-23 20:54 ` Mike Snitzer
2021-02-24 1:44 ` JeffleXu [this message]
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