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From: Bart Van Assche <Bart.VanAssche@wdc.com>
To: "dm-devel@redhat.com" <dm-devel@redhat.com>,
	"axboe@fb.com" <axboe@fb.com>,
	"ming.lei@redhat.com" <ming.lei@redhat.com>,
	"snitzer@redhat.com" <snitzer@redhat.com>
Cc: Bart Van Assche <Bart.VanAssche@wdc.com>,
	"hch@infradead.org" <hch@infradead.org>,
	"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
	"loberman@redhat.com" <loberman@redhat.com>
Subject: Re: [PATCH 5/5] dm-mpath: improve I/O schedule
Date: Fri, 15 Sep 2017 21:06:50 +0000	[thread overview]
Message-ID: <1505509609.2417.20.camel@wdc.com> (raw)
In-Reply-To: <20170915164456.9803-6-ming.lei@redhat.com>

On Sat, 2017-09-16 at 00:44 +0800, Ming Lei wrote:
> 1) lpfc.lpfc_lun_queue_depth=3, so that it is same with .cmd_per_lun

Nobody I know uses such a low queue depth for the lpfc driver. Please also
include performance results for a more realistic queue depth.

Thanks,

Bart.

WARNING: multiple messages have this Message-ID (diff)
From: Bart Van Assche <Bart.VanAssche@wdc.com>
To: "dm-devel@redhat.com" <dm-devel@redhat.com>,
	"axboe@fb.com" <axboe@fb.com>,
	"ming.lei@redhat.com" <ming.lei@redhat.com>,
	"snitzer@redhat.com" <snitzer@redhat.com>
Cc: Bart Van Assche <Bart.VanAssche@wdc.com>,
	"hch@infradead.org" <hch@infradead.org>,
	"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
	"loberman@redhat.com" <loberman@redhat.com>
Subject: Re: [PATCH 5/5] dm-mpath: improve I/O schedule
Date: Fri, 15 Sep 2017 21:06:50 +0000	[thread overview]
Message-ID: <1505509609.2417.20.camel@wdc.com> (raw)
In-Reply-To: <20170915164456.9803-6-ming.lei@redhat.com>

T24gU2F0LCAyMDE3LTA5LTE2IGF0IDAwOjQ0ICswODAwLCBNaW5nIExlaSB3cm90ZToNCj4gMSkg
bHBmYy5scGZjX2x1bl9xdWV1ZV9kZXB0aD0zLCBzbyB0aGF0IGl0IGlzIHNhbWUgd2l0aCAuY21k
X3Blcl9sdW4NCg0KTm9ib2R5IEkga25vdyB1c2VzIHN1Y2ggYSBsb3cgcXVldWUgZGVwdGggZm9y
IHRoZSBscGZjIGRyaXZlci4gUGxlYXNlIGFsc28NCmluY2x1ZGUgcGVyZm9ybWFuY2UgcmVzdWx0
cyBmb3IgYSBtb3JlIHJlYWxpc3RpYyBxdWV1ZSBkZXB0aC4NCg0KVGhhbmtzLA0KDQpCYXJ0Lg==

  parent reply	other threads:[~2017-09-15 21:06 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-15 16:44 [PATCH 0/5] dm-mpath: improve I/O schedule Ming Lei
2017-09-15 16:44 ` Ming Lei
2017-09-15 16:44 ` [PATCH 1/5] block: don't call blk_mq_delay_run_hw_queue() in case of BLK_STS_RESOURCE Ming Lei
2017-09-15 16:44   ` Ming Lei
2017-09-15 17:57   ` Bart Van Assche
2017-09-15 17:57     ` Bart Van Assche
2017-09-15 17:57     ` Bart Van Assche
2017-09-17 12:40     ` Ming Lei
2017-09-17 12:40       ` Ming Lei
2017-09-18 15:18       ` Bart Van Assche
2017-09-18 15:18         ` Bart Van Assche
2017-09-18 15:18         ` Bart Van Assche
2017-09-19  5:43         ` Ming Lei
2017-09-19  5:43           ` Ming Lei
2017-09-19 15:36           ` Bart Van Assche
2017-09-19 15:36             ` Bart Van Assche
2017-09-19 15:36             ` Bart Van Assche
2017-09-19 15:56             ` Mike Snitzer
2017-09-19 15:56               ` Mike Snitzer
2017-09-19 16:04               ` Ming Lei
2017-09-19 16:04                 ` Ming Lei
2017-09-19 16:49                 ` Bart Van Assche
2017-09-19 16:49                   ` Bart Van Assche
2017-09-19 16:49                   ` Bart Van Assche
2017-09-19 16:55                   ` Ming Lei
2017-09-19 16:55                     ` Ming Lei
2017-09-19 18:42                     ` Bart Van Assche
2017-09-19 18:42                       ` Bart Van Assche
2017-09-19 18:42                       ` Bart Van Assche
2017-09-19 22:44                       ` Ming Lei
2017-09-19 22:44                         ` Ming Lei
2017-09-19 23:25                         ` Bart Van Assche
2017-09-19 23:25                           ` Bart Van Assche
2017-09-19 23:25                           ` Bart Van Assche
2017-09-19 23:50                           ` Mike Snitzer
2017-09-19 23:50                             ` Mike Snitzer
2017-09-20  1:13                             ` Ming Lei
2017-09-20  1:13                               ` Ming Lei
2017-09-20  1:19                   ` Ming Lei
2017-09-20  1:19                     ` Ming Lei
2017-09-19 15:48           ` Mike Snitzer
2017-09-19 15:48             ` Mike Snitzer
2017-09-19 15:52             ` Bart Van Assche
2017-09-19 15:52               ` Bart Van Assche
2017-09-19 15:52               ` Bart Van Assche
2017-09-19 16:03               ` Mike Snitzer
2017-09-19 16:03                 ` Mike Snitzer
2017-09-19 16:07             ` Ming Lei
2017-09-19 16:07               ` Ming Lei
2017-09-15 16:44 ` [PATCH 2/5] dm-mpath: return DM_MAPIO_REQUEUE in case of rq allocation failure Ming Lei
2017-09-15 17:29   ` Bart Van Assche
2017-09-15 17:29     ` Bart Van Assche
2017-09-15 20:06     ` Mike Snitzer
2017-09-15 20:48       ` Bart Van Assche
2017-09-15 20:48         ` Bart Van Assche
2017-09-17 13:23       ` Ming Lei
2017-09-19 14:41         ` Mike Snitzer
2017-09-19 15:56           ` Ming Lei
2017-09-17 12:51     ` Ming Lei
2017-09-15 16:44 ` [PATCH 3/5] dm-mpath: remove annoying message of 'blk_get_request() returned -11' Ming Lei
2017-09-15 16:44 ` [PATCH 4/5] block: export blk_update_nr_requests Ming Lei
2017-09-15 16:44 ` [PATCH 5/5] dm-mpath: improve I/O schedule Ming Lei
2017-09-15 20:10   ` Mike Snitzer
2017-09-15 20:56   ` Bart Van Assche
2017-09-15 20:56     ` Bart Van Assche
2017-09-15 21:06   ` Bart Van Assche [this message]
2017-09-15 21:06     ` Bart Van Assche
2017-09-15 21:42   ` Bart Van Assche
2017-09-15 21:42     ` Bart Van Assche

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