[dm-devel] [RFC PATCH 0/4] dm mpath: vastly improve blk-mq IO performance
Johannes Thumshirn
jthumshirn at suse.de
Fri Apr 8 11:42:16 UTC 2016
Ladies and Gentlemen,
To show off some numbers from our testing:
All tests are performed against the cache of the Array, not the disks as we
wanted to test the Linux stack not the Disk Array.
All single queue tests have been performed with the deadline I/O Scheduler.
Comments welcome, have fun reading :-)
QLogic 32GBit FC HBA NetApp EF560 Array w/ DM MQ this patchset:
========================================================
Random Read:
BS | IOPS | BW |
------+------------+-------------------+
4k | 785136 | 3066.1MB/s |
8k | 734983 | 5742.6MB/s |
16k | 398516 | 6226.9MB/s |
32k | 200589 | 6268.5MB/s |
64k | 100417 | 6276.2MB/s |
Sequential Read:
BS | IOPS | BW |
------+------------+-------------------+
4k | 788620 | 3080.6MB/s |
8k | 736359 | 5752.9MB/s |
16k | 398597 | 6228.8MB/s |
32k | 200487| 6265.3MB/s |
64k | 100402 | 6275.2MB/s |
Random Write:
BS | IOPS | BW |
------+------------+-------------------+
4k | 242105 | 968423KB/s |
8k | 222290 | 1736.7MB/s |
16k | 178191 | 2784.3MB/s |
32k | 133619 | 4175.7MB/s |
64k | 97693 | 6105.9MB/s |
Sequential Write:
BS | IOPS | BW |
------+------------+-------------------+
4k | 134788 | 539155KB/s |
8k | 132361 | 1034.8MB/s |
16k | 129941 | 2030.4MB/s |
32k | 128288 | 4009.4MB/s |
64k | 97776 | 6111.0MB/s |
QLogic 32GBit FC HBA NetApp EF560 Array w/ DM SQ this patchset:
========================================================
Random Read:
BS | IOPS | BW |
------+------------+-------------------+
4k | 112402 | 449608KB/s |
8k | 112818 | 902551KB/s |
16k | 111885 | 1748.3MB/s |
32k | 188015 | 5875.6MB/s |
64k | 99021 | 6188.9MB/s |
Sequential Read:
BS | IOPS | BW |
------+------------+-------------------+
4k | 115046 | 460186KB/s |
8k | 113974 | 911799KB/s |
16k | 113374 | 1771.5MB/s |
32k | 192932 | 6029.2MB/s |
64k | 100474 | 6279.7MB/s |
Random Write:
BS | IOPS | BW |
------+------------+-------------------+
4k | 114284 | 457138KB/s |
8k | 113992 | 911944KB/s |
16k | 113715 | 1776.9MB/s |
32k | 130402 | 4075.9MB/s |
64k | 92243 | 5765.3MB/s |
Sequential Write:
BS | IOPS | BW |
------+------------+-------------------+
4k | 115540 | 462162KB/s |
8k | 114243 | 913951KB/s |
16k | 300153 | 4689.1MB/s |
32k | 141069 | 4408.5MB/s |
64k | 97620 | 6101.3MB/s |
QLogic 32GBit FC HBA NetApp EF560 Array w/ DM MQ previous patchset:
============================================================
Random Read:
BS | IOPS | BW |
------+------------+-------------------+
4k | 782733 | 3057.6MB/s |
8k | 732143 | 5719.9MB/s |
16k | 398314 | 6223.7MB/s |
32k | 200538 | 6266.9MB/s |
64k | 100422 | 6276.5MB/s |
Sequential Read:
BS | IOPS | BW |
------+------------+-------------------+
4k | 786707 | 3073.8MB/s |
8k | 730579 | 5707.7MB/s |
16k | 398799 | 6231.3MB/s |
32k | 200518 | 6266.2MB/s |
64k | 100397 | 6274.9MB/s |
Random Write:
BS | IOPS | BW |
------+------------+-------------------+
4k | 242426 | 969707KB/s |
8k | 223079 | 1742.9MB/s |
16k | 177889 | 2779.6MB/s |
32k | 133637 | 4176.2MB/s |
64k | 97727 | 6107.1MB/s |
Sequential Write:
BS | IOPS | BW |
------+------------+-------------------+
4k | 134360 | 537442KB/s |
8k | 129738 | 1013.6MB/s |
16k | 129746 | 2027.3MB/s |
32k | 127875 | 3996.1MB/s |
64k | 97683 | 6105.3MB/s |
Emulex 16GBit FC HBA NetApp EF560 Array w/ DM MQ this patchset :
========================================================
[Beware, this is with Hannes' lockless lpfc patches, which are not upstream as
they're quite experimental, but are good at showing the capability of the new
dm-mpath]
Random Read:
BS | IOPS | BW |
------+------------+-------------------+
4k | 939752 | 3670.1MB/s |
8k | 741462 | 5792.7MB/s |
16k | 399285 | 6238.9MB/s |
32k | 196490 | 6140.4MB/s |
64k | 100325 | 6270.4MB/s |
Sequential Read:
BS | IOPS | BW
------+------------+-------------------+
4k | 926222 | 3618.6MB/s |
8k | 750125 | 5860.4MB/s |
16k | 397770 | 6215.2MB/s |
32k | 200130 | 6254.8MB/s |
64k | 100397 | 6274.9MB/s |
Random Write:
BS | IOPS | BW |
------+------------+-------------------+
4k | 251938 | 984.14MB/s |
8k | 226712 | 1771.2MB/s |
16k | 180739 | 2824.5MB/s |
32k | 133316 | 4166.2MB/s |
64k | 98738 | 6171.2MB/s |
Sequential Write:
BS | IOPS | BW |
------+------------+-------------------+
4k | 134660 | 538643KB/s |
8k | 131585 | 1028.9MB/s |
16k | 131030 | 2047.4MB/s |
32k | 126987 | 3968.4MB/s |
64k | 98882 | 6180.2MB/s |
Emulex 16GBit FC HBA NetApp EF560 Array w/ DM SQ this patchset:
========================================================
Random Read:
BS | IOPS | BW |
------+------------+-------------------+
4k | 101860 | 407443KB/s |
8k | 100242 | 801940KB/s |
16k | 99774 | 1558.1MB/s |
32k | 134304 | 4197.8MB/s |
64k | 100126 | 6257.1MB/s |
Sequential Read:
BS | IOPS | BW |
------+------------+-------------------+
4k | 285585 | 1115.6MB/s |
8k | 313619 | 2450.2MB/s |
16k | 190696 | 2979.7MB/s |
32k | 200569 | 6267.9MB/s |
64k | 100366 | 6272.1MB/s |
Random Write:
BS | IOPS | BW |
------+------------+-------------------+
4k | 98434 | 393738KB/s |
8k | 97286 | 778294KB/s |
16k | 97623 | 1525.4MB/s |
32k | 126999 | 3968.8MB/s |
64k | 94309 | 5894.4MB/s |
Sequential Write:
BS | IOPS | BW |
------+------------+-------------------+
4k | 330066 | 1289.4MB/s |
8k | 452792 | 3537.5MB/s |
16k | 334481 | 5226.3MB/s |
32k | 186916 | 5841.2MB/s |
64k | 88698 | 5543.7MB/s |
--
Johannes Thumshirn Storage
jthumshirn at suse.de +49 911 74053 689
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)
Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850
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