9.1RC2 vs 8.3.0

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pbucher

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Here is some less then precise but still useful feedback 9.1 performance.

Hardware:
2 almost identical hardware servers running ESXi 5.1U1(9.1 box has 2.5 ghz CPU cores and 8.3.0 box has 2.6 ghz CPU cores). The FreeNAS VMs both have 20GB of ram, 4 CPU cores, and use a pass-though LSI 2308 card attached to a 48 bay Supermicro enclosure filled with 16 Seagate Constellation 1 TB SAS drives each and a stec zeusram for a slog device(though that doesn't come into play with this test since the test is async). Both boxes are running pretty much out of the box FreeNAS with no tuning to speak of(including auto tuning).

The zpools are both made up of 3 raidz volumes of drives each. The 9.1 box is a upgrade of a 8.3.x install and hasn't had zpool upgrade run on it.

Below is the feedback from 3 consecutive tests on each box using dd. Note: This is just meant to test the raw performance of zpool. Benchmarking iSCSI,NFS,CIFS is beyond my current scope.

8.3.0 Box
[root@san] /mnt/san/lancaster# dd if=/dev/zero of=ddfile bs=128k count=200000
200000+0 records in
200000+0 records out
26214400000 bytes transferred in 60.643266 secs (432272233 bytes/sec)
[root@san] /mnt/san/lancaster# dd if=/dev/zero of=ddfile bs=128k count=200000
200000+0 records in
200000+0 records out
26214400000 bytes transferred in 36.608719 secs (716069850 bytes/sec)
[root@san] /mnt/san/lancaster# dd if=/dev/zero of=ddfile bs=128k count=400000
400000+0 records in
400000+0 records out
52428800000 bytes transferred in 75.796098 secs (691708431 bytes/sec)

9.1.0RC2 Box
[root@sandbox] /mnt/san/lancaster# dd if=/dev/zero of=ddfile bs=128k count=200000
200000+0 records in
200000+0 records out
26214400000 bytes transferred in 42.569982 secs (615795421 bytes/sec)
[root@sandbox] /mnt/san/lancaster# dd if=/dev/zero of=ddfile bs=128k count=200000
200000+0 records in
200000+0 records out
26214400000 bytes transferred in 28.866963 secs (908110765 bytes/sec)
[root@sandbox] /mnt/san/lancaster# dd if=/dev/zero of=ddfile bs=128k count=400000
400000+0 records in
400000+0 records out
52428800000 bytes transferred in 57.439330 secs (912768305 bytes/sec)

Watching both boxes using zpool iostat -v 10 during the last final test the 8.3.0 box hit a high of 789MB/sec and the 9.1RC2 at 959MB/sec. Based on these quick tests it appears that 9.1 is going to give us some much improved raw zpool performance and is getting fairly close to the maximum raw performance of the drives themselves.

Congrats to the FreeBSD & FreeNAS teams for putting together what is looking to be a great performing release.

A snap of the 9.1 array in action:
san 3.48T 10.1T 1 7.87K 193K 959M
raidz1 1.16T 3.37T 0 2.61K 13.4K 318M
gptid/02494665-14aa-11e2-8643-005056ac0e80 - - 0 681 102 79.9M
gptid/02a3aab2-14aa-11e2-8643-005056ac0e80 - - 0 675 3.35K 79.3M
gptid/02fdf259-14aa-11e2-8643-005056ac0e80 - - 0 676 3.35K 79.4M
gptid/035a380e-14aa-11e2-8643-005056ac0e80 - - 0 682 3.35K 80.1M
gptid/03b7bab8-14aa-11e2-8643-005056ac0e80 - - 0 678 3.30K 79.5M
raidz1 1.16T 3.37T 0 2.62K 89.8K 319M
gptid/9eec528c-14aa-11e2-8643-005056ac0e80 - - 0 684 19.3K 80.2M
gptid/9f5912b4-14aa-11e2-8643-005056ac0e80 - - 0 683 6.39K 80.1M
gptid/9fbf4dc5-14aa-11e2-8643-005056ac0e80 - - 0 681 19.2K 80.0M
gptid/a0224c86-14aa-11e2-8643-005056ac0e80 - - 0 679 22.4K 79.7M
gptid/a0912d86-14aa-11e2-8643-005056ac0e80 - - 0 678 22.4K 79.5M
raidz1 1.16T 3.37T 0 2.64K 89.9K 322M
gptid/d5c825f3-14aa-11e2-8643-005056ac0e80 - - 0 676 12.9K 79.5M
gptid/d627c990-14aa-11e2-8643-005056ac0e80 - - 0 675 16.1K 79.4M
gptid/d68824be-14aa-11e2-8643-005056ac0e80 - - 0 679 19.2K 79.8M
gptid/d6ec2b59-14aa-11e2-8643-005056ac0e80 - - 0 688 22.4K 81.0M
gptid/d74c7d89-14aa-11e2-8643-005056ac0e80 - - 0 676 19.3K 79.7M
logs - - - - - -
gptid/6a5637fd-a6c1-11e2-ae12-005056ac7786 740K 7.44G 0 5 0 71.1K
 

William Grzybowski

Wizard
iXsystems
Joined
May 27, 2011
Messages
1,754
FreeNAS 9.1.0 uses FreeBSD 9-STABLE, which includes the unmapped IO feature. Thats probably the reason for greater performance.
 

cyberjock

Inactive Account
Joined
Mar 25, 2012
Messages
19,526
OOO. Very nice!
 
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