Performance problems after mainboard change

[Tobi]

Hey freenas-users,
thank you all for your support in advance. I changed the mainboard of my freenas-server and now I have significant performance problems. Maybe you can help me:

I ran the following first setup for 1/2 year without any problems:
- ASROCK B85M PRO4
- 1x 8GB Corsair Vengeance DDR3 Ram (PC1600, 16GB, CL9)
- Intel i3 4160T
- 5x Seagate Barracuda ST3000DM001 (3TB)
- KINGSTON SSD for the FreeNAS OS

I messaured the speeds (of the old setup) with CrystalDisk Mark with results ~>110MBytes/s.
-----------------------------------------------------------------------

CrystalDiskMark 3.0.3 x64 (C) 2007-2013 hiyohiyo
Crystal Dew World : http://crystalmark.info/

-----------------------------------------------------------------------

* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]


Sequential Read : 111.348 MB/s
Sequential Write : 108.164 MB/s
Random Read 512KB : 107.333 MB/s
Random Write 512KB : 106.163 MB/s
Random Read 4KB (QD=1) : 10.894 MB/s [ 2659.6 IOPS]

Random Write 4KB (QD=1) : 10.744 MB/s [ 2623.0 IOPS]

Random Read 4KB (QD=32) : 106.244 MB/s [ 25938.5 IOPS]

Random Write 4KB (QD=32) : 94.075 MB/s [ 22967.5 IOPS]


Test : 100 MB [Z: 0.0% (0.0/10797.0 GB)] (x9)
Date : 2015/02/30 19:12:43
OS : Windows 8.1 (x64)

After I g0t deeper into FreeNAS and used it more, I wanted to upgrade to an ECC compatible mainboard.
My new setup is:
- ASROCK E3C226D2I
- 2x 8GB Kingston ValueRAM - DDR3 - 8 GB - DIMM 240-PIN - 1600 MHz / PC3-12800 - CL11
- Intel i3 4160T
- 5x Seagate Barracuda ST3000DM001 (3TB)
- KINGSTON SSD for the FreeNAS OS

The PROBLEM is that after changing mainboard + ram the transfer rates are significantly lower! I measure speeds (of the new setup) around and below 90 MBytes/s:
-----------------------------------------------------------------------
CrystalDiskMark 3.0.3 x64 (C) 2007-2013 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 88.156 MB/s
Sequential Write : 101.968 MB/s
Random Read 512KB : 86.019 MB/s
Random Write 512KB : 96.548 MB/s
Random Read 4KB (QD=1) : 10.618 MB/s [ 2592.2 IOPS]
Random Write 4KB (QD=1) : 8.377 MB/s [ 2045.2 IOPS]
Random Read 4KB (QD=32) : 88.400 MB/s [ 21582.0 IOPS]
Random Write 4KB (QD=32) : 88.580 MB/s [ 21626.0 IOPS]

Test : 100 MB [N: 0.0% (0.0/10797.0 GB)] (x9)
Date : 2015/06/03 16:04:00
OS : Windows 8.1 (x64)

The FreeNAS configurations are very basic (just user/group, volume and cifs) and of course they are the same on both meassurements.

Because I transfer and store a lot of media files, I need every single MB/s :D
Please help me if you have any idea why the performance dropped and how to solve that!
Thank you!

 

[SweetAndLow]

CrystalDiskMark isn't a test that gives you any good information. It is meant to test local disk reads/writes. You are testing network reads and writes. If you want to get an idea of performnace you need to get your local read and write speeds using something like dd. Then get your network speeds using iperf. Then look at your client for bottlenecks, like what nic does your client have and where are you transferring the data from. Your first test results are probably bogus because those number are very high for how you are testing. The second numbers are strange also because reads should usually be faster than writes. Also depending on how full your pool you get different performance results.