Terrible read write performance test with Mushkin Chronos 180GB SSD

[haroon_86]

Hi

I have a Mushkin chronos system drive and another ssd for projects. I feel like I am getting a terrible performance with the Mushkin considering that it is supposed to be faster than my project ssd. I am wondering if anyone with knowledge of this stuff can shed some light.

I feel like the difference is pretty huge. However the Mushkin SSD is my system drive maybe that might explain the difference here? Especially the random write seems just too big of a difference to miss.

I used CrystalDiskMark


Firmware : 504ABBF0
Serial Number : MKN1238A0000129041
Disk Size : 180.0 GB (8.4/137.4/180.0)
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 189.741 MB/s
Sequential Write : 113.167 MB/s
Random Read 512KB : 183.839 MB/s
Random Write 512KB : 120.426 MB/s
Random Read 4KB (QD=1) : 27.502 MB/s [ 6714.4 IOPS]
Random Write 4KB (QD=1) : 86.946 MB/s [ 21226.9 IOPS]
Random Read 4KB (QD=32) : 168.804 MB/s [ 41211.8 IOPS]
Random Write 4KB (QD=32) : 98.312 MB/s [ 24002.0 IOPS]

Test : 100 MB [C: 70.2% (117.7/167.7 GB)] (x4)
Date : 2012/12/05 21:50:39
OS : Windows 7 Professional SP1 [6.1 Build 7601] (x64)

**********************************************************
----------------------------------------------------------------------------
(4) OCZ-AGILITY4
----------------------------------------------------------------------------
Model : OCZ-AGILITY4
Firmware : 1.5.2
Serial Number : OCZ-601APNHVSR48630M
Disk Size : 256.0 GB (8.4/137.4/256.0)
Buffer Size : >= 32767 KB

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

Sequential Read : 246.492 MB/s
Sequential Write : 217.269 MB/s
Random Read 512KB : 175.516 MB/s
Random Write 512KB : 215.057 MB/s
Random Read 4KB (QD=1) : 20.528 MB/s [ 5011.7 IOPS]
Random Write 4KB (QD=1) : 85.396 MB/s [ 20848.7 IOPS]
Random Read 4KB (QD=32) : 185.714 MB/s [ 45340.2 IOPS]
Random Write 4KB (QD=32) : 184.969 MB/s [ 45158.4 IOPS]

Test : 100 MB [P: 32.2% (76.7/238.5 GB)] (x4)
Date : 2012/12/05 21:55:08
OS : Windows 7 Professional SP1 [6.1 Build 7601] (x64)


thanks

 

[HugoStiglitz]

try using atto disk benchmark as most SSD vendors use this software for their benchmark.

how full are each of the drives as this can also slow things down.

 

[haroon_86]

Hi
Muskin has 50 gb free and the other one has 160 gb free. I am just wondering if these numbers are expected at all.

 

[mad-max79]

Can you give us more detail on your hardware, board, cpu, ram...

 

[haroon_86]

Can you give us more detail on your hardware, board, cpu, ram...

Hi

I have
32gb ram, (1600mhz)
X79A-GD45
i7 3930K (@4.2)
GTX 570
I have 2 SSD 2 SATA installed in the system

 

[cin19]

1) You connect the SSD to the SATAII=SATA/300. You need to connect to the SATAIII ports #1/#2, check your MB manual.

2) Download the AS SSD http://alex-is.de/PHP/fusion/downloads.php?download_id=9
And to see the upper left side to show the alignment--- green is good (like 103424-OK), if it is red that is bad.

3) Also to see it is in AHCI mode or IDE too. I think you don't set the AHCI in the BIOS, but if it is then you can change it following the link http://support.microsoft.com/kb/922976

 

[haroon_86]

Hi

Thanks for everyone who replied here. I was misguided by the default value of the CDM

When I change to 0 fills it performs much better.
Here is a note from one of the test sites

http://www.thinkcomputers.org/mushkin-chronos-deluxe-240gb-solid-state-drive-review/5/
"
CrystalDiskMark is our next test and it has a sequential read / write test as well as a 512k and 4k random read / write test. With SandForce-based drives we run this test with 0-fill because SandForce-based drives do not handle incompressible data that well.
"