Quote:
Originally Posted by FanIn80
Here's post-compression rating... (compare to the one I posted earlier in this thread, from when I first got the drive)
Code:
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CrystalDiskMark 3.0 x64 (C) 2007-2010 hiyohiyo
Crystal Dew World : http://crystalmark.info/
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* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 248.753 MB/s
Sequential Write : 109.504 MB/s
Random Read 512KB : 175.341 MB/s
Random Write 512KB : 107.689 MB/s
Random Read 4KB (QD=1) : 13.960 MB/s [ 3408.2 IOPS]
Random Write 4KB (QD=1) : 23.324 MB/s [ 5694.4 IOPS]
Random Read 4KB (QD=32) : 158.308 MB/s [ 38649.3 IOPS]
Random Write 4KB (QD=32) : 99.722 MB/s [ 24346.3 IOPS]
Test : 100 MB [C: 42.7% (63.6/148.9 GB)] (x5)
Date : 2010/10/22 17:05:41
OS : Windows 7 [6.1 Build 7600] (x64)
Looks like my performance did drop, although not to noticeable levels. I guess I have to weigh the performance loss with the 9GB storage gain. In reality, it's not like I even needed the extra hard drive space...
Hmmm... |
Code:
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CrystalDiskMark 3.0 x64 (C) 2007-2010 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 218.629 MB/s
Sequential Write : 79.740 MB/s
Random Read 512KB : 208.292 MB/s
Random Write 512KB : 77.001 MB/s
Random Read 4KB (QD=1) : 28.319 MB/s [ 6913.7 IOPS]
Random Write 4KB (QD=1) : 71.050 MB/s [ 17346.2 IOPS]
Random Read 4KB (QD=32) : 163.669 MB/s [ 39958.2 IOPS]
Random Write 4KB (QD=32) : 72.369 MB/s [ 17668.2 IOPS]
Test : 50 MB [C: 67.4% (75.3/111.7 GB)] (x2)
Date : 2010/10/22 17:56:14
OS : Windows 7 [6.1 Build 7600] (x64)
Crystal Disk Mark doesn't give a picture across the drive though, HD Tune Pro will show performance across the whole drive, or HD Tach.
This is actually interesting, this was worse for me a few weeks ago, looks like my drive is slowly coming back in performance.. With the Sandforce drives the trim / garbage collection is very slow, but this is a lot better than it was. My whole drive was down at that 160MB/s level almost.
What's up with your Random QD=1 scores? Did you let Windows partition the drive, your partition alignment looks messed up.