Scandisk Extreme II: Perofrmance seems lacking

Hi,

I have a Scandisk Extreme II 240GB SSD. Below is my benchmark result from Crystaldisk Mark. It doesn't seem to be performing as well as it should. I am using the latest Intel RST driver also. Any reasons behind this?


CrystalDiskMark 3.0.3 x64 (C) 2007-2013 hiyohiyo
Crystal Dew World : Crystal Dew World
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* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 471.952 MB/s
Sequential Write : 403.105 MB/s
Random Read 512KB : 321.916 MB/s
Random Write 512KB : 406.114 MB/s
Random Read 4KB (QD=1) : 27.279 MB/s [ 6660.0 IOPS]
Random Write 4KB (QD=1) : 53.332 MB/s [ 13020.5 IOPS]
Random Read 4KB (QD=32) : 377.574 MB/s [ 92181.2 IOPS]
Random Write 4KB (QD=32) : 304.155 MB/s [ 74256.7 IOPS]

Test : 100 MB [C: 53.6% (119.7/223.5 GB)] (x1)
Date : 2014/05/29 11:12:38
OS : Windows 7 Professional SP1 [6.1 Build 7601] (x64)


Thanks

 

Give us screenshot of AS-SSD benchmark
http://www.filehippo.com/download_asssdbenchmark/

 

The drive is a SanDisk Extreme II - not a 'scandisk'.

What seems to be lacking? The scores you show are inside a working (and booted) O/S drive, correct? Unless you boot into safe mode or boot from another drive and attach the drive you want to bench with a secondary SATA controller then the synthetic tests you're chasing will not match the scores shown elsewhere on the web.


In your workload, does it perform as expected (i.e.: faster than what you had previously... especially a HDD)?

If it does, then I would venture that you can safely ignore the scores which seem 'lacking' to you.


For completeness: what O/S, what (specific) Intel RST driver and what tweaks (if any) have you done to your O/S installation?

 

I have Windows 7 Pro and the latest RST driver 12.9 or whatever its called.. Did the benchmark Unit asked me to do and got this score..

 

How long has it been since you got that drive?
My Sandisk Extreme II drive also showed similar scores immediately after I freshly migrated my Windows 7 system over. The speed climbed back to the advertised amounts over a few boot cycles and a couple of hours of idle time.
Just use the drive as normal, give the SSD some time to clean itself up after a few days, and then benchmark it. You're not that far off what the drive is capable of.
If it consistently maintains that speed or if the speed drops, then it could be another issue which can then be investigated.

 

I've had it for 3 weeks or so now.. I'll give it some time and let's see how it goes... Thanks again everyone...

 

TomJGX,

if you haven't already: disable the sleep feature in the power options and leave your system on overnight with no other programs running.

If you can force the 'maintenance' on Win7 do so - and leave it for a few hours while it does what it needs to do.

Oh and stop benchmarking it - all that does is present a very specific 'workflow' to the storage subsystem and ultimately takes away from the real world use you want to see it excel at.

Good luck.

 

Tiller what do you mean by force maintainence? I don't get that ^^^

 

It sounds like tiller is suggesting to leave the system active and idle so TRIM will run and the SSD will restore any performance lost through activity.

 

I am suggesting that, but also suggesting to manually run the Automatic Maintenance in Action Center.

In Windows 8/8.1, Action Center, Automatic Maintenance, it allows you to manually run maintenance (this could take a good hour or more, depending on the last time it was allowed to run fully to completion). I'm not sure if Windows 7 will allow you to manually run this, but either way leaving on for over night (~8 hrs) should allow the Automatic Maintenance to kick in by itself.