OCZ Vertex 3 Max IOPS "Am I getting good numbers?"

[Tarvaln]

I was wondering if these were acceptable numbers for one of these drives. I don't expect to get box listed numbers but the write numbers seem about half the box listed 500mb/s. The drive is connected to my MB (via Port 1 with AHCI enabled on all ports) with a SATA III 6.0 gb/s cable. I did a clean install of Win7 64 Ultimate.
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CrystalDiskMark 3.0.1 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 : 523.242 MB/s
Sequential Write : 253.187 MB/s
Random Read 512KB : 479.399 MB/s
Random Write 512KB : 253.632 MB/s
Random Read 4KB (QD=1) : 36.082 MB/s [ 8809.0 IOPS]
Random Write 4KB (QD=1) : 124.102 MB/s [ 30298.4 IOPS]
Random Read 4KB (QD=32) : 190.791 MB/s [ 46579.8 IOPS]
Random Write 4KB (QD=32) : 200.916 MB/s [ 49051.7 IOPS]

Test : 1000 MB [C: 20.3% (22.7/111.7 GB)] (x5)
Date : 2011/10/26 1:45:37
OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)

Sidenote: I disabled Pagefile on my SSD and enabled it on my HDD. The reason was to save space on the SSD. Good idea or bad idea? Has anyone notice this and seen a performance difference?

Thanks for any input.

 

[Elixer]

Looks about right.
As for the pagefile, I would set it to either the HD or SSD, and set min=max=2GB. That should be more than enough. Some people say HD is better, other people say SSD is better. On my system, I do have a small pagefile on the SSD of around 512MB, this is so the system can write crash dumps, and I have one on the HD that is 2GB.

I also assume you have disabled hibernation ? That file would eat up 8GB on your system.

 

[Tarvaln]

I disabled Hibernation. The 22 gigs I'm using on the SSD is for the OS and Adobe Creative Suite 5.
Found a good article about pagefiles here. It's a recent article with some benchmarks and testing. In that article there is a link that shows a way to have a DedicatedDumpFile. That's what I will be doing. I will not have any pagefile set on my SSD. I will have a 2GB pagefile set on my first HDD.

 

[kapalua12]

I have the 240 GB Vertex 3 MAX IOPS on the SATA 0 Intel header, 6GB/sec SATA chip and get the advertised speeds.

My understanding and I could be wrong is Win 7 will modify your page file settings depending on it's needs or lack of need. A good place to get opinions is on the OCZ forum for Vertex 3.

These are wonderful drives (when you get them to work). I've been fortunate as have you. Sounds like you know what you're doing.

Note that in addition to turning off hibernation, you need to delete the hiber file on the SSD via a reg edit.

 

[groberts101]

as to the original question.. the Sandforce controller uses compression to achieve top rated speeds(which were done with the ATTO benchmark) and using benchmarks like that one will eliminate much of its benefit as that test data is incompressible.

Also be aware that you just wrote 20 gigs worth of test trash to the SSD with that default 5 x 1000MB test. Never use more than 3 x 100MB as it just trashs all your free blocks to use such large tests and will eventually make the SSD slow down and require some logged off idle time to recover through garbage collection(GC). TRIM alone will not save you as most of those blocks are recovered during GC time anyways.

Would be better to use the 2 tools used to rate the drives which are ATTO and AS SSD and only use them very rarely.

 

[Tarvaln]

Thanks for the input.
@Kapalua: I'll check out those forums. Also, I used these steps to disable hibernation.

If you use the power options in Control Panel, you can turn off hibernation. However, the hibernation file remains. To disable hibernation and delete the hibernation file, you have to use powercfg command line tool. Follow these steps.

Open up an elevated command prompt.
Type this command.
powercfg -h off

That’s it. If you ever want to turn it back on. Just type powercfg -h on .

@groberts: Yea, after I ran the test I thought "Did I just write 20GB!?" (/facepalm). I may run the ATTO test just to see how the numbers are. But if my numbers are around what people are getting with this drive then I'm happy. I'm not trying to "max" it out. I doubt I could tell the difference in real world use.

 

[razel]

Put your page file back on the SSD. Your CDM shows that you have a 120GB SSD not 32GB. There's plenty of space and you have 8GB of RAM. Once you put it back set it to have a minimum size of 16MB and set the max to ridiculous GB. That will allow it to grow as needed.

The dump file is useful for real programmers. Instead of going through the registry, you can disable or change it's location instead in System Properties/Advanced/Startup and Recovery. My development machine here has it disabled and I've yet a need to turn it on over 5 years. I guess I'm not a real programmer.

 

[Tarvaln]

In addition to changing the pagefile and disabling hibernation don't forget to clean up your winsxs folder. This saved 3GB on my drive.