M17x R3 SSD 4k random LOW - throttle issue with SSD like R2 ?

I just got a Vertex 3 120GB for a few days and currently having a very low 4k random write:




Windows 7 clean install. TOtal data writen ~90GB. SATA III.

I've heard about the R2's same issue with throttle problem. Any one with R3 + SSD can confirm this ??

 

that's my Intel 510 120gb in r3 operating in sata III raid mode..I have a low 4k speed too

 

Here is what Legitreviews got with their 240GB. According to the specifications from OCZ 120 GB and 240GB are similar. Sequential read is the same, 4K random write are the exact same but the sequential write in 240 are 20MB/s faster. Couldn`t find any 120 GB reviews. They got much better score in almost everything than you...LOL look at the sequential write...


OCZ Vertex 3 SATA III 2.5" SSD - OCZ

 

Most of the newer sataIII ssds achieve their high Seq reads/writes by lowering their 4k speed. Best ssd for 4k speed is the c300.

 

@Yes the R3 has the same behavior like the R2.

In general, don't expect to see full SSD performance on a laptop unless you are willing to perform some tweaking and loose many features essential to notebooks.
Simply put you need to transform your laptop to a desktop.
There is a way to do it and I have posted it on the SSD section of this forum as a response to the OP, but it has side effects...

 

For people with limited knowledge of SSDs could someone please explain what the low scores on the 4K actually means? Why are the four different Read and Write parts to the graph(seq, 512k, 4k and 4k QD32)?

 

Very simply put:
Seq -> How fast you can read and write big files on your computer
512k -> How fast you can read and write files with a size of 512KB
4k -> It is a good indicator of how snappy your OS will feel because a big amount of operations performed are on small files (ie 4KB).
4k QD32 -> How fast your SSD will perform when you perform heavy duty tasks and excessive workload (normal desktop usage varies between 0-5QD, 32QD wont matter to most of us)

The bigger the numbers you see the better (except from the access times that you want them to be as low as possible)

 

I was considering purchasing the Intel 510 like its.kvn would you recommend either going with it or just a standard HDD? It would be nice to get quicker load up times for programs and games. Thanks for the help.

 

90GB on C: without games? Lol. WTH?

 

Thanks stamatisx I really appreciate your help. I just wanted to ask r3 users if they also have lower 4ks than what they supposed to be. So PM67 chipset also suffer from the same throttle issu with pm55, am i right?

@cloudfire: no, the 120gb ocz vertex 3 has significantly lower speed than the 240gb.

 

Total written taken from S.M.A.R.T data, not "used" space

 

Didn`t you read the link i gave you?
OCZ Vertex 3 SATA III 2.5" SSD - OCZ

EDIT: Nevermind. Did read the 120 GB review from Anandtech. You are right. There is quite a difference between 120 and 240.

 

The read speeds seem to be very close to what OCZ is claiming it can achieve on the spec sheet on retailor's websites however the write speed is much lower than what they say it can achieve any idea why it isn't getting close to the 500-520MB/s?

 

Yeah that was what i was wondering as well. Over 200MB/s (Almost 300MB/s for OP) from max write is a whole lot. According to the official specs 120 and 240 should be very similar in performance too. But this is typical SandForce. Good on the paper but when it comes to the real deal, they usually fall under.

 

I added an option to ThrottleStop a while ago to try to improve the SSD 4K Write numbers but I didn't get much feedback at the time. error-id10t who discovered this trick saw a significant improvement but there hasn't been enough testing to find out what's really going on.

Try adding this to the ThrottleStop.ini configuration file:

CStateDemotion=3

There is also a button in the latest version of ThrottleStop in my sig towards the lower right when using Core i CPUs that can be toggled from C1/C3/C6/C7. On some Sandy Bridge motherboards this button will be locked. If it is unlocked, try setting this to C1.

These two tricks try to block the CPU package from entering some of the deeper sleep states. Not really recommended when on battery power but when plugged in, they might give your 4K Write speeds a little boost. I don't have any hardware to test on so if this works or doesn't, let me know what SSD and motherboard you are testing on.

 

The intel 510 has been serving me well..i would recommend it to you, but if you really want more speed, you should get the vertex 3..however, intel should be more reliable than the ocz