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Is my SSD supposed to be this slow?

H

Hydrocity

macrumors 6502a
Original poster
May 14, 2010
527
0
Screen shot 2011-06-06 at 4.39.59 PM.png

I have an Intel 120GB 510 series in my MBP. I know this is a Sata 3 drive and my comp only has Sata 2, but I should still have higher speeds.

Im not averaging the top 200mb/s speeds its states I should have. Link to Intel's page.

Should I do a wipe and re-install? Would that even help?

Thanks
 
What bay is the SSD in? The HDD bay or the Optical bay? Some Optibays are reporting Sata II speeds.
 
Hydrocity said:
View attachment 288391

I have an Intel 120GB 510 series in my MBP. I know this is a Sata 3 drive and my comp only has Sata 2, but I should still have higher speeds.

Im not averaging the top 200mb/s speeds its states I should have. Link to Intel's page.

Should I do a wipe and re-install? Would that even help?

Thanks
Click to expand...

Did you turn on trim? I read that SSDs that have garbage collection should not have trim turned on with the trim enabler. People that have done that experienced problems similar to yours.
 
bpeeps said:
What bay is the SSD in? The HDD bay or the Optical bay? Some Optibays are reporting Sata II speeds.
Click to expand...

Im in the Optibay. I have a 2010 MBP, so I dont have sata 3. Intel says, this SSD should be 400+ with Sata 3, and close to 250 in both read and write for Sata 2. But Im not even getting the average Sata 2 speeds.

wangkom said:
Did you turn on trim? I read that SSDs that have garbage collection should not have trim turned on with the trim enabler. People that have done that experienced problems similar to yours.
Click to expand...

How do I go about doing that?
 
That's a little slow. Not terribly slow, but a little slow. That SSD will be seriously throttled back by your SATA connection. The write speeds are more alarming than the read speeds. Have you tinkered with the AJA settings to see if they values change?
 
wangkom said:
Did you turn on trim? I read that SSDs that have garbage collection should not have trim turned on with the trim enabler. People that have done that experienced problems similar to yours.
Click to expand...

Does the intel 510 have its own garbage collection? I thought it had TRIM and that was it...
 
I used the app Trim Enabler

Trim support says yes, my speeds are the same :(

And yes, I tried many combinations on AJA, and I still get the same
 
Trim enabler is not from Apple so I would not use it. You can get trim support in a month with Lion.
 
KJmoon117 said:
There was a thread a while ago that reported that using the TRIM enabler made the Intel SSDs dog slow.
Click to expand...

IIRC, it was non Intel drives that got sluggish, as I have 2 Intel's myself running the TRIM enabler just fine. I think either the OCZ or OWC drives with aggressive GC were not friendly with the TRIM program.
 
jenzjen said:
IIRC, it was non Intel drives that got sluggish, as I have 2 Intel's myself running the TRIM enabler just fine. I think either the OCZ or OWC drives with aggressive GC were not friendly with the TRIM program.
Click to expand...

What speeds are your SSDs getting?
 
jenzjen said:
IIRC, it was non Intel drives that got sluggish, as I have 2 Intel's myself running the TRIM enabler just fine. I think either the OCZ or OWC drives with aggressive GC were not friendly with the TRIM program.
Click to expand...

Yep, avoid using TRIM enabler with OCZ drives. They don't get along well (lots of beachballs).
 
If you are using the OptiBay it's possible that the drive is only connected at 1.5G speed (even though the bay officially supports 3G). You can check that via System Profiler (About this Mac).
 
Screen shot 2011-06-08 at 7.27.41 AM.png

It is at 3GB/s. My hard drive is running at 1.5 though, but thats the Hard drive
 
Then the question is what read/write block sizes are used by Aja. The specs published by Intel (and others) usually are based on Windows based ATTO benchmark with a large block size.

It makes a huge difference whether you are using 4 kb blocks or 2048 kb blocks. I will have to check this, but using another setting for video frame size could lead to another block size.

If not you would need to use a different benchmark. Try XBench for another free one.
 
Screen shot 2011-06-08 at 4.01.58 PM.png

xBench Disk Test. Im not really sure what all of those stats mean, but I do see all speeds under 200
 
I'm trying to figure out if I should use Trim Enabler for my Vertex 3 Max IOPS. Anyone know?
 
Hydrocity said:
So will doing a fresh install on the SSD make a difference?
Click to expand...

Launch the Intel tool box software and run a secure erase on the drive. This gets it back to factory fresh and only takes a few minutes. Then, reinstall your OS and the TRIM support enabler from these forums. That should get your SSD as fast as possible. If it is still slower than it should be, ask for a replacement.

Note, I have the G2 Intel's, so you should search the TRIM support enabler forum to make sure people recommend running this program on your specific Intel drive.

Google for any of these, will come right up.
 
jenzjen said:
Launch the Intel tool box software and run a secure erase on the drive. This gets it back to factory fresh and only takes a few minutes. Then, reinstall your OS and the TRIM support enabler from these forums. That should get your SSD as fast as possible. If it is still slower than it should be, ask for a replacement.

Note, I have the G2 Intel's, so you should search the TRIM support enabler forum to make sure people recommend running this program on your specific Intel drive.

Google for any of these, will come right up.
Click to expand...

From what I am seeing, the Intel tool box is windows only
 
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