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  #1  
Old 10-12-2011
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Join Date: Nov 2011
Posts: 44
Getting slow speed while read/write with Corsair Force 3 180GB SSD in MBP 8

Most lately I have purchased Corsair Force 3 180GB SSD. I have MacBook Pro that I have purchased 3 weeks back. Is has a basic configuration. The SSD that I have newly acquired seems not compatible with the MacBook Pro don't know why? Also the desktop stated taking much time to load as soon as I have installed Lion. The speed for read and write seems to be too slow and disappointing.
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  #2  
Old 10-12-2011
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Join Date: Aug 2011
Posts: 354
Re: Getting slow speed while read/write with Corsair Force 3 180GB SSD in MBP 8

I guess there is some problem in your configuration. It is not upto the mark to support your recent hardware that you have installed. I suggest you to remove the Lion operating system from your MacBook pro. At least will give you much speed than you are actually getting recently. Just try an experiment what I have suggested.
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  #3  
Old 10-12-2011
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Join Date: Aug 2011
Posts: 362
Re: Getting slow speed while read/write with Corsair Force 3 180GB SSD in MBP 8

Is the EFI progressive on your MacBook. The most cutting edge form was discommandd Oct 26. I get preferable speeds over you from those tests. If its all the same to you composing a great index to the drive then erasing it attempt:
Code:
Write
time dd if=/dev/zero of=testfile bs=4k count=4194304
Read
time dd if=testfile of=/dev/null bs=4k count=4194304
Sequential write/read. I got 490MB/s+ using this.
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  #4  
Old 10-12-2011
Naq Naq is offline
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Join Date: Aug 2011
Posts: 323
Re: Getting slow speed while read/write with Corsair Force 3 180GB SSD in MBP 8

Following are my write and read results:

Code:
Write results:
4194304+0 records in
4194304+0 records out
17179869184 bytes transferred in 34.889100 secs (492413652 bytes/sec)

real 0m34.898s
user 0m1.195s
sys 0m27.768s


Read results:
4194304+0 records in
4194304+0 records out
17179869184 bytes transferred in 41.565201 secs (413323375 bytes/sec)

real 0m41.575s
user 0m1.019s
sys 0m9.637s
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  #5  
Old 10-12-2011
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Join Date: Jul 2011
Posts: 423
Re: Getting slow speed while read/write with Corsair Force 3 180GB SSD in MBP 8

I am seeing different SSD are reaching the 490 speed/write rating with the same benchmarking system. According to me its not because of Mac that it is getting that speed. Corsair drives should have issues with OS X I figure. I trust the RMA system will tell me the last, but if not, I realize what I am determined to do.
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  #6  
Old 10-12-2011
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Join Date: Mar 2011
Posts: 413
Re: Getting slow speed while read/write with Corsair Force 3 180GB SSD in MBP 8

I purchased a Corsair 120GB Force GT for my 2011 13" MacBook Pro 8,1. I purchased this Corsair Force GT for the reason that I like the specifications and would be unable to hold up to indicate off to my mates with alternate slower-specced SSDs. I knew the dangers following perusing this discussion but acquired it anyway, looks like I got a spot unlucky. Peruse speeds are excellent, but write speeds are wretched. What's far more atrocious is that I've had it in for 2 days and at present had about 3 lockups.
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  #7  
Old 10-12-2011
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Join Date: May 2011
Posts: 415
Re: Getting slow speed while read/write with Corsair Force 3 180GB SSD in MBP 8

I have the best drivers under right hardware, but I genuinely cannot recommend these drives for MacBooks. People are grumbling about lockups and speeds on both sata II and sata III. Once in a while you do what needs to be done and turned out worse off.
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  #8  
Old 10-12-2011
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Join Date: May 2011
Posts: 501
Re: Getting slow speed while read/write with Corsair Force 3 180GB SSD in MBP 8

I was utilizing the PC which got locked suddenly while it was running. Actually, without lockups, this could have been to a limited extent longer than the write technique. That methodology might as well have taken ~40 seconds, but it took 110 seconds, which is over a moment of lockups. Drive is fine under write, but is now bolting up quite gravely the same time as peruses. The positively enticing thing is that the drive appears fine when you give it a chance to do its thing. I did dd peruse and unequivocally alternate terminal there while it was running, it didn't bolt up got 38 seconds a couple times in succession. Then I did the dd peruse test while utilizing the PC, and it bolted up against all odds I did it that method.
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  #9  
Old 10-12-2011
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Join Date: Jun 2011
Posts: 867
Re: Getting slow speed while read/write with Corsair Force 3 180GB SSD in MBP 8

Below are my read and write results after performing the above solution:
  • 4194304+0 records in
  • 4194304+0 records out
  • 17179869184 bytes transferred in 33.997931 secs (505321020 bytes/sec)

Then did the read test:
  • 4194304+0 records in
  • 4194304+0 records out
  • 17179869184 bytes transferred in 109.358844 secs (157096295 bytes/se
c)
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  #10  
Old 11-12-2011
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Join Date: May 2011
Posts: 293
Re: Getting slow speed while read/write with Corsair Force 3 180GB SSD in MBP 8

According to me it gets locked up under huge access. Did a Time Machine alternate and it bolted up about 10 times the same time as. Sleep has been fine, did have an issue leaving hibernation however took about 11 moments once. Hard drive doze is turned off. Lack the capacity to turn off SMS-have a HDD in optibay.
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