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View Full Version : Help: MacBook Pro 6,1 Slow HDD?



Meh 626
14th August 2010, 05:53 PM
Hello MacTalks,

I return tonight with a different problem. I have been noticing my new-ish MBP 6,1 (2.66GHz i7) suffering from slow performance and minor freezes. After watching the write speed in Activity Monitor peak at an average of 5MB/s I decided to run Xbench disk test, below are the results.


http://www.meh626.com/imgdump/mbphddtest.png

The HDD is the stock standard 500GB 5400rpm. Are these results normal? Should I look at replacing the hard drive?

Thanks for your help,

Sebastianmonty
14th August 2010, 08:31 PM
The are normal. Definitely. Put in a 7200rpm, or zero out the drive and then install or clone back your files.
Here are some results from a 500GB 5400rpm drive of my.
Results 49.42
System Info
Xbench Version 1.3
System Version 10.6.2 (10C540)
Physical RAM 4096 MB
Model MacBookPro5,2
Drive Type FUJITSU MJA2500BH FFS G1
Disk Test 49.42
Sequential 75.86
Uncached Write 100.67 61.81 MB/sec [4K blocks]
Uncached Write 73.59 41.64 MB/sec [256K blocks]
Uncached Read 43.33 12.68 MB/sec [4K blocks]
Uncached Read 163.24 82.04 MB/sec [256K blocks]
Random 36.65
Uncached Write 12.92 1.37 MB/sec [4K blocks]
Uncached Write 107.01 34.26 MB/sec [256K blocks]
Uncached Read 67.80 0.48 MB/sec [4K blocks]
Uncached Read 130.34 24.19 MB/sec [256K blocks]


This is an SSD
Disk Test 242.42
Sequential 197.52
Uncached Write 200.95 123.38 MB/sec [4K blocks]
Uncached Write 222.08 125.65 MB/sec [256K blocks]
Uncached Read 120.86 35.37 MB/sec [4K blocks]
Uncached Read 400.28 201.18 MB/sec [256K blocks]
Random 313.73
Uncached Write 113.91 12.06 MB/sec [4K blocks]
Uncached Write 426.30 136.47 MB/sec [256K blocks]
Uncached Read 2281.63 16.17 MB/sec [4K blocks]
Uncached Read 842.28 156.29 MB/sec [256K blocks]

On my familoys computer, sorry xbench results not available, the disk was testing at 10ish. Yeah, that low. I did 7 zero out pass(although 1 should be fine) and then re-insatlled everything from scratch and it returned to 60. It has been good ever since.

So I recommend doing a reinstall like I have said above. It may bring the random higher which is important. Also you could install a 7200k but don't expect a major leap.
Whenever I have the conversation with friends I always say that the SSD has come late to the game. RAM, CPU, graphics have improved at an awesome rate in speed and power efficiency yet HDDs have not. HDDs haven't had the same speed that every other component has. They have only had increases in speed slightly but massive size increases.
The SSD should have been out 6 years ago and then the price would be much more affordable. But sadly it was developed fast enough and the result is expense and lack of size. But if you were ever going to buy a computer and speed $300 on that extra 200Mhz in the CPU then I would say SSD your mac instead and see an increase of 3-5X as opposed to an increase of 10%.

NihonPeter
14th August 2010, 10:58 PM
I return tonight with a different problem. I have been noticing my new-ish MBP 6,1 (2.66GHz i7) suffering from slow performance and minor freezes. After watching the write speed in Activity Monitor peak at an average of 5MB/s I decided to run Xbench disk test, below are the results.

The HDD is the stock standard 500GB 5400rpm. Are these results normal? Should I look at replacing the hard drive?


I am using an after market WD 500Gb Drive 5400rpm in an early 2008 MBP and seem to be suffering the same issues you are. I wonder if it is an issue with the OS and 500GB drives. It seems to pause every now and then like it is sleeping or spinning down. You then have to wait for it to spin back up. It does it at fairly regular intervals. Is there anyone with a solution for this?

Meh 626
15th August 2010, 10:43 AM
The are normal. Definitely. Put in a 7200rpm, or zero out the drive and then install or clone back your files.

So I recommend doing a reinstall like I have said above. It may bring the random higher which is important. Also you could install a 7200k but don't expect a major leap.

But if you were ever going to buy a computer and speed $300 on that extra 200Mhz in the CPU then I would say SSD your mac instead and see an increase of 3-5X as opposed to an increase of 10%.

Thanks for sharing your results. A SSD is on my purchase list, but I am waiting for a larger capacity SSD and the price per GB to come down.


I am using an after market WD 500Gb Drive 5400rpm in an early 2008 MBP and seem to be suffering the same issues you are. I wonder if it is an issue with the OS and 500GB drives. It seems to pause every now and then like it is sleeping or spinning down. You then have to wait for it to spin back up. It does it at fairly regular intervals. Is there anyone with a solution for this?

Interesting that you are having similar symptoms. Anyone else with this issue?

Mutters
15th August 2010, 12:52 PM
Thanks for sharing your results. A SSD is on my purchase list, but I am waiting for a larger capacity SSD and the price per GB to come down.



Interesting that you are having similar symptoms. Anyone else with this issue?

There's a whole history of this problem discussed in this thread -

13 inch MacBook Pro- New 500 GB drive

It refers to an on-going discussion on the Apple support forum

Sebastianmonty
15th August 2010, 07:12 PM
I am using an after market WD 500Gb Drive 5400rpm in an early 2008 MBP and seem to be suffering the same issues you are. I wonder if it is an issue with the OS and 500GB drives. It seems to pause every now and then like it is sleeping or spinning down. You then have to wait for it to spin back up. It does it at fairly regular intervals. Is there anyone with a solution for this?

In System Prefs turn off, "Put the hard disk(s) to sleep when possible".

Other than that and of course re-installing and zeroing out the disk I have no ideas other than buying the Seagate 7200rpm disks or of course an SSD.