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Concerned about M4 performance after upgrade

post #1 of 4
Thread Starter 
Hi,

I was previously running my M4 in an AMD system. Just moved over to Intel, installed all drivers etc, and I'm very concerned about the performance reduction I seem to have:

AMD:

Seq: 496.94 read, 104.19 write
4k: 23.40 read, 62.11 write
4k-64Thrd: 242.96 read, 95.57 write
Acc. Time: 0.097 read, 0.270 write

Total: 631

Intel:

Seq: 490.62 read, 104.32 write
4k: 24.47 read, 58.71 write
4k-64Thrd: 132.5 read, 77.98 write
Acc. Time: 0.102 read, 0.372 write

Total: 449

Aside from obviously now running on an Intel controller, only difference was firmware version (AMD benchmark was run with 0009 firmware, Intel was run with 000F firmware).

What could be causing the reduction in performance, especially the much poorer 4k-64thrd performance? (I did a secure erase on the drive prior to installing Windows)

EDIT: Read somewhere that C-States could slow it down and should be disabled in the BIOS?

EDIT2: It's not C-States, this makes no difference on or off. as-ssd-bench M4-CT064 M4SSD2 26.10.2011 20-27-37.png 38k .png file as-ssd-bench M4-CT064M4SSD2 06.05.2012 15-39-53.png 38k .png file
Edited by iSeries - 5/6/12 at 10:03am
Alpha II
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Alpha II
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post #2 of 4
Connect to a Intel SATA socket and try Intel® Rapid Storage Technology:
http://www.intel.com/p/en_US/support/highlights/chpsts/imsm

If that doesn't improve it then I recommend that you lookup Sean's optimization guides:
Sean's Windows 7 Install & Optimization Guide:
http://www.overclock.net/t/1156654/seans-windows-7-install-optimization-guide-for-ssds-hdds
Sean's Windows 8 Install & Optimization Guide:
http://www.overclock.net/t/1240779/seans-windows-8-install-optimization-guide-for-ssds-hdds

Try doing benchmarks on SSD; when it is not being used or as an operating system.
As you can see here my M4 dropped in performance with new firmware 000F:

504335
Edited by tumbirs - 5/7/12 at 2:30pm
post #3 of 4
Quote:
Originally Posted by tumbirs View Post

Connect to a Intel SATA socket and try Intel® Rapid Storage Technology:
http://www.intel.com/p/en_US/support/highlights/chpsts/imsm
If that doesn't improve it then I recommend that you lookup Sean's optimization guides:
Sean's Windows 7 Install & Optimization Guide:
http://www.overclock.net/t/1156654/seans-windows-7-install-optimization-guide-for-ssds-hdds
Sean's Windows 8 Install & Optimization Guide:
http://www.overclock.net/t/1240779/seans-windows-8-install-optimization-guide-for-ssds-hdds
Try doing benchmarks on SSD; when it is not being used or as an operating system.
As you can see here my M4 dropped in performance with new firmware 000F:
504335

Are you sure you can attribute that to the firmware?

My benchmarks fluctuate up and down every time I run it.
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exime
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post #4 of 4
I've not tested 64GB. I haven't found much information about the differences in stabilities for M4 SSDs (unless it is faulty under warranty?).
I can improve SATA speeds by using Intel SATA socket with Intel RST software (with TRIM support) and Marvell SATA socket is slower (with no TRIM support).

SSD speed maybe affected by a variety of factors like: SSD firmware & controller. SATA power & cable, SATA300 or SATA600 socket, AHCI I/O Controller (like ICH10), updated intel Chipsets drivers for H67/P67/Z68/Z77 with updated Intel RST (improves SATA), check if TRIM is working and stable configurations for bios.

Microsoft techs mentioned that super fetch, defragment services is not required to be disabled as it is automatically disabled for SSD by windows 7 and helps HDD. System restore, pagefile, hibernate, timestamp, recycle bin and Indexing can be unticked for SSD but not recommend disabling services that help HDD.

SSD with OS installed does reduce benchmark scores as some of it's resources are being used by processes and services.
(I have 2 PCs, I usually take out SSD with OS and place it in the other PC to test it.)

I might need to test which overclock settings effects SDD speeds in few days time unless there are some information I can search out in the forums.
Currently these settings effect SSD:
Bus speeds, ram latency, ram speed, c states, speedstep, turbo boost, achi.
After firmware update, clear cmos or load bios defaults, reboot and reconfigure bios, etc.
Edited by tumbirs - 5/7/12 at 11:14pm
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