Intel 320 Series 080Gb SSD Low speed

[idata]

Good afternoon. I installed this drive into your laptop Lenovo B560 and saw much reduced rate. Install all the drivers from the official site. AHCI mode is enabled. Tested the drive program CrystalDiskMark and saw the following results

seq read 218mb/s seq write 94mb/s 4K read 15mb/s 4K write 23mb/s After installing the drive in a desktop computer has the following results seq read 272mb/s seq write 96mb/s 4K read 30mb/s 4K write 63mb/s What could be the reason for this slowing down? Thank you. PS. Sorry for my English.

[idata]

Today, booted in safe mode (laptop) and found the following results

seq read 268 seq write 98 4K read 26 4K write 58 The problem in the drivers? I tried the last 2 versions of Intel RST, but to no avail. I uninstalled and reinstalled all the drivers from Intel, but the expected result is not found. After disabling the majority of Windows speed in normal mode and not increased. I think that is the problem of drivers or other software.

[idata]

'SAFE Mode' on my Lenovo X201i netbook: Intel Core i3-M330-2.13Ghz, 4GB memory, 320 SSD 80GB (firmware 4PC10362),

Intel 5 series 6 SATA AHCI enabled, latest Lenovo and W7-32bit SW/drivers installed: CrystalDiskMark3.01b shows:

4k reads -> 14.9MB/s ('Normal mode') --> 18.2MB/s ('Safe mode', no network)

4K writes -> 23.2MB/s ('Normal mode') --> 34.2MB/s ('Safe mode', no network)

Could it be that in 'Safe mode' there is more cpu power available for CristalDiskMark3.01b than in 'Normal mode'?

[idata]

Here are the times that I am seeing in safe mode (with networking):

http://dl.dropbox.com/u/35370420/as-ssd-bench%20INTEL%20SSDSA2CW60%208.27.2011%209-32-3.png http://dl.dropbox.com/u/35370420/as-ssd-bench%20INTEL%20SSDSA2CW60%208.27.2011%209-32-3.png

Normal mode(4k):

Read: 12.80MB/s

Write: 19.25MB/s

Safe mode (4k):

Read: 17.02MB/s

Write: 26.64MB/s

The speed that I am seeing is even worse than yours, but to get a better speed in safe mode is kind of counter-intuitive.

I would really like to know wtf is going on. I am using the intel drivers and I didn't upgrade to the latest firmware.

[idata]

What kind of processor does your "macbook pro 2011" have?

I am wondering if processing capacity is limiting the amount of 4K non overlapped/non queued Read/Write I/O operations that could be generated.

I think this 4K single R/W part of the CristalDiskMark3.01b benchmark is mainly a single thread task.

My Intel i3-M330-2.13Ghz processor has 2 physical engines with hyper-threading and so 2x2=4 processing threads.

During the non-overlapped 4K R/W benchmark run the W7 Task Manager shows a processor load of 23-30%.

IMHO this means that out of the 4 processor threads one thread is fully utilized and cannot do more work.

[idata]

What kind of processor does your "macbook pro 2011" have?

Processor Intel(R) Core(TM) i7-2720QM CPU @ 2.20GHz, 2201 Mhz, 4 Core(s), 8 Logical Processor(s)