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Strange SSD performance
Yesterday I bought a new Intel X25-V 40GB SSD drive. I first tested it in a
running system, Windows 7 was installed on a 500 GB HDD. I used HDTach and the performance was superb. http://www.imagesforme.com/show.php/1102832_New.jpg I then installed Windows 7 on SSD. I disabled Windows Search, Superfetch, Indexing, System Restore and Windows Pagefile. TRIM function is working properly. The performence in HDTach is a lot lower in areas where data is stored. http://www.imagesforme.com/show.php/1102833_Used.jpg I don't think it has anything to do with a typical speed degradation, it is too soon and TRIM is working. After all this is brand new Windows 7 on a brand new drive. Could it be an issue with HDTach? My system: Core2Duo E6750 ASUS G31 + ICH7 board 4GB DDR2-800 RAM WD 500GB SATA2 Intel X25-V (system) -- Ivica |
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Strange SSD performance
Ivica wrote:
Yesterday I bought a new Intel X25-V 40GB SSD drive. I first tested it in a running system, Windows 7 was installed on a 500 GB HDD. I used HDTach and the performance was superb. http://www.imagesforme.com/show.php/1102832_New.jpg I then installed Windows 7 on SSD. I disabled Windows Search, Superfetch, Indexing, System Restore and Windows Pagefile. TRIM function is working properly. The performence in HDTach is a lot lower in areas where data is stored. http://www.imagesforme.com/show.php/1102833_Used.jpg I don't think it has anything to do with a typical speed degradation, it is too soon and TRIM is working. After all this is brand new Windows 7 on a brand new drive. Could it be an issue with HDTach? My system: Core2Duo E6750 ASUS G31 + ICH7 board 4GB DDR2-800 RAM WD 500GB SATA2 Intel X25-V (system) I've always found that I could trust HDtach, but I've never used it on a SSD. So, just to double-check, you could try a couple of others: 1.HDtune has a benchmark that runs just like HDtach, and displays a similar performance graph. I've found the data reported to be consistently slightly different from HDtach, but close enough for a reasonable check on what HDtach shows for your SSD. 2.HDDscan will also run and show a performance graph, but the GUI (at least for the v3.2 copy that I'm using) is not obvious. First, you need to click on the (magnifier?) icon in the primary window and then click on SurfaceTests to get the TestSelection window to appear. Next, you need to expand the TestSelection window to the right to make the AddTest button appear. Click on AddTest and wait for the TestManager window to show that the RD-Read test is finished. Finally, double-click on the RD-Read entry in the TestManager window to make the performance graph appear. And, if you have the paid-for version of HDtach, it would be interesting to see what the write performance of that SSD is. Do not, of course, run HDtach's write test on the SSD that has the OS on it; come to think of it, it might be interesting to watch Win7 eat its entrails. =-O -- Cheers, Bob |
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