PeterM Posted January 7, 2011 Share Posted January 7, 2011 Hi, I'm wondering how to improve performance of the ssd using ubuntu. I have the ssd installed on my laptop, its old so I think its running on SATA1 so I don't expect the ssd to reach its optimal performance. Im new to using ubuntu so not sure what I can use the benchmark it properly. But From what I found out it has 140Mbs read speed and when transferring large files to a different folder of the drive it was monitoring a write speed of 25Mbs estimated 7mins to transfer a 10Gb file. Ran a test using SMART data and it has 832 bad sectors (don't know if that is a serious problem). The write speed is what I'm most concerned with. Is it simply an issue with SATA1 or has it got something to do with the way its been configured when installing linux ubuntu? Trim support? Thanks. Link to comment Share on other sites More sharing options...
NfiniteZERO Posted January 8, 2011 Share Posted January 8, 2011 Just from those numbers, I'd say that your hardware is SATA Gen 1 (150Mbps - confirmed when I took a quick look around the internet as well). ATTO Disk Bench is the tool of choice for benchmarking an SSD. Problem is, it's a Windows app. You'll have to either boot into Windows or try running it in WINE. For setting up/checking TRIM - http://askubuntu.com/questions/18903/how-to-enable-trim Quick question before I forget: Did you setup/partition the drive in Ubuntu's setup program? If you did, I don't think the drive is properly aligned. Link to comment Share on other sites More sharing options...
PeterM Posted January 8, 2011 Author Share Posted January 8, 2011 Hi, thanks for the reply. I used virtualbox to run xp and tried out Atto, that worked but not sure if results are accurate as it was running on an emulator. Atto results were reaching round 140-155mbs read speed and write speed 60-70mbs. Is that the best write speed I can get from an ssd on sata1? Didn't know I could check for trim, il be looking into that. I was following through the ubuntu installation process, had created 115GB partition and the other 5gigs was set up as swap for some reason. I also had what i think was called a master boot record installed. Is there a better way to do it? thanks. Link to comment Share on other sites More sharing options...
PeterM Posted January 10, 2011 Author Share Posted January 10, 2011 thanks for that link, I found out that trim was not enabled yet, followed the instructions and it seems to work. Did a atto benchmark again and I see an improvement in the results: read speed has gone up more than I expected, but not much improvement in write speed. Assuming its running on sata gen1 is that the best write speed it can go or should it be 150mbs? I can't see AHCI in Bios so that might be an issue... Link to comment Share on other sites More sharing options...
Synthohol Posted January 10, 2011 Share Posted January 10, 2011 have you read through this sticky? http://forum.corsair.com/v3/showthread.php?t=81492 unfortunately you cant get any linux support here BUT when Corsair opens in 3 hours you might get other advice not covered in the sticky. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted January 11, 2011 Corsair Employees Share Posted January 11, 2011 You will need to run parted magic and secure erase the drive then I would suggest you quick format the drive with 4k allocation and then install the O.S. fresh Link to comment Share on other sites More sharing options...
PeterM Posted January 12, 2011 Author Share Posted January 12, 2011 since i enabled automatic trim I tested the ssd a few days later and have now seen the write speed improve to 125-132mbs, here is the results: Assuming that its using sata1 is that the best it can go or should I run parted magic and start again? Would parted magic and secure erase sort out the bad sectors or is that a hardware issue? Thanks Link to comment Share on other sites More sharing options...
Synthohol Posted January 12, 2011 Share Posted January 12, 2011 thats got to be sata2 because the reads are over 150. i would follow RGs advice and you will likely get even better write speeds. Link to comment Share on other sites More sharing options...
PeterM Posted January 13, 2011 Author Share Posted January 13, 2011 From what I found out the laptop model cant go faster than 150mbs. So I'm thinking the results from atto seem to vary as its on an emulator. This is the results of a benchmark from ubuntu disk utility: It looks like it bottlenecks at 140mbs. This speed on sata1 seems normal to me. It doesn't let me check the write speed though because it has partitions. when i use atto to check a network folder outside of the emulator but still in the SSD, I'm getting some crazy read speeds, check this out: I'm not sure how atto on an emulator is getting those results, I hope its not gonna break the ssd... Nevertheless since I got trim working I see a general improvement in performance. Formatting the laptop is something id rather leave till later, it was hard setting up an OS i never used before. Thanks for the help Link to comment Share on other sites More sharing options...
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