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  • Linux Solid-State Drive Benchmarks

    Phoronix: Linux Solid-State Drive Benchmarks

    With the number of netbooks on the market continuing to increase each month and more of these mobile devices switching to solid-state drives for their reliability, extended battery life, and faster performance, SSDs are becoming quite common and finding themselves meeting many Linux hosts. How though does the real-world performance differ between hard disk drives and solid-state drives on Linux? We have run several tests atop Ubuntu on a Samsung netbook with a HDD and SSD. In addition, we have also looked at the encryption performance using both types of drives.

    http://www.phoronix.com/vr.php?view=13338

  • #2
    With OpenSolaris maturing nicely, I would love to see some SSD and ZFS benchmarks. I think, among other things, the ability to set the recordsize of the ZFS system to match the native block size of a SSD will give ZFS a major advantage over other file systems using SSD.

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    • #3
      Once btrfs is stablilised and more SSD benchmarks are run at phoronix, it'd be nice to see a CF/IDE thrown in the mix.

      Most SSDs these days are being manufactured for SATA capability.

      For someone who doesn't have SATA or even a PCI slot to add in SATA, this is a good way to add SSD in an inexpensive way.

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      • #4
        Were the SSD benchmarks run with NOOP schedular? Simplify switching to that gave me a 25% improvement in read/write speeds on my Ritek 32gb.

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        • #5
          For anyone interested, here's related benchmarks done on acer aspire one (it has samsungs pata ssd) with several filesystems.
          http://dismantle-it.blogspot.com/200...k-on-acer.html

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          • #6
            1. The OCZ SSD is known to be slow when running under AHCI
            2. Random Writes are slow on most MLC SSD (the Intel is the only one I know of where this is not the case)

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            • #7
              Your tests don't whos off SDD'd force

              I'm sorry but all your tests target transfer rates, as opposed to seek time. EVen the Sqlite insert benchmark; you should have at least benchmarked multi-table swipe selects, with a DB size > RAM.

              Hard Disk Drives have excellent transfer rates, and it's almost never been a problem in itself; seek times is what you spend the most time waiting for.

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              • #8
                Thanks!

                Very interesting!

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                • #9
                  Too many CPU-intensive tasks, not enough latency testing

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                  • #10
                    Yeah I think the dealbreaker with SSD is latency. You can see it clearly on the sqlite benchmark: it does a lot random short writes, and the SSD totally tanks.

                    I'm not convinced by most MLC SSD's out there (except the intel one) until they at least equal hard drives on latency. Honestly, I'd trade a bit of top speed for less latency every day of the week.

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                    • #11
                      The OCZ Vertex SSD also has a better controller and cache which makes her the second usable MLC SSD together with the Intel one. A lot more will follow this year form Samsung and other big companies.

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                      • #12
                        Compilation on a fast CPU

                        Clearly the speed bottleneck is the cpu in the compilation tests, would be nice to see what happens when using something like a 3.0 GHz Core 2 Duo or equivalent.

                        Features we get with SSD's are nice, but most people won't buy them because of the high price. I for one would consider a small SSD (32GB) for my root partition to speed up my compiles, but first I need phoronix to test it

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                        • #13
                          Originally posted by mycroes View Post
                          Clearly the speed bottleneck is the cpu in the compilation tests, would be nice to see what happens when using something like a 3.0 GHz Core 2 Duo or equivalent.

                          Features we get with SSD's are nice, but most people won't buy them because of the high price. I for one would consider a small SSD (32GB) for my root partition to speed up my compiles, but first I need phoronix to test it

                          You could have a quadcore running 6 Ghz and still have the CPU be the bottleneck on compilation times. You will be hard pressed to find hd i/o being the limiting factor in compilation.

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                          • #14
                            I have a laptop with a Samsung 128 GB MLC SSD. While the OCZ drives are known to be a little on the slower (and cheaper) side, the Samsung is quite fast.

                            In fact it feels like a different class altogether.
                            Firefox f.e. starts in about the same time cold and warm. Linux boots in around 12secs. (So this shows good read performance)

                            My database tests (Postgres and MySQL) indicate that DB write performance is also vastly superior to my (admittedly older) spinning disk drive.

                            I realize that these tests are entirely unscientific.

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                            • #15
                              Thank goodness! I'm glad to see someone finally doing some benchmark reviews of the ssd vs sata on the netbooks. I found a few things, but nothing definititive. I spent about 4 hours going around and around deciding between the asus 1000 40G and a wind with 160gb sata. I went with the Wind to get the 6-cell battery and overclocking features. I still think the price-performance-size comparison greatly favors a normal sata drive over ssd. Maybe in 6 months to a year, it'll be time to switch, but I don't think so yet.

                              I was also very interested in the Acer benchmark review showing the performance of ext4. I might have to try that out...

                              I'll have my own benchmarks up soon comparing the wind at difference speeds and file systems, and my asus m51.

                              I really wonder if different block sizes would make a difference on the ssd drives.

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