1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

News Researchers boost SSD read speeds

Discussion in 'Article Discussion' started by Gareth Halfacree, 30 Sep 2014.

  1. Gareth Halfacree

    Gareth Halfacree WIIGII! Staff Administrator Super Moderator Moderator

    Joined:
    4 Dec 2007
    Posts:
    11,508
    Likes Received:
    1,335
  2. David

    David RIP Tel

    Joined:
    7 Apr 2009
    Posts:
    12,856
    Likes Received:
    1,987
    I wonder how much is "considerably" - 2:6 suggests tripling the read performance. The SATA3 bus will saturate at 750MB/s, won't it?

    SSDs are already hitting 550MB/s.
     
  3. mclean007

    mclean007 Officious Bystander

    Joined:
    22 May 2003
    Posts:
    2,035
    Likes Received:
    15
    Isn't 2:6 the same as 1:3? And it's odd to show the ratio that way - surely the improvement is 3:1, rather than 1:3?
     
  4. David

    David RIP Tel

    Joined:
    7 Apr 2009
    Posts:
    12,856
    Likes Received:
    1,987
    An improvement of a third would take modern drive almost to the limit of SATA3.
     
  5. schmidtbag

    schmidtbag New Member

    Joined:
    30 Jul 2010
    Posts:
    1,082
    Likes Received:
    10
    750MB/s is theoretical maximum speed, but probably a speed that can never be achieved, realistically. Also, 550MB/s for read speeds on current SSDs is under the most optimal conditions possible. From what I noticed, the average SSD in most real-world environments runs at around 60% it's advertised speed.

    So, I guess when they say "considerably", it probably means that on average, your SSD runs closer to its advertised speed and probably won't ever exceed it. Think about it like this - if a SSD can reach 550MB/s, the following conditions probably apply:
    * You're writing a big block of consistent data (like all 0s)
    * The disk is brand new and completely formatted
    * There are no errors during the error check
    * The SATA controller is not a bottleneck
    * The filesystem itself is not a bottleneck

    So considering the average person:
    * Has more exciting data than just zeroes
    * Doesn't consistently format their disks
    * WILL have errors during read/write
    * Likely doesn't have the world's best SATA controller
    * Is probably using NTFS
    performance never reaches it's maximum. But if this research group can knock out the error check problem, that's a great start.
     
  6. Star*Dagger

    Star*Dagger New Member

    Joined:
    30 Nov 2007
    Posts:
    882
    Likes Received:
    11
    If you are not running your OS on an SSD you do not know what you are doing.
     
  7. schmidtbag

    schmidtbag New Member

    Joined:
    30 Jul 2010
    Posts:
    1,082
    Likes Received:
    10
    Not sure if you're referring to me, but in case you are:
    My desktop has 2 SSDs (one for linux, one for windows) and my laptop has a SSD. TRIM is enabled, firmware is fully updated, no paging/swap, no indexing, no prefetching, no hibernation, no defrag, all 3 drives on SATAIII, first block starts on n^2 byte, formatted in either NTFS or ext4, etc. My drives are about as optimized as you can get.
     
  8. Star*Dagger

    Star*Dagger New Member

    Joined:
    30 Nov 2007
    Posts:
    882
    Likes Received:
    11
    That was not directed at you in any way, a general statement to PC Gamers.
     
  9. schmidtbag

    schmidtbag New Member

    Joined:
    30 Jul 2010
    Posts:
    1,082
    Likes Received:
    10
    Ah ok. Well, I partially posted what I said to inform others how to get an optimal SSD setup. I may have forgot a few things here and there. Windows in general is a real PITA when it comes to SSDs. In linux you basically just edit /etc/fstab, add the word "discard" to the options of the SSD's device listing, reboot, and you're all done.
     
  10. littlepuppi

    littlepuppi Currently playing MWO and loving it

    Joined:
    26 Apr 2009
    Posts:
    3,213
    Likes Received:
    141
    If their fractions are anything to go by they need to work on those before they start letting rip on ssd wear levelling..
     

Share This Page