Operating system and driver overhead

By: Eric L (eric.delete@this.noemail.com), July 29, 2022 3:44 am
Room: Moderated Discussions
XPoint SSDs have 5us read latency while the lowest latency NAND SSDs (Samsung Z-SSD) have 20us read latency. After the operating system and driver overhead is added to that, the read latency advantage of XPoint SSDs is surely less significant in percentage terms. Does anyone here know how much the operating system and driver add to the read latency of an SSD on Linux? I suspect XPoint SSDs are another example of Intel providing amazing hardware but not bothering with the software needed to make it shine.
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TopicPosted ByDate
RIP Optane/XPointWes Felter2022/07/28 07:53 PM
  RIP Optane/XPointRayla2022/07/28 08:28 PM
  RIP Optane/XPointDoug S2022/07/28 09:00 PM
    RIP Optane/XPointNoSpammer2022/07/29 01:50 AM
    NVDIMM-NEric L2022/07/29 03:36 AM
    RIP Optane/XPointMichael S2022/07/29 04:02 AM
      RIP Optane/XPointDoug S2022/07/29 10:40 AM
        RIP Optane/XPointDoug S2022/07/29 10:43 AM
          RIP Optane/XPointLinus Torvalds2022/07/29 11:20 AM
            RIP Optane/XPointDavid Hess2022/07/29 08:59 PM
              RIP Optane/XPointDavid Hess2022/07/30 03:44 PM
                RIP Optane/XPointDoug S2022/07/30 10:43 PM
                  RIP Optane/XPointrwessel2022/07/31 05:33 AM
                  RIP Optane/XPointKonrad Schwarz2022/08/02 08:06 AM
                  RIP Optane/XPointDavid Hess2022/08/02 10:24 PM
                    RIP Optane/XPointDavid Hess2022/08/02 10:26 PM
                    RIP Optane/XPointAdrian2022/08/03 01:19 AM
        RIP Optane/XPointanonymou52022/07/29 12:50 PM
    RIP Optane/XPointGionatan Danti2022/07/29 09:09 AM
    RIP Optane/XPointMark Roulo2022/07/29 10:02 AM
      RIP Optane/XPointdmcq2022/07/30 03:42 AM
      RIP Optane/XPointanon32022/07/31 10:19 PM
        RIP Optane/XPointanon22022/07/31 10:55 PM
          RIP Optane/XPointDoug S2022/08/01 08:37 AM
            RIP Optane/XPointGionatan Danti2022/08/01 01:33 PM
              RIP Optane/XPointNoSpammer2022/08/02 03:50 AM
                RIP Optane/XPointDoug S2022/08/02 09:24 AM
                  RIP Optane/XPointGionatan Danti2022/08/02 10:34 AM
                  RIP Optane/XPoint---2022/08/02 10:39 AM
            RIP Optane/XPointDavid Hess2022/08/03 03:48 AM
              RIP Optane/XPointMichael S2022/08/03 06:04 AM
                RIP Optane/XPointDavid Hess2022/08/03 08:56 AM
        RIP Optane/XPointAdrian2022/08/01 02:15 AM
          RIP Optane/XPointGionatan Danti2022/08/01 06:07 AM
            Losses vs not profitable enoughMark Roulo2022/08/01 10:15 AM
              Losses vs not profitable enoughdmcq2022/08/01 11:50 AM
                Losses vs not profitable enoughGionatan Danti2022/08/01 12:34 PM
            RIP Optane/XPointMichael S2022/08/01 02:47 PM
              RIP Optane/XPointAnon2022/08/01 03:09 PM
                RIP Optane/XPointMichael S2022/08/01 03:32 PM
      RIP Optane/XPointGroo2022/08/01 12:28 PM
        RIP Optane/XPointanon32022/08/01 10:33 PM
          RIP Optane/XPointGroo2022/08/03 11:15 AM
            RIP Optane/XPoint---2022/08/03 03:05 PM
    LatencyDavid Kanter2022/07/29 06:35 PM
  Operating system and driver overheadEric L2022/07/29 03:44 AM
    Operating system and driver overheadLinus Torvalds2022/07/29 10:45 AM
  altrernatives?Michael S2022/07/29 05:17 AM
    altrernatives?Rayla2022/07/29 06:49 AM
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