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  1. Lustre
  2. LU-744

Single client's performance degradation on 2.1

Details

    • Bug
    • Resolution: Duplicate
    • Critical
    • None
    • Lustre 2.2.0, Lustre 2.3.0
    • None
    • 3
    • 4018

    Description

      During the performance testing on lustre-2.1, I saw the single client's performance degradation on it.
      Here is IOR results on the single cleints with 2.1 and also lustre-1.8.6.80 for comparing.
      I ran IOR (IOR -t 1m -b 32g -w -r -vv -F -o /lustre/ior.out/file) on the single client with 1, 2, 4 and 8 processes.

      Write(MiB/sec)
      v1.8.6.80 v2.1
      446.25 411.43
      808.53 761.30
      1484.18 1151.41
      1967.42 1172.06

      Read(MiB/sec)
      v1.8.6.80 v2.1
      823.90 595.71
      1449.49 1071.76
      2502.49 1517.79
      3133.43 1746.30

      Tested on same infrastracture(hardware and network). The client just turned off the checksum on both testing.

      Attachments

        1. stats-2.1.zip
          64 kB
        2. stats-1.8.zip
          14 kB
        3. orig-collectl.out
          81 kB
        4. orig-ior.out
          2 kB
        5. orig-opreport-l.out
          146 kB
        6. patched-collectl.out
          34 kB
        7. patched-ior.out
          2 kB
        8. patched-opreport-l.out
          137 kB
        9. test-patchset-2.zip
          147 kB
        10. test2-various-version.zip
          264 kB
        11. single-client-performance.xlsx
          42 kB
        12. ior-256gb.tar.gz
          32 kB
        13. ior-32gb.tar.gz
          24 kB
        14. 574.1.pdf
          169 kB
        15. lu744-20120909.tar.gz
          883 kB
        16. lu744-20120915.tar.gz
          874 kB
        17. lu744-20120915-02.tar.gz
          1.02 MB
        18. lu744-20121111.tar.gz
          849 kB
        19. lu744-dls-20121113.tar.gz
          10 kB
        20. lu744-20121113.tar.gz
          846 kB
        21. lu744-20121117.tar.gz
          2.45 MB
        22. lu744-20130104.tar.gz
          915 kB
        23. lu744-20130104-02.tar.gz
          26 kB
        24. 2.4 Single Client 3May2013.xlsx
          34 kB

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-1408 single client's performance regression test

          • Blocker - Blocks development and/or testing work, production could not run.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. LU-1413 difference of single client's performance between b2_1 and 2.1.2RC0

          • Blocker - Blocks development and/or testing work, production could not run.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. LU-3321 2.x single thread/process throughput degraded from 1.8

          • Blocker - Blocks development and/or testing work, production could not run.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. LU-141 port lustre client page cache shrinker back to clio

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. LU-1201 Lustre crypto hash cleanup

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Activity

            People

              jay Jinshan Xiong (Inactive)
              ihara Shuichi Ihara (Inactive)
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              Dates

                Created:
                Updated:
                Resolved: