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  1. Lustre
  2. LU-14305

add persistent tuning for mb_c3_threshold

Details

    • Improvement
    • Resolution: Fixed
    • Minor
    • Lustre 2.15.0
    • None
    • 9223372036854775807

    Description

      Allow the ldiskfs mb_c[123]_threshold parameters to be set persistently. Currently, they are only in /sys/fs/ldiskfs/<dev>/mb_c[123]_threshold and are not configurable via "lctl set_param", sysctl, or other (known to me) tuning mechanism.

      While the upstream ext4 developers seem to frown upon mount options, this does provide a mechanism (via /etc/fstab and/or tune2fs -E mount_opts=<opts>) for setting filesystems parameters permanently on a per-filesystem basis.

      Attachments

        Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. LU-12103 Improve block allocation for large partitions

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. LU-14438 backport ldiskfs mballoc patches

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

          Activity

            [LU-14305] add persistent tuning for mb_c3_threshold
            adilger Andreas Dilger made changes -
            Link New: This issue is related to EX-6069 [ EX-6069 ]
            gerrit Gerrit Updater added a comment -

            "Etienne AUJAMES <eaujames@ddn.com>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/52744
            Subject: LU-14305 ldiskfs: add parameters for mb_c123_threshold
            Project: fs/lustre-release
            Branch: b2_12
            Current Patch Set: 1
            Commit: cbb6baaf60d7cb6022933f609f93e8806048a054

            gerrit Gerrit Updater added a comment - "Etienne AUJAMES <eaujames@ddn.com>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/52744 Subject: LU-14305 ldiskfs: add parameters for mb_c123_threshold Project: fs/lustre-release Branch: b2_12 Current Patch Set: 1 Commit: cbb6baaf60d7cb6022933f609f93e8806048a054
            cfaber Colin Faber made changes -
            Link New: This issue is related to DDN-3678 [ DDN-3678 ]
            ablagodarenko Artem Blagodarenko made changes -
            Link New: This issue is related to EX-5753 [ EX-5753 ]
            ablagodarenko Artem Blagodarenko made changes -
            Link New: This issue is related to DDN-3095 [ DDN-3095 ]
            pjones Peter Jones made changes -
            Link Original: This issue is related to JFC-10 [ JFC-10 ]
            pjones Peter Jones made changes -
            Link New: This issue is related to JFC-20 [ JFC-20 ]
            pjones Peter Jones made changes -
            Fix Version/s New: Lustre 2.15.0 [ 14791 ]
            Assignee Original: WC Triage [ wc-triage ] New: Andreas Dilger [ adilger ]
            Resolution New: Fixed [ 1 ]
            Status Original: Open [ 1 ] New: Resolved [ 5 ]
            pjones Peter Jones added a comment -

            Landed for 2.15

            pjones Peter Jones added a comment - Landed for 2.15
            gerrit Gerrit Updater added a comment -

            Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/41193/
            Subject: LU-14305 ldiskfs: add parameters for mb_c123_threshold
            Project: fs/lustre-release
            Branch: master
            Current Patch Set:
            Commit: c2fd5297b46c4973aeda4d4d02cbc7ca2faa0d50

            gerrit Gerrit Updater added a comment - Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/41193/ Subject: LU-14305 ldiskfs: add parameters for mb_c123_threshold Project: fs/lustre-release Branch: master Current Patch Set: Commit: c2fd5297b46c4973aeda4d4d02cbc7ca2faa0d50

            People

              adilger Andreas Dilger
              adilger Andreas Dilger
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              Dates

                Created:
                Updated:
                Resolved: