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  1. Lustre
  2. LU-6179

Lock ahead - Request extent locks from userspace

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    • Icon: New Feature New Feature
    • Resolution: Fixed
    • Icon: Major Major
    • Lustre 2.11.0
    • None
    • 17290

      At the recent developers conference, Jinshan proposed a different method of approaching the performance problems described in LU-6148.

      Instead of introducing a new type of LDLM lock matching, we'd like to make it possible for user space to explicitly request LDLM locks asynchronously from the IO.

      I've implemented a prototype version of the feature and will be uploading it for comments. I'll explain the state of the current version in a comment momentarily.

        1. anl_mpich_build_guide.txt
          18 kB
        2. cug paper.pdf
          714 kB
        3. lockahead_ladvise_mpich_patch
          30 kB
        4. LockAheadResults.docx
          516 kB
        5. LockAhead-TestReport.txt
          1.36 MB
        6. LUSTRE-LockAhead-140417-1056-170.pdf
          64 kB
        7. mmoore cug slides.pdf
          1.15 MB
        8. sle11_build_tools.tar.gz
          2.48 MB

            paf Patrick Farrell (Inactive)
            paf Patrick Farrell (Inactive)
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              Created:
              Updated:
              Resolved: