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  1. Lustre
  2. LU-13258

Bind linux workqueues to specific core

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Details

    • Improvement
    • Status: Resolved
    • Minor
    • Resolution: Fixed
    • Lustre 2.14.0
    • Lustre 2.14.0
    • None
    • 9223372036854775807

    Description

      Recently Lustre has moved to using work queue but the trade off is that the work queues can run on any core. This will introduce noise which on clients means it has an performance impact on users application runs. The linux kernel offers a way to make binding to specific core possible with the function apply_workqueue_attrs() which can be passed a cpumask.

       

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          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-12748 parallel readahead needs to be optimized at high number of process

          • 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-9441 Use kernel threads in predictable fashion to confine OS noise

          • Major - Major loss of function.
          • Resolved
          is related to

          Improvement - An improvement or enhancement to an existing feature or task. LU-9859 libcfs simplification

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

          Improvement - An improvement or enhancement to an existing feature or task. LU-12043 improve Lustre single thread read performances

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

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              simmonsja James A Simmons
              simmonsja James A Simmons
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              Dates

                Created:
                Updated:
                Resolved: