Uploaded image for project: 'Hadoop Common'
  1. Hadoop Common
  2. HADOOP-7714 Umbrella for usage of native calls to manage OS cache and readahead
  3. HADOOP-7832

Using mincore to understand the effect of fadvise in the Linux page cache

    XMLWordPrintableJSON

    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Minor
    • Resolution: Done
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: io, native, performance
    • Labels:
      None

      Description

      This Jira adds a way to log the percentage of pages of a file that were on the Linux page cache (when the file is being opened) with the purpose of measuring the effect of issuing posix_fadvise (POSIX_FADV_DONTNEED) calls.

        Attachments

        1. hadoop-7714-20s-205-mincore.txt
          8 kB
          Cristina L. Abad

          Activity

            People

            • Assignee:
              cabad Cristina L. Abad
              Reporter:
              cabad Cristina L. Abad
            • Votes:
              0 Vote for this issue
              Watchers:
              13 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: