Uploaded image for project: 'MariaDB Server'
  1. MariaDB Server
  2. MDEV-5755

Scalability: let LOCK_open and THR_LOCK::mutex be normal mutexes

    XMLWordPrintable

Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Won't Fix
    • 10.0.8
    • N/A
    • OTHER
    • None
    • 10.1.7-1

    Description

      According to my benchmarks, normal mutexes scale better than adaptive at high thread count. At low thread count they behave similarly.

      LOCK_open and THR_LOCK::mutex are the hot-path mutexes and thus are mostly affected.

      See also:
      http://svoj-db.blogspot.ru/2014/02/mariadb-mutexes-scalability.html
      http://svoj-db.blogspot.ru/2014/02/mariadb-mutexes-scalability-continued.html

      Attachments

        Activity

          People

            svoj Sergey Vojtovich
            svoj Sergey Vojtovich
            Votes:
            0 Vote for this issue
            Watchers:
            5 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:

              Git Integration

                Error rendering 'com.xiplink.jira.git.jira_git_plugin:git-issue-webpanel'. Please contact your Jira administrators.