Uploaded image for project: 'MariaDB Server'
  1. MariaDB Server
  2. MDEV-12383

Aria Pagecache reads and writes to/from disk reference pages vs blocks

    XMLWordPrintable

Details

    Description

      Hi,

      While reviewing the Aria System Variables, for pagecache_reads the count references pages read from disk, whereas pagecache_writes references blocks written to disk. Is this accurate? I would have expected them both to reference the same structure when communicating with the disk subsystem.

      Aria_pagecache_reads
      Description: The number of Aria page cache read requests that caused a page to be read from the disk.

      ...

      Aria_pagecache_writes
      Description: The number of blocks written to disk from the Aria page cache.

      I'm sorry if I selected the incorrect project or if there's an alternate way to solicit changes to the Documentation, it wasn't clear to me where to make DOC specific reports.

      https://mariadb.com/kb/en/mariadb/aria-server-status-variables/#aria_pagecache_reads
      https://mariadb.com/kb/en/mariadb/aria-server-status-variables/#aria_pagecache_writes

      Attachments

        Activity

          People

            greenman Ian Gilfillan
            michaelc Michael Coburn
            Votes:
            0 Vote for this issue
            Watchers:
            2 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.