Uploaded image for project: 'ZABBIX FEATURE REQUESTS'
  1. ZABBIX FEATURE REQUESTS
  2. ZBXNEXT-4577

Convert configuration cache mutexes to read/write locks

    XMLWordPrintable

    Details

    • Team:
      Team A
    • Sprint:
      Sprint 25, Sprint 26, Sprint 27, Sprint 28, Sprint 29, Sprint 30, Sprint 31, Sprint 32, Sprint 33, Sprint 34, Sprint 35, Sprint 36
    • Story Points:
      5

      Description

      Zabbix does a lot of read only requests to configuration cache. By replacing configuration cache mutex with read/write lock we could parallelize such requests.

      Preliminary tests showed around 60% data processing maximum throughput increase when configuration cache mutex was replaced with pthread based read/write lock.

      We need to re-evaluate the implementation complexity and test results with on the latest trunk version and decide if we move forward with it.

      There are few thoughts to consider:

      • dependency on pthread library
      • while pthread supports shared memory based read/write locks it might not be supported on all platforms. In this case we should fall back to mutexes.
      • replacing semaphore based mutexes with pthread mutexes using futexes would give small performance boost even without read/write locks.

        Attachments

          Issue Links

            Activity

              People

              Assignee:
              vso Vladislavs Sokurenko
              Reporter:
              wiper Andris Zeila
              Votes:
              0 Vote for this issue
              Watchers:
              5 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved: