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  1. Percona Server for MySQL
  2. PS-1414

LP #1219842: buf_LRU_buf_pool_running_out() does not need to lock any mutexes

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    Details

    • Type: Bug
    • Status: Done
    • Priority: High
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None

      Description

      **Reported in Launchpad by Laurynas Biveinis last update 20-09-2013 06:27:00

      This is to track fixing of http://bugs.mysql.com/bug.php?id=69258 for Percona Server.

      buf_LRU_buf_pool_running_out() acquires buffer pool mutex in upstream, and LRU/free list mutexes in XtraDB. This is not really required, because the function compares the sum of LRU and free list lens with 1/4 of buffer pool size for heuristic purposes. Dirty reads are OK for this.

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            Reporter:
            lpjirasync lpjirasync (Inactive)
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