Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/22792

Log:
commit 660f83709cf86a640cdd4795fb436c7c27b3b915
Author: Jian Zhang <jian.zhang at intel.com>
Date:   Sun Feb 24 00:02:32 2013 -0800

    Added per disk PUT timing monitoring support.
    
    Fixes bug 1104708
    
    There could be severe performance drop for swift is one disk of one
    storage node is problematic due to the tragic state of async disk I/O.
    
    This patch provided PUT timing per KB transfered (ms/KB) monitoring
    support of each disk and report to statsD for alert.
    -adding "object-server.PUT.<device>.timing" metrics for object-server.
    
    DocImpact.
    
    Change-Id: Ie94bddad28e8be52e71683bf6c9db988664abe47