[Bugs] [Bug 1251467] ec sequentializes all reads, limiting read throughtput

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1251467



--- Comment #5 from Vijay Bellur <vbellur at redhat.com> ---
COMMIT: http://review.gluster.org/12447 committed in release-3.7 by Pranith
Kumar Karampuri (pkarampu at redhat.com) 
------
commit 69e74432ee1ab29ba7caf483450997a95920b729
Author: Xavier Hernandez <xhernandez at datalab.es>
Date:   Wed Jul 22 17:08:02 2015 +0200

    cluster/ec: Allow read fops to be processed in parallel

    Currently ec only sends a single read request at a time for a given
    inode. Since reads do not interfere between them, this patch allows
    multiple concurrent read requests to be sent in parallel.

    This is a backport of these patches:

    > Change-Id: If853430482a71767823f39ea70ff89797019d46b
    > BUG: 1245689
    > Signed-off-by: Xavier Hernandez <xhernandez at datalab.es>
    > Reviewed-on: http://review.gluster.org/11742
    > Tested-by: NetBSD Build System <jenkins at build.gluster.org>
    > Reviewed-by: Pranith Kumar Karampuri <pkarampu at redhat.com>
    > Tested-by: Gluster Build System <jenkins at build.gluster.com>
    >
    > Change-Id: I6042129f09082497b80782b5704a52c35c78f44d
    > BUG: 1276031
    > Signed-off-by: Xavier Hernandez <xhernandez at datalab.es>

    Change-Id: I1b1146d1fd1828b12bfc566cd76e5ea110f8909b
    BUG: 1251467
    Signed-off-by: Xavier Hernandez <xhernandez at datalab.es>
    Reviewed-on: http://review.gluster.org/12447
    Tested-by: Gluster Build System <jenkins at build.gluster.com>
    Tested-by: NetBSD Build System <jenkins at build.gluster.org>
    Reviewed-by: Pranith Kumar Karampuri <pkarampu at redhat.com>

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