Re: Increase or performance tune READ perf for glusterfs distributed volume

Karan Sandha <ksandha@xxxxxxxxxx> · Wed, 8 Mar 2017 16:18:00 +0530



    Hi Deepak, 

    
    Are you reading a small file data-set or large files data-set and
      secondly, volume is mounted using which protocol?

    
    for small files data-set :-
    
      
gluster volume set vol-name cluster.lookup-optimize on (default=off)

        gluster volume set vol-name server.event-threads 4 (default=2)
        gluster volume set vol-name client.event-threads 4 (default=2)
      
    and do a re-balance on the volume and then check the performance,
      we generally see a performance bump up when we turn these
      parameter on.
    Thanks & regards
    Karan Sandha

    
    On 03/08/2017 02:21 AM, Deepak Naidu
      wrote:

    
        Is there are any tuning param for READ,  I
          need to set to get maximum throughput on glusterfs distributed
          volume read performance. Currently, I am trying to compare
          this with my local SSD Disk performance.
         
        ·        
              My local SSD(/dev/sdb)
          can random read 6.3TB in 56 minutes on XFS filesystem.
        ·        
              I have 2x node
          distributed glusterfs volume. When I read the same workload,
          it takes around 63 minutes.  
        ·        
              Network is IPoIB using
          RDMA. Infiniband network is 1x 100 Gb/sec (4X EDR)
         
        Any suggestion is appreciated.
         
        --
        Deepak
      
      
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