13.2.7. Viewing List of Write Performance

You can view list of write throughput of files on each brick or nfs server. If brick name is not specified, then the metrics of all the bricks belonging to that volume will be displayed. The output will be the write throughput.
This command will initiate a write for the specified count and block size and measures the corresponding throughput directly on back-end export (bypassing glusterFS processes). To view list of write performance on each brick:
  • View list of write performance on each brick using the following command:
    # gluster volume top VOLNAME write-perf [bs blk-size count count] [nfs | brick BRICK-NAME] [list-cnt cnt]
    For example, to view write performance on brick server:/export/ of test-volume, 256 block size of count 1, and list count 10:
    # gluster volume top test-volume write-perf bs 256 count 1 brick server:/export/ list-cnt 10
    Brick: server:/export/dir1
    256 bytes (256 B) copied, Throughput: 2.8 MB/s
    # gluster volume top test-volume write-perf bs 256 count 1 brick server:/export/ list-cnt 10
    Brick: server:/export/dir1 256 bytes (256 B) copied, Throughput: 2.8 MB/s
           ==========Write throughput file stats========
    
    write                filename                 Time
    throughput
    (MBps)
     
    1170.00    /clients/client0/~dmtmp/SEED/     -2012-05-09
               SMALL.FIL                     15:39:09.171494
    
    1008.00    /clients/client6/~dmtmp/SEED/     -2012-05-09
               LARGE.FIL                      15:39:09.73189
    
    949.00    /clients/client0/~dmtmp/SEED/      -2012-05-09
              MEDIUM.FIL                     15:38:36.927426
    
    936.00   /clients/client0/~dmtmp/SEED/       -2012-05-09
             LARGE.FIL                        15:38:36.933177    
    897.00   /clients/client5/~dmtmp/SEED/       -2012-05-09
             MEDIUM.FIL                       15:39:09.33628
    
    897.00   /clients/client6/~dmtmp/SEED/       -2012-05-09
             MEDIUM.FIL                       15:39:09.27713
    
    885.00   /clients/client0/~dmtmp/SEED/       -2012-05-09
              SMALL.FIL                      15:38:36.924271
    
    528.00   /clients/client5/~dmtmp/SEED/       -2012-05-09
             LARGE.FIL                        15:39:09.81893
    
    516.00   /clients/client6/~dmtmp/ACCESS/    -2012-05-09
             FASTENER.MDB                    15:39:01.797317