iostatparse.py

Usage: iostatparse.py [-h] file [file ...]

Parse the output of zpool iostat to generate summarized performance statistics

Positional arguments:

file Text file(s) containing the zpool iostat output to parse

Details:

Outputs 50th, 90th, 95th, 99th percentile and max value for performance statistics generated by zpool iostat command. Performance statistics include R/W/Combined IOPS and throughput, I/O size, total R/W latency, and disk R/W latency. Also calculates R/W mix, average I/O size, total data written across iostat interval, and average total written per day.

Sample Output:

                    Unit        50p            90p            95p            99p            Max            Avg             σ            
                   ------      -----          -----          -----          -----          -----          -----          -----          
  Read IOPS        Ops/Sec     0              142            163            202            2009           42.04          68.95          
 Write IOPS        Ops/Sec     0              897            1006           1610           2220           199.65         404.89         
   R+W IOPS        Ops/Sec     23             937            1065           1635           2305           241.69         410.8          
  Read Throughput  MiB/sec     0.0            23.2           26.5           31.43          78.5           6.46           10.36          
 Write Throughput  MiB/sec     0.0            5.32           7.52           17.23          31.7           1.47           3.48           
   R+W Throughput  MiB/sec     0.18           25.44          28.26          37.43          78.5           7.93           10.92          
  Read IO Size     KiB         170.92         172.7          173.61         177.69         209.0          135.44         64.93          
 Write IO Size     KiB         6.33           9.99           11.44          13.85          34.38          7.04           2.12           
  Read Tot. Lat.   mSec        2.0            17.0           19.0           25.0           116.0          5.39           7.08           
 Write Tot. Lat.   mSec        1.0            2.0            3.0            4.0            4.0            1.25           0.64           
  Read Disk Lat.   mSec        1.0            2.0            3.0            4.0            4.0            1.25           0.64           
 Write Disk Lat.   mSec        2.0            17.0           19.0           25.0           116.0          5.36           7.04           

   Total Samples Parsed: 8,175 (2h 16m 15s)
   Read Mix (by Op Count): 17 %
   Read Mix (by Size): 81 %
   Total Written: 0.01 TiB
   Total Written per Day: 0.12 TiB

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edgarsuit/iostatparse

iostatparse.py