gistfile1.txt

legend:
* secs - number of seconds for index scan
* rMB/s - iostat MB read/second
* r/o - iostat reads per row scanned
* rGB - iostat GB read during the index scan
* cs/o - vmstat context switches per row scanned
* Mcpu/o - vmstat us+sy * 1M / rows scanned
* wa.sec - number of seconds in vmstat wa state during the test
* engine - *.ra means readahead was enabled, none/zstd/zlib means compression was used

pre
secs    rMB/s   rKB/o   r/o     rGB     cs/o    Mcpu/o  wa.sec  engine
135     215     0.716   0.046   27      0.093   134.750  81     myrocks.none
 68     434     0.666   0.009   25      0.001   146.000   4     myrocks.none.ra
175      89     0.387   0.047   15      0.095   301.750  54     myrocks.zstd
138     114     0.378   0.007   14      0.001   310.000   7     myrocks.zstd.ra
107     288     0.738   0.030   28      0.034   116.750  41     inno5635
457      67     0.773   0.032   29      0.067    67.000 296     inno5717

post
secs    rMB/s   rKB/o   r/o     rGB     cs/o    Mcpu/o  wa.sec  engine
229     140     0.785   0.050   30      0.101   150.500 164     myrocks.none
137     235     0.782   0.009   30      0.002   167.250  40     myrocks.none.ra
234      70     0.413   0.050   16      0.101   319.250 107     myrocks.zstd
173      96     0.417   0.007   16      0.001   337.750  28     myrocks.zstd.ra
171     179     0.778   0.032   30      0.034   124.750  84     inno5635
177     173     0.752   0.031   29      0.066    59.000 105     inno5717