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
199     288     0.701   0.046   53      0.093   124.875 88.0    myrocks.none
114     532     0.749   0.008   57      0.001   136.750  2.0    myrocks.none.ra
280      99     0.356   0.047   27      0.094   251.125 74.5    myrocks.zstd
215     147     0.395   0.008   30      0.001   261.875  0.5    myrocks.zstd.ra
137     449     0.748   0.047   57      0.028   109.500 32.1    inno5635
103     593     0.759   0.047   58      0.039    54.375 43.4    inno5717

post
secs    rMB/s   rKB/o   r/o     rGB     cs/o    Mcpu/o  wa.sec  engine
210     285     0.730   0.049   56      0.098   128.500 98.6    myrocks.none
121     526     0.808   0.009   62      0.001   148.875  2.1    myrocks.none.ra
292     102     0.377   0.050   29      0.100   258.250 82.6    myrocks.zstd
226     148     0.418   0.007   32      0.001   274.375  0.6    myrocks.zstd.ra
132     462     0.769   0.048   59      0.029   111.625 31.7    inno5635
100     609     0.779   0.049   59      0.041    56.000 40.6    inno5717