oxipng — oxipng.exe -o 6 --libdeflater --threads 1 --alpha --strip all

file insize instate stats outsize outstate savings
brocolli.png 54836 bytes /c3 /f0 /d8 /n6
Kernel  Time =     0.000 =    0%
User    Time =     0.343 =  107%
Process Time =     0.343 =  107%    Virtual  Memory =     12 MB
Global  Time =     0.318 =  100%    Physical Memory =      9 MB
41970 bytes /c3 /f0 /d4 /n5 12866 bytes
carrot.png 61197 bytes /c3 /f0 /d8 /n17
Kernel  Time =     0.000 =    0%
User    Time =     1.171 =  105%
Process Time =     1.171 =  105%    Virtual  Memory =     15 MB
Global  Time =     1.114 =  100%    Physical Memory =     14 MB
36857 bytes /c3 /f0 /d4 /n6 24340 bytes
chart.png 63110 bytes /c3 /f0 /d8 /n29
Kernel  Time =     0.015 =    0%
User    Time =     2.359 =  103%
Process Time =     2.375 =  104%    Virtual  Memory =     21 MB
Global  Time =     2.272 =  100%    Physical Memory =     22 MB
29003 bytes /c3 /f2 /d4 /n7 34107 bytes
colors.png 5713 bytes /c3 /f0 /d8 /n4
Kernel  Time =     0.031 =   10%
User    Time =     0.281 =   95%
Process Time =     0.312 =  105%    Virtual  Memory =     12 MB
Global  Time =     0.295 =  100%    Physical Memory =     10 MB
1264 bytes /c3 /f0 /d4 /n1 4449 bytes
salad.png 244577 bytes /c3 /f0 /d8 /n19
Kernel  Time =     0.046 =    3%
User    Time =     1.578 =  103%
Process Time =     1.625 =  106%    Virtual  Memory =     18 MB
Global  Time =     1.525 =  100%    Physical Memory =     21 MB
157808 bytes /c3 /f0 /d4 /n3 86769 bytes
screen.png 9707 bytes /c3 /f0 /d8 /n32
Kernel  Time =     0.031 =    6%
User    Time =     0.484 =  100%
Process Time =     0.515 =  106%    Virtual  Memory =     14 MB
Global  Time =     0.482 =  100%    Physical Memory =     12 MB
6067 bytes /c3 /f0 /d4 /n3 3640 bytes
total savings 166171 bytes
total time 6,01 seconds