oxipng — oxipng.exe -o 2 --libdeflater --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 =     0.156 =  166%
Process Time =     0.156 =  166%    Virtual  Memory =     20 MB
Global  Time =     0.094 =  100%    Physical Memory =     10 MB
41970 bytes /c3 /f0 /d4 /n5 12866 bytes
carrot.png 61197 bytes /c3 /f0 /d8 /n17
Kernel  Time =     0.000 =    0%
User    Time =     0.546 =  187%
Process Time =     0.546 =  187%    Virtual  Memory =     23 MB
Global  Time =     0.291 =  100%    Physical Memory =     16 MB
36857 bytes /c3 /f0 /d4 /n6 24340 bytes
chart.png 63110 bytes /c3 /f0 /d8 /n29
Kernel  Time =     0.031 =    5%
User    Time =     1.046 =  176%
Process Time =     1.078 =  182%    Virtual  Memory =     25 MB
Global  Time =     0.591 =  100%    Physical Memory =     23 MB
29469 bytes /c3 /f5 /d4 /n7 33641 bytes
colors.png 5713 bytes /c3 /f0 /d8 /n4
Kernel  Time =     0.000 =    0%
User    Time =     0.171 =  176%
Process Time =     0.171 =  176%    Virtual  Memory =     21 MB
Global  Time =     0.097 =  100%    Physical Memory =     11 MB
1264 bytes /c3 /f0 /d4 /n1 4449 bytes
salad.png 244577 bytes /c3 /f0 /d8 /n19
Kernel  Time =     0.000 =    0%
User    Time =     0.906 =  192%
Process Time =     0.906 =  192%    Virtual  Memory =     24 MB
Global  Time =     0.470 =  100%    Physical Memory =     26 MB
157808 bytes /c3 /f0 /d4 /n3 86769 bytes
screen.png 9707 bytes /c3 /f0 /d8 /n32
Kernel  Time =     0.000 =    0%
User    Time =     0.265 =  163%
Process Time =     0.265 =  163%    Virtual  Memory =     22 MB
Global  Time =     0.162 =  100%    Physical Memory =     13 MB
6067 bytes /c3 /f0 /d4 /n3 3640 bytes
total savings 165705 bytes
total time 1,71 seconds