oxipng — oxipng.exe -o 2 --libdeflater --threads 1 --alpha --strip all

file insize instate stats outsize outstate savings
sprite1.png 214138 bytes /c6 /f0 /n82
Kernel  Time =     0.218 =    9%
User    Time =     2.187 =   90%
Process Time =     2.406 =   99%    Virtual  Memory =     19 MB
Global  Time =     2.410 =  100%    Physical Memory =     21 MB
103514 bytes /c6 /f0 /n16 110624 bytes
sprite2.png 81959 bytes /c6 /f0 /n27
Kernel  Time =     0.015 =    2%
User    Time =     0.671 =   99%
Process Time =     0.687 =  101%    Virtual  Memory =     13 MB
Global  Time =     0.674 =  100%    Physical Memory =     15 MB
40392 bytes /c6 /f0 /n5 41567 bytes
sprite3.png 481998 bytes /c6 /f0 /n118
Kernel  Time =     0.515 =   14%
User    Time =     3.125 =   85%
Process Time =     3.640 =   99%    Virtual  Memory =     35 MB
Global  Time =     3.643 =  100%    Physical Memory =     37 MB
251354 bytes /c6 /f0 /n15 230644 bytes
sprite4.png 76877 bytes /c6 /f0 /n76
Kernel  Time =     0.015 =    8%
User    Time =     0.171 =   93%
Process Time =     0.187 =  102%    Virtual  Memory =     12 MB
Global  Time =     0.183 =  100%    Physical Memory =      8 MB
26148 bytes /c3 /f0 /d8 /n9 50729 bytes
sprite5.png 49557 bytes /c6 /f0 /n23
Kernel  Time =     0.000 =    0%
User    Time =     0.140 =   92%
Process Time =     0.140 =   92%    Virtual  Memory =     12 MB
Global  Time =     0.152 =  100%    Physical Memory =      8 MB
24679 bytes /c3 /f0 /d8 /n7 24878 bytes
sprite6.png 31212 bytes /c6 /f0 /n15
Kernel  Time =     0.000 =    0%
User    Time =     0.093 =   96%
Process Time =     0.093 =   96%    Virtual  Memory =     11 MB
Global  Time =     0.096 =  100%    Physical Memory =      8 MB
14857 bytes /c3 /f0 /d8 /n2 16355 bytes
sprite7.png 59637 bytes /c6 /f0 /n17
Kernel  Time =     0.046 =    8%
User    Time =     0.562 =  101%
Process Time =     0.609 =  109%    Virtual  Memory =     13 MB
Global  Time =     0.555 =  100%    Physical Memory =     11 MB
36297 bytes /c6 /f0 /n5 23340 bytes
sprite8.png 469897 bytes /c6 /f0 /n88
Kernel  Time =     0.171 =   12%
User    Time =     1.250 =   87%
Process Time =     1.421 =   99%    Virtual  Memory =     21 MB
Global  Time =     1.426 =  100%    Physical Memory =     22 MB
393076 bytes /c6 /f5 /n12 76821 bytes
sprite9.png 204177 bytes /c6 /f0 /n42
Kernel  Time =     0.015 =    8%
User    Time =     0.187 =  102%
Process Time =     0.203 =  110%    Virtual  Memory =     13 MB
Global  Time =     0.183 =  100%    Physical Memory =     12 MB
85746 bytes /c3 /f0 /d8 /n11 118431 bytes
spritea.png 163705 bytes /c6 /f0 /n112
Kernel  Time =     0.046 =    8%
User    Time =     0.578 =  100%
Process Time =     0.625 =  108%    Virtual  Memory =     16 MB
Global  Time =     0.577 =  100%    Physical Memory =     16 MB
61385 bytes /c3 /f0 /d8 /n11 102320 bytes
spriteb.png 791918 bytes /c6 /f0 /n3
Kernel  Time =     0.046 =    5%
User    Time =     0.812 =   94%
Process Time =     0.859 =  100%    Virtual  Memory =     19 MB
Global  Time =     0.858 =  100%    Physical Memory =     18 MB
416727 bytes /c6 /f0 /n35 375191 bytes
spritec.png 326840 bytes /c2 /f4 /n5
Kernel  Time =     0.015 =    9%
User    Time =     0.156 =   92%
Process Time =     0.171 =  102%    Virtual  Memory =     13 MB
Global  Time =     0.168 =  100%    Physical Memory =     11 MB
117824 bytes /c3 /f0 /d8 /n11 209016 bytes
total savings 1379916 bytes
total time 10,93 seconds