Z Standard Best Compression Options

[KaktoR]

Originally Posted by doofoo24

ya it's expected with precompressor, zstd ratio worst by a lot compare to 4x4:lzma...
where i found zstd great is when used only with srep like srep+zstd...
for example games like hitman/ the evil within/Wolfenstein The Old Blood...

Example from Hitman 2

srep+zstd:22:ultra:T2
Compressed 1 file, 2,274,680,007 => 1,363,512,459 bytes. Ratio 59.94%
Compression time: cpu 3.08 sec/real 461.75 sec = 1%. Speed 4.93 mB/s
All OK

srep+4x4:LZMA
Compressed 1 file, 2,274,680,007 => 1,279,557,434 bytes. Ratio 56.25%
Compression time: cpu 4.80 sec/real 175.97 sec = 3%. Speed 12.93 mB/s
All OK

srep+LZMA
Compressed 1 file, 2,274,680,007 => 1,270,735,418 bytes. Ratio 55.86%
Compression time: cpu 5.33 sec/real 462.91 sec = 1%. Speed 4.91 mB/s
All OK

srep+lolz:dtb1:mtt1:mt6:d128m:mc1023
Compressed 1 file, 2,274,680,007 => 1,199,850,492 bytes. Ratio 52.75%
Compression time: cpu 2.47 sec/real 1071.78 sec = 0%. Speed 2.12 mB/s
All OK

[panker1992]

Originally Posted by KaktoR

Example from Hitman 2

srep+zstd:22:ultra:T2
Compressed 1 file, 2,274,680,007 => 1,363,512,459 bytes. Ratio 59.94%
Compression time: cpu 3.08 sec/real 461.75 sec = 1%. Speed 4.93 mB/s
All OK

srep+4x4:LZMA
Compressed 1 file, 2,274,680,007 => 1,279,557,434 bytes. Ratio 56.25%
Compression time: cpu 4.80 sec/real 175.97 sec = 3%. Speed 12.93 mB/s
All OK

srep+LZMA
Compressed 1 file, 2,274,680,007 => 1,270,735,418 bytes. Ratio 55.86%
Compression time: cpu 5.33 sec/real 462.91 sec = 1%. Speed 4.91 mB/s
All OK

srep+lolz:dtb1:mtt1:mt6:d128m:mc1023
Compressed 1 file, 2,274,680,007 => 1,199,850,492 bytes. Ratio 52.75%
Compression time: cpu 2.47 sec/real 1071.78 sec = 0%. Speed 2.12 mB/s
All OK

i recommend you to do some testing more, also introduce lolz with ldmf,

[External compressor:lolz]
default = -d304m -mt2
header = 0
packcmd = "lz\lolz_x64.exe" {options} -al1 -mc1023 -lm0 -rt0 -dt1 -mtb64m -dtb0 -x0 -tt8 $$arcdatafile$$.tmp $$arcpackedfile$$.tmp
unpackcmd = "lz\lolz_x64.exe" $$arcpackedfile$$.tmp $$arcdatafile$$.tmp

[External compressor:lolzi]
default = -d512m -mt1
header = 0
packcmd = "lz\lolz2_x64.exe" {options} -ldmf1 -ldc0 -al1 -mc1023 -lm0 -rt0 -dt1 -mtb64m -dtb0 -x0 -tt12 $$arcdatafile$$.tmp $$arcpackedfile$$.tmp
unpackcmd = "lz\lolz2_x64.exe" $$arcpackedfile$$.tmp $$arcdatafile$$.tmp

and i also recommend to check these settings as well

it's not wise to have mmt1 enabled, and its not wise to have many threads on lz type of algorithms as well,

lastly when doing tests compare apples to apples

ZSTD (--long=31) optional --ultra -22 mode only support 1 Thread even if you use more !!!!!