FileForums - Z Standard Best Compression Options

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Quote:

Originally Posted by Simorq (Post 480680)

Code:

https://github.com/facebook/zstd/rel....4.0-win32.zip

https://github.com/facebook/zstd/rel....4.0-win64.zip

Thanks Simorq :)

Today i use it for Hitman Results is Excellent...

i did a test with LZMA & ZSTD result is :

Used Method : afr+srep:m3f+zstd:ultra:22:T1

Code:

FreeArc 0.67 (March 15 2014) extracting archive: forge_zstd.arc

Extracted 18 files, 2,012,040,342 => 7,460,454,400 bytes. Ratio 26.97%

Extraction time: cpu 735.30 sec/real 253.38 sec = 290%. Speed 29.44 mB/s

All OK

Used Method : afr+srep:m3f+lzma:ultra

Code:

FreeArc 0.67 (March 15 2014) extracting archive: forge_lzma.arc

Extracted 18 files, 1,901,738,484 => 7,460,454,400 bytes. Ratio 25.49%

Extraction time: cpu 913.78 sec/real 309.55 sec = 295%. Speed 24.10 mB/s

All OK

Game name : Prine of Persia [2008]

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...

Quote:

Originally Posted by doofoo24 (Post 480742)

Example from Hitman 2

Code:

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

Quote:

Originally Posted by KaktoR (Post 480747)

Example from Hitman 2

Code:

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 :D

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 !!!!!