#1
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why corepack is faster and fitgirl is smaller
Only for Corepack and Fitgirl
----------------------------------------------------------------------- It is thread for asking compression questions . ----------------------------------------------------------------------- If i know , i really help you to make a real repack like corepack and fitgirl. First why fitgirl repack is smaller , because she's using a large dict to compress a game , which make bin as smaller but make installation get some more times than repack time required. ---------------------------------------------------------------------- Second why corepack is faster than other , because they using a srep+lzma to compress but not default setting of srep - which means if dec blocksize is larger than 8mb it cause error and if it is 8mb a normal dec speed can be obtain . If block of srep is 1mb then dec of srep is faster than normal srep setting. Question1 : why fitgirl is not faster , because i you have cpu specs equal to fitgirl cpu specs it can possible. Why fitgirl is not faster and larger , because corepack use srep as dec speed. fitgirl use's her's private tools so srep lz match is 1024mb to find not all matches and lolzi or lolzx is used to find all matches and compress to smaller. Corepack Uses srep as primary tool for dec Fitgirl uses lolzi or lolzx as primary tool for dec So it is my summary on decompression speed on fitgirl and corepack. If any question , i will reply it soon . if i know Thank you for reading::: |
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ADMIRAL (31-01-2020) |
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#2
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This is a typical case of space–time tradeoff.
__________________
Joe Forster/STA For more information, see the FileForums forum rules and the PC Games forum FAQ! Don't contact me via E-mail or PM to ask for help with anything other than patches (or software in general) done by me, otherwise your request may be deleted without any reply! Homepage: http://sta.c64.org, E-mail: [email protected]; for attachments, send compressed (ZIP or RAR) files only, otherwise your E-mail will bounce back! |
#3
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It's not a general rule. Many of my modern repacks are both faster and smaller than competition. And ofc they are always smaller.
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#4
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Many repacker are stick with compression alogrithm because i see fitgirl bin files in winhex says srep:l1024+lolzi:1gb.... hence if i use l as 1024 i can't compress a file somemuch
so l256 is optimum to me. |
#5
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l256 or 1024 ?
it depends on the data. |
#6
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l means a minimum match length in srep
It is to be small to find all matches in data:: I use -m5f -l128 -c64 -b6mb -a16 to get faster decompression speed |
The Following User Says Thank You to Jiva newstone For This Useful Post: | ||
shazzla (01-12-2017) |
#7
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I just don't use srep 3.9 series, has bugs in Win 10.
For bigger games, I use 3.2 For small games, I use 2.94 to force stop virtual memory creation
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The Following 4 Users Say Thank You to 78372 For This Useful Post: | ||
#8
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You could say many of your modern "not so popular game" repacks. Most the popular game repacks done by you, even the modern ones are slower but off course smaller.
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#9
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Thank for your tips 78372 !
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#10
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Anyone say why error on unpacking by using this method lzma+srep
Error = Not an srep compressed file . |
#11
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Only repacks with some custom compression/encryption, which require data rebuilding. Absolute majority of repackers can't do anything if game data is not supported by precomp/pzlib/ztool.
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The Following 3 Users Say Thank You to FitGirl For This Useful Post: | ||
#12
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Store and compress already compressed data := you can compress with anything
Here's result Quote:
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The Following User Says Thank You to Jiva newstone For This Useful Post: | ||
ScOOt3r (23-02-2021) |
#13
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What the RePack Script FitGirl
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#14
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Fitgirl is using default script of inno without chaging anythings but she just added mapping function in the script to use with lolz and srep
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#15
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How to Set Fitgirl Language Files
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