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Old 01-08-2017, 09:15
shazzla shazzla is offline
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SREP parameter - I need help !

Greetings !

Im in trouble with SREP.
I want to use it with the following parameter :

srep64 -a8 -m5f -l512 -d8g:h4gb:l32:c8 my_data.dat deduplicated.srep

but in command line ,like this :

arc.exe a -ep1 -dsgercpn -s; -lc- -di -i2 -msrep:a8:m5f:l512:d8g deduplicated.arc source.dat

The question is ,how can i pass h4gb:l32:c8 to the command-line ?

Obviously -msrep:a8:m5f:l512:d8g:h4gb:l32:c8 doesnt work.

Editing the arc.ini works ,but its a no-go ,because i change those parameters frequently...

Last edited by shazzla; 01-08-2017 at 09:18.
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Old 01-08-2017, 10:20
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Edison007 Edison007 is offline
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-msrep:a8:m5f:l512:d8g:dh4gb:dl32:dc8
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Old 01-08-2017, 10:29
shazzla shazzla is offline
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WoW !
Thanks my friend !!


@Edison007 : from where did you get this knowledge ? Is there any documentation ?

Last edited by shazzla; 01-08-2017 at 10:35.
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Old 01-08-2017, 12:16
vint56 vint56 is offline
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shazzla
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srep -a8 -m5f -l512 -d8g -dh4gb -dl32 -dc8

Code:
SREP 3.93a beta: huge-dictionary LZ77 preprocessor   (c) Bulat.Ziganshin********com
October 11, 2014    homepage: http://freearc.org/research/SREP39.aspx

Usage: SREP [options] infile [outfile]
   infile/outfile can be specified as "-" for stdin/stdout
   "SREP [options] somefile" compresses data from somefile to somefile.srep
   "SREP [options] somefile.srep" decompresses data back to somefile
   "SREP [options]" compresses and "SREP -d [options]" decompresses data from stdin to stdout

Options are:
   -m0: only in-memory compression (REP algorithm)
   -m1: fixed-window content-defined chunking with matches checked by VMAC
   -m2: order-1 content-defined chunking with matches checked by VMAC
   -m3: check matches by VMAC digest (compression memory = 7-8% of filesize)
   -m4: check matches by rereading old data (compression memory = 3-4% of filesize)
   -m5/-mx: rereading with byte-accurate matches (compression memory = 7-9% of filesize)
   -l: minimum LZ match length, default 0
   -c: size of hash chunk, by default as small as required to find all these LZ matches
   -aX[/Y]: alloc X bytes of those Y bits will be set per L input bytes for compression accelerator
            Y=0/1/2/4/8/16/32/64, -a0 is slowest but requires least memory
   -ia-: disable I/O acceleration to reduce memory usage (-m5* only)
   -tN: use N compression threads (only for -m1/-m2)
   -dBYTES: dictionary size for in-memory compression (REP algorithm), default 512mb
   -dhBYTES/-dcN/-dlN: size of hash / size of hash chunk / minimum match length for in-memory compression

   -m1..-m5: index-LZ - list of matches saved at the end of compressed file
   -m1f..-m5f: future-LZ - decompression dictionary will hold only future matches
   -m1o..-m5o: I/O LZ - output file used as decompression dictionary
   -memBYTES: amount of RAM used by future-LZ/index-LZ decompression (extra goes into VM file)
      -mem75% AKA -mem75p means "use no more than 75% of RAM" - that's by default
      -mem600mb means itself
      -mem75%-600mb means "use no more than 75% of RAM minus 600 mb"
   -mBYTES: don't store matches larger than BYTES on future-LZ/index-LZ decompression

   -d: decompression (for -m0o..m5o requires only 24 mb of memory besides of OS I/O buffers)
   -i: print info about compressed file: srep -i datafile.srep
   -delete: delete source file after successful (de)compression
   -sBYTES: explicitly specify filesize (for compression from stdin), default 25gb
   -bBYTES: change compression block size, default 8mb
   -index=FILENAME: read/write index of compressed data into separate file
   -temp=[FILENAME]: keep uncompressed data in the file in stdin-to-stdout mode, default srep-data.tmp
   -vmfile=FILENAME: temporary file used by Virtual Memory manager, default srep-virtual-memory.tmp
   -vmblock=BYTES: size of one block in VM temporary file, default 8mb

   -hash=vmac(default)/siphash/md5/sha1/sha512: store hash checksums in every block
   -hash-: don't store/check block checksums
   -mmap: use memory-mapped files for match checking
   -slp[+/-/]: force/disable/try(default) large pages support (2mb/4mb)
   -pc[max_offset]: display performance counters [for matches closer than max_offset]
   -s: save printed stats from overwriting; -s+/-s-/-sX.Y: update stats every X.Y seconds
   -v[0..2]: verbosity level
   -rem...: command-line remark

Last edited by vint56; 01-08-2017 at 12:23.
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  #5  
Old 01-08-2017, 12:23
shazzla shazzla is offline
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ok,i was blind ,a little bit. again. :/
thanks.
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