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New kernel compression methods - Updated lDebug lzd results (Announce)

posted by ecm Homepage E-mail, Düsseldorf, Germany, 16.04.2020, 17:29

Most notable change is that overlapping source and destination buffers are now allowed for the LZMA-lzip decompressor.

ldebug/tmp$ hg id
246b9ff45d45 tip
ldebug/tmp$ fname="ldebug.com"; fname2="debug"; fname3="debug.big"; fnameu="ldebugu.com"; arg="/C=Q"; upcase=0; method=none; ((upcase)) && method="$(echo "$method" | tr 'a-z' 'A-Z')"; mkdir -p "$method"; cp -a ../bin/"$fnameu" "$method"/"$fname"; cp -a "$fname3" "$method/$fname2.$method"; for method in none lz; do ((upcase)) && method="$(echo "$method" | tr 'a-z' 'A-Z')"; echo -e "\nmethod=$method\nsize=$(stat -c %s "$method/$fname")"; echo -e "ini size=$(( $(stat -c %s "$method/$fname") - ( ($(stat -c %s "$method/$fname2.$method") + 15) / 16 * 16 ) ))"; echo -e "alloc=$(exememls "$method/$fname")"; echo "@echo off" > test.bat; for jj in $(seq 0 511); do echo "@$method\\$fname $arg"; done >> test.bat; (export TIMEFORMAT='%3R'; time dosemu -dumb -quiet -K "$PWD" -E "test.bat" 2> /dev/null > /dev/null); done

method=none
size=82944
ini size=4800
alloc=96912 bytes = 6057 paragraphs
2.234

method=lz
size=53248
ini size=7680
alloc=97952 bytes = 6122 paragraphs
15.073
ldebug/tmp$

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l

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