diff --git a/results.txt b/results.txt new file mode 100644 index 000000000..f5ee693db --- /dev/null +++ b/results.txt @@ -0,0 +1,211 @@ + +Corpus contains 1734 PNG files from mozilla hg repo +5491004 total bytes (complete PNG files) +5019516 total bytes (IDAT chunk data) +35154779 total bytes uncompressed IDATs + +mogrify -strip *.png +added vpAG, bKGD, and pHYs chunks. (was old mogrify) +scooby> time q16mogrify -strip *.png +real 0m13.500s user 0m13.057s sys 0m0.424s +5061691 total bytes (complete PNG files) + +Corpus divided into two parts: small, stripped PNGs less than 1024 bytes, +and large, stripped PNGs greater than or equal to 1024 bytes. + +pngcrush -brute -d BF_brute *.png +CPU time decoding 35.690, encoding 255.190, other 19.960, total 310.840 seconds +4738882 total bytes (complete PNG files) +4281038 total bytes (IDAT chunk data) + +6850560 2013-03-02 22:04 mozilla-corpus.tar +4995464 2013-03-02 22:04 ../mozilla-corpus.tar.xz (xz) +4994412 2013-03-02 22:04 ../mozilla-corpus.tar.xz (xz -9) + +scooby> time gzip -9n *.idat +real 0m5.553s user 0m5.344s sys 0m0.200s +time gzip -d *.gz +real 0m0.778s user 0m0.552s sys 0m0.224s + +scooby> time gzip -9n *.idat +real 0m5.648s user 0m5.436s sys 0m0.200s +4360009 total bytes (includes 20820 bytes of gzip overhead) +4339189 total bytes (without 20820 bytes of gzip overhead) +scooby> time gunzip *.idat.gz +real 0m0.762s user 0m0.568s sys 0m0.188s + + +scooby> time bzip2 *idat +real 0m3.830s user 0m3.452s sys 0m0.320s +4015342 total bytes +scooby> time bzip2 -d *bz2 +real 0m1.011s user 0m0.716s sys 0m0.292s + + +scooby> time xz *idat +real 0m14.621s user 0m14.305s sys 0m0.236s +3813468 total bytes +scooby> time xz -d *.xz +real 0m0.716s user 0m0.452s sys 0m0.256s + +scooby> nohup time zopfli --zlib *.idat & +587.24user 0.40system 9:48.10elapsed +4035633 total + +pngcrush -d PC_default *.png +CPU time decoding 1.710, encoding 21.600, other 1.190, total 24.500 seconds +4757749 total bytes (complete PNG files) +4299905 total bytes (IDAT chunk data) + +scooby> time gzip -9n *.idat +real 0m5.504s user 0m5.260s sys 0m0.236s + 4369829 total +scooby> time gunzip *gz +real 0m0.791s user 0m0.576s sys 0m0.212s + +scooby> time xz *.idat +real 0m14.481s user 0m14.145s sys 0m0.308s + 3820192 total +scooby> time xz -d *.xz +real 0m0.693s user 0m0.468s sys 0m0.220s + +scooby> time bzip2 -9 *.idat +real 0m3.603s user 0m3.220s sys 0m0.376s + 4022529 total +scooby> time bzip2 -d *bz2 +real 0m0.989s user 0m0.732s sys 0m0.252s + +time zopfli --zlib *.idat +590.4 sec + 4047719 total + +pngcrush -m 7 -force *.png # filter 0 level 9 strategy 0 +CPU time decoding 0.690, encoding 17.270, other 0.670, total 18.630 seconds +5593778 total PNG size +5136096 total IDAT size + +scooby> time gzip -n9 *.idat +real 0m2.835s user 0m2.556s sys 0m0.268s + 5153307 total +scooby> time gunzip *.gz +real 0m0.800s user 0m0.524s sys 0m0.272s +scooby> time gzip -n9 *.idat +real 0m7.134s user 0m6.812s sys 0m0.200s + 4773010 total +scooby> time gunzip *gz +real 0m0.763s user 0m0.536s sys 0m0.224s + + +scooby> time bzip2 -9 *.idat +real 0m5.024s user 0m4.684s sys 0m0.308s + 4614708 total +scooby> time bzip2 -d *.bz2 +real 0m1.033s user 0m0.732s sys 0m0.296s + +scooby> time xz *.idat +real 0m12.970s user 0m12.673s sys 0m0.280s + 4138560 total +scooby> time xz -d *xz +real 0m0.758s user 0m0.476s sys 0m0.280s + +zopli --zlib *.png +98.45user 0.47system 1:39.12elapsed 99%CPU (0avgtext+0avgdata 40192maxresident)k +4864938 + +pngcrush -m 6 -force *.png +CPU time decoding 0.430, encoding 16.090, other 0.870, total 17.390 seconds +4763290 + +scooby> time gzip -n9 *.idat +real 0m2.833s user 0m2.548s sys 0m0.236s +4752190 +scooby> gunzip *gz +real 0m0.767s user 0m0.580s sys 0m0.184s + +bzip2 -9 +real 0m2.523s user 0m2.164s sys 0m0.272s + 5492706 total + + +scooby> time xz *.idat +real 0m15.198s user 0m14.873s sys 0m0.272s + 4231288 total +scooby> time xz -d *xz +real 0m0.707s user 0m0.488s sys 0m0.216s + +zopfli +91.32user 0.62system 1:32.02elapsed +5153680 + +nohup time pngcrush -brute -reduce -force -d PC_reduced *.png& + CPU time decoding 36.160, encoding 244.460, other 16.910, total 297.530 seconds +4108911 + +time gzip -9n *.idat +real 0m5.315s user 0m5.068s sys 0m0.240s + 4187025 total +time gunzip *.gz +real 0m0.766s user 0m0.512s sys 0m0.252s + +scooby> time bzip2 -9 *.idat +real 0m3.618s user 0m3.220s sys 0m0.328s + 3844856 total + +scooby> time xz *.idat +real 0m14.098s user 0m13.753s sys 0m0.284s + 3651752 total + +zopfli +81.01user 0.45system 1:21.59elapsed + +Summary: + + Method time IDAT bytes + original files n/a 5019516 + + pngcrush -brute 310.8 4281038 + gzip -9n 5.6 4339189 + zopfli --zlib 596.7 4035633 + bzip2 -9 3.8 4015342 + xz 14.6 3813468 + + pngcrush default 24.5 4299905 + gzip -9n 5.5 4349009 + zopfli --zlib 590.4 4047719 + bzip2 -9 3.6 4022529 + xz 14.5 3820192 + + pngcrush none 18.6 5136096 + zopfli --zlib 98.9 4864938 + gzip -n9 2.8 5132487 + bzip2 -9 3.8 4614708 + xz 12.8 4138560 + + pngcrush adaptive 17.4 4763290 + zopfli --zlib 99.0 5153680 + gzip -n9 2.8 4752190 + bzip2 -9 2.6 5492706 + xz 15.2 4231288 + + pngcrush -reduce 297.5 4108911 + gzip -9n 5.3 4187025 + zopfli --zlib 81.5 4461661 + bzip2 -9 3.6 3844856 + xz 13.8 3651752 + + + Kodak 24 test images (some rotated to portrait) + time zopfli --zlib *.idat + real 2m52.325s user 2m52.107s sys 0m0.060s + kodim*.png 15249498 total + kodim*.zdat 15246402 total + kodim*.zlib 14717411 total + + Size range pngcrush zopfli z/pc + 0-200 11818 11618 .9831 + 201-1000 140290 136015 .9695 + 1001-10000 1040052 1000877 .9623 + 10001-200000 2756452 2568988 .9320 + 300000-450000 332611 318047 .9562 + 450001-999999 15246402 14717411 .9653 +