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-
- Comparison of MS-DOS archivers done 3/1/87 by Dean W. Cooper.
- The test cases used are simply the test cases used when developing
- the DWC archiver. Hopefully this comparison will be replaced by a
- fair and independantly done comparison. Updated 5/13/87, 6/6/87.
- -------------------------------------------------------------------
-
- Set 1: 12 Large text files (Documentation and C source code)
- 2: 8 Large .LIB files (C libraries)
- 3: 7 Large .EXE files (C compiler and CodeView)
- 4: 1 PROCOMM.EXE
- 5: 21 Assorted games
- 6: 29 Fonts and drivers from MicroSoft Windows
- 7: 26 PCPaint package and couple picture files
- 8: 13 Files containing ProComm screen dumps of BBS sessions
-
- COMPRESS SIZE: Set # 1 2 3 4 5
- ===================================================================
- Original Size - 689,067 356,864 624,827 165,456 400,870
- -------------------------------------------------------------------
- ARC 5.12 "an" - 274,641 263,154 539,664 115,979 312,487
- ARC 5.20 "an" - 294,317 250,913 483,967 104,735 287,548
- ZOO 1.31 "aq" - 262,492 238,501 466,991 103,792 280,677
- ZOO 1.41 "aq" - 262,492 238,501 466,991 103,792 280,677
- ARCA 1.27 - 275,090 246,403 471,288 104,852 280,222
- PKARC 1.2 "a" - 276,677 243,473 470,329 103,122 275,635
- PKARC 2.0 "/oc a" - 274,275 246,442 468,457 103,492 277,391
- PKARC 2.0 "a" - 258,399 246,442 468,457 103,492 277,475
- PKARC 3.5 "/oc a" - 277,349 243,832 468,622 102,838 273,932
- PKARC 3.5 "a" - 258,335 238,384 464,096 103,126 274,395
- DWC A4.x "an" - 253,284 232,427 455,938 103,348 275,459
- DWC A4.x "azn" - 243,647 226,689 451,013 103,072 272,908
- ===================================================================
-
- COMPRESS SIZE: Set # 6 7 8 Total Shrunk
- ====================================================================
- Original Size - 334,403 241,172 1056,128 3868,787
- --------------------------------------------------------------------
- ARC 5.12 "an" - 222,355 156,784 344,438 2229,502 42.37%
- ARC 5.20 "an" - 214,560 147,524 343,289 2126,853 45.03%
- ZOO 1.31 "aq" - 210,569 144,788 339,571 2047,381 47.08%
- ZOO 1.41 "aq" - 210,569 144,788 339,571 2047,381 47.08%
- ARCA 1.27 - 209,568 144,653 347,896 2079,972 46.24%
- PKARC 1.2 "a" - 208,044 144,627 343,523 2065,430 46.61%
- PKARC 2.0 "/oc a" - 208,338 144,461 345,054 2067,910 46.55%
- PKARC 2.0 "a" - 208,338 144,461 336,523 2043,587 47.18%
- PKARC 3.5 "/oc a" - 207,136 143,761 344,429 2061,899 46.70%
- PKARC 3.5 "a" - 207,136 143,846 337,810 2027,128 47.60%
- DWC A4.x "an" - 209,942 144,635 329,498 2004,531 48.19%
- DWC A4.x "azn" - 209,353 143,770 313,112 1963,564 49.25%
- ====================================================================
-
- COMPRESS TIME: Set # 1 2 3 4 5 6 7 8 Total
- ====================================================================
- ARC 5.12 "an" - 630 511 1062 204 703 563 372 784 4829
- ARC 5.20 "an" - 506 331 626 140 380 304 215 626 3128
- ZOO 1.31 "aq" - 132 96 180 47 122 95 68 185 925
- ZOO 1.41 "aq" - 131 94 181 46 119 101 70 183 925
- ARCA 1.27 - 120 88 157 38 103 86 62 154 808
- PKARC 1.2 "a" - 95 74 126 29 74 64 43 118 623
- PKARC 2.0 "/oc a" - 88 65 118 28 71 62 42 106 580
- PKARC 2.0 "a" - 94 65 118 28 71 62 43 125 606
- PKARC 3.5 "/oc a" - 74 54 100 25 58 49 36 87 483
- PKARC 3.5 "a" - 72 52 96 23 57 49 35 87 471
- DWC A4.x "an" - 77 54 93 25 66 57 44 108 524
- DWC A4.x "azn" - 90 66 110 29 76 65 49 126 611
- DWC 100% C "an" - 142 97 167 43 111 100 69 201 930
- DWC 100% C "azn" - 152 118 205 52 154 126 88 212 1107
- ====================================================================
-
- DECOMPRESS TIME: Set # 1 2 3 4 5 6 7 8 Total
- ====================================================================
- ARC 5.12 "en" - 346 250 476 94 323 226 178 420 2313
- ARC 5.20 "en" - 324 212 404 93 256 208 153 409 2059
- ARCE 3.0f - 84 55 97 24 77 74 59 101 571
- ZOO 1.31 "eqoo" - 102 69 120 28 91 88 67 144 709
- ZOO 1.41 "eqoo" - 105 73 122 31 105 104 87 133 760
- LOOZ 1.01 "x" - 114 71 123 29 106 104 85 147 779
- PKXARC 1.2 - 65 43 78 20 68 67 53 82 476
- PKXARC 2.0 /oc - 61 43 78 19 65 62 47 81 456
- PKXARC 2.0 - 58 43 78 19 64 62 47 84 455
- PKXARC 3.5 /oc - 60 39 68 16 57 55 43 76 414
- PKXARC 3.5 - 57 37 61 15 56 55 43 77 401
- DWC A4.x "en" - 54 36 60 16 53 58 44 73 394
- DWC A4.x "en" z - 53 35 60 15 54 57 45 71 390
- DWC 100% C "en" - 104 63 110 31 90 93 74 149 714
- DWC 100% C "en" z - 103 65 109 31 91 93 74 147 713
- ====================================================================
-
- Note: "DWC 100% C" is a version of the DWC archiver that is 100% C
- code (source code is available). This shows the speed of the
- more portable version of the archiver. The regular released
- version has had certain modules optimized in assembler.
-
- Note: The '/oc' and 'z' show the decompression times for the files
- compressed with those special options.
-
-