Archive Comparison Test - by Jeff Gilchrist
October 7, 2002 Macintosh Edition


Text Compression Test

The specifications and configuration of the test computer can be found here.

The text file test includes three files:

The links to download these test files can be found here.

Legend
+ - New program tested
B - Best compression (smallest compressed file)
F - Fastest compression time
Q - Quickest extraction time
O - Best overall (smallest overall score - calculated by adding compress time, extract time, and time it would take to transfer the compressed file over a 28,800bps network)
+HQX - means that the test files were compressed and then BASE-64 encoded.
+TAR - means that the test files were stored together in one TAR file first and then compressed.
+UU - means that the test files were compressed and then UU encoded.

  ACT 2.0 Text Test              
  Total Files Size (bytes): 4,920,277            
  Name Switches

Compress
Time

Extract
Time

Compressed
Size

Overall
Score

Compress
Ratio

Bits per
Byte

     

(seconds)

(seconds)

(bytes)

(seconds)

(%)

(b/B)

+BO Stuffit Deluxe 7.0 -> SITX (Max)

14.82

15.73

957,972

296.65

80.53

1.5576

+ Stuffit Deluxe 7.0 -> SITX (Med)

13.28

9.14

1,005,656

301.77

79.56

1.6351

  BZIP2 0.0b2+TAR 900k

15.20

6.86

1,092,935

325.65

77.79

1.7770

+ Stuffit Deluxe 7.0 -> BZIP+TAR (Max)

12.49

4.04

1,113,076

325.72

77.38

1.8098

  Stuffit Deluxe 6.5 -> BZIP+TAR (Max)

13.55

6.35

1,116,522

330.05

77.31

1.8154

  Stuffit Deluxe 6.5 -> SIT (Max)

12.42

8.19

1,133,058

335.35

76.97

1.8423

  BZIP2 0.0b2+TAR 400k

13.44

6.76

1,186,129

349.68

75.89

1.9286

  MacRAR 2.5b5 -m4 -mm -md1024 -s

140.60

1.77

1,227,733

483.41

75.05

1.9962

  MacRAR 2.5b5 -m4 -mm -md1024

116.52

1.81

1,239,251

462.57

74.81

2.0149

Q MacRAR 2.5b5 -mm -md1024

86.95

1.61

1,245,766

434.61

74.68

2.0255

+ Stuffit Deluxe 7.0 -> BZIP+TAR (Fast)

10.79

3.82

1,282,442

370.84

73.94

2.0852

+ Stuffit Deluxe 7.0 -> SIT+HQX (Max)

15.63

17.14

1,302,295

394.52

73.53

2.1174

  Stuffit Deluxe 6.5 -> BZIP+TAR (Fast)

12.01

6.41

1,401,954

407.85

71.51

2.2795

+ Stuffit Deluxe 7.0 -> GZIP+TAR (Max)

14.47

2.28

1,498,003

432.86

69.55

2.4356

  Stuffit Deluxe 6.5 -> SIT+HQX (Max)

14.91

9.26

1,540,276

452.02

68.70

2.5044

+ Stuffit Deluxe 7.0 -> ZIP (Max)

12.30

1.95

1,500,751

431.13

69.50

2.4401

  MacGZIP 1.1 + TAR (Level 9)

8.64

4.53

1,551,397

444.11

68.47

2.5225

  Stuffit Deluxe 6.5 -> GZIP+TAR (Max)

10.53

4.85

1,552,382

446.60

68.45

2.5241

  SmartZip 1.0.1 (none)

8.10

3.07

1,553,672

442.75

68.42

2.5262

  PKZIP 2.03 (Max)

21.46

3.86

1,555,454

457.39

68.39

2.5291

  Stuffit Deluxe 6.5 -> ZIP (Max)

7.68

4.14

1,557,060

444.34

68.35

2.5317

  MacGZIP 1.1 + TAR (Level 6)

7.99

4.66

1,558,171

445.48

68.33

2.5335

  ZIPIT 2.1 (Level 9)

11.94

3.44

1,574,018

452.61

68.01

2.5592

  PKZIP 2.03 (Normal)

11.88

3.97

1,586,250

456.48

67.76

2.5791

  Stuffit Deluxe 6.5 -> SIT (Fast)

6.38

3.54

1,600,483

454.50

67.47

2.6023

  ZIPIT 2.1 (Level 5)

8.81

3.33

1,625,293

463.61

66.97

2.6426

+ Stuffit Deluxe 7.0 -> GZIP+TAR (Fast)

7.41

2.23

1,741,165

493.30

64.61

2.8310

+ Stuffit Deluxe 7.0 -> SITX (Fast)

11.85

2.93

1,741,857

498.63

64.60

2.8321

+ Stuffit Deluxe 7.0 -> ZIP (Fast)

5.44

2.14

1,741,955

491.46

64.60

2.8323

  PKZIP 2.03 (Fast)

7.63

4.26

1,800,750

512.10

63.40

2.9279

F Stuffit Deluxe 6.5 -> ZIP (Fast)

3.50

4.21

1,861,122

524.69

62.17

3.0260

  MacGZIP 1.1 + TAR (Level 1)

5.65

5.45

1,947,420

552.05

60.42

3.1664

  Stuffit Deluxe 6.5 -> GZIP+TAR (Fast)

6.60

4.88

1,949,010

552.87

60.39

3.1689

  ZIPIT 2.1 (Level 1)

7.48

3.56

1,974,507

559.51

59.87

3.2104

+ Stuffit Deluxe 7.0 -> ZIP+UU (Max)

13.16

4.24

2,067,737

591.77

57.98

3.3620

  Stuffit Deluxe 6.5 -> LHA (Max)

9.68

3.32

2,101,327

596.70

57.29

3.4166

  Stuffit Deluxe 6.5 -> LHA (Fast)

10.80

4.35

2,105,722

600.07

57.20

3.4237

  Stuffit Deluxe 6.5 -> ZIP+UU (Max)

8.96

5.74

2,145,315

610.62

56.40

3.4881

+ Stuffit Deluxe 7.0 -> TAR (none)

2.26

1.51

4,789,248

1334.12

2.66

7.7870

  Stuffit Deluxe 6.5 -> TAR (none)

3.88

2.34

4,789,248

1336.57

2.66

7.7870

  MacTAR 4.2.1 (none)

1.66

1.62

4,792,320

1334.48

2.60

7.7920

                 
  Best Compression: Stuffit Deluxe 7.0 -> SITX            
  Fastest Compression: Stuffit Deluxe 6.5 -> ZIP            
  Quickest Extraction: MacRAR 2.5b5            
  Best Overall: Stuffit Deluxe 7.0 -> SITX            

 

Legend
+ - New program tested
B - Best compression (smallest compressed file)
F - Fastest compression time
Q - Quickest extraction time
O - Best overall (smallest overall score - calculated by adding compress time, extract time, and time it would take to transfer the compressed file over a 28,800bps network)
+HQX - means that the test files were compressed and then BASE-64 encoded.
+TAR - means that the test files were stored together in one TAR file first and then compressed.
+UU - means that the test files were compressed and then UU encoded.


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