* conclusions - different settings don't change compression speed much, only memory usage * chosen settings pbzip2 -9 -c __inFile__ > __outFile__ * benchmark 1 0 : pbzip2 -0 -c __inFile__ > __outFile__ 1 : pbzip2 -1 -c __inFile__ > __outFile__ 2 : pbzip2 -2 -c __inFile__ > __outFile__ 3 : pbzip2 -3 -c __inFile__ > __outFile__ 4 : pbzip2 -4 -c __inFile__ > __outFile__ 5 : pbzip2 -5 -c __inFile__ > __outFile__ 6 : pbzip2 -6 -c __inFile__ > __outFile__ 7 : pbzip2 -7 -c __inFile__ > __outFile__ 8 : pbzip2 -8 -c __inFile__ > __outFile__ 9 : pbzip2 -9 -c __inFile__ > __outFile__ text id | wall t cpu t w. MB/s c. MB/s mem MB ratio | wall t cpu t w. MB/s c. MB/s mem MB | stdev ---+-----------------------------------------------------+---------------------------------------------+------- 0 | 17.4 227.6 140.9 10.8 125.2 14.3% | 4.5 63.9 538.4 38.3 108.5 | 0.1% 1 | 15.0 196.6 158.0 12.0 43.7 17.2% | 4.1 57.8 570.3 40.9 48.8 | 0.5% 2 | 15.0 194.7 159.9 12.3 49.8 16.1% | 4.2 58.5 571.4 41.0 55.6 | 0.2% 3 | 15.3 199.1 157.6 12.1 59.2 15.5% | 4.3 59.4 566.5 40.7 66.5 | 0.2% 4 | 15.7 204.9 154.3 11.8 70.2 15.2% | 4.3 60.1 564.6 40.3 72.8 | 0.3% 5 | 15.8 206.6 153.8 11.8 80.7 15.0% | 4.3 60.0 571.5 40.5 79.1 | 0.4% 6 | 16.1 210.9 151.0 11.5 92.4 14.9% | 4.4 61.1 557.8 39.8 91.1 | 0.2% 7 | 16.3 215.0 149.0 11.3 107.8 14.8% | 4.4 62.6 552.1 38.9 99.5 | 0.5% 8 | 16.8 221.5 144.9 11.0 120.0 14.6% | 4.6 65.6 525.5 37.2 103.2 | 0.3% 9 | 17.4 228.5 140.8 10.7 120.7 14.3% | 4.5 64.1 544.5 38.2 102.4 | 0.2% binary id | wall t cpu t w. MB/s c. MB/s mem MB ratio | wall t cpu t w. MB/s c. MB/s mem MB | stdev ---+-----------------------------------------------------+---------------------------------------------+------- 0 | 104.2 1351.4 60.6 4.7 138.0 46.8% | 30.2 409.1 209.1 15.4 146.2 | 1.8% 1 | 95.5 1224.4 64.5 5.0 62.0 48.1% | 26.2 350.9 234.9 17.6 105.1 | 0.2% 2 | 95.1 1215.2 65.4 5.1 63.6 47.7% | 27.0 362.1 230.0 17.2 101.2 | 0.2% 3 | 95.0 1223.8 65.8 5.1 76.8 47.4% | 27.7 372.7 225.4 16.8 98.2 | 0.2% 4 | 96.4 1243.3 65.0 5.0 91.8 47.3% | 28.4 381.4 220.8 16.4 101.9 | 0.5% 5 | 97.9 1261.8 64.1 5.0 99.7 47.1% | 28.5 384.2 220.1 16.3 109.9 | 0.1% 6 | 98.2 1276.7 64.1 4.9 112.6 47.1% | 28.7 387.0 219.0 16.3 116.9 | 0.4% 7 | 99.0 1292.5 63.6 4.9 122.0 47.0% | 28.8 389.0 219.0 16.2 125.7 | 0.8% 8 | 101.4 1319.6 62.2 4.8 129.8 46.9% | 29.7 398.1 212.5 15.8 135.6 | 0.4% 9 | 103.3 1348.8 61.2 4.7 142.1 46.8% | 30.1 404.8 210.3 15.6 148.3 | 0.4% * benchmark 2 0 : pbzip2 -9 -c __inFile__ > __outFile__ 1 : pbzip2 -9 -m50 -c __inFile__ > __outFile__ 2 : pbzip2 -9 -m2000 -c __inFile__ > __outFile__ 3 : pbzip2 -9 -b4 -c __inFile__ > __outFile__ 4 : pbzip2 -9 -b20 -c __inFile__ > __outFile__ 5 : pbzip2 -9 -b40 -c __inFile__ > __outFile__ 6 : pbzip2 -9 -m2000 -b40 -c __inFile__ > __outFile__ text id | wall t cpu t w. MB/s c. MB/s mem MB ratio | wall t cpu t w. MB/s c. MB/s mem MB | stdev ---+-----------------------------------------------------+---------------------------------------------+------- 0 | 17.4 227.9 141.0 10.7 122.9 14.3% | 4.5 63.5 545.3 38.6 108.2 | 0.7% 1 | 17.4 228.6 141.1 10.7 137.9 14.3% | 4.5 63.5 538.8 38.6 103.6 | 0.3% 2 | 17.3 229.1 141.6 10.7 126.1 14.3% | 4.5 63.2 542.6 38.8 105.3 | 0.4% 3 | 15.9 205.8 152.4 11.8 77.7 15.1% | 4.0 58.6 599.8 41.4 82.4 | 0.5% 4 | 16.7 224.1 146.7 10.9 147.2 14.4% | 4.8 67.2 508.4 36.4 148.2 | 0.7% 5 | 16.4 221.8 149.6 11.0 240.1 14.3% | 4.7 64.5 517.5 38.0 230.7 | 0.5% 6 | 16.3 222.3 150.2 11.0 230.5 14.3% | 4.6 63.7 530.9 38.4 218.0 | 0.8% binary id | wall t cpu t w. MB/s c. MB/s mem MB ratio | wall t cpu t w. MB/s c. MB/s mem MB | stdev ---+-----------------------------------------------------+---------------------------------------------+------- 0 | 103.7 1347.4 60.9 4.7 139.6 46.8% | 30.4 410.3 208.1 15.4 141.6 | 0.5% 1 | 103.4 1361.8 61.1 4.6 154.9 46.8% | 30.1 406.5 210.0 15.5 149.2 | 0.6% 2 | 103.9 1359.1 60.8 4.6 141.6 46.8% | 30.1 403.7 209.9 15.7 138.6 | 0.5% 3 | 97.8 1239.2 64.1 5.1 80.3 47.3% | 28.3 382.6 221.8 16.4 85.3 | 0.4% 4 | 100.8 1323.0 62.7 4.8 221.5 46.8% | 29.9 401.9 211.3 15.7 226.0 | 0.3% 5 | 99.0 1316.0 63.9 4.8 353.5 46.8% | 29.7 399.7 213.1 15.8 290.8 | 0.4% 6 | 97.9 1319.2 64.6 4.8 322.4 46.8% | 29.8 398.4 212.6 15.9 290.0 | 0.8%