Last active
June 2, 2023 10:21
-
-
Save greggman/56ac64d04e6ebe9ca3c8e0d6e630ecd1 to your computer and use it in GitHub Desktop.
Native Float32Array vs Extended Float32Array
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| {"title":"Native Float32Array vs Extended Float32Array","initialization":"class Vec3 extends Float32Array {\n get z() { return this[0]; };\n get y() { return this[1]; };\n get z() { return this[2]; };\n get w() { return this[3]; };\n set z(v) { this[0] = v; };\n set y(v) { this[1] = v; };\n set z(v) { this[2] = v; };\n set w(v) { this[3] = v; };\n};\n\nclass Vec3Plus extends Float32Array {\n get z() { return this[0]; };\n get y() { return this[1]; };\n get z() { return this[2]; };\n get w() { return this[3]; };\n set z(v) { this[0] = v; };\n set y(v) { this[1] = v; };\n set z(v) { this[2] = v; };\n set w(v) { this[3] = v; };\n set(array, offset = 0) {\n this[0] = array[offset];\n this[1] = array[offset] + 1;\n this[2] = array[offset] + 2;\n return this\n }\n addInPlace(v) {\n this[0] += v[0];\n this[1] += v[1];\n this[2] += v[2];\n return this;\n }\n};\n\n\nconst t2 = [1, 2, 3];\nconst positions = new Float32Array(5000 * 3);\n\nconst vec3 = {\n set(src, offset, dst) {\n dst[0] = src[offset];\n dst[1] = src[offset + 1];\n dst[2] = src[offset + 2];\n return dst;\n },\n add(v1, v2, dst) {\n dst[0] = v1[0] + v2[0];\n dst[1] = v1[1] + v2[1];\n dst[2] = v1[2] + v2[2];\n return dst;\n },\n};\n\nfunction testRawTypedArray(positions) {\n const len = positions.length;\n for (let i = 0; i < len; i += 3) {\n const t = positions.slice(i, i + 3);\n vec3.add(t, t2, t);\n }\n}\n\nfunction testExtendedTypedArray(positions) {\n const len = positions.length;\n for (let i = 0; i < len; i += 3) {\n const t = new Vec3(positions.slice(i, i + 3));\n vec3.add(t, t2, t);\n }\n}\n\nfunction testExtendedTypedArrayWithAPI(positions) {\n const len = positions.length;\n for (let i = 0; i < len; i += 3) {\n const t = new Vec3Plus(positions.slice(i, i + 3));\n t.addInPlace(t2);\n }\n}\n\nfunction testExtendedTypedArrayWithAPI(positions) {\n const len = positions.length;\n for (let i = 0; i < len; i += 3) {\n const t = new Vec3Plus(positions.slice(i, i + 3));\n vec3.add(t, t2, t);\n }\n}\n\nfunction testRawTypedArrayViaTemp(positions) {\n const t = new Float32Array(3);\n const len = positions.length;\n for (let i = 0; i < len; i += 3) {\n vec3.set(positions, i, t);\n vec3.add(t, t2, t);\n positions.set(t, i);\n }\n}\n\nfunction testExtendedTypedArrayViaTemp(positions) {\n const t = new Vec3(3);\n const len = positions.length;\n for (let i = 0; i < len; i += 3) {\n vec3.set(positions, i, t);\n vec3.add(t, t2, t);\n positions.set(t, i);\n }\n}\n\nfunction testExtendedTypedArrayWithAPIViaTemp(positions) {\n const t = new Vec3Plus(3);\n const len = positions.length;\n for (let i = 0; i < len; i += 3) {\n t.set(positions, i);\n t.addInPlace(t2);\n positions.set(t, i);\n }\n}\n\n ","setup":"positions.fill(0);","tests":[{"name":"Native Float32Array","code":"testRawTypedArray(positions);\n","results":{"aborted":false,"count":254,"cycles":4,"hz":3042.176167725777,"stats":{"moe":0.0000029744974093832514,"rme":0.9048945129787791,"sem":0.0000015176007190730876,"deviation":0.000011852840524296286,"mean":0.0003287120616514344,"variance":1.4048982849440027e-10,"numSamples":61},"times":{"cycle":0.08349286365946433,"elapsed":6.327,"period":0.0003287120616514344,"timeStamp":1685701185613}},"platforms":{"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36":{"aborted":false,"count":254,"cycles":4,"hz":3042.176167725777,"stats":{"moe":0.0000029744974093832514,"rme":0.9048945129787791,"sem":0.0000015176007190730876,"deviation":0.000011852840524296286,"mean":0.0003287120616514344,"variance":1.4048982849440027e-10,"numSamples":61},"times":{"cycle":0.08349286365946433,"elapsed":6.327,"period":0.0003287120616514344,"timeStamp":1685701185613}},"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:103.0) Gecko/20100101 Firefox/103.0":{"aborted":false,"count":135,"cycles":4,"hz":1733.4348699313618,"stats":{"moe":0.000003282250431750571,"rme":0.5689567350243707,"sem":0.000001674617567219679,"deviation":0.000013501198456753723,"mean":0.0005768892834373388,"variance":1.822823597686491e-10,"numSamples":65},"times":{"cycle":0.07788005326404074,"elapsed":5.973,"period":0.0005768892834373388,"timeStamp":1685701007600}},"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.5 Safari/605.1.15":{"aborted":false,"count":976,"cycles":2,"hz":2885.776532835357,"stats":{"moe":0.000003099806986327412,"rme":0.8945350257462736,"sem":0.000001475395995396198,"deviation":0.000006431102045636629,"mean":0.00034652717860224325,"variance":4.135907352139164e-11,"numSamples":19},"times":{"cycle":0.3382105263157894,"elapsed":6.761,"period":0.00034652717860224325,"timeStamp":1685701108183}}}},{"name":"Extended Float32Array","code":"testExtendedTypedArray(positions);\n","results":{"aborted":false,"count":158,"cycles":6,"hz":1944.3527853341661,"stats":{"moe":0.0000066433829338005415,"rme":1.2917080111376549,"sem":0.0000033894810886737456,"deviation":0.000026903172102561596,"mean":0.0005143099583279251,"variance":7.237806691800486e-10,"numSamples":63},"times":{"cycle":0.08126097341581216,"elapsed":6.387,"period":0.0005143099583279251,"timeStamp":1685701191949}},"platforms":{"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36":{"aborted":false,"count":158,"cycles":6,"hz":1944.3527853341661,"stats":{"moe":0.0000066433829338005415,"rme":1.2917080111376549,"sem":0.0000033894810886737456,"deviation":0.000026903172102561596,"mean":0.0005143099583279251,"variance":7.237806691800486e-10,"numSamples":63},"times":{"cycle":0.08126097341581216,"elapsed":6.387,"period":0.0005143099583279251,"timeStamp":1685701191949}},"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:103.0) Gecko/20100101 Firefox/103.0":{"aborted":false,"count":55,"cycles":3,"hz":694.0786046996145,"stats":{"moe":0.000009185966524890578,"rme":0.637578282841342,"sem":0.000004686717614740091,"deviation":0.00003749374091792073,"mean":0.0014407590051457976,"variance":1.405780608020163e-9,"numSamples":64},"times":{"cycle":0.07924174528301887,"elapsed":5.903,"period":0.0014407590051457976,"timeStamp":1685701013580}},"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.5 Safari/605.1.15":{"aborted":false,"count":117,"cycles":5,"hz":1496.3456719758385,"stats":{"moe":0.00000329530451012005,"rme":0.4930914641560597,"sem":0.0000016812778112857398,"deviation":0.000013450222490285918,"mean":0.0006682947788926054,"variance":1.8090848503819312e-10,"numSamples":64},"times":{"cycle":0.07819048913043483,"elapsed":6.413,"period":0.0006682947788926054,"timeStamp":1685701114964}}}},{"name":"Extended Float32Array with API","code":"testExtendedTypedArrayWithAPI(positions);","results":{"aborted":false,"count":160,"cycles":5,"hz":1927.997748576624,"stats":{"moe":0.000003977952341888208,"rme":0.7669483159105572,"sem":0.0000020295675213715347,"deviation":0.0000158514290760227,"mean":0.0005186728048506625,"variance":2.5126780375217783e-10,"numSamples":61},"times":{"cycle":0.08298764877610601,"elapsed":6.282,"period":0.0005186728048506625,"timeStamp":1685701198350}},"platforms":{"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36":{"aborted":false,"count":160,"cycles":5,"hz":1927.997748576624,"stats":{"moe":0.000003977952341888208,"rme":0.7669483159105572,"sem":0.0000020295675213715347,"deviation":0.0000158514290760227,"mean":0.0005186728048506625,"variance":2.5126780375217783e-10,"numSamples":61},"times":{"cycle":0.08298764877610601,"elapsed":6.282,"period":0.0005186728048506625,"timeStamp":1685701198350}},"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:103.0) Gecko/20100101 Firefox/103.0":{"aborted":false,"count":976,"cycles":2,"hz":669.1233181935041,"stats":{"moe":0.000027926194058470956,"rme":1.8686067632919807,"sem":0.000011808115880960234,"deviation":0.00003339839524985418,"mean":0.0014944928278688525,"variance":1.1154528052654823e-9,"numSamples":8},"times":{"cycle":1.458625,"elapsed":11.775,"period":0.0014944928278688525,"timeStamp":1685701019490}},"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.5 Safari/605.1.15":{"aborted":false,"count":115,"cycles":5,"hz":1500.5931198102016,"stats":{"moe":0.0000027448837189808686,"rme":0.4118953623381731,"sem":0.0000014004508770310554,"deviation":0.000011377316708806407,"mean":0.0006664031620553359,"variance":1.2944333549248546e-10,"numSamples":66},"times":{"cycle":0.07663636363636363,"elapsed":6.306,"period":0.0006664031620553359,"timeStamp":1685701121398}}}},{"name":"Native Float32Array via temp","code":"testRawTypedArrayViaTemp(positions);\n","results":{"aborted":false,"count":976,"cycles":2,"hz":6601.637593449624,"stats":{"moe":9.919595683314263e-7,"rme":0.6548557577478804,"sem":5.061018205772583e-7,"deviation":0.000003119821149694543,"mean":0.0001514775668679897,"variance":9.73328400608138e-12,"numSamples":38},"times":{"cycle":0.14784210526315797,"elapsed":6.152,"period":0.0001514775668679897,"timeStamp":1685701204644}},"platforms":{"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36":{"aborted":false,"count":976,"cycles":2,"hz":6601.637593449624,"stats":{"moe":9.919595683314263e-7,"rme":0.6548557577478804,"sem":5.061018205772583e-7,"deviation":0.000003119821149694543,"mean":0.0001514775668679897,"variance":9.73328400608138e-12,"numSamples":38},"times":{"cycle":0.14784210526315797,"elapsed":6.152,"period":0.0001514775668679897,"timeStamp":1685701204644}},"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:103.0) Gecko/20100101 Firefox/103.0":{"aborted":false,"count":976,"cycles":2,"hz":3661.990212071777,"stats":{"moe":0.00000203870806028676,"rme":0.7465728962041953,"sem":9.82983635625246e-7,"deviation":0.000004714223906632098,"mean":0.00027307555238774065,"variance":2.22239070418616e-11,"numSamples":23},"times":{"cycle":0.26652173913043486,"elapsed":6.35,"period":0.00027307555238774065,"timeStamp":1685701031272}},"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.5 Safari/605.1.15":{"aborted":false,"count":419,"cycles":4,"hz":5467.834324013834,"stats":{"moe":7.891434626265308e-7,"rme":0.43149057115204736,"sem":4.0262421562578104e-7,"deviation":0.000003295621239395458,"mean":0.00018288776519949837,"variance":1.0861119353554455e-11,"numSamples":67},"times":{"cycle":0.07662997361858982,"elapsed":6.286,"period":0.00018288776519949837,"timeStamp":1685701127722}}}},{"name":"Extended Float32Array via temp","code":"testExtendedTypedArrayViaTemp(positions);\n","results":{"aborted":false,"count":976,"cycles":2,"hz":6414.209591474244,"stats":{"moe":0.0000016897257061614012,"rme":1.083825483142105,"sem":8.621049521231639e-7,"deviation":0.000005243979699959322,"mean":0.0001559038546743465,"variance":2.7499323093585456e-11,"numSamples":37},"times":{"cycle":0.1521621621621622,"elapsed":6.142,"period":0.0001559038546743465,"timeStamp":1685701210805}},"platforms":{"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36":{"aborted":false,"count":976,"cycles":2,"hz":6414.209591474244,"stats":{"moe":0.0000016897257061614012,"rme":1.083825483142105,"sem":8.621049521231639e-7,"deviation":0.000005243979699959322,"mean":0.0001559038546743465,"variance":2.7499323093585456e-11,"numSamples":37},"times":{"cycle":0.1521621621621622,"elapsed":6.142,"period":0.0001559038546743465,"timeStamp":1685701210805}},"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:103.0) Gecko/20100101 Firefox/103.0":{"aborted":false,"count":292,"cycles":4,"hz":3668.766362528673,"stats":{"moe":0.0000023217031165155805,"rme":0.851778629765035,"sem":0.0000011845424063855003,"deviation":0.000009402013874118128,"mean":0.0002725711863839584,"variance":8.839786488910976e-11,"numSamples":63},"times":{"cycle":0.07959078642411585,"elapsed":5.964,"period":0.0002725711863839584,"timeStamp":1685701037628}},"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.5 Safari/605.1.15":{"aborted":false,"count":976,"cycles":2,"hz":5627.817578193254,"stats":{"moe":0.0000010341899348838906,"rme":0.5820232294730097,"sem":5.276479259611687e-7,"deviation":0.000003031106565999793,"mean":0.00017768877297565826,"variance":9.187607014447056e-12,"numSamples":33},"times":{"cycle":0.17342424242424245,"elapsed":6.956,"period":0.00017768877297565826,"timeStamp":1685701134043}}}},{"name":"Extended Float32Array with API via temp","code":"testExtendedTypedArrayWithAPIViaTemp(positions);","results":{"aborted":false,"count":976,"cycles":2,"hz":4171.625842511918,"stats":{"moe":0.000002005698023685528,"rme":0.8367021707881629,"sem":9.73639817323072e-7,"deviation":0.000004964608427741258,"mean":0.00023971469104665832,"variance":2.4647336840799525e-11,"numSamples":26},"times":{"cycle":0.23396153846153853,"elapsed":6.461,"period":0.00023971469104665832,"timeStamp":1685701216956}},"platforms":{"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36":{"aborted":false,"count":976,"cycles":2,"hz":4171.625842511918,"stats":{"moe":0.000002005698023685528,"rme":0.8367021707881629,"sem":9.73639817323072e-7,"deviation":0.000004964608427741258,"mean":0.00023971469104665832,"variance":2.4647336840799525e-11,"numSamples":26},"times":{"cycle":0.23396153846153853,"elapsed":6.461,"period":0.00023971469104665832,"timeStamp":1685701216956}},"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:103.0) Gecko/20100101 Firefox/103.0":{"aborted":false,"count":976,"cycles":2,"hz":3689.6778435239967,"stats":{"moe":0.000003670579474362034,"rme":1.3543255759447557,"sem":0.0000017698068825274997,"deviation":0.000008487695637401193,"mean":0.00027102637205987174,"variance":7.204097723315925e-11,"numSamples":23},"times":{"cycle":0.2645217391304348,"elapsed":6.312,"period":0.00027102637205987174,"timeStamp":1685701043599}},"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.5 Safari/605.1.15":{"aborted":false,"count":976,"cycles":2,"hz":5544.470086987396,"stats":{"moe":0.000001702494293924851,"rme":0.9439428685933063,"sem":8.686195377167607e-7,"deviation":0.000004913654123125165,"mean":0.00018035988729508197,"variance":2.414399684170493e-11,"numSamples":32},"times":{"cycle":0.17603125,"elapsed":6.753,"period":0.00018035988729508197,"timeStamp":1685701141034}}}}]} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment