# Model Name: MacBook Pro

# Model Identifier: MacBookPro10,1

# Processor Name: Intel Core i7

# Processor Speed: 2.3 GHz

# Number of Processors: 1

# Total Number of Cores: 4

# L2 Cache (per Core): 256 KB

# L3 Cache: 6 MB

# Memory: 8 GB

# Boot ROM Version: MBP101.00EE.B02

# go1

benchmark old ns/op new ns/op delta

BenchmarkBinaryTree17 4311986761 3797832239 -11.92%

BenchmarkFannkuch11 3283550944 2785309314 -15.17%

BenchmarkFmtFprintfEmpty 93.9 76.3 -18.74%

BenchmarkFmtFprintfString 226 238 5.31%

BenchmarkFmtFprintfInt 195 177 -9.23%

BenchmarkFmtFprintfIntInt 308 291 -5.52%

BenchmarkFmtFprintfPrefixedInt 295 270 -8.47%

BenchmarkFmtFprintfFloat 423 393 -7.09%

BenchmarkFmtManyArgs 1146 1250 9.08%

BenchmarkGobDecode 8536553 8343514 -2.26%

BenchmarkGobEncode 4848838 5127308 5.74%

BenchmarkGzip 439807071 426876600 -2.94%

BenchmarkGunzip 106658957 108322341 1.56%

BenchmarkHTTPClientServer 78404 76214 -2.79%

BenchmarkJSONEncode 23326897 21984095 -5.76%

BenchmarkJSONDecode 94996676 78639819 -17.22%

BenchmarkMandelbrot200 4668022 4664292 -0.08%

BenchmarkGoParse 4909975 4650051 -5.29%

BenchmarkRegexpMatchEasy0_32 130 135 3.85%

BenchmarkRegexpMatchEasy0_1K 349 340 -2.58%

BenchmarkRegexpMatchEasy1_32 106 107 0.94%

BenchmarkRegexpMatchEasy1_1K 858 880 2.56%

BenchmarkRegexpMatchMedium_32 190 209 10.00%

BenchmarkRegexpMatchMedium_1K 66736 70516 5.66%

BenchmarkRegexpMatchHard_32 3196 3434 7.45%

BenchmarkRegexpMatchHard_1K 104456 116322 11.36%

BenchmarkRevcomp 761667618 766281307 0.61%

BenchmarkTemplate 110260028 114084050 3.47%

BenchmarkTimeParse 453 442 -2.43%

BenchmarkTimeFormat 449 416 -7.35%

benchmark old MB/s new MB/s speedup

BenchmarkGobDecode 89.91 91.99 1.02x

BenchmarkGobEncode 158.29 149.70 0.95x

BenchmarkGzip 44.12 45.46 1.03x

BenchmarkGunzip 181.93 179.14 0.98x

BenchmarkJSONEncode 83.19 88.27 1.06x

BenchmarkJSONDecode 20.43 24.68 1.21x

BenchmarkGoParse 11.80 12.46 1.06x

BenchmarkRegexpMatchEasy0_32 244.62 236.81 0.97x

BenchmarkRegexpMatchEasy0_1K 2930.48 3010.04 1.03x

BenchmarkRegexpMatchEasy1_32 301.68 297.06 0.98x

BenchmarkRegexpMatchEasy1_1K 1192.54 1163.60 0.98x

BenchmarkRegexpMatchMedium_32 5.25 4.78 0.91x

BenchmarkRegexpMatchMedium_1K 15.34 14.52 0.95x

BenchmarkRegexpMatchHard_32 10.01 9.32 0.93x

BenchmarkRegexpMatchHard_1K 9.80 8.80 0.90x

BenchmarkRevcomp 333.70 331.69 0.99x

BenchmarkTemplate 17.60 17.01 0.97x

# runtime

benchmark old ns/op new ns/op delta

BenchmarkAppend 98.3 48.0 -51.17%

BenchmarkAppend1Byte 125 130 4.00%

BenchmarkAppend4Bytes 122 118 -3.28%

BenchmarkAppend8Bytes 121 118 -2.48%

BenchmarkAppend16Bytes 124 123 -0.81%

BenchmarkAppend32Bytes 122 120 -1.64%

BenchmarkAppendSpecialCase 35.7 28.2 -21.01%

BenchmarkSelectUncontended 262 222 -15.27%

BenchmarkSelectContended 259 227 -12.36%

BenchmarkSelectNonblock 119 114 -4.20%

BenchmarkChanUncontended 72.9 63.8 -12.48%

BenchmarkChanContended 69.8 65.9 -5.59%

BenchmarkChanSync 152 138 -9.21%

BenchmarkChanProdCons0 153 145 -5.23%

BenchmarkChanProdCons10 91.9 89.0 -3.16%

BenchmarkChanProdCons100 70.2 67.9 -3.28%

BenchmarkChanProdConsWork0 676 541 -19.97%

BenchmarkChanProdConsWork10 603 482 -20.07%

BenchmarkChanProdConsWork100 575 461 -19.83%

BenchmarkChanCreation 171 179 4.68%

BenchmarkChanSem 64.9 61.6 -5.08%

BenchmarkCallClosure 2.46 3.91 58.94%

BenchmarkCallClosure1 3.45 4.26 23.48%

BenchmarkCallClosure2 37.4 27.6 -26.20%

BenchmarkCallClosure3 38.2 30.9 -19.11%

BenchmarkCallClosure4 38.8 29.3 -24.48%

BenchmarkComplex128DivNormal 19.1 20.1 5.24%

BenchmarkComplex128DivNisNaN 13.9 16.2 16.55%

BenchmarkComplex128DivDisNaN 14.3 15.6 9.09%

BenchmarkComplex128DivNisInf 9.59 10.5 9.49%

BenchmarkComplex128DivDisInf 10.2 11.9 16.67%

BenchmarkConvT2ESmall 10.0 10.7 7.00%

BenchmarkConvT2EUintptr 0.63 0.63 0.00%

BenchmarkConvT2ELarge 50.8 58.6 15.35%

BenchmarkConvT2ISmall 11.7 12.0 2.56%

BenchmarkConvT2IUintptr 1.10 1.09 -0.91%

BenchmarkConvT2ILarge 54.2 61.6 13.65%

BenchmarkConvI2E 3.86 4.72 22.28%

BenchmarkConvI2I 18.1 17.3 -4.42%

BenchmarkAssertE2T 11.3 11.4 0.88%

BenchmarkAssertE2TLarge 12.6 13.0 3.17%

BenchmarkAssertE2I 18.4 19.2 4.35%

BenchmarkAssertI2T 12.1 12.3 1.65%

BenchmarkAssertI2I 18.4 17.8 -3.26%

BenchmarkAssertI2E 4.65 4.69 0.86%

BenchmarkAssertE2E 0.62 0.78 25.81%

BenchmarkMalloc8 35.7 24.7 -30.81%

BenchmarkMalloc16 41.3 39.4 -4.60%

BenchmarkMallocTypeInfo8 55.6 52.7 -5.22%

BenchmarkMallocTypeInfo16 61.6 56.4 -8.44%

BenchmarkHashStringSpeed 26.7 26.7 0.00%

BenchmarkHashInt32Speed 16.6 16.4 -1.20%

BenchmarkHashInt64Speed 16.9 17.6 4.14%

BenchmarkHashStringArraySpeed 86.6 70.7 -18.36%

BenchmarkMegMap 23.7 21.6 -8.86%

BenchmarkMegOneMap 17.4 14.6 -16.09%

BenchmarkMegEqMap 72530 71050 -2.04%

BenchmarkMegEmptyMap 4.16 4.42 6.25%

BenchmarkSmallStrMap 20.1 22.4 11.44%

BenchmarkMapStringKeysEight_16 21.3 21.5 0.94%

BenchmarkMapStringKeysEight_32 22.1 22.6 2.26%

BenchmarkMapStringKeysEight_64 21.9 22.5 2.74%

BenchmarkMapStringKeysEight_1M 22.0 22.7 3.18%

BenchmarkIntMap 21.8 20.5 -5.96%

BenchmarkRepeatedLookupStrMapKey32 39.3 39.7 1.02%

BenchmarkRepeatedLookupStrMapKey1M 338182 330573 -2.25%

BenchmarkNewEmptyMap 124 128 3.23%

BenchmarkMemmove32 5.02 5.59 11.35%

BenchmarkMemmove4K 108 109 0.93%

BenchmarkMemmove64K 2745 2581 -5.97%

BenchmarkMemmove4M 653278 507328 -22.34%

BenchmarkMemmove64M 12290139 11323556 -7.86%

BenchmarkFinalizer 160 1284 702.50%

BenchmarkFinalizerRun 632 2236 253.80%

BenchmarkStackGrowth 586 491 -16.21%

BenchmarkStackGrowthDeep 88356 67548 -23.55%

BenchmarkCreateGoroutines 134 92.8 -30.75%

BenchmarkCreateGoroutinesParallel 130 92.5 -28.85%

BenchmarkMatmult 13.1 6.06 -53.74%

BenchmarkIfaceCmp100 221 119 -46.15%

BenchmarkIfaceCmpNil100 167 173 3.59%

BenchmarkDefer 81.7 49.3 -39.66%

BenchmarkDefer10 73.9 43.4 -41.27%

BenchmarkDeferMany 147 2389 1525.17%

BenchmarkCompareStringEqual 10.5 7.08 -32.57%

BenchmarkCompareStringIdentical 4.63 3.54 -23.54%

BenchmarkCompareStringSameLength 9.40 6.82 -27.45%

BenchmarkCompareStringDifferentLength 1.89 0.96 -49.21%

BenchmarkCompareStringBigUnaligned 76068 77312 1.64%

BenchmarkCompareStringBig 72499 69889 -3.60%

benchmark old MB/s new MB/s speedup

BenchmarkMemmove32 6380.33 5728.01 0.90x

BenchmarkMemmove4K 37863.44 37478.19 0.99x

BenchmarkMemmove64K 23871.46 25386.03 1.06x

BenchmarkMemmove4M 6420.39 8267.43 1.29x

BenchmarkMemmove64M 5460.38 5926.48 1.09x

BenchmarkCompareStringBigUnaligned 13784.75 13562.99 0.98x

BenchmarkCompareStringBig 14463.31 15003.44 1.04x

# http

benchmark old ns/op new ns/op delta

BenchmarkHeaderWriteSubset 1031 927 -10.09%

BenchmarkReadRequestChrome 6062 5564 -8.22%

BenchmarkReadRequestCurl 3251 3035 -6.64%

BenchmarkReadRequestApachebench 3123 3080 -1.38%

BenchmarkReadRequestSiege 4104 4047 -1.39%

BenchmarkReadRequestWrk 2337 2287 -2.14%

BenchmarkClientServer 89951 89746 -0.23%

BenchmarkClientServerParallel4 63052 56782 -9.94%

BenchmarkClientServerParallel64 51786 52877 2.11%

BenchmarkServer 90665 89358 -1.44%

BenchmarkServerFakeConnNoKeepAlive 11743 10731 -8.62%

BenchmarkServerFakeConnWithKeepAlive 10925 8787 -19.57%

BenchmarkServerFakeConnWithKeepAliveLite 6336 5698 -10.07%

BenchmarkServerHandlerTypeLen 7368 7160 -2.82%

BenchmarkServerHandlerNoLen 6523 6522 -0.02%

BenchmarkServerHandlerNoType 7367 6861 -6.87%

BenchmarkServerHandlerNoHeader 5702 5358 -6.03%

benchmark old MB/s new MB/s speedup

BenchmarkReadRequestChrome 100.78 109.81 1.09x

BenchmarkReadRequestCurl 23.99 25.69 1.07x

BenchmarkReadRequestApachebench 26.25 26.62 1.01x

BenchmarkReadRequestSiege 36.79 37.30 1.01x

BenchmarkReadRequestWrk 17.12 17.49 1.02x

# floats

benchmark old ns/op new ns/op delta

BenchmarkMinSmall 13.5 12.6 -6.67%

BenchmarkMinMed 689 704 2.18%

BenchmarkMinLarge 64785 68581 5.86%

BenchmarkMinHuge 7824170 7704735 -1.53%

BenchmarkAddTwoSmall 22.9 22.3 -2.62%

BenchmarkAddFourSmall 48.8 44.2 -9.43%

BenchmarkAddTwoMed 977 983 0.61%

BenchmarkAddFourMed 2896 2926 1.04%

BenchmarkAddTwoLarge 96016 99927 4.07%

BenchmarkAddFourLarge 289516 313821 8.40%

BenchmarkAddTwoHuge 14318397 14849045 3.71%

BenchmarkAddFourHuge 45467835 45484622 0.04%

BenchmarkLogSumExpSmall 253 259 2.37%

BenchmarkLogSumExpMed 18829 19510 3.62%

BenchmarkLogSumExpLarge 1904116 1914121 0.53%

BenchmarkLogSumExpHuge 188994056 191642024 1.40%

BenchmarkDotSmall 18.2 14.9 -18.13%

BenchmarkDotMed 980 968 -1.22%

BenchmarkDotLarge 96102 95302 -0.83%

BenchmarkDotHuge 11966392 12457009 4.10%

# cipher

benchmark old ns/op new ns/op delta

BenchmarkAESCFBEncrypt 7262 3833 -47.22%

BenchmarkAESCFBDecrypt 7040 4074 -42.13%

BenchmarkAESOFB 6542 2725 -58.35%

BenchmarkAESCTR 6089 2421 -60.24%

BenchmarkAESCBCEncrypt 5725 3113 -45.62%

BenchmarkAESCBCDecrypt 8143 2992 -63.26%

benchmark old MB/s new MB/s speedup

BenchmarkAESCFBEncrypt 140.86 266.89 1.89x

BenchmarkAESCFBDecrypt 145.30 251.08 1.73x

BenchmarkAESOFB 156.36 375.40 2.40x

BenchmarkAESCTR 168.01 422.41 2.51x

BenchmarkAESCBCEncrypt 178.85 328.85 1.84x

BenchmarkAESCBCDecrypt 125.75 342.18 2.72x

#megajson

benchmark old ns/op new ns/op delta

BenchmarkCodeEncoder 13639228 13436294 -1.49%

BenchmarkCodeDecoder 50814265 52303998 2.93%

benchmark old MB/s new MB/s speedup

BenchmarkCodeEncoder 142.27 144.42 1.02x

BenchmarkCodeDecoder 38.19 37.10 0.97x

#snappy

benchmark old ns/op new ns/op delta

BenchmarkWordsDecode1e3 2448 2182 -10.87%

BenchmarkWordsDecode1e4 35086 29358 -16.33%

BenchmarkWordsDecode1e5 453441 418561 -7.69%

BenchmarkWordsDecode1e6 4445732 4140350 -6.87%

BenchmarkWordsEncode1e3 9872 9144 -7.37%

BenchmarkWordsEncode1e4 67432 71703 6.33%

BenchmarkWordsEncode1e5 830299 834070 0.45%

BenchmarkWordsEncode1e6 8070029 8291087 2.74%

benchmark old MB/s new MB/s speedup

BenchmarkWordsDecode1e3 408.39 458.28 1.12x

BenchmarkWordsDecode1e4 285.01 340.62 1.20x

BenchmarkWordsDecode1e5 220.54 238.91 1.08x

BenchmarkWordsDecode1e6 224.93 241.53 1.07x

BenchmarkWordsEncode1e3 101.29 109.35 1.08x

BenchmarkWordsEncode1e4 148.30 139.46 0.94x

BenchmarkWordsEncode1e5 120.44 119.89 1.00x

BenchmarkWordsEncode1e6 123.92 120.61 0.97x