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Russ Cox authored
This more closely restores what the old C runtime did. (In C, g was an 'extern register' with the same effective implementation as in this CL.) On a late 2012 MacBookPro10,2, best of 5 old vs best of 5 new: benchmark old ns/op new ns/op delta BenchmarkBinaryTree17 4981312777 4463426605 -10.40% BenchmarkFannkuch11 3046495712 3006819428 -1.30% BenchmarkFmtFprintfEmpty 89.3 79.8 -10.64% BenchmarkFmtFprintfString 284 262 -7.75% BenchmarkFmtFprintfInt 282 262 -7.09% BenchmarkFmtFprintfIntInt 480 448 -6.67% BenchmarkFmtFprintfPrefixedInt 382 358 -6.28% BenchmarkFmtFprintfFloat 529 486 -8.13% BenchmarkFmtManyArgs 1849 1773 -4.11% BenchmarkGobDecode 12835963 11794385 -8.11% BenchmarkGobEncode 10527170 10288422 -2.27% BenchmarkGzip 436109569 438422516 +0.53% BenchmarkGunzip 110121663 109843648 -0.25% BenchmarkHTTPClientServer 81930 85446 +4.29% BenchmarkJSONEncode 24638574 24280603 -1.45% BenchmarkJSONDecode 93022423 85753546 -7.81% BenchmarkMandelbrot200 4703899 4735407 +0.67% BenchmarkGoParse 5319853 5086843 -4.38% BenchmarkRegexpMatchEasy0_32 151 151 +0.00% BenchmarkRegexpMatchEasy0_1K 452 453 +0.22% BenchmarkRegexpMatchEasy1_32 131 132 +0.76% BenchmarkRegexpMatchEasy1_1K 761 722 -5.12% BenchmarkRegexpMatchMedium_32 228 224 -1.75% BenchmarkRegexpMatchMedium_1K 63751 64296 +0.85% BenchmarkRegexpMatchHard_32 3188 3238 +1.57% BenchmarkRegexpMatchHard_1K 95396 96756 +1.43% BenchmarkRevcomp 661587262 687107364 +3.86% BenchmarkTemplate 108312598 104008540 -3.97% BenchmarkTimeParse 453 459 +1.32% BenchmarkTimeFormat 475 441 -7.16% The garbage benchmark from the benchmarks subrepo gets 2.6% faster as well. Change-Id: I320aeda332db81012688b26ffab23f6581c59cfa Reviewed-on: https://go-review.googlesource.com/8460Reviewed-by:
Rick Hudson <rlh@golang.org> Run-TryBot: Rick Hudson <rlh@golang.org> Reviewed-by:
Austin Clements <austin@google.com>
92c826b1
