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Aliaksandr Valialkin 187afdebef math/big: re-use memory in Int.GCD 
This improves TLS handshake performance.

benchmark                                 old ns/op     new ns/op     delta
BenchmarkGCD10x10/WithoutXY-4             965           968           +0.31%
BenchmarkGCD10x10/WithXY-4                1813          1391          -23.28%
BenchmarkGCD10x100/WithoutXY-4            1093          1075          -1.65%
BenchmarkGCD10x100/WithXY-4               2348          1676          -28.62%
BenchmarkGCD10x1000/WithoutXY-4           1569          1565          -0.25%
BenchmarkGCD10x1000/WithXY-4              4262          3242          -23.93%
BenchmarkGCD10x10000/WithoutXY-4          6069          6066          -0.05%
BenchmarkGCD10x10000/WithXY-4             12123         11331         -6.53%
BenchmarkGCD10x100000/WithoutXY-4         52664         52610         -0.10%
BenchmarkGCD10x100000/WithXY-4            97494         95649         -1.89%
BenchmarkGCD100x100/WithoutXY-4           5244          5228          -0.31%
BenchmarkGCD100x100/WithXY-4              22572         18630         -17.46%
BenchmarkGCD100x1000/WithoutXY-4          6143          6233          +1.47%
BenchmarkGCD100x1000/WithXY-4             24652         19357         -21.48%
BenchmarkGCD100x10000/WithoutXY-4         15725         15804         +0.50%
BenchmarkGCD100x10000/WithXY-4            60552         55973         -7.56%
BenchmarkGCD100x100000/WithoutXY-4        107008        107853        +0.79%
BenchmarkGCD100x100000/WithXY-4           349597        340994        -2.46%
BenchmarkGCD1000x1000/WithoutXY-4         63785         64434         +1.02%
BenchmarkGCD1000x1000/WithXY-4            373186        334035        -10.49%
BenchmarkGCD1000x10000/WithoutXY-4        78038         78241         +0.26%
BenchmarkGCD1000x10000/WithXY-4           543692        507034        -6.74%
BenchmarkGCD1000x100000/WithoutXY-4       205607        207727        +1.03%
BenchmarkGCD1000x100000/WithXY-4          2488113       2415323       -2.93%
BenchmarkGCD10000x10000/WithoutXY-4       1731340       1714992       -0.94%
BenchmarkGCD10000x10000/WithXY-4          10601046      7111329       -32.92%
BenchmarkGCD10000x100000/WithoutXY-4      2239155       2212173       -1.21%
BenchmarkGCD10000x100000/WithXY-4         30097040      26538887      -11.82%
BenchmarkGCD100000x100000/WithoutXY-4     119845326     119863916     +0.02%
BenchmarkGCD100000x100000/WithXY-4        768006543     426795966     -44.43%

benchmark                                 old allocs     new allocs     delta
BenchmarkGCD10x10/WithoutXY-4             5              5              +0.00%
BenchmarkGCD10x10/WithXY-4                17             9              -47.06%
BenchmarkGCD10x100/WithoutXY-4            6              6              +0.00%
BenchmarkGCD10x100/WithXY-4               21             9              -57.14%
BenchmarkGCD10x1000/WithoutXY-4           6              6              +0.00%
BenchmarkGCD10x1000/WithXY-4              30             12             -60.00%
BenchmarkGCD10x10000/WithoutXY-4          6              6              +0.00%
BenchmarkGCD10x10000/WithXY-4             26             12             -53.85%
BenchmarkGCD10x100000/WithoutXY-4         6              6              +0.00%
BenchmarkGCD10x100000/WithXY-4            28             12             -57.14%
BenchmarkGCD100x100/WithoutXY-4           5              5              +0.00%
BenchmarkGCD100x100/WithXY-4              183            61             -66.67%
BenchmarkGCD100x1000/WithoutXY-4          8              8              +0.00%
BenchmarkGCD100x1000/WithXY-4             170            47             -72.35%
BenchmarkGCD100x10000/WithoutXY-4         8              8              +0.00%
BenchmarkGCD100x10000/WithXY-4            200            67             -66.50%
BenchmarkGCD100x100000/WithoutXY-4        8              8              +0.00%
BenchmarkGCD100x100000/WithXY-4           188            65             -65.43%
BenchmarkGCD1000x1000/WithoutXY-4         5              5              +0.00%
BenchmarkGCD1000x1000/WithXY-4            2435           1193           -51.01%
BenchmarkGCD1000x10000/WithoutXY-4        8              8              +0.00%
BenchmarkGCD1000x10000/WithXY-4           2211           1076           -51.33%
BenchmarkGCD1000x100000/WithoutXY-4       8              8              +0.00%
BenchmarkGCD1000x100000/WithXY-4          2271           1108           -51.21%
BenchmarkGCD10000x10000/WithoutXY-4       5              5              +0.00%
BenchmarkGCD10000x10000/WithXY-4          23183          11605          -49.94%
BenchmarkGCD10000x100000/WithoutXY-4      8              8              +0.00%
BenchmarkGCD10000x100000/WithXY-4         23421          11717          -49.97%
BenchmarkGCD100000x100000/WithoutXY-4     5              5              +0.00%
BenchmarkGCD100000x100000/WithXY-4        232976         116815         -49.86%

benchmark                                 old bytes      new bytes     delta
BenchmarkGCD10x10/WithoutXY-4             208            208           +0.00%
BenchmarkGCD10x10/WithXY-4                736            432           -41.30%
BenchmarkGCD10x100/WithoutXY-4            256            256           +0.00%
BenchmarkGCD10x100/WithXY-4               896            432           -51.79%
BenchmarkGCD10x1000/WithoutXY-4           368            368           +0.00%
BenchmarkGCD10x1000/WithXY-4              1856           1152          -37.93%
BenchmarkGCD10x10000/WithoutXY-4          1616           1616          +0.00%
BenchmarkGCD10x10000/WithXY-4             7920           7376          -6.87%
BenchmarkGCD10x100000/WithoutXY-4         13776          13776         +0.00%
BenchmarkGCD10x100000/WithXY-4            68800          68176         -0.91%
BenchmarkGCD100x100/WithoutXY-4           208            208           +0.00%
BenchmarkGCD100x100/WithXY-4              6960           2112          -69.66%
BenchmarkGCD100x1000/WithoutXY-4          544            560           +2.94%
BenchmarkGCD100x1000/WithXY-4             7280           2400          -67.03%
BenchmarkGCD100x10000/WithoutXY-4         2896           2912          +0.55%
BenchmarkGCD100x10000/WithXY-4            15280          10002         -34.54%
BenchmarkGCD100x100000/WithoutXY-4        27344          27365         +0.08%
BenchmarkGCD100x100000/WithXY-4           88288          83427         -5.51%
BenchmarkGCD1000x1000/WithoutXY-4         544            544           +0.00%
BenchmarkGCD1000x1000/WithXY-4            178288         40043         -77.54%
BenchmarkGCD1000x10000/WithoutXY-4        3344           3136          -6.22%
BenchmarkGCD1000x10000/WithXY-4           188720         54432         -71.16%
BenchmarkGCD1000x100000/WithoutXY-4       27792          27592         -0.72%
BenchmarkGCD1000x100000/WithXY-4          373872         239447        -35.95%
BenchmarkGCD10000x10000/WithoutXY-4       4288           4288          +0.00%
BenchmarkGCD10000x10000/WithXY-4          11935584       481875        -95.96%
BenchmarkGCD10000x100000/WithoutXY-4      31296          28834         -7.87%
BenchmarkGCD10000x100000/WithXY-4         13237088       1662620       -87.44%
BenchmarkGCD100000x100000/WithoutXY-4     40768          40768         +0.00%
BenchmarkGCD100000x100000/WithXY-4        1165518864     14256010      -98.78%

Change-Id: I652b3244bd074a03f3bc9a87c282330f9e5f1507
Reviewed-on: https://go-review.googlesource.com/21506
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2016-04-07 17:19:37 +00:00
..
big math/big: re-use memory in Int.GCD 2016-04-07 17:19:37 +00:00
cmplx math/cmplx: added clarifying comment 2016-03-21 16:18:38 +00:00
rand testing: implement 'Unordered Output' in Examples. 2016-03-09 04:34:41 +00:00
abs.go math: fix typo and braino in my earlier commit 2015-10-29 21:12:08 +00:00
acosh.go all: single space after period. 2016-03-02 00:13:47 +00:00
all_test.go all: delete dead test code 2016-03-21 07:10:08 +00:00
asin_386.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
asin_amd64.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
asin_amd64p32.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
asin_arm.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
asin.go
asinh.go all: single space after period. 2016-03-02 00:13:47 +00:00
atan2_386.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
atan2_amd64.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
atan2_amd64p32.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
atan2_arm.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
atan2.go
atan_386.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
atan_amd64.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
atan_amd64p32.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
atan_arm.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
atan.go
atanh.go all: single space after period. 2016-03-02 00:13:47 +00:00
bits.go
cbrt.go
const.go
copysign.go
dim_386.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
dim_amd64.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
dim_amd64p32.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
dim_arm.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
dim_s390x.s math: add functions and stubs for s390x 2016-04-06 23:35:56 +00:00
dim.go
erf.go all: single space after period. 2016-03-02 00:13:47 +00:00
exp2_386.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
exp2_amd64.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
exp2_amd64p32.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
exp2_arm.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
exp_386.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
exp_amd64.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
exp_amd64p32.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
exp_arm.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
exp.go all: single space after period. 2016-03-02 00:13:47 +00:00
expm1_386.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
expm1_amd64.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
expm1_amd64p32.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
expm1_arm.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
expm1.go all: single space after period. 2016-03-02 00:13:47 +00:00
export_test.go all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
floor_386.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
floor_amd64.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
floor_amd64p32.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
floor_arm.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
floor_asm.go math: optimize ceil/floor functions on amd64 2015-10-03 15:55:08 +00:00
floor.go
frexp_386.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
frexp_amd64.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
frexp_amd64p32.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
frexp_arm.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
frexp.go
gamma.go all: single space after period. 2016-03-02 00:13:47 +00:00
hypot_386.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
hypot_amd64.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
hypot_amd64p32.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
hypot_arm.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
hypot.go
j0.go all: single space after period. 2016-03-02 00:13:47 +00:00
j1.go all: single space after period. 2016-03-02 00:13:47 +00:00
jn.go all: single space after period. 2016-03-02 00:13:47 +00:00
ldexp_386.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
ldexp_amd64.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
ldexp_amd64p32.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
ldexp_arm.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
ldexp.go
lgamma.go all: single space after period. 2016-03-02 00:13:47 +00:00
log1p_386.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
log1p_amd64.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
log1p_amd64p32.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
log1p_arm.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
log1p.go all: single space after period. 2016-03-02 00:13:47 +00:00
log10_386.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
log10_amd64.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
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log10_arm.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
log10.go
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log_arm.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
log.go all: single space after period. 2016-03-02 00:13:47 +00:00
logb.go
mod_386.s
mod_amd64.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
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mod.go
modf_386.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
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modf.go all: single space after period. 2016-03-02 00:13:47 +00:00
nextafter.go
pow10.go
pow.go
remainder_386.s
remainder_amd64.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
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remainder_arm.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
remainder.go all: single space after period. 2016-03-02 00:13:47 +00:00
signbit.go
sin_386.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
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sin.go
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sincos.go
sinh.go
sqrt_386.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
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sqrt_ppc64x.s math: improve sqrt for ppc64le,ppc64 2016-03-10 15:01:21 +00:00
sqrt_s390x.s math: add functions and stubs for s390x 2016-04-06 23:35:56 +00:00
sqrt.go math: delete unused function sqrtC 2016-03-03 02:29:09 +00:00
stubs_arm64.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
stubs_mips64x.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
stubs_ppc64x.s math: improve sqrt for ppc64le,ppc64 2016-03-10 15:01:21 +00:00
stubs_s390x.s math: add functions and stubs for s390x 2016-04-06 23:35:56 +00:00
tan_386.s all: make copyright headers consistent with one space after period 2016-03-01 23:34:33 +00:00
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tan.go
tanh.go
unsafe.go