4 Commits

Author	SHA1	Message	Date
Keith Randall	a5d4024139	runtime: faster & safer hash function ... Uses AES hardware instructions on 386/amd64 to implement a fast hash function. Incorporates a random key to thwart hash collision DOS attacks. Depends on CL#7548043 for new assembly instructions. Update #3885 Helps some by making hashing faster. Go time drops from 0.65s to 0.51s. R=rsc, r, bradfitz, remyoudompheng, khr, dsymonds, minux.ma, elias.naur CC=golang-dev https://golang.org/cl/7543043	2013-03-12 10:47:44 -07:00
Anthony Martin	2b39e418be	all: clean up C function prototypes ... R=minux.ma, rsc, akumar, bradfitz CC=golang-dev https://golang.org/cl/7313070	2013-02-26 09:51:33 -08:00
Shenghou Ma	4022fc4e21	runtime: use vDSO clock_gettime for time.now & runtime.nanotime on Linux/amd64 ... Performance improvement aside, time.Now() now gets real nanosecond resolution on supported systems. Benchmark done on Core i7-2600 @ 3.40GHz with kernel 3.5.2-gentoo. original vDSO gettimeofday: BenchmarkNow 100000000 27.4 ns/op new vDSO gettimeofday fallback: BenchmarkNow 100000000 27.6 ns/op new vDSO clock_gettime: BenchmarkNow 100000000 24.4 ns/op R=golang-dev, bradfitz, iant, iant CC=golang-dev https://golang.org/cl/6814103	2012-11-09 14:19:07 +08:00
Ivan Krasin	5287175ad9	runtime: add vdso support for linux/amd64. Fixes issue 1933. ... R=iant, imkrasin, krasin, iant, minux.ma, rsc, nigeltao, r, fullung CC=golang-dev https://golang.org/cl/6454046	2012-08-31 18:07:04 -04:00