Dmitriy Vyukov
353ce60f6e
runtime: implement local work queues (in preparation for new scheduler)
...
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/7402047
2013-02-23 08:48:02 +04:00
Dmitriy Vyukov
95643647ae
runtime: add parallel for algorithm
...
This is factored out part of:
https://golang.org/cl/5279048/
(parallel GC)
R=bsiegert, mpimenov, rsc, minux.ma, r
CC=golang-dev
https://golang.org/cl/5986054
2012-05-11 10:50:03 +04:00
Dmitriy Vyukov
a5dc7793c0
runtime: add lock-free stack
...
This is factored out part of the:
https://golang.org/cl/5279048/
(parallel GC)
R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5993043
2012-04-12 11:49:25 +04:00
Russ Cox
9e5db8c90a
5l, 6l, 8l: fix stack split logic for stacks near default segment size
...
Fixes #3310 .
R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5823051
2012-03-15 15:22:30 -04:00
Alex Brainman
b776b9e724
runtime: add windows callback tests
...
Just a copy of cgo callback tests from misc/cgo/test.
R=rsc
CC=golang-dev, hectorchu
https://golang.org/cl/5331062
2011-11-08 16:53:31 +11:00
Russ Cox
025abd530e
runtime: faster entersyscall, exitsyscall
...
Uses atomic memory accesses to avoid the need to acquire
and release schedlock on fast paths.
benchmark old ns/op new ns/op delta
runtime_test.BenchmarkSyscall 73 31 -56.63%
runtime_test.BenchmarkSyscall-2 538 74 -86.23%
runtime_test.BenchmarkSyscall-3 508 103 -79.72%
runtime_test.BenchmarkSyscall-4 721 97 -86.52%
runtime_test.BenchmarkSyscallWork 920 873 -5.11%
runtime_test.BenchmarkSyscallWork-2 516 481 -6.78%
runtime_test.BenchmarkSyscallWork-3 550 343 -37.64%
runtime_test.BenchmarkSyscallWork-4 632 263 -58.39%
(Intel Core i7 L640 2.13 GHz-based Lenovo X201s)
Reduced a less artificial server benchmark
from 11.5r 12.0u 8.0s to 8.3r 9.1u 1.0s.
R=dvyukov, r, bradfitz, r, iant, iant
CC=golang-dev
https://golang.org/cl/4723042
2011-07-19 11:01:17 -04:00
Russ Cox
7c2b1597c6
arm: precise float64 software floating point
...
Adds softfloat64 to generic runtime
(will be discarded by linker when unused)
and adds test for it. I used the test to check
the software code against amd64 hardware
and then check the software code against
the arm and its simulation of hardware.
The latter should have been a no-op (testing
against itself) but turned up a bug in 5c causing
the vlrt.c routines to miscompile.
These changes make the cmath, math,
and strconv tests pass without any special
accommodations for arm.
R=ken2
CC=golang-dev
https://golang.org/cl/2713042
2010-10-25 17:55:50 -07:00
