From 1d64d04da5f54f2fc0c9801c908380b633ea67d9 Mon Sep 17 00:00:00 2001 From: Shenghou Ma Date: Sat, 16 Mar 2013 04:01:56 +0800 Subject: net, runtime: enable runtime-integrated pollster on Linux/ARM. Results from linux/arm on a Samsung Chromebook (from dfc): localhost(~/go/src/pkg/net) % ~/go/misc/benchcmp {old,new}.txt benchmark old ns/op new ns/op delta BenchmarkTCP4OneShot 568840 350526 -38.38% BenchmarkTCP4OneShot-2 359054 206708 -42.43% BenchmarkTCP4OneShotTimeout 637464 363550 -42.97% BenchmarkTCP4OneShotTimeout-2 374255 216695 -42.10% BenchmarkTCP4Persistent 184974 64984 -64.87% BenchmarkTCP4Persistent-2 109902 47195 -57.06% BenchmarkTCP4PersistentTimeout 210039 64789 -69.15% BenchmarkTCP4PersistentTimeout-2 124284 43374 -65.10% BenchmarkTCP6OneShot 672278 362116 -46.14% BenchmarkTCP6OneShot-2 383631 216400 -43.59% BenchmarkTCP6OneShotTimeout 680740 378306 -44.43% BenchmarkTCP6OneShotTimeout-2 397524 230152 -42.10% BenchmarkTCP6Persistent 172346 65292 -62.12% BenchmarkTCP6Persistent-2 106229 42096 -60.37% BenchmarkTCP6PersistentTimeout 161149 65138 -59.58% BenchmarkTCP6PersistentTimeout-2 152276 44548 -70.75% R=golang-dev, dave, bradfitz, dvyukov, rsc CC=golang-dev https://golang.org/cl/7820045 --- src/pkg/runtime/sys_linux_arm.s | 49 ++++++++++++++++++++++++++++++++++++++++- 1 file changed, 48 insertions(+), 1 deletion(-) (limited to 'src/pkg/runtime/sys_linux_arm.s') diff --git a/src/pkg/runtime/sys_linux_arm.s b/src/pkg/runtime/sys_linux_arm.s index e3994bccaa..7f813482d1 100644 --- a/src/pkg/runtime/sys_linux_arm.s +++ b/src/pkg/runtime/sys_linux_arm.s @@ -36,6 +36,11 @@ #define SYS_ugetrlimit (SYS_BASE + 191) #define SYS_sched_getaffinity (SYS_BASE + 242) #define SYS_clock_gettime (SYS_BASE + 263) +#define SYS_epoll_create (SYS_BASE + 250) +#define SYS_epoll_ctl (SYS_BASE + 251) +#define SYS_epoll_wait (SYS_BASE + 252) +#define SYS_epoll_create1 (SYS_BASE + 357) +#define SYS_fcntl (SYS_BASE + 55) #define ARM_BASE (SYS_BASE + 0x0f0000) @@ -371,7 +376,6 @@ cascheck: MOVW $0, R0 RET - TEXT runtime·casp(SB),7,$0 B runtime·cas(SB) @@ -387,3 +391,46 @@ TEXT runtime·sched_getaffinity(SB),7,$0 MOVW $SYS_sched_getaffinity, R7 SWI $0 RET + +// int32 runtime·epollcreate(int32 size) +TEXT runtime·epollcreate(SB),7,$0 + MOVW 0(FP), R0 + MOVW $SYS_epoll_create, R7 + SWI $0 + RET + +// int32 runtime·epollcreate1(int32 flags) +TEXT runtime·epollcreate1(SB),7,$0 + MOVW 0(FP), R0 + MOVW $SYS_epoll_create1, R7 + SWI $0 + RET + +// int32 runtime·epollctl(int32 epfd, int32 op, int32 fd, EpollEvent *ev) +TEXT runtime·epollctl(SB),7,$0 + MOVW 0(FP), R0 + MOVW 4(FP), R1 + MOVW 8(FP), R2 + MOVW 12(FP), R3 + MOVW $SYS_epoll_ctl, R7 + SWI $0 + RET + +// int32 runtime·epollwait(int32 epfd, EpollEvent *ev, int32 nev, int32 timeout) +TEXT runtime·epollwait(SB),7,$0 + MOVW 0(FP), R0 + MOVW 4(FP), R1 + MOVW 8(FP), R2 + MOVW 12(FP), R3 + MOVW $SYS_epoll_wait, R7 + SWI $0 + RET + +// void runtime·closeonexec(int32 fd) +TEXT runtime·closeonexec(SB),7,$0 + MOVW 0(FP), R0 // fd + MOVW $2, R1 // F_SETFD + MOVW $1, R2 // FD_CLOEXEC + MOVW $SYS_fcntl, R7 + SWI $0 + RET -- cgit v1.3-5-g9baa