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authorShenghou Ma <minux.ma@gmail.com>2013-03-16 04:01:56 +0800
committerShenghou Ma <minux.ma@gmail.com>2013-03-16 04:01:56 +0800
commit1d64d04da5f54f2fc0c9801c908380b633ea67d9 (patch)
tree7535af17a9e00cb387a975e280d4dcb688ca35cd /src/pkg/runtime/sys_linux_arm.s
parent615f289209d08316da2c609f843bd20201ce2275 (diff)
downloadgo-1d64d04da5f54f2fc0c9801c908380b633ea67d9.tar.xz
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
Diffstat (limited to 'src/pkg/runtime/sys_linux_arm.s')
-rw-r--r--src/pkg/runtime/sys_linux_arm.s49
1 files changed, 48 insertions, 1 deletions
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