3e140ea690
Migration guide: https://github.com/postmarketOS/pmbootstrap/wiki/Migration-to-aports-subfolders
59 lines
2 KiB
Diff
59 lines
2 KiB
Diff
From 594e3c1ab576daddeb86015efc8b1677020b1878 Mon Sep 17 00:00:00 2001
|
|
From: Szabolcs Nagy <nsz@port70.net>
|
|
Date: Sat, 24 Oct 2015 20:39:30 +0000
|
|
Subject: [PATCH 1/6] cilkrts
|
|
|
|
---
|
|
libcilkrts/runtime/os-unix.c | 22 +++++++---------------
|
|
1 file changed, 7 insertions(+), 15 deletions(-)
|
|
|
|
diff --git a/libcilkrts/runtime/os-unix.c b/libcilkrts/runtime/os-unix.c
|
|
index cb582dd..e43d7d5 100644
|
|
--- a/libcilkrts/runtime/os-unix.c
|
|
+++ b/libcilkrts/runtime/os-unix.c
|
|
@@ -51,6 +51,7 @@
|
|
#if defined __linux__
|
|
# include <sys/sysinfo.h>
|
|
# include <sys/syscall.h>
|
|
+# include <sched.h>
|
|
#elif defined __APPLE__
|
|
# include <sys/sysctl.h>
|
|
// Uses sysconf(_SC_NPROCESSORS_ONLN) in verbose output
|
|
@@ -400,28 +401,19 @@ COMMON_SYSDEP void __cilkrts_sleep(void)
|
|
|
|
COMMON_SYSDEP void __cilkrts_yield(void)
|
|
{
|
|
-#if __APPLE__ || __FreeBSD__ || __VXWORKS__
|
|
- // On MacOS, call sched_yield to yield quantum. I'm not sure why we
|
|
- // don't do this on Linux also.
|
|
- sched_yield();
|
|
-#elif defined(__DragonFly__)
|
|
- // On DragonFly BSD, call sched_yield to yield quantum.
|
|
- sched_yield();
|
|
-#elif defined(__MIC__)
|
|
+#if defined(__MIC__)
|
|
// On MIC, pthread_yield() really trashes things. Arch's measurements
|
|
// showed that calling _mm_delay_32() (or doing nothing) was a better
|
|
// option. Delaying 1024 clock cycles is a reasonable compromise between
|
|
// giving up the processor and latency starting up when work becomes
|
|
// available
|
|
_mm_delay_32(1024);
|
|
-#elif defined(__ANDROID__) || (defined(__sun__) && defined(__svr4__))
|
|
- // On Android and Solaris, call sched_yield to yield quantum. I'm not
|
|
- // sure why we don't do this on Linux also.
|
|
- sched_yield();
|
|
-#else
|
|
- // On Linux, call pthread_yield (which in turn will call sched_yield)
|
|
- // to yield quantum.
|
|
+#elif defined(__sun__) && !defined(__svr4__)
|
|
+ // On old SunOS call pthread_yield to yield a quantum.
|
|
pthread_yield();
|
|
+#else
|
|
+ // On other platforms call sched_yield to yield a quantum.
|
|
+ sched_yield();
|
|
#endif
|
|
}
|
|
|
|
--
|
|
2.8.1
|
|
|