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authorRickard Green <[email protected]>2010-09-15 22:14:51 +0200
committerRickard Green <[email protected]>2011-11-13 20:39:30 +0100
commita67e91e658bdbba24fcc3c79b06fdf10ff830bc9 (patch)
tree07f9e6b1fd715d516d2571521307fe1b9d7c3948 /erts/emulator/sys/win32/erl_poll.c
parent55358c54778ead444e51f565d00175ba887ef182 (diff)
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Optimize memory allocation
A number of memory allocation optimizations have been implemented. Most optimizations reduce contention caused by synchronization between threads during allocation and deallocation of memory. Most notably: * Synchronization of memory management in scheduler specific allocator instances has been rewritten to use lock-free synchronization. * Synchronization of memory management in scheduler specific pre-allocators has been rewritten to use lock-free synchronization. * The 'mseg_alloc' memory segment allocator now use scheduler specific instances instead of one instance. Apart from reducing contention this also ensures that memory allocators always create memory segments on the local NUMA node on a NUMA system.
Diffstat (limited to 'erts/emulator/sys/win32/erl_poll.c')
-rw-r--r--erts/emulator/sys/win32/erl_poll.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/erts/emulator/sys/win32/erl_poll.c b/erts/emulator/sys/win32/erl_poll.c
index 735c420d8e..ab4ef05118 100644
--- a/erts/emulator/sys/win32/erl_poll.c
+++ b/erts/emulator/sys/win32/erl_poll.c
@@ -1159,7 +1159,13 @@ int erts_poll_wait(ErtsPollSet ps,
HARDDEBUGF(("Start waiting %d [%d]",num_h, (int) timeout));
ERTS_POLLSET_UNLOCK(ps);
+#ifdef ERTS_SMP
+ erts_thr_progress_prepare_wait(NULL);
+#endif
WaitForMultipleObjects(num_h, harr, FALSE, timeout);
+#ifdef ERTS_SMP
+ erts_thr_progress_finalize_wait(NULL);
+#endif
ERTS_POLLSET_LOCK(ps);
HARDDEBUGF(("Stop waiting %d [%d]",num_h, (int) timeout));
woke_up(ps);