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| author | Rickard Green <[email protected]> | 2010-09-15 22:14:51 +0200 |
|---|---|---|
| committer | Rickard Green <[email protected]> | 2011-11-13 20:39:30 +0100 |
| commit | a67e91e658bdbba24fcc3c79b06fdf10ff830bc9 (patch) | |
| tree | 07f9e6b1fd715d516d2571521307fe1b9d7c3948 /erts/emulator/sys/common/erl_check_io.c | |
| parent | 55358c54778ead444e51f565d00175ba887ef182 (diff) | |
| download | otp-a67e91e658bdbba24fcc3c79b06fdf10ff830bc9.tar.gz otp-a67e91e658bdbba24fcc3c79b06fdf10ff830bc9.tar.bz2 otp-a67e91e658bdbba24fcc3c79b06fdf10ff830bc9.zip | |
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/common/erl_check_io.c')
| -rw-r--r-- | erts/emulator/sys/common/erl_check_io.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/erts/emulator/sys/common/erl_check_io.c b/erts/emulator/sys/common/erl_check_io.c index 57321259f9..6d4ad459cc 100644 --- a/erts/emulator/sys/common/erl_check_io.c +++ b/erts/emulator/sys/common/erl_check_io.c @@ -66,6 +66,9 @@ typedef char EventStateFlags; #define ERTS_CIO_POLL_CTL ERTS_POLL_EXPORT(erts_poll_control) #define ERTS_CIO_POLL_WAIT ERTS_POLL_EXPORT(erts_poll_wait) +#ifdef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT +#define ERTS_CIO_POLL_AS_INTR ERTS_POLL_EXPORT(erts_poll_async_sig_interrupt) +#endif #define ERTS_CIO_POLL_INTR ERTS_POLL_EXPORT(erts_poll_interrupt) #define ERTS_CIO_POLL_INTR_TMD ERTS_POLL_EXPORT(erts_poll_interrupt_timed) #define ERTS_CIO_NEW_POLLSET ERTS_POLL_EXPORT(erts_poll_create_pollset) @@ -1115,6 +1118,14 @@ eready(Eterm id, ErtsDrvEventState *state, ErlDrvEventData event_data) static void bad_fd_in_pollset( ErtsDrvEventState *, Eterm, Eterm, ErtsPollEvents); +#ifdef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT +void +ERTS_CIO_EXPORT(erts_check_io_async_sig_interrupt)(void) +{ + ERTS_CIO_POLL_AS_INTR(pollset.ps); +} +#endif + void ERTS_CIO_EXPORT(erts_check_io_interrupt)(int set) { |