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| author | Rickard Green <[email protected]> | 2011-10-10 21:03:10 +0200 |
|---|---|---|
| committer | Rickard Green <[email protected]> | 2011-11-13 20:40:56 +0100 |
| commit | bc5818cfdd56e19a16357f4443d80a56426aa134 (patch) | |
| tree | bfe53d3e0cf24ccd7374e0174c1a4c441ab2e097 /erts/emulator/beam/erl_init.c | |
| parent | a67e91e658bdbba24fcc3c79b06fdf10ff830bc9 (diff) | |
| download | otp-bc5818cfdd56e19a16357f4443d80a56426aa134.tar.gz otp-bc5818cfdd56e19a16357f4443d80a56426aa134.tar.bz2 otp-bc5818cfdd56e19a16357f4443d80a56426aa134.zip | |
Replace system block with thread progress block
The ERTS internal system block functionality has been replaced by
new functionality for blocking the system. The old system block
functionality had contention issues and complexity issues. The
new functionality piggy-backs on thread progress tracking functionality
needed by newly introduced lock-free synchronization in the runtime
system. When the functionality for blocking the system isn't used
there is more or less no overhead at all. This since the functionality
for tracking thread progress is there and needed anyway.
Diffstat (limited to 'erts/emulator/beam/erl_init.c')
| -rw-r--r-- | erts/emulator/beam/erl_init.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c index ef86e6db5e..f4f2a4d011 100644 --- a/erts/emulator/beam/erl_init.c +++ b/erts/emulator/beam/erl_init.c @@ -246,10 +246,6 @@ erl_init(int ncpu) { init_benchmarking(); -#ifdef ERTS_SMP - erts_system_block_init(); -#endif - erts_init_monitors(); erts_init_gc(); erts_init_time(); @@ -778,6 +774,16 @@ early_init(int *argc, char **argv) /* -M flags. */ /* Require allocators */ #ifdef ERTS_SMP + /* + * Thread progress management: + * + * * Managed threads: + * ** Scheduler threads (see erl_process.c) + * ** Aux thread (see erl_process.c) + * ** Sys message dispatcher thread (see erl_trace.c) + * + * * No unmanaged threads that need to register. + */ erts_thr_progress_init(no_schedulers, no_schedulers+1, 0); #endif erts_init_utils(); @@ -1499,7 +1505,6 @@ system_cleanup(int exit_code) #ifdef ERTS_ENABLE_LOCK_CHECK erts_lc_check_exact(NULL, 0); #endif - erts_smp_block_system(ERTS_BS_FLG_ALLOW_GC); /* We never release it... */ #endif #ifdef HYBRID |