From 414f4fb8dc9a188f8148a1f92e5f9125108e170d Mon Sep 17 00:00:00 2001 From: Rickard Green Date: Fri, 16 Dec 2011 13:02:09 +0100 Subject: Optimize process table access --- erts/emulator/beam/erl_nif.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) (limited to 'erts/emulator/beam/erl_nif.c') diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c index b323bc7f69..6d0975f41f 100644 --- a/erts/emulator/beam/erl_nif.c +++ b/erts/emulator/beam/erl_nif.c @@ -311,6 +311,7 @@ int enif_send(ErlNifEnv* env, const ErlNifPid* to_pid, #endif Eterm receiver = to_pid->pid; int flush_me = 0; + int scheduler = erts_get_scheduler_id() != 0; if (env != NULL) { c_p = env->proc; @@ -330,8 +331,11 @@ int enif_send(ErlNifEnv* env, const ErlNifPid* to_pid, #if defined(ERTS_ENABLE_LOCK_CHECK) && defined(ERTS_SMP) rp_had_locks = rp_locks; #endif - rp = erts_pid2proc_opt(c_p, ERTS_PROC_LOCK_MAIN, - receiver, rp_locks, ERTS_P2P_FLG_SMP_INC_REFC); + + rp = (scheduler + ? erts_proc_lookup(receiver) + : erts_pid2proc_opt(c_p, ERTS_PROC_LOCK_MAIN, + receiver, rp_locks, ERTS_P2P_FLG_SMP_INC_REFC)); if (rp == NULL) { ASSERT(env == NULL || receiver != c_p->id); return 0; @@ -358,12 +362,12 @@ int enif_send(ErlNifEnv* env, const ErlNifPid* to_pid, , NIL #endif ); - if (rp_locks) { - ERTS_SMP_LC_ASSERT(rp_locks == (rp_had_locks | (ERTS_PROC_LOCK_MSGQ | - ERTS_PROC_LOCK_STATUS))); - erts_smp_proc_unlock(rp, (ERTS_PROC_LOCK_MSGQ | ERTS_PROC_LOCK_STATUS)); - } - erts_smp_proc_dec_refc(rp); + if (c_p == rp) + rp_locks &= ~ERTS_PROC_LOCK_MAIN; + if (rp_locks) + erts_smp_proc_unlock(rp, rp_locks); + if (!scheduler) + erts_smp_proc_dec_refc(rp); if (flush_me) { cache_env(env); } -- cgit v1.2.3