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-rw-r--r--erts/emulator/beam/erl_init.c123
1 files changed, 59 insertions, 64 deletions
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c
index 717315d8bd..7bf8d14708 100644
--- a/erts/emulator/beam/erl_init.c
+++ b/erts/emulator/beam/erl_init.c
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 1997-2011. All Rights Reserved.
+ * Copyright Ericsson AB 1997-2012. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
@@ -511,10 +511,14 @@ void erts_usage(void)
erts_fprintf(stderr, "-rg amount set reader groups limit\n");
erts_fprintf(stderr, "-sbt type set scheduler bind type, valid types are:\n");
erts_fprintf(stderr, " u|ns|ts|ps|s|nnts|nnps|tnnps|db\n");
+ erts_fprintf(stderr, "-sbwt val set scheduler busy wait threshold, valid values are:\n");
+ erts_fprintf(stderr, " none|very_short|short|medium|long|very_long.\n");
erts_fprintf(stderr, "-scl bool enable/disable compaction of scheduler load,\n");
erts_fprintf(stderr, " see the erl(1) documentation for more info.\n");
erts_fprintf(stderr, "-sct cput set cpu topology,\n");
erts_fprintf(stderr, " see the erl(1) documentation for more info.\n");
+ erts_fprintf(stderr, "-sws val set scheduler wakeup strategy, valid values are:\n");
+ erts_fprintf(stderr, " default|legacy|proposal.\n");
erts_fprintf(stderr, "-swt val set scheduler wakeup threshold, valid values are:\n");
erts_fprintf(stderr, " very_low|low|medium|high|very_high.\n");
erts_fprintf(stderr, "-sss size suggested stack size in kilo words for scheduler threads,\n");
@@ -790,6 +794,10 @@ early_init(int *argc, char **argv) /*
}
}
+#ifndef USE_THREADS
+ erts_async_max_threads = 0;
+#endif
+
#ifdef ERTS_SMP
no_schedulers = schdlrs;
no_schedulers_online = schdlrs_onln;
@@ -1198,6 +1206,16 @@ erl_start(int argc, char **argv)
erts_usage();
}
}
+ else if (has_prefix("bwt", sub_param)) {
+ arg = get_arg(sub_param+3, argv[i+1], &i);
+ if (erts_sched_set_busy_wait_threshold(arg) != 0) {
+ erts_fprintf(stderr, "bad scheduler busy wait threshold: %s\n",
+ arg);
+ erts_usage();
+ }
+ VERBOSE(DEBUG_SYSTEM,
+ ("scheduler wakup threshold: %s\n", arg));
+ }
else if (has_prefix("cl", sub_param)) {
arg = get_arg(sub_param+2, argv[i+1], &i);
if (sys_strcmp("true", arg) == 0)
@@ -1258,13 +1276,23 @@ erl_start(int argc, char **argv)
erts_use_sender_punish = 0;
else if (sys_strcmp("wt", sub_param) == 0) {
arg = get_arg(sub_param+2, argv[i+1], &i);
- if (erts_sched_set_wakeup_limit(arg) != 0) {
+ if (erts_sched_set_wakeup_other_thresold(arg) != 0) {
erts_fprintf(stderr, "scheduler wakeup threshold: %s\n",
arg);
erts_usage();
}
VERBOSE(DEBUG_SYSTEM,
- ("scheduler wakup threshold: %s\n", arg));
+ ("scheduler wakeup threshold: %s\n", arg));
+ }
+ else if (sys_strcmp("ws", sub_param) == 0) {
+ arg = get_arg(sub_param+2, argv[i+1], &i);
+ if (erts_sched_set_wakeup_other_type(arg) != 0) {
+ erts_fprintf(stderr, "scheduler wakeup strategy: %s\n",
+ arg);
+ erts_usage();
+ }
+ VERBOSE(DEBUG_SYSTEM,
+ ("scheduler wakeup threshold: %s\n", arg));
}
else if (has_prefix("ss", sub_param)) {
/* suggested stack size (Kilo Words) for scheduler threads */
@@ -1510,7 +1538,7 @@ __decl_noreturn void erts_thr_fatal_error(int err, char *what)
#endif
static void
-system_cleanup(int exit_code)
+system_cleanup(int flush_async)
{
/*
* Make sure only one thread exits the runtime system.
@@ -1542,7 +1570,7 @@ system_cleanup(int exit_code)
* (in threaded non smp case).
*/
- if (exit_code != 0
+ if (!flush_async
|| !erts_initialized
#if defined(USE_THREADS) && !defined(ERTS_SMP)
|| !erts_equal_tids(main_thread, erts_thr_self())
@@ -1585,21 +1613,12 @@ system_cleanup(int exit_code)
erts_exit_flush_async();
}
-/*
- * Common exit function, all exits from the system go through here.
- * n <= 0 -> normal exit with status n;
- * n = 127 -> Erlang crash dump produced, exit with status 1;
- * other positive n -> Erlang crash dump and core dump produced.
- */
-
-__decl_noreturn void erl_exit0(char *file, int line, int n, char *fmt,...)
+static __decl_noreturn void __noreturn
+erl_exit_vv(int n, int flush_async, char *fmt, va_list args1, va_list args2)
{
unsigned int an;
- va_list args;
-
- va_start(args, fmt);
- system_cleanup(n);
+ system_cleanup(flush_async);
save_statistics();
@@ -1609,66 +1628,42 @@ __decl_noreturn void erl_exit0(char *file, int line, int n, char *fmt,...)
erts_mtrace_exit((Uint32) an);
/* Produce an Erlang core dump if error */
- if (n > 0 && erts_initialized &&
- (erts_no_crash_dump == 0 || n == ERTS_DUMP_EXIT)) {
- erl_crash_dump_v(file, line, fmt, args);
+ if (((n > 0 && erts_no_crash_dump == 0) || n == ERTS_DUMP_EXIT)
+ && erts_initialized) {
+ erl_crash_dump_v((char*) NULL, 0, fmt, args1);
}
- /* need to reinitialize va_args thing */
- va_end(args);
- va_start(args, fmt);
-
if (fmt != NULL && *fmt != '\0')
- erl_error(fmt, args); /* Print error message. */
- va_end(args);
+ erl_error(fmt, args2); /* Print error message. */
sys_tty_reset(n);
if (n == ERTS_INTR_EXIT)
exit(0);
- else if (n == 127)
+ else if (n == ERTS_DUMP_EXIT)
ERTS_EXIT_AFTER_DUMP(1);
else if (n > 0 || n == ERTS_ABORT_EXIT)
abort();
exit(an);
}
-__decl_noreturn void erl_exit(int n, char *fmt,...)
+/* Exit without flushing async threads */
+__decl_noreturn void __noreturn erl_exit(int n, char *fmt, ...)
{
- unsigned int an;
- va_list args;
-
- va_start(args, fmt);
-
- system_cleanup(n);
-
- save_statistics();
-
- an = abs(n);
-
- if (erts_mtrace_enabled)
- erts_mtrace_exit((Uint32) an);
-
- /* Produce an Erlang core dump if error */
- if (n > 0 && erts_initialized &&
- (erts_no_crash_dump == 0 || n == ERTS_DUMP_EXIT)) {
- erl_crash_dump_v((char*) NULL, 0, fmt, args);
- }
-
- /* need to reinitialize va_args thing */
- va_end(args);
- va_start(args, fmt);
-
- if (fmt != NULL && *fmt != '\0')
- erl_error(fmt, args); /* Print error message. */
- va_end(args);
- sys_tty_reset(n);
-
- if (n == ERTS_INTR_EXIT)
- exit(0);
- else if (n == ERTS_DUMP_EXIT)
- ERTS_EXIT_AFTER_DUMP(1);
- else if (n > 0 || n == ERTS_ABORT_EXIT)
- abort();
- exit(an);
+ va_list args1, args2;
+ va_start(args1, fmt);
+ va_start(args2, fmt);
+ erl_exit_vv(n, 0, fmt, args1, args2);
+ va_end(args2);
+ va_end(args1);
}
+/* Exit after flushing async threads */
+__decl_noreturn void __noreturn erl_exit_flush_async(int n, char *fmt, ...)
+{
+ va_list args1, args2;
+ va_start(args1, fmt);
+ va_start(args2, fmt);
+ erl_exit_vv(n, 1, fmt, args1, args2);
+ va_end(args2);
+ va_end(args1);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-11 05:02:48 +0000