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-rw-r--r--erts/emulator/beam/erl_init.c21
1 files changed, 14 insertions, 7 deletions
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c
index 296cfdabc3..99d8a2a987 100644
--- a/erts/emulator/beam/erl_init.c
+++ b/erts/emulator/beam/erl_init.c
@@ -630,7 +630,8 @@ void erts_usage(void)
erts_fprintf(stderr, "-W<i|w|e> set error logger warnings mapping,\n");
erts_fprintf(stderr, " see error_logger documentation for details\n");
- erts_fprintf(stderr, "-xohmq bool set default off_heap_message_queue flag for processes\n");
+ erts_fprintf(stderr, "-xmqd val set default message queue data flag for processes,\n");
+ erts_fprintf(stderr, " valid values are: off_heap | on_heap | mixed\n");
erts_fprintf(stderr, "-zdbbl size set the distribution buffer busy limit in kilobytes\n");
erts_fprintf(stderr, " valid range is [1-%d]\n", INT_MAX/1024);
erts_fprintf(stderr, "-zdntgc time set delayed node table gc in seconds\n");
@@ -2020,15 +2021,21 @@ erl_start(int argc, char **argv)
case 'x': {
char *sub_param = argv[i]+2;
- if (has_prefix("ohmq", sub_param)) {
- arg = get_arg(sub_param+4, argv[i+1], &i);
- if (sys_strcmp(arg, "true") == 0)
- erts_default_spo_flags |= SPO_OFF_HEAP_MSGQ;
- else if (sys_strcmp(arg, "false") == 0)
+ if (has_prefix("mqd", sub_param)) {
+ arg = get_arg(sub_param+3, argv[i+1], &i);
+ if (sys_strcmp(arg, "mixed") == 0)
+ erts_default_spo_flags &= ~(SPO_ON_HEAP_MSGQ|SPO_OFF_HEAP_MSGQ);
+ else if (sys_strcmp(arg, "on_heap") == 0) {
erts_default_spo_flags &= ~SPO_OFF_HEAP_MSGQ;
+ erts_default_spo_flags |= SPO_ON_HEAP_MSGQ;
+ }
+ else if (sys_strcmp(arg, "off_heap") == 0) {
+ erts_default_spo_flags &= ~SPO_ON_HEAP_MSGQ;
+ erts_default_spo_flags |= SPO_OFF_HEAP_MSGQ;
+ }
else {
erts_fprintf(stderr,
- "Invalid off_heap_message_queue flag: %s\n", arg);
+ "Invalid message_queue_data flag: %s\n", arg);
erts_usage();
}
} else {