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speed improvements: change scheduler to SCHED_FIFO, Disable realtime throttling, use in-memory db for sqlite core channels table (set core-db-name to 'core' in switch.conf.xml for previous behaviour of using the core sqlite file, now only aliases will be in the persistant db)

This commit is contained in:
Anthony Minessale 2012-09-25 16:12:23 -05:00
parent 0fe6aa4d0a
commit dbf5153fb7
3 changed files with 68 additions and 2 deletions
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3
src/include/switch_core.h
View File

@ -2303,6 +2303,9 @@ SWITCH_DECLARE(switch_status_t) _switch_core_db_handle(switch_cache_db_handle_t
SWITCH_DECLARE(switch_status_t) _switch_core_recovery_db_handle(switch_cache_db_handle_t ** dbh, const char *file, const char *func, int line);
#define switch_core_recovery_db_handle(_a) _switch_core_recovery_db_handle(_a, __FILE__, __SWITCH_FUNC__, __LINE__)
SWITCH_DECLARE(switch_status_t) _switch_core_persist_db_handle(switch_cache_db_handle_t ** dbh, const char *file, const char *func, int line);
#define switch_core_persist_db_handle(_a) _switch_core_persist_db_handle(_a, __FILE__, __SWITCH_FUNC__, __LINE__)
SWITCH_DECLARE(switch_bool_t) switch_cache_db_test_reactive(switch_cache_db_handle_t *db,
const char *test_sql, const char *drop_sql, const char *reactive_sql);
SWITCH_DECLARE(switch_status_t) switch_cache_db_persistant_execute(switch_cache_db_handle_t *dbh, const char *sql, uint32_t retries);

22
src/switch_core.c
View File

@ -731,16 +731,36 @@ SWITCH_DECLARE(int32_t) set_realtime_priority(void)
* Try to use a round-robin scheduler
* with a fallback if that does not work
*/
int fd;
const char *rt = "/proc/sys/kernel/sched_rt_runtime_us";
char data[] = "-1\n";
struct sched_param sched = { 0 };
sched.sched_priority = 1;
if (sched_setscheduler(0, SCHED_RR, &sched)) {
if (sched_setscheduler(0, SCHED_FIFO, &sched)) {
sched.sched_priority = 0;
if (sched_setscheduler(0, SCHED_OTHER, &sched)) {
return -1;
}
}
if ((fd = open(rt, O_WRONLY)) > 0) {
int r;
if (!(r = write(fd, data, sizeof(data)))) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Error Disablling RT limits [%s][%d]\n", rt, r);
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Disabling RT throttling.\n");
}
close(fd);
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_CRIT, "Error opening %s\n", rt);
}
#endif
#ifdef HAVE_SETPRIORITY
/*
* setpriority() works on FreeBSD (6.2), nice() doesn't

45
src/switch_core_sqldb.c
View File

@ -176,7 +176,7 @@ static switch_cache_db_handle_t *get_handle(const char *db_str, const char *user
}
#define SWITCH_CORE_DB "core"
#define SWITCH_CORE_DB "file:scoreboard?mode=memory&cache=shared"
/*!
\brief Open the default system database
*/
@ -218,6 +218,49 @@ SWITCH_DECLARE(switch_status_t) _switch_core_db_handle(switch_cache_db_handle_t
return r;
}
#define SWITCH_CORE_PERSIST_DB "core"
/*!
\brief Open the default system database
*/
SWITCH_DECLARE(switch_status_t) _switch_core_persist_db_handle(switch_cache_db_handle_t **dbh, const char *file, const char *func, int line)
{
switch_cache_db_connection_options_t options = { {0} };
switch_status_t r;
if (!sql_manager.manage) {
return SWITCH_STATUS_FALSE;
}
if (zstr(runtime.odbc_dsn)) {
if (switch_test_flag((&runtime), SCF_CORE_ODBC_REQ)) {
return SWITCH_STATUS_FALSE;
}
if (runtime.dbname) {
options.core_db_options.db_path = runtime.dbname;
} else {
options.core_db_options.db_path = SWITCH_CORE_PERSIST_DB;
}
r = _switch_cache_db_get_db_handle(dbh, SCDB_TYPE_CORE_DB, &options, file, func, line);
} else {
options.odbc_options.dsn = runtime.odbc_dsn;
options.odbc_options.user = runtime.odbc_user;
options.odbc_options.pass = runtime.odbc_pass;
r = _switch_cache_db_get_db_handle(dbh, SCDB_TYPE_ODBC, &options, file, func, line);
}
/* I *think* we can do without this now, if not let me know
if (r == SWITCH_STATUS_SUCCESS && !(*dbh)->io_mutex) {
(*dbh)->io_mutex = sql_manager.io_mutex;
}
*/
return r;
}
#define SWITCH_CORE_RECOVERY_DB "core_recovery"
SWITCH_DECLARE(switch_status_t) _switch_core_recovery_db_handle(switch_cache_db_handle_t **dbh, const char *file, const char *func, int line)
{