Commit 25baf714 authored by suhua's avatar suhua Committed by Tomasz Zawadzki
Browse files

reactor: Change the context_switch period to microseconds 



Signed-off-by: default avatarsuhua <suhua1@kingsoft.com>
Change-Id: I95a4cc3cb5bef37e31a630171a47e28f14331494
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/475333


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
parent b99df8ee

lib/event/reactor.c

+5 −1
Original line number Diff line number Diff line
@@ -282,6 +282,7 @@ _spdk_event_queue_run_batch(struct spdk_reactor *reactor) 
	return count;

}



/* 1s */

#define CONTEXT_SWITCH_MONITOR_PERIOD 1000000



static int
@@ -340,6 +341,7 @@ _spdk_reactor_run(void *arg) 
	uint64_t		last_rusage = 0;

	struct spdk_lw_thread	*lw_thread, *tmp;

	char			thread_name[32];

	uint64_t		rusage_period = 0;



	SPDK_NOTICELOG("Reactor started on core %u\n", reactor->lcore);
@@ -349,6 +351,8 @@ _spdk_reactor_run(void *arg) 
	snprintf(thread_name, sizeof(thread_name), "reactor_%u", reactor->lcore);

	_set_thread_name(thread_name);



	rusage_period = (CONTEXT_SWITCH_MONITOR_PERIOD * spdk_get_ticks_hz()) / SPDK_SEC_TO_USEC;



	while (1) {

		uint64_t now;

		int rc;
@@ -374,7 +378,7 @@ _spdk_reactor_run(void *arg) 
		}



		if (g_framework_monitor_context_switch_enabled) {

			if ((last_rusage + CONTEXT_SWITCH_MONITOR_PERIOD) < now) {

			if ((last_rusage + rusage_period) < now) {

				get_rusage(reactor);

				last_rusage = now;

			}