blob: ec4b987e70916cea9a71374a80251552d2614ae4 [file] [log] [blame]
/*
* Copyright (c) 2008-2009 Travis Geiselbrecht
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* @defgroup debug Debug
* @{
*/
/**
* @file
* @brief Debug console functions.
*/
#include <debug.h>
#include <kernel/thread.h>
#include <kernel/timer.h>
#include <platform.h>
#if WITH_LIB_CONSOLE
#include <lib/console.h>
static int cmd_threads(int argc, const cmd_args *argv);
static int cmd_threadstats(int argc, const cmd_args *argv);
static int cmd_threadload(int argc, const cmd_args *argv);
STATIC_COMMAND_START
#if DEBUGLEVEL > 1
STATIC_COMMAND("threads", "list kernel threads", &cmd_threads)
#endif
#if THREAD_STATS
STATIC_COMMAND("threadstats", "thread level statistics", &cmd_threadstats)
STATIC_COMMAND("threadload", "toggle thread load display", &cmd_threadload)
#endif
STATIC_COMMAND_END(kernel);
#if DEBUGLEVEL > 1
static int cmd_threads(int argc, const cmd_args *argv)
{
printf("thread list:\n");
dump_all_threads();
return 0;
}
#endif
#if THREAD_STATS
static int cmd_threadstats(int argc, const cmd_args *argv)
{
printf("thread stats:\n");
printf("\ttotal idle time: %lld\n", thread_stats.idle_time);
printf("\ttotal busy time: %lld\n", current_time_hires() - thread_stats.idle_time);
printf("\treschedules: %d\n", thread_stats.reschedules);
printf("\tcontext_switches: %d\n", thread_stats.context_switches);
printf("\tpreempts: %d\n", thread_stats.preempts);
printf("\tyields: %d\n", thread_stats.yields);
printf("\tinterrupts: %d\n", thread_stats.interrupts);
printf("\ttimer interrupts: %d\n", thread_stats.timer_ints);
printf("\ttimers: %d\n", thread_stats.timers);
return 0;
}
static enum handler_return threadload(struct timer *t, time_t now, void *arg)
{
static struct thread_stats old_stats;
static bigtime_t last_idle_time;
bigtime_t idle_time = thread_stats.idle_time;
if (current_thread == idle_thread) {
idle_time += current_time_hires() - thread_stats.last_idle_timestamp;
}
bigtime_t busy_time = 1000000ULL - (idle_time - last_idle_time);
uint busypercent = (busy_time * 10000) / (1000000);
// printf("idle_time %lld, busytime %lld\n", idle_time - last_idle_time, busy_time);
printf("LOAD: %d.%02d%%, cs %d, ints %d, timer ints %d, timers %d\n", busypercent / 100, busypercent % 100,
thread_stats.context_switches - old_stats.context_switches,
thread_stats.interrupts - old_stats.interrupts,
thread_stats.timer_ints - old_stats.timer_ints,
thread_stats.timers - old_stats.timers);
old_stats = thread_stats;
last_idle_time = idle_time;
return INT_NO_RESCHEDULE;
}
static int cmd_threadload(int argc, const cmd_args *argv)
{
static bool showthreadload = false;
static timer_t tltimer;
enter_critical_section();
if (showthreadload == false) {
// start the display
timer_initialize(&tltimer);
timer_set_periodic(&tltimer, 1000, &threadload, NULL);
showthreadload = true;
} else {
timer_cancel(&tltimer);
showthreadload = false;
}
exit_critical_section();
return 0;
}
#endif
#endif