schedstatistics.h
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1 /*
2  * Copyright (C) 2014 Freie Universität Berlin
3  * 2019 Inria
4  *
5  * This file is subject to the terms and conditions of the GNU Lesser
6  * General Public License v2.1. See the file LICENSE in the top level
7  * directory for more details.
8  */
9 
29 #ifndef SCHEDSTATISTICS_H
30 #define SCHEDSTATISTICS_H
31 
32 #include <stdint.h>
33 #include "kernel_types.h"
34 
35 #ifdef __cplusplus
36  extern "C" {
37 #endif
38 
42 typedef struct {
43  uint32_t laststart;
45  unsigned int schedules;
46  uint64_t runtime_ticks;
47 } schedstat_t;
48 
52 extern schedstat_t sched_pidlist[KERNEL_PID_LAST + 1];
53 
58 void init_schedstatistics(void);
59 
60 #ifdef __cplusplus
61 }
62 #endif
63 
64 #endif /* SCHEDSTATISTICS_H */
65 
schedstat_t::runtime_ticks
uint64_t runtime_ticks
The total runtime of this thread in ticks.
Definition: schedstatistics.h:46
schedstat_t
Scheduler statistics.
Definition: schedstatistics.h:42
sched_pidlist
schedstat_t sched_pidlist[KERNEL_PID_LAST+1]
Thread statistics table.
schedstat_t::laststart
uint32_t laststart
Time stamp of the last time this thread was scheduled to run.
Definition: schedstatistics.h:43
schedstat_t::schedules
unsigned int schedules
How often the thread was scheduled to run.
Definition: schedstatistics.h:45
init_schedstatistics
void init_schedstatistics(void)
Registers the sched statistics callback and sets laststart for caller thread.
KERNEL_PID_LAST
#define KERNEL_PID_LAST
The last valid PID (inclusive).
Definition: sched.h:115
kernel_types.h
Types used by the kernel.