schedstatistics.h
Go to the documentation of this file.
1 /*
2  * SPDX-FileCopyrightText: 2014 Freie Universität Berlin
3  * SPDX-FileCopyrightText: 2019 Inria
4  * SPDX-License-Identifier: LGPL-2.1-only
5  */
6 
7 #pragma once
8 
28 #include <stdint.h>
29 
30 #ifdef __cplusplus
31  extern "C" {
32 #endif
33 
37 typedef struct {
38  uint32_t laststart;
40  unsigned int schedules;
41  uint64_t runtime_us;
42 } schedstat_t;
43 
47 extern schedstat_t sched_pidlist[KERNEL_PID_LAST + 1];
48 
53 void init_schedstatistics(void);
54 
55 #ifdef __cplusplus
56 }
57 #endif
58 
KERNEL_PID_LAST
#define KERNEL_PID_LAST
The last valid PID (inclusive).
Definition: sched.h:116
sched_pidlist
schedstat_t sched_pidlist[KERNEL_PID_LAST+1]
Thread statistics table.
init_schedstatistics
void init_schedstatistics(void)
Registers the sched statistics callback and sets laststart for caller thread.
schedstat_t
Scheduler statistics.
Definition: schedstatistics.h:37
schedstat_t::schedules
unsigned int schedules
How often the thread was scheduled to run.
Definition: schedstatistics.h:40
schedstat_t::runtime_us
uint64_t runtime_us
The total runtime of this thread in microseconds.
Definition: schedstatistics.h:41
schedstat_t::laststart
uint32_t laststart
Time stamp of the last time this thread was scheduled to run.
Definition: schedstatistics.h:38