projects / fio.git / blame
| Commit | Line | Data |
|---|---|---|
| f2a2ce0e HL |
1 | #ifndef FIO_IDLETIME_H |
| 2 | #define FIO_IDLETIME_H | |
| 3 | ||
| 4 | #include "fio.h" | |
| 5 | ||
| 6 | #define CALIBRATE_RUNS 10 | |
| 7 | #define CALIBRATE_SCALE 1000 | |
| 8 | #define MAX_CPU_STR_LEN 32 | |
| 9 | ||
| 10 | enum { | |
| 11 | IDLE_PROF_OPT_NONE, | |
| 12 | IDLE_PROF_OPT_CALI, /* calibration only */ | |
| 13 | IDLE_PROF_OPT_SYSTEM, | |
| 14 | IDLE_PROF_OPT_PERCPU | |
| 15 | }; | |
| 16 | ||
| 17 | enum { | |
| 18 | IDLE_PROF_STATUS_OK, | |
| 19 | IDLE_PROF_STATUS_CALI_STOP, | |
| 20 | IDLE_PROF_STATUS_PROF_STOP, | |
| 21 | IDLE_PROF_STATUS_ABORT | |
| 22 | }; | |
| 23 | ||
| 24 | struct idle_prof_thread { | |
| 25 | pthread_t thread; | |
| 26 | int cpu; | |
| 27 | int state; | |
| 28 | struct timeval tps; | |
| 29 | struct timeval tpe; | |
| 30 | double cali_time; /* microseconds to finish a unit wrok */ | |
| 31 | double loops; | |
| 32 | double idleness; | |
| 33 | unsigned char *data; /* bytes to be touched */ | |
| 34 | pthread_cond_t cond; | |
| 35 | pthread_mutex_t init_lock; | |
| 36 | pthread_mutex_t start_lock; | |
| 37 | }; | |
| 38 | ||
| 39 | struct idle_prof_common { | |
| 40 | struct idle_prof_thread *ipts; | |
| 41 | int nr_cpus; | |
| 42 | int status; | |
| 43 | int opt; | |
| 44 | double cali_mean; | |
| 45 | double cali_stddev; | |
| 46 | void *buf; /* single data allocation for all threads */ | |
| 47 | }; | |
| 48 | ||
| 49 | extern int fio_idle_prof_parse_opt(const char *); | |
| 50 | ||
| 51 | extern void fio_idle_prof_init(void); | |
| 52 | extern void fio_idle_prof_start(void); | |
| 53 | extern void fio_idle_prof_stop(void); | |
| 54 | ||
| 55 | extern void show_idle_prof_stats(int, struct json_object *); | |
| 56 | ||
| 57 | #endif |