projects / fio.git / blame
| Commit | Line | Data |
|---|---|---|
| 16e56d25 VF |
1 | #ifndef FIO_STEADYSTATE_H |
| 2 | #define FIO_STEADYSTATE_H | |
| 3 | ||
| bb49c8bd | 4 | #include "stat.h" |
| 4cd5b75b | 5 | #include "thread_options.h" |
| bb49c8bd | 6 | #include "lib/ieee754.h" |
| 4cd5b75b | 7 | |
| c27cc65f | 8 | extern void steadystate_free(struct thread_data *); |
| 16e56d25 VF |
9 | extern void steadystate_check(void); |
| 10 | extern void steadystate_setup(void); | |
| 56a90eba | 11 | extern int td_steadystate_init(struct thread_data *); |
| 9d193019 VF |
12 | extern uint64_t steadystate_bw_mean(struct thread_stat *); |
| 13 | extern uint64_t steadystate_iops_mean(struct thread_stat *); | |
| 4cd5b75b | 14 | |
| 84784e07 | 15 | extern bool steadystate_enabled; |
| 0a70e050 | 16 | |
| 0a70e050 JA |
17 | struct steadystate_data { |
| 18 | double limit; | |
| 19 | unsigned long long dur; | |
| 20 | unsigned long long ramp_time; | |
| 0a70e050 | 21 | |
| bb49c8bd | 22 | uint32_t state; |
| 0a70e050 JA |
23 | |
| 24 | unsigned int head; | |
| 25 | unsigned int tail; | |
| bb49c8bd VF |
26 | uint64_t *iops_data; |
| 27 | uint64_t *bw_data; | |
| 0a70e050 JA |
28 | |
| 29 | double slope; | |
| 0a70e050 | 30 | double deviation; |
| bb49c8bd | 31 | double criterion; |
| 0a70e050 | 32 | |
| 9d193019 VF |
33 | uint64_t sum_y; |
| 34 | uint64_t sum_x; | |
| 35 | uint64_t sum_x_sq; | |
| 36 | uint64_t sum_xy; | |
| 37 | uint64_t oldest_y; | |
| 0a70e050 | 38 | |
| 8b6a404c | 39 | struct timespec prev_time; |
| 9d193019 VF |
40 | uint64_t prev_iops; |
| 41 | uint64_t prev_bytes; | |
| 0a70e050 JA |
42 | }; |
| 43 | ||
| 4cd5b75b | 44 | enum { |
| c8caba48 JA |
45 | __FIO_SS_IOPS = 0, |
| 46 | __FIO_SS_BW, | |
| 47 | __FIO_SS_SLOPE, | |
| 48 | __FIO_SS_ATTAINED, | |
| 49 | __FIO_SS_RAMP_OVER, | |
| 50 | __FIO_SS_DATA, | |
| 51 | __FIO_SS_PCT, | |
| 52 | __FIO_SS_BUFFER_FULL, | |
| 53 | }; | |
| 54 | ||
| 55 | enum { | |
| 56 | FIO_SS_IOPS = 1 << __FIO_SS_IOPS, | |
| 57 | FIO_SS_BW = 1 << __FIO_SS_BW, | |
| 58 | FIO_SS_SLOPE = 1 << __FIO_SS_SLOPE, | |
| 59 | FIO_SS_ATTAINED = 1 << __FIO_SS_ATTAINED, | |
| 60 | FIO_SS_RAMP_OVER = 1 << __FIO_SS_RAMP_OVER, | |
| 61 | FIO_SS_DATA = 1 << __FIO_SS_DATA, | |
| 62 | FIO_SS_PCT = 1 << __FIO_SS_PCT, | |
| 63 | FIO_SS_BUFFER_FULL = 1 << __FIO_SS_BUFFER_FULL, | |
| 64 | ||
| 65 | FIO_SS_IOPS_SLOPE = FIO_SS_IOPS | FIO_SS_SLOPE, | |
| 66 | FIO_SS_BW_SLOPE = FIO_SS_BW | FIO_SS_SLOPE, | |
| 4cd5b75b JA |
67 | }; |
| 68 | ||
| 84784e07 JA |
69 | #define STEADYSTATE_MSEC 1000 |
| 70 | ||
| 16e56d25 | 71 | #endif |