projects / fio.git / blame
| Commit | Line | Data |
|---|---|---|
| 16e56d25 VF |
1 | #ifndef FIO_STEADYSTATE_H |
| 2 | #define FIO_STEADYSTATE_H | |
| 3 | ||
| 4cd5b75b JA |
4 | #include "thread_options.h" |
| 5 | ||
| 16e56d25 VF |
6 | extern void steadystate_check(void); |
| 7 | extern void steadystate_setup(void); | |
| 56a90eba | 8 | extern int td_steadystate_init(struct thread_data *); |
| d685adfb VF |
9 | extern unsigned long long steadystate_bw_mean(struct steadystate_data *); |
| 10 | extern unsigned long long steadystate_iops_mean(struct steadystate_data *); | |
| 4cd5b75b | 11 | |
| 84784e07 | 12 | extern bool steadystate_enabled; |
| 0a70e050 JA |
13 | |
| 14 | /* | |
| 15 | * For steady state detection | |
| 16 | */ | |
| 17 | struct steadystate_data { | |
| 18 | double limit; | |
| 19 | unsigned long long dur; | |
| 20 | unsigned long long ramp_time; | |
| 0a70e050 | 21 | |
| 5b4b6586 | 22 | unsigned int state; |
| 0a70e050 JA |
23 | |
| 24 | unsigned int head; | |
| 25 | unsigned int tail; | |
| 26 | unsigned long *iops_data; | |
| 27 | unsigned long *bw_data; | |
| 28 | ||
| 29 | double slope; | |
| 30 | double criterion; | |
| 31 | double deviation; | |
| 32 | ||
| 33 | unsigned long long sum_y; | |
| 34 | unsigned long long sum_x; | |
| 35 | unsigned long long sum_x_sq; | |
| 36 | unsigned long long sum_xy; | |
| 37 | unsigned long long oldest_y; | |
| 38 | ||
| 39 | struct timeval prev_time; | |
| 40 | unsigned long long prev_iops; | |
| 41 | unsigned long long prev_bytes; | |
| 42 | }; | |
| 43 | ||
| 4cd5b75b | 44 | enum { |
| ad743db4 JA |
45 | __FIO_SS_IOPS = 1, |
| 46 | __FIO_SS_BW = 2, | |
| 47 | __FIO_SS_SLOPE = 4, | |
| 48 | __FIO_SS_ATTAINED = 8, | |
| 5b4b6586 | 49 | __FIO_SS_RAMP_OVER = 16, |
| ec55e631 | 50 | __FIO_SS_DATA = 32, |
| e6a6a984 | 51 | __FIO_SS_PCT = 64, |
| f0c50c66 JA |
52 | |
| 53 | FIO_SS_IOPS = __FIO_SS_IOPS, | |
| 54 | FIO_SS_IOPS_SLOPE = __FIO_SS_IOPS | __FIO_SS_SLOPE, | |
| 55 | FIO_SS_BW = __FIO_SS_BW, | |
| 56 | FIO_SS_BW_SLOPE = __FIO_SS_BW | __FIO_SS_SLOPE, | |
| 4cd5b75b JA |
57 | }; |
| 58 | ||
| 84784e07 JA |
59 | #define STEADYSTATE_MSEC 1000 |
| 60 | ||
| 16e56d25 | 61 | #endif |