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); | |
| ba8fb6f6 | 8 | extern void steadystate_alloc(struct thread_data *); |
| 4cd5b75b JA |
9 | |
| 10 | extern bool steadystate; | |
| 0a70e050 JA |
11 | |
| 12 | /* | |
| 13 | * For steady state detection | |
| 14 | */ | |
| 15 | struct steadystate_data { | |
| 16 | double limit; | |
| 17 | unsigned long long dur; | |
| 18 | unsigned long long ramp_time; | |
| 0a70e050 JA |
19 | bool check_iops; |
| 20 | bool check_slope; | |
| 21 | bool pct; | |
| 22 | ||
| 23 | int attained; | |
| 24 | int last_in_group; | |
| 25 | int ramp_time_over; | |
| 26 | ||
| 27 | unsigned int head; | |
| 28 | unsigned int tail; | |
| 29 | unsigned long *iops_data; | |
| 30 | unsigned long *bw_data; | |
| 31 | ||
| 32 | double slope; | |
| 33 | double criterion; | |
| 34 | double deviation; | |
| 35 | ||
| 36 | unsigned long long sum_y; | |
| 37 | unsigned long long sum_x; | |
| 38 | unsigned long long sum_x_sq; | |
| 39 | unsigned long long sum_xy; | |
| 40 | unsigned long long oldest_y; | |
| 41 | ||
| 42 | struct timeval prev_time; | |
| 43 | unsigned long long prev_iops; | |
| 44 | unsigned long long prev_bytes; | |
| 45 | }; | |
| 46 | ||
| 4cd5b75b JA |
47 | enum { |
| 48 | FIO_STEADYSTATE_IOPS = 0, | |
| 49 | FIO_STEADYSTATE_IOPS_SLOPE, | |
| 50 | FIO_STEADYSTATE_BW, | |
| 51 | FIO_STEADYSTATE_BW_SLOPE, | |
| 52 | }; | |
| 53 | ||
| 54 | static inline bool steadystate_check_slope(struct thread_options *o) | |
| 55 | { | |
| 56 | return o->ss == FIO_STEADYSTATE_IOPS_SLOPE || | |
| 57 | o->ss == FIO_STEADYSTATE_BW_SLOPE; | |
| 58 | } | |
| 59 | ||
| 60 | static inline bool steadystate_check_iops(struct thread_options *o) | |
| 61 | { | |
| 62 | return o->ss == FIO_STEADYSTATE_IOPS || | |
| 63 | o->ss == FIO_STEADYSTATE_IOPS_SLOPE; | |
| 64 | } | |
| 65 | ||
| 16e56d25 | 66 | #endif |