| #ifndef FIO_STEADYSTATE_H |
| #define FIO_STEADYSTATE_H |
| |
| #include "thread_options.h" |
| |
| extern void steadystate_check(void); |
| extern void steadystate_setup(void); |
| extern void td_steadystate_init(struct thread_data *); |
| |
| extern bool steadystate_enabled; |
| |
| /* |
| * For steady state detection |
| */ |
| struct steadystate_data { |
| double limit; |
| unsigned long long dur; |
| unsigned long long ramp_time; |
| bool pct; |
| |
| unsigned int state; |
| |
| unsigned int head; |
| unsigned int tail; |
| unsigned long *iops_data; |
| unsigned long *bw_data; |
| |
| double slope; |
| double criterion; |
| double deviation; |
| |
| unsigned long long sum_y; |
| unsigned long long sum_x; |
| unsigned long long sum_x_sq; |
| unsigned long long sum_xy; |
| unsigned long long oldest_y; |
| |
| struct timeval prev_time; |
| unsigned long long prev_iops; |
| unsigned long long prev_bytes; |
| }; |
| |
| enum { |
| __FIO_SS_IOPS = 1, |
| __FIO_SS_BW = 2, |
| __FIO_SS_SLOPE = 4, |
| __FIO_SS_ATTAINED = 8, |
| __FIO_SS_RAMP_OVER = 16, |
| __FIO_SS_LAST = 32, |
| |
| FIO_SS_IOPS = __FIO_SS_IOPS, |
| FIO_SS_IOPS_SLOPE = __FIO_SS_IOPS | __FIO_SS_SLOPE, |
| FIO_SS_BW = __FIO_SS_BW, |
| FIO_SS_BW_SLOPE = __FIO_SS_BW | __FIO_SS_SLOPE, |
| }; |
| |
| #define STEADYSTATE_MSEC 1000 |
| |
| #endif |
