Merge branch 'ci' of https://github.com/sitsofe/fio

[fio.git] / steadystate.h

diff --git a/steadystate.h b/steadystate.h
index 31e5c3fc42f27ff67ca6a06771e2f9fca0f0c41a..bbc3945ceb93e0bf89d89e7d2accdd6c34dd31dd 100644 (file)
--- a/steadystate.h
+++ b/steadystate.h
@@ -1,10 +1,61 @@
 #ifndef FIO_STEADYSTATE_H
 #define FIO_STEADYSTATE_H
 
+#include "stat.h"
+#include "thread_options.h"
+#include "lib/ieee754.h"
+
 extern void steadystate_check(void);
 extern void steadystate_setup(void);
-extern void steadystate_alloc(struct thread_data *);
-extern bool steadystate_deviation(unsigned long, unsigned long, struct thread_data *);
-extern bool steadystate_slope(unsigned long, unsigned long, struct thread_data *);
-#endif
+extern int td_steadystate_init(struct thread_data *);
+extern uint64_t steadystate_bw_mean(struct thread_stat *);
+extern uint64_t steadystate_iops_mean(struct thread_stat *);
+
+extern bool steadystate_enabled;
+
+struct steadystate_data {
+       double limit;
+       unsigned long long dur;
+       unsigned long long ramp_time;
+
+       uint32_t state;
+
+       unsigned int head;
+       unsigned int tail;
+       uint64_t *iops_data;
+       uint64_t *bw_data;
+
+       double slope;
+       double deviation;
+       double criterion;
 
+       uint64_t sum_y;
+       uint64_t sum_x;
+       uint64_t sum_x_sq;
+       uint64_t sum_xy;
+       uint64_t oldest_y;
+
+       struct timespec prev_time;
+       uint64_t prev_iops;
+       uint64_t 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_DATA           = 32,
+       __FIO_SS_PCT            = 64,
+       __FIO_SS_BUFFER_FULL    = 128,
+
+       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