steadystate: cleanups

[fio.git] / steadystate.h

diff --git a/steadystate.h b/steadystate.h
index 039ffc900acbe37085f65962d8190ae3408043c8..aa31112bf5163ef3784c1266f5f962c7044057e9 100644 (file)
--- a/steadystate.h
+++ b/steadystate.h
@@ -1,9 +1,66 @@
 #ifndef FIO_STEADYSTATE_H
 #define FIO_STEADYSTATE_H
 
+#include "thread_options.h"
+
 extern void steadystate_check(void);
 extern void steadystate_setup(void);
-extern bool steadystate_deviation(unsigned long, unsigned long, struct thread_data *);
-extern bool steadystate_slope(unsigned long, unsigned long, struct thread_data *);
-#endif
+extern void steadystate_alloc(struct thread_data *);
+
+extern bool steadystate;
+
+/*
+ * For steady state detection
+ */
+struct steadystate_data {
+       double limit;
+       unsigned long long dur;
+       unsigned long long ramp_time;
+       bool check_iops;
+       bool check_slope;
+       bool pct;
+
+       int attained;
+       int last_in_group;
+       int ramp_time_over;
+
+       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_STEADYSTATE_IOPS    = 0,
+       FIO_STEADYSTATE_IOPS_SLOPE,
+       FIO_STEADYSTATE_BW,
+       FIO_STEADYSTATE_BW_SLOPE,
+};
+
+static inline bool steadystate_check_slope(struct thread_options *o)
+{
+       return o->ss == FIO_STEADYSTATE_IOPS_SLOPE ||
+               o->ss == FIO_STEADYSTATE_BW_SLOPE;
+}
+
+static inline bool steadystate_check_iops(struct thread_options *o)
+{
+       return o->ss == FIO_STEADYSTATE_IOPS ||
+               o->ss == FIO_STEADYSTATE_IOPS_SLOPE;
+}
+
+#endif