steadystate: eliminate some steadystate_data members

[fio.git] / steadystate.h

diff --git a/steadystate.h b/steadystate.h
index 7a1fecdbfc074fe87cbcd0f1ebe2e392bc93a671..86f975c8bac04b7021610e40e8311acdaffdfcca 100644 (file)
--- a/steadystate.h
+++ b/steadystate.h
@@ -1,9 +1,59 @@
 #ifndef FIO_STEADYSTATE_H
 #define FIO_STEADYSTATE_H
 
+#include "thread_options.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 *);
+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 mode;
+       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_SS_IOPS   = 1,
+       __FIO_SS_BW     = 2,
+       __FIO_SS_SLOPE  = 4,
+
+       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