X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=steadystate.h;h=9fd88ee8cec4c2bad0c61e8c68e73b03d9358be5;hp=7a1fecdbfc074fe87cbcd0f1ebe2e392bc93a671;hb=c27cc65f33f4f39e33e5203199048e0a85a8921c;hpb=bfc4884ea2d7847675c27c7bc0458ff5f614735d

diff --git a/steadystate.h b/steadystate.h
index 7a1fecdb..9fd88ee8 100644
--- a/steadystate.h
+++ b/steadystate.h
@@ -1,9 +1,71 @@
 #ifndef FIO_STEADYSTATE_H
 #define FIO_STEADYSTATE_H
 
+#include "stat.h"
+#include "thread_options.h"
+#include "lib/ieee754.h"
+
+extern void steadystate_free(struct thread_data *);
 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 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 = 0,
+	__FIO_SS_BW,
+	__FIO_SS_SLOPE,
+	__FIO_SS_ATTAINED,
+	__FIO_SS_RAMP_OVER,
+	__FIO_SS_DATA,
+	__FIO_SS_PCT,
+	__FIO_SS_BUFFER_FULL,
+};
+
+enum {
+	FIO_SS_IOPS		= 1 << __FIO_SS_IOPS,
+	FIO_SS_BW		= 1 << __FIO_SS_BW,
+	FIO_SS_SLOPE		= 1 << __FIO_SS_SLOPE,
+	FIO_SS_ATTAINED		= 1 << __FIO_SS_ATTAINED,
+	FIO_SS_RAMP_OVER	= 1 << __FIO_SS_RAMP_OVER,
+	FIO_SS_DATA		= 1 << __FIO_SS_DATA,
+	FIO_SS_PCT		= 1 << __FIO_SS_PCT,
+	FIO_SS_BUFFER_FULL	= 1 << __FIO_SS_BUFFER_FULL,
+
+	FIO_SS_IOPS_SLOPE	= FIO_SS_IOPS | FIO_SS_SLOPE,
+	FIO_SS_BW_SLOPE		= FIO_SS_BW | FIO_SS_SLOPE,
+};
+
+#define STEADYSTATE_MSEC	1000
+
 #endif