X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=stat.h;h=ba66c407a71a4cb1ba6f254900eee2b95ce25135;hp=132dee3cd876dcda01d18e60b576049a66f00eb1;hb=057bc4a6587d99088bfe4da28f43501212137ad4;hpb=74558486d208cc073ef3f3f963a51381b9215a04

diff --git a/stat.h b/stat.h
index 132dee3c..ba66c407 100644
--- a/stat.h
+++ b/stat.h
@@ -11,6 +11,7 @@ struct group_run_stats {
 	uint64_t agg[DDIR_RWDIR_CNT];
 	uint32_t kb_base;
 	uint32_t unit_base;
+	uint32_t sig_figs;
 	uint32_t groupid;
 	uint32_t unified_rw_rep;
 } __attribute__((packed));
@@ -23,6 +24,16 @@ struct group_run_stats {
 #define FIO_IO_U_LAT_U_NR 10
 #define FIO_IO_U_LAT_M_NR 12
 
+/*
+ * Constants for clat percentiles
+ */
+#define FIO_IO_U_PLAT_BITS 6
+#define FIO_IO_U_PLAT_VAL (1 << FIO_IO_U_PLAT_BITS)
+#define FIO_IO_U_PLAT_GROUP_NR 29
+#define FIO_IO_U_PLAT_NR (FIO_IO_U_PLAT_GROUP_NR * FIO_IO_U_PLAT_VAL)
+#define FIO_IO_U_LIST_MAX_LEN 20 /* The size of the default and user-specified
+					list of percentiles */
+
 /*
  * Aggregate clat samples to report percentile(s) of them.
  *
@@ -34,7 +45,7 @@ struct group_run_stats {
  *
  * FIO_IO_U_PLAT_GROUP_NR and FIO_IO_U_PLAT_BITS determine the maximum
  * range being tracked for latency samples. The maximum value tracked
- * accurately will be 2^(GROUP_NR + PLAT_BITS -1) microseconds.
+ * accurately will be 2^(GROUP_NR + PLAT_BITS - 1) nanoseconds.
  *
  * FIO_IO_U_PLAT_GROUP_NR and FIO_IO_U_PLAT_BITS determine the memory
  * requirement of storing those aggregate counts. The memory used will
@@ -98,22 +109,15 @@ struct group_run_stats {
  *	3	8	2		[256,511]		64
  *	4	9	3		[512,1023]		64
  *	...	...	...		[...,...]		...
- *	18	23	17		[8838608,+inf]**	64
+ *	28	33	27		[8589934592,+inf]**	64
  *
  *  * Special cases: when n < (M-1) or when n == (M-1), in both cases,
  *    the value cannot be rounded off. Use all bits of the sample as
  *    index.
  *
- *  ** If a sample's MSB is greater than 23, it will be counted as 23.
+ *  ** If a sample's MSB is greater than 33, it will be counted as 33.
  */
 
-#define FIO_IO_U_PLAT_BITS 6
-#define FIO_IO_U_PLAT_VAL (1 << FIO_IO_U_PLAT_BITS)
-#define FIO_IO_U_PLAT_GROUP_NR 29
-#define FIO_IO_U_PLAT_NR (FIO_IO_U_PLAT_GROUP_NR * FIO_IO_U_PLAT_VAL)
-#define FIO_IO_U_LIST_MAX_LEN 20 /* The size of the default and user-specified
-					list of percentiles */
-
 /*
  * Trim cycle count measurements
  */
@@ -172,7 +176,8 @@ struct thread_stat {
 	/*
 	 * IO depth and latency stats
 	 */
-	uint64_t clat_percentiles;
+	uint32_t clat_percentiles;
+	uint32_t lat_percentiles;
 	uint64_t percentile_precision;
 	fio_fp64_t percentile_list[FIO_IO_U_LIST_MAX_LEN];
 
@@ -217,6 +222,8 @@ struct thread_stat {
 	fio_fp64_t latency_percentile;
 	uint64_t latency_window;
 
+	uint32_t sig_figs;
+
 	uint64_t ss_dur;
 	uint32_t ss_state;
 	uint32_t ss_head;
@@ -253,6 +260,8 @@ struct jobs_eta {
 	uint32_t is_pow2;
 	uint32_t unit_base;
 
+	uint32_t sig_figs;
+
 	uint32_t files_open;
 
 	/*
@@ -289,7 +298,7 @@ extern void init_thread_stat(struct thread_stat *ts);
 extern void init_group_run_stat(struct group_run_stats *gs);
 extern void eta_to_str(char *str, unsigned long eta_sec);
 extern bool calc_lat(struct io_stat *is, unsigned long long *min, unsigned long long *max, double *mean, double *dev);
-extern unsigned int calc_clat_percentiles(unsigned int *io_u_plat, unsigned long nr, fio_fp64_t *plist, unsigned long long **output, unsigned long long *maxv, unsigned long long *minv);
+extern unsigned int calc_clat_percentiles(unsigned int *io_u_plat, unsigned long long nr, fio_fp64_t *plist, unsigned long long **output, unsigned long long *maxv, unsigned long long *minv);
 extern void stat_calc_lat_n(struct thread_stat *ts, double *io_u_lat);
 extern void stat_calc_lat_m(struct thread_stat *ts, double *io_u_lat);
 extern void stat_calc_lat_u(struct thread_stat *ts, double *io_u_lat);