1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25 
  26 #ifndef _FB_STATS_H
  27 #define _FB_STATS_H
  28 
  29 #include "config.h"
  30 #ifdef HAVE_STDINT_H
  31 #include <stdint.h>
  32 #endif
  33 
  34 #ifdef  __cplusplus
  35 extern "C" {
  36 #endif
  37 
  38 var_t *stats_findvar(var_t *var, char *name);
  39 void stats_init(void);
  40 void stats_clear(void);
  41 void stats_snap(void);
  42 void stats_dump(char *filename);
  43 void stats_xmldump(char *filename);
  44 void stats_multidump(char *filename);
  45 
  46 #ifndef HAVE_HRTIME
  47 /* typedef uint64_t hrtime_t; */
  48 #define hrtime_t uint64_t
  49 #endif
  50 
  51 #define STATS_VAR "stats."
  52 
  53 #define FLOW_MSTATES 4
  54 #define FLOW_MSTATE_LAT 0       /* Total service time of op */
  55 #define FLOW_MSTATE_CPU 1       /* On-cpu time of op */
  56 #define FLOW_MSTATE_WAIT 2      /* Wait-time, excluding waiting for CPU */
  57 #define FLOW_MSTATE_OHEAD 3     /* overhead time, around op */
  58 
  59 typedef struct flowstats {
  60         int             fs_children;    /* Number of contributors */
  61         int             fs_active;      /* Number of active contributors */
  62         int             fs_count;       /* Number of ops */
  63         uint64_t        fs_rbytes;      /* Number of bytes  */
  64         uint64_t        fs_wbytes;      /* Number of bytes  */
  65         uint64_t        fs_bytes;       /* Number of bytes  */
  66         uint64_t        fs_rcount;      /* Number of ops */
  67         uint64_t        fs_wcount;      /* Number of ops */
  68         hrtime_t        fs_stime;       /* Time stats for flow started */
  69         hrtime_t        fs_etime;       /* Time stats for flow ended */
  70         hrtime_t        fs_mstate[FLOW_MSTATES]; /* Microstate breakdown */
  71         hrtime_t        fs_syscpu;      /* System wide cpu, global only */
  72 } flowstat_t;
  73 
  74 
  75 #define IS_FLOW_IOP(x) (x->fo_stats.fs_rcount + x->fo_stats.fs_wcount)
  76 #define STAT_IOPS(x)   ((x->fs_rcount) + (x->fs_wcount))
  77 #define IS_FLOW_ACTIVE(x) (x->fo_stats.fs_count)
  78 #define STAT_CPUTIME(x) (x->fs_cpu_op)
  79 #define STAT_OHEADTIME(x) (x->fs_cpu_ohead)
  80 
  81 #ifdef  __cplusplus
  82 }
  83 #endif
  84 
  85 #endif  /* _FB_STATS_H */