sbin/hammer/cmd_stats.c

   1 /*
   2  * Copyright (c) 2008 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Matthew Dillon <dillon@backplane.com>
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  * $DragonFly: src/sbin/hammer/cmd_stats.c,v 1.3 2008/07/14 20:28:07 dillon Exp $
  35  */
  36
  37 #include <math.h>
  38
  39 #include "hammer.h"
  40
  41
  42 static void loaddelay(struct timespec *ts, const char *arg);
  43
  44 void
  45 hammer_cmd_bstats(char **av, int ac)
  46 {
  47         struct libhammer_btree_stats bs, bsc;
  48         struct timespec delay = { 1, 0 };
  49         int count;
  50
  51         if (ac > 0)
  52                 loaddelay(&delay, av[0]);
  53
  54         bzero(&bsc, sizeof(bsc));
  55         for (count = 0; ; ++count) {
  56                 if (libhammer_btree_stats(&bs) < 0)
  57                         err(1, "Failed to get information from HAMMER sysctls");
  58                 if (count) {
  59                         if ((count & 15) == 1)
  60                                 printf("  elements iterations    lookups    "
  61                                     "inserts    deletes     splits\n");
  62                         printf("%10jd %10jd %10jd %10jd %10jd %10jd\n",
  63                             (intmax_t)(bs.elements - bsc.elements),
  64                             (intmax_t)(bs.iterations - bsc.iterations),
  65                             (intmax_t)(bs.lookups - bsc.lookups),
  66                             (intmax_t)(bs.inserts - bsc.inserts),
  67                             (intmax_t)(bs.deletes - bsc.deletes),
  68                             (intmax_t)(bs.splits - bsc.splits));
  69                 }
  70                 bcopy(&bs, &bsc, sizeof(bs));
  71                 nanosleep(&delay, NULL);
  72         }
  73 }
  74
  75 void
  76 hammer_cmd_iostats(char **av, int ac)
  77 {
  78         struct libhammer_io_stats ios, iosc;
  79         struct timespec delay = { 1, 0 };
  80         int64_t tiops = 0;
  81         int count;
  82
  83         if (ac > 0)
  84                 loaddelay(&delay, av[0]);
  85
  86         bzero(&iosc, sizeof(iosc));
  87         for (count = 0; ; ++count) {
  88                 if (libhammer_io_stats(&ios) < 0)
  89                         err(1, "Failed to get information from HAMMER sysctls");
  90                 tiops = (ios.file_iop_writes + ios.file_iop_reads) -
  91                     (iosc.file_iop_writes + iosc.file_iop_reads);
  92                 if (count) {
  93                         if ((count & 15) == 1)
  94                                 printf("  file-rd   file-wr  dev-read dev-write"
  95                                     " inode_ops ino_flush    commit      undo\n");
  96                         printf("%9jd %9jd %9jd %9jd %9jd %9jd %9jd %9jd\n",
  97                             (intmax_t)(ios.file_reads - iosc.file_reads),
  98                             (intmax_t)(ios.file_writes - iosc.file_writes),
  99                             (intmax_t)(ios.dev_reads - iosc.dev_reads),
 100                             (intmax_t)(ios.dev_writes - iosc.dev_writes),
 101                             (intmax_t)tiops,
 102                             (intmax_t)(ios.inode_flushes - iosc.inode_flushes),
 103                             (intmax_t)(ios.commits - iosc.commits),
 104                             (intmax_t)(ios.undo - iosc.undo));
 105                 }
 106                 nanosleep(&delay, NULL);
 107                 bcopy(&ios, &iosc, sizeof(ios));
 108         }
 109 }
 110
 111 /*
 112  * Convert a delay string (e.g. "0.1") into a timespec.
 113  */
 114 static
 115 void
 116 loaddelay(struct timespec *ts, const char *arg)
 117 {
 118         double d;
 119
 120         d = strtod(arg, NULL);
 121         if (d < 0.001)
 122                 d = 0.001;
 123         ts->tv_sec = (int)d;
 124         ts->tv_nsec = (int)(modf(d, &d) * 1000000000.0);
 125 }