1 /* $NetBSD: drvstats.h,v 1.5 2017/07/04 21:19:33 mlelstv Exp $ */ 2 3 /* 4 * Copyright (c) 1996 John M. Vinopal 5 * All rights reserved. 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 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed for the NetBSD Project 18 * by John M. Vinopal. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR 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 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #include <sys/time.h> 36 #include <sys/sched.h> 37 #include <unistd.h> 38 39 /* poseur disk entry to hold the information we're interested in. */ 40 struct _drive { 41 int *select; /* Display stats for selected disks. */ 42 char **name; /* Disk names (sd0, wd1, etc). */ 43 u_int64_t *rxfer; /* # of read transfers. */ 44 u_int64_t *wxfer; /* # of write transfers. */ 45 u_int64_t *seek; /* # of seeks (currently unused). */ 46 u_int64_t *rbytes; /* # of bytes read. */ 47 u_int64_t *wbytes; /* # of bytes written. */ 48 struct timeval *time; /* Time spent in disk i/o. */ 49 struct timeval *wait; /* Time spent in queue waiting. */ 50 struct timeval *busysum; /* Time busy * queue length */ 51 struct timeval *waitsum; /* Time waiting * queue length */ 52 struct timeval *timestamp; /* Disk sample time */ 53 u_int64_t tk_nin; /* TTY Chars in. */ 54 u_int64_t tk_nout; /* TTY Chars out. */ 55 u_int64_t cp_time[CPUSTATES]; /* System timer ticks. */ 56 int cp_ncpu; /* Number of cpu's */ 57 double cp_etime; /* Elapsed time */ 58 }; 59 60 extern struct _drive cur; 61 extern char **dr_name; 62 extern int *drv_select; 63 extern size_t ndrive; 64 65 int drvinit(int); 66 void cpureadstats(void); 67 void drvreadstats(void); 68 void tkreadstats(void); 69 void cpuswap(void); 70 void drvswap(void); 71 void tkswap(void); 72