Annotation of src/usr.bin/systat/iostat.c, Revision 1.29
1.29 ! beck 1: /* $OpenBSD: iostat.c,v 1.28 2007/05/30 05:20:58 otto Exp $ */
1.3 deraadt 2: /* $NetBSD: iostat.c,v 1.5 1996/05/10 23:16:35 thorpej Exp $ */
1.1 deraadt 3:
4: /*
5: * Copyright (c) 1980, 1992, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
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 the
15: * documentation and/or other materials provided with the distribution.
1.21 millert 16: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: */
32:
33: #ifndef lint
34: #if 0
35: static char sccsid[] = "@(#)iostat.c 8.1 (Berkeley) 6/6/93";
36: #endif
1.29 ! beck 37: static char rcsid[] = "$OpenBSD: iostat.c,v 1.28 2007/05/30 05:20:58 otto Exp $";
1.12 heko 38: #endif /* not lint */
1.1 deraadt 39:
40: #include <sys/param.h>
41: #include <sys/dkstat.h>
42: #include <sys/buf.h>
1.3 deraadt 43: #include <sys/time.h>
1.29 ! beck 44: #include <sys/sysctl.h>
! 45: #include <sys/mount.h>
1.1 deraadt 46:
47: #include <string.h>
48: #include <stdlib.h>
49: #include <paths.h>
50: #include "systat.h"
51: #include "extern.h"
52:
1.3 deraadt 53: #include "dkstats.h"
1.19 tdeval 54: extern struct _disk cur, last;
1.29 ! beck 55: struct bcachestats bclast, bccur;
1.1 deraadt 56:
1.25 dlg 57: static double etime;
1.1 deraadt 58:
1.25 dlg 59: static void numlabels(void);
60:
1.26 dlg 61: #define ATIME(x,y) ((double)x[y].tv_sec + \
62: ((double)x[y].tv_usec / (double)1000000))
63:
1.29 ! beck 64: #define NFMT "%-6.6s %8.0f %8.0f %6.0f %6.0f %4.1f"
! 65: #define SFMT "%-6.6s %8s %8s %6s %6s %4s"
! 66: #define BCSCOL 50
1.1 deraadt 67:
68: WINDOW *
1.18 deraadt 69: openiostat(void)
1.1 deraadt 70: {
1.29 ! beck 71: bzero(&bccur, sizeof(bccur));
1.27 deraadt 72: return (subwin(stdscr, LINES-1-1, 0, 1, 0));
1.1 deraadt 73: }
74:
75: void
1.18 deraadt 76: closeiostat(WINDOW *w)
1.1 deraadt 77: {
78: if (w == NULL)
79: return;
80: wclear(w);
81: wrefresh(w);
82: delwin(w);
83: }
84:
85: int
1.18 deraadt 86: initiostat(void)
1.1 deraadt 87: {
1.3 deraadt 88: dkinit(1);
89: dkreadstats();
1.9 kstailey 90: return (1);
1.1 deraadt 91: }
92:
93: void
1.18 deraadt 94: fetchiostat(void)
1.1 deraadt 95: {
1.29 ! beck 96: int mib[3];
! 97: size_t size;
! 98:
1.19 tdeval 99: if (cur.dk_ndrive == 0)
1.1 deraadt 100: return;
1.3 deraadt 101: dkreadstats();
1.29 ! beck 102:
! 103: bclast = bccur;
! 104: mib[0] = CTL_VFS;
! 105: mib[1] = VFS_GENERIC;
! 106: mib[2] = VFS_BCACHESTAT;
! 107: size = sizeof(bccur);
! 108: if (sysctl(mib, 3, &bccur, &size, NULL, 0) < 0)
! 109: mvwaddstr(wnd, 20, 0, "cannot get vfs.bcachestat");
! 110: if (bclast.numbufs == 0)
! 111: bclast = bccur;
1.1 deraadt 112: }
113:
114: void
1.18 deraadt 115: labeliostat(void)
1.1 deraadt 116: {
1.26 dlg 117: mvwprintw(wnd, 1, 0, SFMT, "Device", "rKBytes", "wKBytes", "rtps",
1.28 otto 118: "wtps", "sec");
1.29 ! beck 119: mvwprintw(wnd, 1, BCSCOL + 16, "numbufs");
! 120: mvwprintw(wnd, 2, BCSCOL + 16, "freebufs");
! 121: mvwprintw(wnd, 3, BCSCOL + 16, "numbufpages");
! 122: mvwprintw(wnd, 4, BCSCOL + 16, "numfreepages");
! 123: mvwprintw(wnd, 5, BCSCOL + 16, "numdirtypages");
! 124: mvwprintw(wnd, 6, BCSCOL + 16, "numcleanpages");
! 125: mvwprintw(wnd, 7, BCSCOL + 16, "pendingwrites");
! 126: mvwprintw(wnd, 8, BCSCOL + 16, "pendingreads");
! 127: mvwprintw(wnd, 9, BCSCOL + 16, "numwrites");
! 128: mvwprintw(wnd, 10, BCSCOL + 16, "numreads");
! 129: mvwprintw(wnd, 11, BCSCOL + 16, "cachehits");
1.1 deraadt 130: }
131:
132: void
1.18 deraadt 133: showiostat(void)
1.1 deraadt 134: {
1.25 dlg 135: int i;
1.1 deraadt 136:
1.3 deraadt 137: dkswap();
138:
1.25 dlg 139: etime = 0.0;
1.18 deraadt 140: for (i = 0; i < CPUSTATES; i++) {
1.3 deraadt 141: etime += cur.cp_time[i];
1.1 deraadt 142: }
1.25 dlg 143:
1.1 deraadt 144: if (etime == 0.0)
145: etime = 1.0;
1.25 dlg 146:
1.1 deraadt 147: etime /= (float) hz;
1.7 kstailey 148:
1.19 tdeval 149: if (last.dk_ndrive != cur.dk_ndrive)
150: labeliostat();
151:
152: if (cur.dk_ndrive == 0)
1.7 kstailey 153: return;
154:
1.25 dlg 155: numlabels();
1.29 ! beck 156:
! 157: mvwprintw(wnd, 1, BCSCOL, "%15ld", bccur.numbufs);
! 158: mvwprintw(wnd, 2, BCSCOL, "%15ld", bccur.freebufs);
! 159: mvwprintw(wnd, 3, BCSCOL, "%15ld", bccur.numbufpages);
! 160: if (bccur.numfreepages)
! 161: mvwprintw(wnd, 4, BCSCOL, "%15ld", bccur.numfreepages);
! 162: else
! 163: mvwprintw(wnd, 4, BCSCOL, "%15s", "");
! 164: if (bccur.numdirtypages)
! 165: mvwprintw(wnd, 5, BCSCOL, "%15ld", bccur.numdirtypages);
! 166: else
! 167: mvwprintw(wnd, 5, BCSCOL, "%15s", "");
! 168: if (bccur.numcleanpages)
! 169: mvwprintw(wnd, 6, BCSCOL, "%15ld", bccur.numcleanpages);
! 170: else
! 171: mvwprintw(wnd, 6, BCSCOL, "%15s", "");
! 172: if (bccur.pendingwrites)
! 173: mvwprintw(wnd, 7, BCSCOL, "%15ld", bccur.pendingwrites);
! 174: else
! 175: mvwprintw(wnd, 7, BCSCOL, "%15s", "");
! 176: if (bccur.pendingreads)
! 177: mvwprintw(wnd, 8, BCSCOL, "%15ld", bccur.pendingreads);
! 178: else
! 179: mvwprintw(wnd, 8, BCSCOL, "%15s", "");
! 180: if (bccur.numwrites - bclast.numwrites)
! 181: mvwprintw(wnd, 9, BCSCOL, "%15ld",
! 182: bccur.numwrites - bclast.numwrites);
! 183: else
! 184: mvwprintw(wnd, 9, BCSCOL, "%15s", "");
! 185: if (bccur.numreads - bclast.numreads)
! 186: mvwprintw(wnd, 10, BCSCOL, "%15ld",
! 187: bccur.numreads - bclast.numreads);
! 188: else
! 189: mvwprintw(wnd, 10, BCSCOL, "%15s", "");
! 190: if (bccur.cachehits - bclast.cachehits)
! 191: mvwprintw(wnd, 11, BCSCOL, "%15ld",
! 192: bccur.cachehits - bclast.cachehits);
! 193: else
! 194: mvwprintw(wnd, 11, BCSCOL, "%15s", "");
1.1 deraadt 195: }
196:
1.25 dlg 197: void
198: numlabels(void)
1.1 deraadt 199: {
1.25 dlg 200: double rsum, wsum, rtsum, wtsum, mssum;
201: int row, dn;
1.3 deraadt 202:
1.25 dlg 203: row = 2;
204: wmove(wnd, 0, 0);
205: wclrtoeol(wnd);
206:
207: if (cur.dk_ndrive == 0) {
208: mvwaddstr(wnd, row, 0, "No drives attached.");
209: return;
1.23 tedu 210: }
1.1 deraadt 211:
1.25 dlg 212: rsum = wsum = rtsum = wtsum = mssum = 0.0;
1.1 deraadt 213:
1.25 dlg 214: for (dn = 0; dn < cur.dk_ndrive; dn++) {
215: rsum += cur.dk_rbytes[dn] / etime;
1.26 dlg 216: wsum += cur.dk_wbytes[dn] / etime;
1.25 dlg 217: rtsum += cur.dk_rxfer[dn] / etime;
218: wtsum += cur.dk_wxfer[dn] / etime;
219: mssum += ATIME(cur.dk_time, dn) / etime;
220: mvwprintw(wnd, row++, 0, NFMT,
221: cur.dk_name[dn],
1.26 dlg 222: cur.dk_rbytes[dn] / 1024.0 / etime,
223: cur.dk_wbytes[dn] / 1024.0 / etime,
1.25 dlg 224: cur.dk_rxfer[dn] / etime,
225: cur.dk_wxfer[dn] / etime,
226: ATIME(cur.dk_time, dn) / etime);
1.1 deraadt 227: }
1.25 dlg 228: mvwprintw(wnd, row++, 0, NFMT,
1.26 dlg 229: "Totals", rsum / 1024.0, wsum / 1024.0, rtsum, wtsum, mssum);
1.1 deraadt 230: }
231:
232: int
1.18 deraadt 233: cmdiostat(char *cmd, char *args)
1.1 deraadt 234: {
235: wclear(wnd);
236: labeliostat();
237: refresh();
238: return (1);
239: }
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