| 1 | /* |
| 2 | * Copyright (c) 1980 Regents of the University of California. |
| 3 | * All rights reserved. The Berkeley software License Agreement |
| 4 | * specifies the terms and conditions for redistribution. |
| 5 | */ |
| 6 | |
| 7 | #ifndef lint |
| 8 | static char sccsid[] = "@(#)swap.c 5.4 (Berkeley) %G%"; |
| 9 | #endif not lint |
| 10 | |
| 11 | #include "systat.h" |
| 12 | #include <sys/dir.h> |
| 13 | #include <sys/user.h> |
| 14 | #include <sys/proc.h> |
| 15 | #include <sys/text.h> |
| 16 | #include <sys/conf.h> |
| 17 | #include <sys/vmmac.h> |
| 18 | #include <machine/pte.h> |
| 19 | |
| 20 | WINDOW * |
| 21 | openswap() |
| 22 | { |
| 23 | |
| 24 | return (subwin(stdscr, LINES-5-1, 0, 5, 0)); |
| 25 | } |
| 26 | |
| 27 | closeswap(w) |
| 28 | WINDOW *w; |
| 29 | { |
| 30 | |
| 31 | if (w == NULL) |
| 32 | return; |
| 33 | wclear(w); |
| 34 | wrefresh(w); |
| 35 | delwin(w); |
| 36 | } |
| 37 | |
| 38 | int dmmin; |
| 39 | int dmmax; |
| 40 | int dmtext; |
| 41 | int nswdev; |
| 42 | #define MAXSWAPDEV 4 |
| 43 | short buckets[MAXSWAPDEV][NDMAP]; |
| 44 | struct swdevt *swdevt; |
| 45 | int colwidth; |
| 46 | |
| 47 | extern union { |
| 48 | struct user user; |
| 49 | char upages[UPAGES][NBPG]; |
| 50 | } user; |
| 51 | #define u user.user |
| 52 | |
| 53 | showswap() |
| 54 | { |
| 55 | register int i, j; |
| 56 | register struct proc *pp; |
| 57 | register struct text *xp; |
| 58 | register int row; |
| 59 | register int ts; |
| 60 | register swblk_t *dp; |
| 61 | |
| 62 | if (xtext == 0) |
| 63 | return; |
| 64 | for (xp = xtext; xp < &xtext[ntext]; xp++) { |
| 65 | if (xp->x_iptr == NULL) |
| 66 | continue; |
| 67 | ts = ctod(xp->x_size); |
| 68 | dp = xp->x_daddr; |
| 69 | for (i = 0; i < ts; i += dmtext) { |
| 70 | j = ts - i; |
| 71 | if (j > dmtext) |
| 72 | j = dmtext; |
| 73 | #define swatodev(addr) (((addr) / dmmax) % nswdev) |
| 74 | buckets[swatodev(*dp)][dmtoindex(j)]++; |
| 75 | dp++; |
| 76 | } |
| 77 | if ((xp->x_flag & XPAGI) && xp->x_ptdaddr) |
| 78 | buckets[swatodev(xp->x_ptdaddr)] |
| 79 | [dmtoindex(ctod(ctopt(xp->x_size)))]++; |
| 80 | } |
| 81 | row = swapdisplay(2, dmtext, 'X'); |
| 82 | if (kprocp == NULL) |
| 83 | return; |
| 84 | for (i = 0, pp = kprocp; i < nproc; i++, pp++) { |
| 85 | if (pp->p_stat == 0 || pp->p_stat == SZOMB) |
| 86 | continue; |
| 87 | if (pp->p_flag & SSYS) |
| 88 | continue; |
| 89 | if (getu(pp) == 0) |
| 90 | continue; |
| 91 | vsacct(&u.u_dmap); |
| 92 | vsacct(&u.u_smap); |
| 93 | #ifdef notdef |
| 94 | if ((pp->p_flag & SLOAD) == 0) |
| 95 | vusize(pp); |
| 96 | #endif |
| 97 | } |
| 98 | (void) swapdisplay(1+row, dmmax, 'X'); |
| 99 | } |
| 100 | |
| 101 | #define OFFSET 5 /* left hand column */ |
| 102 | |
| 103 | swapdisplay(baserow, dmbound, c) |
| 104 | int baserow, dmbound; |
| 105 | char c; |
| 106 | { |
| 107 | register int i, j, k, row; |
| 108 | register short *pb; |
| 109 | char buf[10]; |
| 110 | |
| 111 | for (row = baserow, i = dmmin; i <= dmbound; i *= 2, row++) { |
| 112 | for (j = 0; j < nswdev; j++) { |
| 113 | pb = &buckets[j][row - baserow]; |
| 114 | wmove(wnd, row, OFFSET + j * (1 + colwidth)); |
| 115 | k = MIN(*pb, colwidth); |
| 116 | if (*pb > colwidth) { |
| 117 | sprintf(buf, " %d", *pb); |
| 118 | k -= strlen(buf); |
| 119 | while (k--) |
| 120 | waddch(wnd, c); |
| 121 | waddstr(wnd, buf); |
| 122 | } else { |
| 123 | while (k--) |
| 124 | waddch(wnd, c); |
| 125 | k = MAX(colwidth - *pb, 0); |
| 126 | while (k--) |
| 127 | waddch(wnd, ' '); |
| 128 | } |
| 129 | *pb = 0; |
| 130 | } |
| 131 | } |
| 132 | return (row); |
| 133 | } |
| 134 | |
| 135 | vsacct(dmp) |
| 136 | register struct dmap *dmp; |
| 137 | { |
| 138 | register swblk_t *ip; |
| 139 | register int blk = dmmin, index = 0; |
| 140 | |
| 141 | for (ip = dmp->dm_map; dmp->dm_alloc > 0; ip++) { |
| 142 | if (ip - dmp->dm_map >= NDMAP) { |
| 143 | error("vsacct NDMAP"); |
| 144 | break; |
| 145 | } |
| 146 | if (*ip == 0) |
| 147 | error("vsacct *ip == 0"); |
| 148 | buckets[swatodev(*ip)][index]++; |
| 149 | dmp->dm_alloc -= blk; |
| 150 | if (blk < dmmax) { |
| 151 | blk *= 2; |
| 152 | index++; |
| 153 | } |
| 154 | } |
| 155 | } |
| 156 | |
| 157 | dmtoindex(dm) |
| 158 | int dm; |
| 159 | { |
| 160 | register int i, j; |
| 161 | |
| 162 | for (j = 0, i = dmmin; i <= dmmax; i *= 2, j++) |
| 163 | if (dm <= i) |
| 164 | return (j); |
| 165 | error("dmtoindex(%d)", dm); |
| 166 | return (NDMAP - 1); |
| 167 | } |
| 168 | |
| 169 | static struct nlist nlst[] = { |
| 170 | #define X_PROC 0 |
| 171 | { "_proc" }, |
| 172 | #define X_NPROC 1 |
| 173 | { "_nproc" }, |
| 174 | #define X_USRPTMAP 2 |
| 175 | { "_Usrptmap" }, |
| 176 | #define X_USRPT 3 |
| 177 | { "_usrpt" }, |
| 178 | #define X_NSWAP 4 |
| 179 | { "_nswap" }, |
| 180 | #define X_DMMIN 5 |
| 181 | { "_dmmin" }, |
| 182 | #define X_DMMAX 6 |
| 183 | { "_dmmax" }, |
| 184 | #define X_DMTEXT 7 |
| 185 | { "_dmtext" }, |
| 186 | #define X_NSWDEV 8 |
| 187 | { "_nswdev" }, |
| 188 | #define X_SWDEVT 9 |
| 189 | { "_swdevt" }, |
| 190 | #define X_NTEXT 10 |
| 191 | { "_ntext" }, |
| 192 | #define X_TEXT 11 |
| 193 | { "_text" }, |
| 194 | { "" } |
| 195 | }; |
| 196 | |
| 197 | initswap() |
| 198 | { |
| 199 | |
| 200 | if (nlst[X_PROC].n_type == 0) { |
| 201 | nlist("/vmunix", nlst); |
| 202 | if (nlst[X_PROC].n_type == 0) { |
| 203 | error("namelist on /vmunix failed"); |
| 204 | return(0); |
| 205 | } |
| 206 | } |
| 207 | if (nswdev == 0) { |
| 208 | dmmin = getw(nlst[X_DMMIN].n_value); |
| 209 | dmmax = getw(nlst[X_DMMAX].n_value); |
| 210 | dmtext = getw(nlst[X_DMTEXT].n_value); |
| 211 | nswdev = getw(nlst[X_NSWDEV].n_value); |
| 212 | if (nswdev > MAXSWAPDEV) |
| 213 | nswdev = MAXSWAPDEV; |
| 214 | swdevt = (struct swdevt *)calloc(nswdev, sizeof (*swdevt)); |
| 215 | klseek(kmem, nlst[X_SWDEVT].n_value, L_SET); |
| 216 | read(kmem, swdevt, nswdev * sizeof (struct swdevt)); |
| 217 | ntext = getw(nlst[X_NTEXT].n_value); |
| 218 | textp = getw(nlst[X_TEXT].n_value); |
| 219 | } |
| 220 | if (procp == NULL) { |
| 221 | procp = getw(nlst[X_PROC].n_value); |
| 222 | nproc = getw(nlst[X_NPROC].n_value); |
| 223 | } |
| 224 | if (xtext == NULL) |
| 225 | xtext = (struct text *)calloc(ntext, sizeof (struct text)); |
| 226 | if (kprocp == NULL) |
| 227 | kprocp = (struct proc *)calloc(nproc, sizeof (struct proc)); |
| 228 | if (usrpt != NULL) |
| 229 | return(1); |
| 230 | usrpt = (struct pte *)nlst[X_USRPT].n_value; |
| 231 | Usrptma = (struct pte *)nlst[X_USRPTMAP].n_value; |
| 232 | if (pt == NULL) |
| 233 | pt = (struct p_times *)malloc(nproc * sizeof (struct p_times)); |
| 234 | return(1); |
| 235 | } |
| 236 | |
| 237 | fetchswap() |
| 238 | { |
| 239 | |
| 240 | if (nlst[X_PROC].n_type == 0) |
| 241 | return; |
| 242 | if (kprocp == NULL) { |
| 243 | kprocp = (struct proc *)malloc(sizeof (*kprocp) * nproc); |
| 244 | if (kprocp == NULL) |
| 245 | return; |
| 246 | } |
| 247 | lseek(kmem, procp, L_SET); |
| 248 | if (read(kmem, kprocp, sizeof (struct proc) * nproc) != |
| 249 | sizeof (struct proc) * nproc) { |
| 250 | error("couldn't read proc table"); |
| 251 | return; |
| 252 | } |
| 253 | if (xtext == NULL) { |
| 254 | xtext = (struct text *)calloc(ntext, sizeof (struct text)); |
| 255 | if (xtext == NULL) |
| 256 | return; |
| 257 | } |
| 258 | lseek(kmem, textp, L_SET); |
| 259 | if (read(kmem, xtext, ntext * sizeof (struct text)) != |
| 260 | sizeof (struct text) * ntext) |
| 261 | error("couldn't read text table"); |
| 262 | } |
| 263 | |
| 264 | #ifdef vax |
| 265 | char *devnames[] = |
| 266 | { "hp", "ht", "up", "rk", "sw", "tm", "ts", "mt", "tu", "ra", "ut", |
| 267 | "rb", "rx", "rl" }; |
| 268 | #endif |
| 269 | #ifdef tahoe |
| 270 | char *devnames[] = { "ud", "vd", "xp", "cy", "sw" }; |
| 271 | #endif |
| 272 | |
| 273 | labelswap() |
| 274 | { |
| 275 | register int row; |
| 276 | |
| 277 | if (nswdev == 0) { |
| 278 | error("Don't know how many swap devices.\n"); |
| 279 | return; |
| 280 | } |
| 281 | colwidth = (COLS - OFFSET - (nswdev - 1)) / nswdev; |
| 282 | row = swaplabel(0, dmtext, 1); |
| 283 | (void) swaplabel(row, dmmax, 0); |
| 284 | } |
| 285 | |
| 286 | swaplabel(row, dmbound, donames) |
| 287 | register int row; |
| 288 | int dmbound, donames; |
| 289 | { |
| 290 | register int i, j; |
| 291 | |
| 292 | for (i = 0; i < nswdev; i++) { |
| 293 | if (donames) |
| 294 | mvwprintw(wnd, |
| 295 | row, OFFSET + i*(1 + colwidth) + (colwidth - 3)/2, |
| 296 | "%s%d", devnames[major(swdevt[i].sw_dev)], |
| 297 | minor(swdevt[i].sw_dev) >> 3); |
| 298 | for (j = 0; j + 5 < colwidth; j += 5) |
| 299 | mvwprintw(wnd, row + donames, |
| 300 | OFFSET + i*(1 + colwidth) + j, "/%-2d ", j); |
| 301 | } |
| 302 | row += 1 + donames; |
| 303 | for (j = 0, i = dmmin; i <= dmbound; i *= 2, j++, row++) { |
| 304 | int k; |
| 305 | |
| 306 | mvwprintw(wnd, row, 0, "%4d|", i); |
| 307 | for (k = 1; k < nswdev; k++) |
| 308 | mvwaddch(wnd, row, OFFSET + k*(1 + colwidth) - 1, '|'); |
| 309 | } |
| 310 | return (row); |
| 311 | } |