projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| d66f1fc6 | 1 | static char *sccsid = "@(#)iostat.c 4.10 (Berkeley) 83/10/19"; |
| be974f30 BJ |
2 | /* |
| 3 | * iostat | |
| 4 | */ | |
| 700789be | 5 | #include <stdio.h> |
| be974f30 | 6 | #include <nlist.h> |
| 700789be MT |
7 | #include <sys/types.h> |
| 8 | #include <sys/buf.h> | |
| 41b4a915 BS |
9 | #include <sys/dk.h> |
| 10 | #ifdef vax | |
| 4e7e20a4 KM |
11 | #include <vaxuba/ubavar.h> |
| 12 | #include <vaxmba/mbavar.h> | |
| 41b4a915 BS |
13 | #endif |
| 14 | #ifdef sun | |
| 15 | #include <sundev/mbvar.h> | |
| 16 | #endif | |
| be974f30 BJ |
17 | |
| 18 | struct nlist nl[] = { | |
| 19 | { "_dk_busy" }, | |
| 20 | #define X_DK_BUSY 0 | |
| 21 | { "_dk_time" }, | |
| 22 | #define X_DK_TIME 1 | |
| 23 | { "_dk_xfer" }, | |
| 24 | #define X_DK_XFER 2 | |
| 25 | { "_dk_wds" }, | |
| 26 | #define X_DK_WDS 3 | |
| 27 | { "_tk_nin" }, | |
| 28 | #define X_TK_NIN 4 | |
| 29 | { "_tk_nout" }, | |
| 30 | #define X_TK_NOUT 5 | |
| 31 | { "_dk_seek" }, | |
| 32 | #define X_DK_SEEK 6 | |
| 33 | { "_cp_time" }, | |
| 34 | #define X_CP_TIME 7 | |
| 35 | { "_dk_mspw" }, | |
| 36 | #define X_DK_MSPW 8 | |
| 22f209a2 SL |
37 | { "_hz" }, |
| 38 | #define X_HZ 9 | |
| d66f1fc6 SL |
39 | { "_phz" }, |
| 40 | #define X_PHZ 10 | |
| 41b4a915 | 41 | #ifdef vax |
| 700789be | 42 | { "_mbdinit" }, |
| d66f1fc6 | 43 | #define X_MBDINIT 11 |
| 700789be | 44 | { "_ubdinit" }, |
| d66f1fc6 | 45 | #define X_UBDINIT 12 |
| 41b4a915 | 46 | #endif |
| 41b4a915 BS |
47 | #ifdef sun |
| 48 | { "_mbdinit" }, | |
| d66f1fc6 | 49 | #define X_MBDINIT 11 |
| 41b4a915 | 50 | #endif |
| be974f30 BJ |
51 | { 0 }, |
| 52 | }; | |
| 700789be MT |
53 | |
| 54 | char dr_name[DK_NDRIVE][10]; | |
| 55 | ||
| be974f30 BJ |
56 | struct |
| 57 | { | |
| 58 | int dk_busy; | |
| 59 | long cp_time[CPUSTATES]; | |
| 60 | long dk_time[DK_NDRIVE]; | |
| 61 | long dk_wds[DK_NDRIVE]; | |
| 62 | long dk_seek[DK_NDRIVE]; | |
| 63 | long dk_xfer[DK_NDRIVE]; | |
| 64 | float dk_mspw[DK_NDRIVE]; | |
| 65 | long tk_nin; | |
| 66 | long tk_nout; | |
| 67 | } s, s1; | |
| 68 | ||
| 69 | int mf; | |
| 22f209a2 | 70 | int hz; |
| d66f1fc6 | 71 | int phz; |
| be974f30 BJ |
72 | double etime; |
| 73 | ||
| 74 | main(argc, argv) | |
| 75 | char *argv[]; | |
| 76 | { | |
| 77 | extern char *ctime(); | |
| 78 | register i; | |
| 79 | int iter; | |
| 80 | double f1, f2; | |
| 81 | long t; | |
| 8b6704d4 | 82 | int tohdr = 1; |
| be974f30 BJ |
83 | |
| 84 | nlist("/vmunix", nl); | |
| 85 | if(nl[X_DK_BUSY].n_type == 0) { | |
| 86 | printf("dk_busy not found in /vmunix namelist\n"); | |
| 87 | exit(1); | |
| 88 | } | |
| 89 | mf = open("/dev/kmem", 0); | |
| 90 | if(mf < 0) { | |
| 91 | printf("cannot open /dev/kmem\n"); | |
| 92 | exit(1); | |
| 93 | } | |
| 94 | iter = 0; | |
| 95 | while (argc>1&&argv[1][0]=='-') { | |
| 96 | argc--; | |
| 97 | argv++; | |
| 98 | } | |
| 99 | lseek(mf, (long)nl[X_DK_MSPW].n_value, 0); | |
| 100 | read(mf, s.dk_mspw, sizeof s.dk_mspw); | |
| 700789be MT |
101 | for (i = 0; i < DK_NDRIVE; i++) |
| 102 | sprintf(dr_name[i], "dk%d", i); | |
| 103 | read_names(); | |
| be974f30 BJ |
104 | if(argc > 2) |
| 105 | iter = atoi(argv[2]); | |
| be974f30 | 106 | loop: |
| 8b6704d4 | 107 | if (--tohdr == 0) { |
| 700789be | 108 | printf(" tty"); |
| 8b6704d4 BJ |
109 | for (i = 0; i < DK_NDRIVE; i++) |
| 110 | if (s.dk_mspw[i] != 0.0) | |
| 700789be MT |
111 | printf(" %3.3s ", dr_name[i]); |
| 112 | printf(" cpu\n"); | |
| 8b6704d4 BJ |
113 | printf(" tin tout"); |
| 114 | for (i = 0; i < DK_NDRIVE; i++) | |
| 115 | if (s.dk_mspw[i] != 0.0) | |
| 4e7e20a4 | 116 | printf(" bps tps msps "); |
| 8b6704d4 BJ |
117 | printf(" us ni sy id\n"); |
| 118 | tohdr = 19; | |
| 119 | } | |
| be974f30 BJ |
120 | lseek(mf, (long)nl[X_DK_BUSY].n_value, 0); |
| 121 | read(mf, &s.dk_busy, sizeof s.dk_busy); | |
| 122 | lseek(mf, (long)nl[X_DK_TIME].n_value, 0); | |
| 123 | read(mf, s.dk_time, sizeof s.dk_time); | |
| 124 | lseek(mf, (long)nl[X_DK_XFER].n_value, 0); | |
| 125 | read(mf, s.dk_xfer, sizeof s.dk_xfer); | |
| 126 | lseek(mf, (long)nl[X_DK_WDS].n_value, 0); | |
| 127 | read(mf, s.dk_wds, sizeof s.dk_wds); | |
| 128 | lseek(mf, (long)nl[X_TK_NIN].n_value, 0); | |
| 129 | read(mf, &s.tk_nin, sizeof s.tk_nin); | |
| 130 | lseek(mf, (long)nl[X_TK_NOUT].n_value, 0); | |
| 131 | read(mf, &s.tk_nout, sizeof s.tk_nout); | |
| 132 | lseek(mf, (long)nl[X_DK_SEEK].n_value, 0); | |
| 133 | read(mf, s.dk_seek, sizeof s.dk_seek); | |
| 134 | lseek(mf, (long)nl[X_CP_TIME].n_value, 0); | |
| 135 | read(mf, s.cp_time, sizeof s.cp_time); | |
| 136 | lseek(mf, (long)nl[X_DK_MSPW].n_value, 0); | |
| 137 | read(mf, s.dk_mspw, sizeof s.dk_mspw); | |
| 22f209a2 SL |
138 | lseek(mf, (long)nl[X_HZ].n_value, 0); |
| 139 | read(mf, &hz, sizeof hz); | |
| d66f1fc6 SL |
140 | lseek(mf, (long)nl[X_PHZ].n_value, 0); |
| 141 | read(mf, &phz, sizeof phz); | |
| 142 | if (phz) | |
| 143 | hz = phz; | |
| be974f30 BJ |
144 | for (i = 0; i < DK_NDRIVE; i++) { |
| 145 | #define X(fld) t = s.fld[i]; s.fld[i] -= s1.fld[i]; s1.fld[i] = t | |
| 146 | X(dk_xfer); X(dk_seek); X(dk_wds); X(dk_time); | |
| 147 | } | |
| 148 | t = s.tk_nin; s.tk_nin -= s1.tk_nin; s1.tk_nin = t; | |
| 149 | t = s.tk_nout; s.tk_nout -= s1.tk_nout; s1.tk_nout = t; | |
| 150 | etime = 0; | |
| 151 | for(i=0; i<CPUSTATES; i++) { | |
| 152 | X(cp_time); | |
| 153 | etime += s.cp_time[i]; | |
| 154 | } | |
| 155 | if (etime == 0.0) | |
| 156 | etime = 1.0; | |
| 22f209a2 | 157 | etime /= (float) hz; |
| be974f30 BJ |
158 | printf("%4.0f%5.0f", s.tk_nin/etime, s.tk_nout/etime); |
| 159 | for (i=0; i<DK_NDRIVE; i++) | |
| 160 | if (s.dk_mspw[i] != 0.0) | |
| 161 | stats(i); | |
| 162 | for (i=0; i<CPUSTATES; i++) | |
| 163 | stat1(i); | |
| 164 | printf("\n"); | |
| 165 | contin: | |
| 166 | --iter; | |
| 167 | if(iter) | |
| 168 | if(argc > 1) { | |
| 169 | sleep(atoi(argv[1])); | |
| 170 | goto loop; | |
| 171 | } | |
| 172 | } | |
| 173 | ||
| 174 | stats(dn) | |
| 175 | { | |
| 176 | register i; | |
| 177 | double atime, words, xtime, itime; | |
| 178 | ||
| 179 | if (s.dk_mspw[dn] == 0.0) { | |
| 180 | printf("%4.0f%4.0f%5.1f ", 0.0, 0.0, 0.0); | |
| 181 | return; | |
| 182 | } | |
| 183 | atime = s.dk_time[dn]; | |
| 22f209a2 | 184 | atime /= (float) hz; |
| be974f30 BJ |
185 | words = s.dk_wds[dn]*32.0; /* number of words transferred */ |
| 186 | xtime = s.dk_mspw[dn]*words; /* transfer time */ | |
| 187 | itime = atime - xtime; /* time not transferring */ | |
| 188 | /* | |
| 189 | printf("\ndn %d, words %8.2f, atime %6.2f, xtime %6.2f, itime %6.2f\n", | |
| 190 | dn, words, atime, xtime, itime); | |
| 191 | */ | |
| 192 | if (xtime < 0) | |
| 193 | itime += xtime, xtime = 0; | |
| 194 | if (itime < 0) | |
| 195 | xtime += itime, itime = 0; | |
| 4e7e20a4 | 196 | printf("%4.0f", words/512/etime); |
| be974f30 BJ |
197 | printf("%4.0f", s.dk_xfer[dn]/etime); |
| 198 | printf("%5.1f ", | |
| 199 | s.dk_seek[dn] ? itime*1000./s.dk_seek[dn] : 0.0); | |
| 200 | /* | |
| 201 | printf("%4.1f", | |
| 202 | s.dk_xfer[dn] ? xtime*1000./s.dk_xfer[dn] : 0.0); | |
| 203 | */ | |
| 204 | } | |
| 205 | ||
| 206 | stat1(o) | |
| 207 | { | |
| 208 | register i; | |
| 209 | double time; | |
| 210 | ||
| 211 | time = 0; | |
| 212 | for(i=0; i<CPUSTATES; i++) | |
| 213 | time += s.cp_time[i]; | |
| 214 | if (time == 0.0) | |
| 215 | time = 1.0; | |
| 216 | printf("%3.0f", 100*s.cp_time[o]/time); | |
| 217 | } | |
| 700789be | 218 | |
| 700789be | 219 | #define steal(where, var) lseek(mf, where, 0); read(mf, &var, sizeof var); |
| 41b4a915 BS |
220 | |
| 221 | #ifdef vax | |
| 700789be MT |
222 | read_names() |
| 223 | { | |
| 224 | struct mba_device mdev; | |
| 225 | register struct mba_device *mp; | |
| 226 | struct mba_driver mdrv; | |
| 227 | short two_char; | |
| 228 | char *cp = (char *) &two_char; | |
| 229 | struct uba_device udev, *up; | |
| 230 | struct uba_driver udrv; | |
| 231 | ||
| 232 | mp = (struct mba_device *) nl[X_MBDINIT].n_value; | |
| 233 | up = (struct uba_device *) nl[X_UBDINIT].n_value; | |
| 0e22e6c5 | 234 | if (up == 0) |
| 700789be MT |
235 | { |
| 236 | fprintf(stderr, "iostat: Disk init info not in namelist\n"); | |
| 237 | exit(1); | |
| 238 | } | |
| 41b4a915 | 239 | if (mp) for (;;) { |
| 700789be MT |
240 | steal(mp++, mdev); |
| 241 | if (mdev.mi_driver == 0) | |
| 242 | break; | |
| 243 | if (mdev.mi_dk < 0 || mdev.mi_alive == 0) | |
| 244 | continue; | |
| 245 | steal(mdev.mi_driver, mdrv); | |
| 246 | steal(mdrv.md_dname, two_char); | |
| 247 | sprintf(dr_name[mdev.mi_dk], "%c%c%d", cp[0], cp[1], mdev.mi_unit); | |
| 248 | } | |
| 41b4a915 | 249 | if (up) for (;;) { |
| 700789be MT |
250 | steal(up++, udev); |
| 251 | if (udev.ui_driver == 0) | |
| 252 | break; | |
| 253 | if (udev.ui_dk < 0 || udev.ui_alive == 0) | |
| 254 | continue; | |
| 255 | steal(udev.ui_driver, udrv); | |
| 256 | steal(udrv.ud_dname, two_char); | |
| 257 | sprintf(dr_name[udev.ui_dk], "%c%c%d", cp[0], cp[1], udev.ui_unit); | |
| 258 | } | |
| 259 | } | |
| 41b4a915 BS |
260 | #endif |
| 261 | ||
| 262 | #ifdef sun | |
| 263 | read_names() | |
| 264 | { | |
| 265 | struct mb_device mdev; | |
| 266 | register struct mb_device *mp; | |
| 267 | struct mb_driver mdrv; | |
| 268 | short two_char; | |
| 269 | char *cp = (char *) &two_char; | |
| 270 | ||
| 271 | mp = (struct mb_device *) nl[X_MBDINIT].n_value; | |
| 272 | if (mp == 0) { | |
| 273 | fprintf(stderr, "iostat: Disk init info not in namelist\n"); | |
| 274 | exit(1); | |
| 275 | } | |
| 276 | for (;;) { | |
| 277 | steal(mp++, mdev); | |
| 278 | if (mdev.md_driver == 0) | |
| 279 | break; | |
| 280 | if (mdev.md_dk < 0 || mdev.md_alive == 0) | |
| 281 | continue; | |
| 282 | steal(mdev.md_driver, mdrv); | |
| 283 | steal(mdrv.mdr_dname, two_char); | |
| 284 | sprintf(dr_name[mdev.md_dk], "%c%c%d", cp[0], cp[1], mdev.md_unit); | |
| 285 | } | |
| 286 | } | |
| 287 | #endif |