1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include <sys/types.h> 29 #include <sys/ddi.h> 30 #include <sys/pte.h> 31 #include <sys/cpr.h> 32 33 /* 34 * Support routines for CPR statistic collection 35 */ 36 struct cpr_event cpr_events_buf[CPR_E_MAX_EVENTNUM]; 37 38 extern struct cpr_terminator cpr_term; 39 40 struct cpr_event *cpr_find_event(char *name, int new); 41 42 #define CPR_DEFAULT_PROMTIME 30 43 #define CE_START_MASK 0x8000000 44 45 /* 46 * Use ctp to specify another time point instead of the current time; 47 * Otherwise, ctp is NULL. 48 */ 49 void 50 cpr_stat_event_start(char *name, cpr_time_t *ctp) 51 { 52 struct cpr_event *cep; 53 cpr_time_t tv; 54 55 if (ctp) 56 tv = *ctp; 57 else { 58 /* need relative time even when hrestime is stoped */ 59 cpr_tod_get(&tv); 60 } 61 62 if ((cep = cpr_find_event(name, 1)) == NULL) { 63 cpr_err(CE_WARN, "cpr_stat: run out of event buffers"); 64 return; 65 } 66 /* 67 * disallow entering start twice without calling end first 68 */ 69 if (cep->ce_ntests & CE_START_MASK) 70 return; 71 72 cep->ce_ntests |= CE_START_MASK; 73 cep->ce_sec.stime = cep->ce_sec.etime = tv.tv_sec; 74 cep->ce_sec.ltime = cep->ce_sec.ltime = 0; 75 cep->ce_msec.stime = cep->ce_msec.etime = tv.tv_nsec / 100000000; 76 cep->ce_msec.ltime = cep->ce_msec.ltime = 0; 77 } 78 79 void 80 cpr_stat_event_end(char *name, cpr_time_t *ctp) 81 { 82 struct cpr_stat *cp = STAT; 83 struct cpr_event *cep; 84 cpr_time_t tv; 85 86 if (ctp) 87 tv = *ctp; 88 else 89 cpr_tod_get(&tv); 90 91 if ((cep = cpr_find_event(name, 0)) == NULL) { 92 #ifdef CPR_STAT 93 prom_printf("cpr_stat: event \"%s\" is not monitored\n", name); 94 #endif /* CPR_STAT */ 95 return; 96 } 97 98 /* 99 * diallow entering end twice without calling end first 100 */ 101 if (!(cep->ce_ntests & CE_START_MASK)) 102 return; 103 104 cep->ce_ntests &= ~CE_START_MASK; 105 cep->ce_ntests++; 106 107 /* 108 * calculate seconds 109 */ 110 cep->ce_sec.etime = tv.tv_sec; 111 cep->ce_sec.ltime = cep->ce_sec.etime - cep->ce_sec.stime; 112 cep->ce_sec.mtime = ((cep->ce_sec.mtime * (cep->ce_ntests - 1)) + 113 cep->ce_sec.ltime) / cep->ce_ntests; 114 115 /* 116 * calculate 100*milliseconds 117 */ 118 if (cep->ce_sec.ltime == 0) { 119 cep->ce_msec.etime = tv.tv_nsec / 100000000; 120 cep->ce_msec.ltime = 121 (cep->ce_msec.etime <= cep->ce_msec.stime) ? 0 : 122 (cep->ce_msec.etime - cep->ce_msec.stime); 123 cep->ce_msec.mtime = 124 ((cep->ce_msec.mtime * (cep->ce_ntests - 1)) + 125 cep->ce_msec.ltime) / cep->ce_ntests; 126 } 127 cp->cs_ntests = cep->ce_ntests & ~CE_START_MASK; 128 } 129 130 void 131 cpr_stat_cleanup() 132 { 133 struct cpr_stat *cp = STAT; 134 struct cpr_event *cep; 135 136 for (cep = cp->cs_event_head; cep; cep = cep->ce_next) { 137 if ((cep->ce_ntests & CE_START_MASK) && 138 strcmp(cep->ce_name, "POST CPR DELAY") != NULL) { 139 cpr_stat_event_end(cep->ce_name, 0); 140 cep->ce_ntests &= ~CE_START_MASK; 141 } 142 } 143 } 144 145 void 146 cpr_stat_init() 147 { 148 STAT->cs_real_statefsz = 0; 149 STAT->cs_dumped_statefsz = 0; 150 } 151 152 void 153 cpr_stat_record_events() 154 { 155 if (cpr_term.real_statef_size) { 156 int cur_comprate; 157 158 STAT->cs_real_statefsz = cpr_term.real_statef_size; 159 cur_comprate = ((longlong_t)((longlong_t) 160 STAT->cs_nocomp_statefsz*100)/ 161 STAT->cs_real_statefsz); 162 if (STAT->cs_min_comprate == 0 || 163 (STAT->cs_min_comprate > cur_comprate)) 164 STAT->cs_min_comprate = cur_comprate; 165 } 166 } 167 168 void 169 cpr_stat_event_print() 170 { 171 struct cpr_stat *cp = STAT; 172 struct cpr_event *cep; 173 char *fmt, *tabs; 174 int len; 175 176 printf("\n"); 177 printf("---------------\t\tCPR PERFORMANCE SUMMARY\t\t-------------\n"); 178 printf("Events\t\t\tRepeat[times]\tMeantime[sec]\tLastEvnt[sec]\n"); 179 180 for (cep = cp->cs_event_head; cep; cep = cep->ce_next) { 181 len = strlen(cep->ce_name); 182 if (len < 8) 183 tabs = "\t\t\t"; 184 else if (len < 16) 185 tabs = "\t\t"; 186 else 187 tabs = "\t"; 188 if (strcmp(cep->ce_name, "Suspend Total") == NULL || 189 strcmp(cep->ce_name, "Resume Total") == NULL || 190 strcmp(cep->ce_name, "POST CPR DELAY") == NULL || 191 strcmp(cep->ce_name, "WHOLE CYCLE") == NULL) 192 fmt = "%s%s%d\t\t%3d.%1d\t\t%3d.%1d\n"; 193 else 194 fmt = "%s%s%d\t\t %3d.%1d\t\t %3d.%1d\n"; 195 printf(fmt, cep->ce_name, tabs, (int)cep->ce_ntests, 196 (int)cep->ce_sec.mtime, (int)(cep->ce_msec.mtime / 10), 197 (int)cep->ce_sec.ltime, (int)(cep->ce_msec.ltime / 10)); 198 } 199 delay(drv_usectohz(10000)); /* otherwise the next line goes to prom */ 200 /* 201 * print the rest of the stat data 202 */ 203 printf("\nMISCELLANEOUS STATISTICS INFORMATION (units in KBytes)\n\n"); 204 printf("\tUser Pages w/o Swapspace:\t%8lu (%lu pages)\n", 205 cp->cs_nosw_pages*PAGESIZE/1000, cp->cs_nosw_pages); 206 printf("\tTotal Upages Saved to Statefile:%8d (%d pages)\n", 207 cp->cs_upage2statef*PAGESIZE/1000, cp->cs_upage2statef); 208 if (cp->cs_mclustsz) 209 printf("\tAverage Cluster Size:\t\t%8d (%d.%1d%1d pages)\n\n", 210 cp->cs_mclustsz/1000, cp->cs_mclustsz/PAGESIZE, 211 ((cp->cs_mclustsz%PAGESIZE)*10/PAGESIZE), 212 ((cp->cs_mclustsz%PAGESIZE)*100/PAGESIZE)%10); 213 printf("\tKernel Memory Size:\t\t%8lu\n", cp->cs_nocomp_statefsz/1000); 214 printf("\tEstimated Statefile Size:\t%8lu\n", cp->cs_est_statefsz/1000); 215 printf("\tActual Statefile Size:\t\t%8lu\n", cp->cs_real_statefsz/1000); 216 if (cp->cs_real_statefsz) { 217 int min = cp->cs_min_comprate; 218 int new = ((longlong_t)((longlong_t) 219 cp->cs_nocomp_statefsz*100)/cp->cs_real_statefsz); 220 221 printf("\tCompression Ratio:\t\t%5d.%1d%1d (worst %d.%1d%1d)\n", 222 new/100, (new%100)/10, new%10, 223 min/100, (min%100)/10, min%10); 224 } 225 } 226 227 struct cpr_event * 228 cpr_find_event(char *name, int new) 229 { 230 struct cpr_stat *cp = STAT; 231 struct cpr_event *cep; 232 int i; 233 234 for (cep = cp->cs_event_head; cep; cep = cep->ce_next) { 235 if (strcmp(name, cep->ce_name) == NULL) 236 return (cep); 237 } 238 239 /* if not begin not end either */ 240 if (new == NULL) 241 return (NULL); 242 243 for (i = 0; i < CPR_E_MAX_EVENTNUM; i++) { 244 for (cep = cp->cs_event_head; cep; cep = cep->ce_next) { 245 if (&cpr_events_buf[i] == cep) 246 break; 247 } 248 if (!cep) { 249 struct cpr_event *new_cep; 250 251 new_cep = &cpr_events_buf[i]; 252 (void) strcpy(new_cep->ce_name, name); 253 254 if (!cp->cs_event_head) { 255 /* The 1st one */ 256 cp->cs_event_head = new_cep; 257 } else { 258 /* insert to tail */ 259 new_cep->ce_next = cp->cs_event_tail->ce_next; 260 cp->cs_event_tail->ce_next = new_cep; 261 } 262 cp->cs_event_tail = new_cep; 263 return (new_cep); 264 } 265 } 266 return (NULL); 267 } 268 269 static time_t min_promtime; 270 271 void 272 cpr_convert_promtime(cpr_time_t *pop) 273 { 274 time_t pwroff_time, cb_time; 275 cpr_time_t *startp, *shdnp, *endp; 276 277 startp = &cpr_term.tm_cprboot_start; 278 shdnp = &cpr_term.tm_shutdown; 279 endp = &cpr_term.tm_cprboot_end; 280 281 cb_time = endp->tv_sec - startp->tv_sec; 282 283 cpr_tod_get(endp); 284 startp->tv_sec = endp->tv_sec - cb_time; 285 286 if (min_promtime == 0 || 287 min_promtime > (endp->tv_sec - shdnp->tv_sec - cb_time)) 288 min_promtime = endp->tv_sec - shdnp->tv_sec - cb_time; 289 290 if (min_promtime > CPR_DEFAULT_PROMTIME) 291 min_promtime = CPR_DEFAULT_PROMTIME; 292 293 pwroff_time = startp->tv_sec - shdnp->tv_sec - min_promtime; 294 295 wholecycle_tv.tv_sec += pwroff_time; /* offset the poweroff time */ 296 297 pop->tv_sec = startp->tv_sec - min_promtime; 298 } 299