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 (c) 2014 Gary Mills 23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #include <sys/types.h> 28 #include <sys/ddi.h> 29 #include <sys/pte.h> 30 #include <sys/cpr.h> 31 32 /* 33 * Support routines for CPR statistic collection 34 */ 35 struct cpr_event cpr_events_buf[CPR_E_MAX_EVENTNUM]; 36 37 extern struct cpr_terminator cpr_term; 38 39 struct cpr_event *cpr_find_event(char *name, int new); 40 41 #define CPR_DEFAULT_PROMTIME 30 42 #define CE_START_MASK 0x8000000 43 44 /* 45 * Use ctp to specify another time point instead of the current time; 46 * Otherwise, ctp is NULL. 47 */ 48 void 49 cpr_stat_event_start(char *name, cpr_time_t *ctp) 50 { 51 struct cpr_event *cep; 52 cpr_time_t tv; 53 54 if (ctp) 55 tv = *ctp; 56 else { 57 /* need relative time even when hrestime is stoped */ 58 cpr_tod_get(&tv); 59 } 60 61 if ((cep = cpr_find_event(name, 1)) == NULL) { 62 cpr_err(CE_WARN, "cpr_stat: run out of event buffers"); 63 return; 64 } 65 /* 66 * disallow entering start twice without calling end first 67 */ 68 if (cep->ce_ntests & CE_START_MASK) 69 return; 70 71 cep->ce_ntests |= CE_START_MASK; 72 cep->ce_sec.stime = cep->ce_sec.etime = tv.tv_sec; 73 cep->ce_sec.ltime = 0; 74 cep->ce_msec.stime = cep->ce_msec.etime = tv.tv_nsec / 100000000; 75 cep->ce_msec.ltime = 0; 76 } 77 78 void 79 cpr_stat_event_end(char *name, cpr_time_t *ctp) 80 { 81 struct cpr_stat *cp = STAT; 82 struct cpr_event *cep; 83 cpr_time_t tv; 84 85 if (ctp) 86 tv = *ctp; 87 else 88 cpr_tod_get(&tv); 89 90 if ((cep = cpr_find_event(name, 0)) == NULL) { 91 #ifdef CPR_STAT 92 prom_printf("cpr_stat: event \"%s\" is not monitored\n", name); 93 #endif /* CPR_STAT */ 94 return; 95 } 96 97 /* 98 * diallow entering end twice without calling end first 99 */ 100 if (!(cep->ce_ntests & CE_START_MASK)) 101 return; 102 103 cep->ce_ntests &= ~CE_START_MASK; 104 cep->ce_ntests++; 105 106 /* 107 * calculate seconds 108 */ 109 cep->ce_sec.etime = tv.tv_sec; 110 cep->ce_sec.ltime = cep->ce_sec.etime - cep->ce_sec.stime; 111 cep->ce_sec.mtime = ((cep->ce_sec.mtime * (cep->ce_ntests - 1)) + 112 cep->ce_sec.ltime) / cep->ce_ntests; 113 114 /* 115 * calculate 100*milliseconds 116 */ 117 if (cep->ce_sec.ltime == 0) { 118 cep->ce_msec.etime = tv.tv_nsec / 100000000; 119 cep->ce_msec.ltime = 120 (cep->ce_msec.etime <= cep->ce_msec.stime) ? 0 : 121 (cep->ce_msec.etime - cep->ce_msec.stime); 122 cep->ce_msec.mtime = 123 ((cep->ce_msec.mtime * (cep->ce_ntests - 1)) + 124 cep->ce_msec.ltime) / cep->ce_ntests; 125 } 126 cp->cs_ntests = cep->ce_ntests & ~CE_START_MASK; 127 } 128 129 void 130 cpr_stat_cleanup() 131 { 132 struct cpr_stat *cp = STAT; 133 struct cpr_event *cep; 134 135 for (cep = cp->cs_event_head; cep; cep = cep->ce_next) { 136 if ((cep->ce_ntests & CE_START_MASK) && 137 strcmp(cep->ce_name, "POST CPR DELAY") != NULL) { 138 cpr_stat_event_end(cep->ce_name, 0); 139 cep->ce_ntests &= ~CE_START_MASK; 140 } 141 } 142 } 143 144 void 145 cpr_stat_init() 146 { 147 STAT->cs_real_statefsz = 0; 148 STAT->cs_dumped_statefsz = 0; 149 } 150 151 void 152 cpr_stat_record_events() 153 { 154 if (cpr_term.real_statef_size) { 155 int cur_comprate; 156 157 STAT->cs_real_statefsz = cpr_term.real_statef_size; 158 cur_comprate = ((longlong_t)((longlong_t) 159 STAT->cs_nocomp_statefsz*100)/ 160 STAT->cs_real_statefsz); 161 if (STAT->cs_min_comprate == 0 || 162 (STAT->cs_min_comprate > cur_comprate)) 163 STAT->cs_min_comprate = cur_comprate; 164 } 165 } 166 167 void 168 cpr_stat_event_print() 169 { 170 struct cpr_stat *cp = STAT; 171 struct cpr_event *cep; 172 char *fmt, *tabs; 173 int len; 174 175 printf("\n"); 176 printf("---------------\t\tCPR PERFORMANCE SUMMARY\t\t-------------\n"); 177 printf("Events\t\t\tRepeat[times]\tMeantime[sec]\tLastEvnt[sec]\n"); 178 179 for (cep = cp->cs_event_head; cep; cep = cep->ce_next) { 180 len = strlen(cep->ce_name); 181 if (len < 8) 182 tabs = "\t\t\t"; 183 else if (len < 16) 184 tabs = "\t\t"; 185 else 186 tabs = "\t"; 187 if (strcmp(cep->ce_name, "Suspend Total") == NULL || 188 strcmp(cep->ce_name, "Resume Total") == NULL || 189 strcmp(cep->ce_name, "POST CPR DELAY") == NULL || 190 strcmp(cep->ce_name, "WHOLE CYCLE") == NULL) 191 fmt = "%s%s%d\t\t%3d.%1d\t\t%3d.%1d\n"; 192 else 193 fmt = "%s%s%d\t\t %3d.%1d\t\t %3d.%1d\n"; 194 printf(fmt, cep->ce_name, tabs, (int)cep->ce_ntests, 195 (int)cep->ce_sec.mtime, (int)(cep->ce_msec.mtime / 10), 196 (int)cep->ce_sec.ltime, (int)(cep->ce_msec.ltime / 10)); 197 } 198 delay(drv_usectohz(10000)); /* otherwise the next line goes to prom */ 199 /* 200 * print the rest of the stat data 201 */ 202 printf("\nMISCELLANEOUS STATISTICS INFORMATION (units in KBytes)\n\n"); 203 printf("\tUser Pages w/o Swapspace:\t%8lu (%lu pages)\n", 204 cp->cs_nosw_pages*PAGESIZE/1000, cp->cs_nosw_pages); 205 printf("\tTotal Upages Saved to Statefile:%8d (%d pages)\n", 206 cp->cs_upage2statef*PAGESIZE/1000, cp->cs_upage2statef); 207 if (cp->cs_mclustsz) 208 printf("\tAverage Cluster Size:\t\t%8d (%d.%1d%1d pages)\n\n", 209 cp->cs_mclustsz/1000, cp->cs_mclustsz/PAGESIZE, 210 ((cp->cs_mclustsz%PAGESIZE)*10/PAGESIZE), 211 ((cp->cs_mclustsz%PAGESIZE)*100/PAGESIZE)%10); 212 printf("\tKernel Memory Size:\t\t%8lu\n", cp->cs_nocomp_statefsz/1000); 213 printf("\tEstimated Statefile Size:\t%8lu\n", cp->cs_est_statefsz/1000); 214 printf("\tActual Statefile Size:\t\t%8lu\n", cp->cs_real_statefsz/1000); 215 if (cp->cs_real_statefsz) { 216 int min = cp->cs_min_comprate; 217 int new = ((longlong_t)((longlong_t) 218 cp->cs_nocomp_statefsz*100)/cp->cs_real_statefsz); 219 220 printf("\tCompression Ratio:\t\t%5d.%1d%1d (worst %d.%1d%1d)\n", 221 new/100, (new%100)/10, new%10, 222 min/100, (min%100)/10, min%10); 223 } 224 } 225 226 struct cpr_event * 227 cpr_find_event(char *name, int new) 228 { 229 struct cpr_stat *cp = STAT; 230 struct cpr_event *cep; 231 int i; 232 233 for (cep = cp->cs_event_head; cep; cep = cep->ce_next) { 234 if (strcmp(name, cep->ce_name) == NULL) 235 return (cep); 236 } 237 238 /* if not begin not end either */ 239 if (new == NULL) 240 return (NULL); 241 242 for (i = 0; i < CPR_E_MAX_EVENTNUM; i++) { 243 for (cep = cp->cs_event_head; cep; cep = cep->ce_next) { 244 if (&cpr_events_buf[i] == cep) 245 break; 246 } 247 if (!cep) { 248 struct cpr_event *new_cep; 249 250 new_cep = &cpr_events_buf[i]; 251 (void) strcpy(new_cep->ce_name, name); 252 253 if (!cp->cs_event_head) { 254 /* The 1st one */ 255 cp->cs_event_head = new_cep; 256 } else { 257 /* insert to tail */ 258 new_cep->ce_next = cp->cs_event_tail->ce_next; 259 cp->cs_event_tail->ce_next = new_cep; 260 } 261 cp->cs_event_tail = new_cep; 262 return (new_cep); 263 } 264 } 265 return (NULL); 266 } 267 268 static time_t min_promtime; 269 270 void 271 cpr_convert_promtime(cpr_time_t *pop) 272 { 273 time_t pwroff_time, cb_time; 274 cpr_time_t *startp, *shdnp, *endp; 275 276 startp = &cpr_term.tm_cprboot_start; 277 shdnp = &cpr_term.tm_shutdown; 278 endp = &cpr_term.tm_cprboot_end; 279 280 cb_time = endp->tv_sec - startp->tv_sec; 281 282 cpr_tod_get(endp); 283 startp->tv_sec = endp->tv_sec - cb_time; 284 285 if (min_promtime == 0 || 286 min_promtime > (endp->tv_sec - shdnp->tv_sec - cb_time)) 287 min_promtime = endp->tv_sec - shdnp->tv_sec - cb_time; 288 289 if (min_promtime > CPR_DEFAULT_PROMTIME) 290 min_promtime = CPR_DEFAULT_PROMTIME; 291 292 pwroff_time = startp->tv_sec - shdnp->tv_sec - min_promtime; 293 294 wholecycle_tv.tv_sec += pwroff_time; /* offset the poweroff time */ 295 296 pop->tv_sec = startp->tv_sec - min_promtime; 297 } 298