1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <sys/types.h> 30*0Sstevel@tonic-gate #include <sys/stat.h> 31*0Sstevel@tonic-gate #include <stdlib.h> 32*0Sstevel@tonic-gate #include <fcntl.h> 33*0Sstevel@tonic-gate #include <errno.h> 34*0Sstevel@tonic-gate #include <stdio.h> 35*0Sstevel@tonic-gate #include <unistd.h> 36*0Sstevel@tonic-gate #include <string.h> 37*0Sstevel@tonic-gate #include <strings.h> 38*0Sstevel@tonic-gate #include <libintl.h> 39*0Sstevel@tonic-gate #include <locale.h> 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate #include "rcapd.h" 42*0Sstevel@tonic-gate #include "utils.h" 43*0Sstevel@tonic-gate #include "rcapd_stat.h" 44*0Sstevel@tonic-gate 45*0Sstevel@tonic-gate static char mode[RC_MODE_LEN]; 46*0Sstevel@tonic-gate static rcapd_stat_hdr_t hdr; 47*0Sstevel@tonic-gate static int global; 48*0Sstevel@tonic-gate static int unformatted; 49*0Sstevel@tonic-gate static time_t stat_mod = 0; 50*0Sstevel@tonic-gate 51*0Sstevel@tonic-gate typedef struct col { 52*0Sstevel@tonic-gate rcid_t col_id; 53*0Sstevel@tonic-gate char col_name[LC_NAME_LEN]; 54*0Sstevel@tonic-gate uint64_t col_nproc; 55*0Sstevel@tonic-gate uint64_t col_vmsize; 56*0Sstevel@tonic-gate uint64_t col_rsssize; 57*0Sstevel@tonic-gate uint64_t col_rsslimit; 58*0Sstevel@tonic-gate uint64_t col_paged_eff; 59*0Sstevel@tonic-gate uint64_t col_paged_eff_old; 60*0Sstevel@tonic-gate uint64_t col_paged_eff_avg; 61*0Sstevel@tonic-gate uint64_t col_paged_att; 62*0Sstevel@tonic-gate uint64_t col_paged_att_old; 63*0Sstevel@tonic-gate uint64_t col_paged_att_avg; 64*0Sstevel@tonic-gate uint64_t col_count; 65*0Sstevel@tonic-gate int col_fresh; 66*0Sstevel@tonic-gate struct col *col_next; 67*0Sstevel@tonic-gate struct col *col_prev; 68*0Sstevel@tonic-gate lcollection_stat_t col_src_stat; 69*0Sstevel@tonic-gate lcollection_stat_t col_old_stat; 70*0Sstevel@tonic-gate } col_t; 71*0Sstevel@tonic-gate 72*0Sstevel@tonic-gate static col_t *col_head; 73*0Sstevel@tonic-gate static int ncol; 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate static col_t * 76*0Sstevel@tonic-gate col_find(rcid_t id) 77*0Sstevel@tonic-gate { 78*0Sstevel@tonic-gate col_t *col; 79*0Sstevel@tonic-gate for (col = col_head; col != NULL; col = col->col_next) 80*0Sstevel@tonic-gate if (col->col_id == id) 81*0Sstevel@tonic-gate return (col); 82*0Sstevel@tonic-gate return (NULL); 83*0Sstevel@tonic-gate } 84*0Sstevel@tonic-gate 85*0Sstevel@tonic-gate static col_t * 86*0Sstevel@tonic-gate col_insert(rcid_t id) 87*0Sstevel@tonic-gate { 88*0Sstevel@tonic-gate col_t *new_col; 89*0Sstevel@tonic-gate 90*0Sstevel@tonic-gate new_col = malloc(sizeof (col_t)); 91*0Sstevel@tonic-gate if (new_col == NULL) { 92*0Sstevel@tonic-gate (void) fprintf(stderr, gettext("rcapstat: malloc() failed\n")); 93*0Sstevel@tonic-gate exit(E_ERROR); 94*0Sstevel@tonic-gate } 95*0Sstevel@tonic-gate (void) memset(new_col, 0, sizeof (col_t)); 96*0Sstevel@tonic-gate new_col->col_next = col_head; 97*0Sstevel@tonic-gate new_col->col_id = id; 98*0Sstevel@tonic-gate if (col_head != NULL) 99*0Sstevel@tonic-gate col_head->col_prev = new_col; 100*0Sstevel@tonic-gate col_head = new_col; 101*0Sstevel@tonic-gate ncol++; 102*0Sstevel@tonic-gate return (new_col); 103*0Sstevel@tonic-gate } 104*0Sstevel@tonic-gate 105*0Sstevel@tonic-gate static void 106*0Sstevel@tonic-gate col_remove(col_t *col) 107*0Sstevel@tonic-gate { 108*0Sstevel@tonic-gate if (col->col_prev != NULL) 109*0Sstevel@tonic-gate col->col_prev->col_next = col->col_next; 110*0Sstevel@tonic-gate if (col->col_next != NULL) 111*0Sstevel@tonic-gate col->col_next->col_prev = col->col_prev; 112*0Sstevel@tonic-gate if (col_head == col) 113*0Sstevel@tonic-gate col_head = col->col_next; 114*0Sstevel@tonic-gate ncol--; 115*0Sstevel@tonic-gate free(col); 116*0Sstevel@tonic-gate } 117*0Sstevel@tonic-gate 118*0Sstevel@tonic-gate static void 119*0Sstevel@tonic-gate usage() 120*0Sstevel@tonic-gate { 121*0Sstevel@tonic-gate (void) fprintf(stderr, 122*0Sstevel@tonic-gate gettext("usage: rcapstat [-g] [interval [count]]\n")); 123*0Sstevel@tonic-gate exit(E_USAGE); 124*0Sstevel@tonic-gate } 125*0Sstevel@tonic-gate 126*0Sstevel@tonic-gate static void 127*0Sstevel@tonic-gate format_size(char *str, uint64_t size, int length) 128*0Sstevel@tonic-gate { 129*0Sstevel@tonic-gate char tag = 'K'; 130*0Sstevel@tonic-gate if (size >= 10000) { 131*0Sstevel@tonic-gate size = (size + 512) / 1024; 132*0Sstevel@tonic-gate tag = 'M'; 133*0Sstevel@tonic-gate if (size >= 10000) { 134*0Sstevel@tonic-gate size = (size + 512) / 1024; 135*0Sstevel@tonic-gate tag = 'G'; 136*0Sstevel@tonic-gate } 137*0Sstevel@tonic-gate } 138*0Sstevel@tonic-gate (void) snprintf(str, length, "%4lld%c", size, tag); 139*0Sstevel@tonic-gate } 140*0Sstevel@tonic-gate 141*0Sstevel@tonic-gate static int 142*0Sstevel@tonic-gate read_stats() 143*0Sstevel@tonic-gate { 144*0Sstevel@tonic-gate int fd; 145*0Sstevel@tonic-gate int proc_fd; 146*0Sstevel@tonic-gate char procfile[20]; 147*0Sstevel@tonic-gate pid_t pid; 148*0Sstevel@tonic-gate col_t *col, *col_next; 149*0Sstevel@tonic-gate lcollection_report_t report; 150*0Sstevel@tonic-gate struct stat st; 151*0Sstevel@tonic-gate 152*0Sstevel@tonic-gate if ((fd = open(STAT_FILE_DEFAULT, O_RDONLY)) < 0) { 153*0Sstevel@tonic-gate warn(gettext("rcapd is not active\n")); 154*0Sstevel@tonic-gate return (E_ERROR); 155*0Sstevel@tonic-gate } 156*0Sstevel@tonic-gate 157*0Sstevel@tonic-gate if (fstat(fd, &st) == 0) 158*0Sstevel@tonic-gate stat_mod = st.st_mtime; 159*0Sstevel@tonic-gate 160*0Sstevel@tonic-gate if (read(fd, &hdr, sizeof (hdr)) != sizeof (hdr)) { 161*0Sstevel@tonic-gate (void) fprintf(stderr, 162*0Sstevel@tonic-gate gettext("rcapstat: can't read stat file header: %s\n"), 163*0Sstevel@tonic-gate strerror(errno)); 164*0Sstevel@tonic-gate (void) close(fd); 165*0Sstevel@tonic-gate return (E_ERROR); 166*0Sstevel@tonic-gate } 167*0Sstevel@tonic-gate 168*0Sstevel@tonic-gate /* 169*0Sstevel@tonic-gate * Check if rcapd is running 170*0Sstevel@tonic-gate */ 171*0Sstevel@tonic-gate pid = hdr.rs_pid; 172*0Sstevel@tonic-gate (void) snprintf(procfile, 20, "/proc/%ld/psinfo", pid); 173*0Sstevel@tonic-gate if ((proc_fd = open(procfile, O_RDONLY)) < 0) { 174*0Sstevel@tonic-gate warn(gettext("rcapd is not active\n")); 175*0Sstevel@tonic-gate (void) close(fd); 176*0Sstevel@tonic-gate return (E_ERROR); 177*0Sstevel@tonic-gate } 178*0Sstevel@tonic-gate (void) close(proc_fd); 179*0Sstevel@tonic-gate 180*0Sstevel@tonic-gate (void) strncpy(mode, hdr.rs_mode, RC_MODE_LEN); 181*0Sstevel@tonic-gate for (col = col_head; col != NULL; col = col->col_next) { 182*0Sstevel@tonic-gate col->col_fresh = 0; 183*0Sstevel@tonic-gate col->col_paged_eff = 0; 184*0Sstevel@tonic-gate col->col_paged_att = 0; 185*0Sstevel@tonic-gate } 186*0Sstevel@tonic-gate 187*0Sstevel@tonic-gate while (read(fd, &report, sizeof (report)) == sizeof (report)) { 188*0Sstevel@tonic-gate col = col_find(report.lcol_id); 189*0Sstevel@tonic-gate if (col == NULL) { 190*0Sstevel@tonic-gate col = col_insert(report.lcol_id); 191*0Sstevel@tonic-gate col->col_paged_eff_old = col->col_paged_eff = 192*0Sstevel@tonic-gate report.lcol_stat.lcols_pg_eff; 193*0Sstevel@tonic-gate col->col_paged_att_old = col->col_paged_att = 194*0Sstevel@tonic-gate report.lcol_stat.lcols_pg_att; 195*0Sstevel@tonic-gate col->col_count = 0; 196*0Sstevel@tonic-gate } 197*0Sstevel@tonic-gate (void) strncpy(col->col_name, report.lcol_name, LC_NAME_LEN); 198*0Sstevel@tonic-gate col->col_vmsize = report.lcol_image_size; 199*0Sstevel@tonic-gate col->col_rsssize = report.lcol_rss; 200*0Sstevel@tonic-gate col->col_rsslimit = report.lcol_rss_cap; 201*0Sstevel@tonic-gate col->col_fresh = 1; 202*0Sstevel@tonic-gate if (report.lcol_stat.lcols_pg_eff > col->col_paged_eff_old) { 203*0Sstevel@tonic-gate col->col_paged_eff = 204*0Sstevel@tonic-gate report.lcol_stat.lcols_pg_eff - 205*0Sstevel@tonic-gate col->col_paged_eff_old; 206*0Sstevel@tonic-gate if (report.lcol_stat.lcols_scan_count > col->col_count) 207*0Sstevel@tonic-gate col->col_paged_eff_avg = 208*0Sstevel@tonic-gate col->col_paged_eff / 209*0Sstevel@tonic-gate (report.lcol_stat.lcols_scan_count - 210*0Sstevel@tonic-gate col->col_count); 211*0Sstevel@tonic-gate } else { 212*0Sstevel@tonic-gate col->col_paged_eff_avg = 0; 213*0Sstevel@tonic-gate } 214*0Sstevel@tonic-gate if (report.lcol_stat.lcols_pg_att > col->col_paged_att_old) { 215*0Sstevel@tonic-gate col->col_paged_att = 216*0Sstevel@tonic-gate report.lcol_stat.lcols_pg_att - 217*0Sstevel@tonic-gate col->col_paged_att_old; 218*0Sstevel@tonic-gate if (report.lcol_stat.lcols_scan_count > col->col_count) 219*0Sstevel@tonic-gate col->col_paged_att_avg = 220*0Sstevel@tonic-gate col->col_paged_att / 221*0Sstevel@tonic-gate (report.lcol_stat.lcols_scan_count - 222*0Sstevel@tonic-gate col->col_count); 223*0Sstevel@tonic-gate } else { 224*0Sstevel@tonic-gate col->col_paged_att_avg = 0; 225*0Sstevel@tonic-gate } 226*0Sstevel@tonic-gate col->col_paged_eff_old = report.lcol_stat.lcols_pg_eff; 227*0Sstevel@tonic-gate col->col_paged_att_old = report.lcol_stat.lcols_pg_att; 228*0Sstevel@tonic-gate col->col_nproc = 229*0Sstevel@tonic-gate report.lcol_stat.lcols_proc_in - 230*0Sstevel@tonic-gate report.lcol_stat.lcols_proc_out; 231*0Sstevel@tonic-gate col->col_count = report.lcol_stat.lcols_scan_count; 232*0Sstevel@tonic-gate col->col_src_stat = report.lcol_stat; 233*0Sstevel@tonic-gate } 234*0Sstevel@tonic-gate 235*0Sstevel@tonic-gate /* 236*0Sstevel@tonic-gate * Remove stale data 237*0Sstevel@tonic-gate */ 238*0Sstevel@tonic-gate col = col_head; 239*0Sstevel@tonic-gate while (col != NULL) { 240*0Sstevel@tonic-gate col_next = col->col_next; 241*0Sstevel@tonic-gate if (col->col_fresh == 0) 242*0Sstevel@tonic-gate col_remove(col); 243*0Sstevel@tonic-gate col = col_next; 244*0Sstevel@tonic-gate } 245*0Sstevel@tonic-gate (void) close(fd); 246*0Sstevel@tonic-gate return (E_SUCCESS); 247*0Sstevel@tonic-gate } 248*0Sstevel@tonic-gate 249*0Sstevel@tonic-gate /* 250*0Sstevel@tonic-gate * Print each collection's interval statistics. 251*0Sstevel@tonic-gate */ 252*0Sstevel@tonic-gate /*ARGSUSED*/ 253*0Sstevel@tonic-gate static void 254*0Sstevel@tonic-gate print_unformatted_stats(void) 255*0Sstevel@tonic-gate { 256*0Sstevel@tonic-gate col_t *col; 257*0Sstevel@tonic-gate 258*0Sstevel@tonic-gate #define DELTA(field) \ 259*0Sstevel@tonic-gate (col->col_src_stat.field - col->col_old_stat.field) 260*0Sstevel@tonic-gate 261*0Sstevel@tonic-gate col = col_head; 262*0Sstevel@tonic-gate while (col != NULL) { 263*0Sstevel@tonic-gate if (bcmp(&col->col_src_stat, &col->col_old_stat, 264*0Sstevel@tonic-gate sizeof (col->col_src_stat)) == 0) { 265*0Sstevel@tonic-gate col = col->col_next; 266*0Sstevel@tonic-gate continue; 267*0Sstevel@tonic-gate } 268*0Sstevel@tonic-gate (void) printf("%s %s status: succeeded/attempted (k): " 269*0Sstevel@tonic-gate "%llu/%llu, ineffective/scans/unenforced/samplings: " 270*0Sstevel@tonic-gate "%llu/%llu/%llu/%llu, RSS min/max (k): %llu/%llu, cap %llu " 271*0Sstevel@tonic-gate "kB, processes/thpt: %llu/%llu, %llu scans over %lld ms\n", 272*0Sstevel@tonic-gate mode, col->col_name, DELTA(lcols_pg_eff), 273*0Sstevel@tonic-gate DELTA(lcols_pg_att), DELTA(lcols_scan_ineffective), 274*0Sstevel@tonic-gate DELTA(lcols_scan), DELTA(lcols_unenforced_cap), 275*0Sstevel@tonic-gate DELTA(lcols_rss_sample), col->col_src_stat.lcols_min_rss, 276*0Sstevel@tonic-gate col->col_src_stat.lcols_max_rss, col->col_rsslimit, 277*0Sstevel@tonic-gate (col->col_src_stat.lcols_proc_in - 278*0Sstevel@tonic-gate col->col_old_stat.lcols_proc_out), DELTA(lcols_proc_out), 279*0Sstevel@tonic-gate DELTA(lcols_scan_count), DELTA(lcols_scan_time_complete) / 280*0Sstevel@tonic-gate (NANOSEC / MILLISEC)); 281*0Sstevel@tonic-gate col->col_old_stat = col->col_src_stat; 282*0Sstevel@tonic-gate 283*0Sstevel@tonic-gate col = col->col_next; 284*0Sstevel@tonic-gate } 285*0Sstevel@tonic-gate 286*0Sstevel@tonic-gate if (global) 287*0Sstevel@tonic-gate (void) printf(gettext("physical memory utilization: %3u%% " 288*0Sstevel@tonic-gate "cap enforcement threshold: %3u%%\n"), hdr.rs_pressure_cur, 289*0Sstevel@tonic-gate hdr.rs_pressure_cap); 290*0Sstevel@tonic-gate #undef DELTA 291*0Sstevel@tonic-gate } 292*0Sstevel@tonic-gate 293*0Sstevel@tonic-gate static void 294*0Sstevel@tonic-gate print_stats() 295*0Sstevel@tonic-gate { 296*0Sstevel@tonic-gate col_t *col; 297*0Sstevel@tonic-gate char size[6]; 298*0Sstevel@tonic-gate char limit[6]; 299*0Sstevel@tonic-gate char rss[6]; 300*0Sstevel@tonic-gate char paged_att[6]; 301*0Sstevel@tonic-gate char paged_eff[6]; 302*0Sstevel@tonic-gate char paged_att_avg[6]; 303*0Sstevel@tonic-gate char paged_eff_avg[6]; 304*0Sstevel@tonic-gate static int count = 0; 305*0Sstevel@tonic-gate 306*0Sstevel@tonic-gate /* 307*0Sstevel@tonic-gate * Print a header once every 20 times if we're only displaying reports 308*0Sstevel@tonic-gate * for one collection (10 times if -g is used). Print a header every 309*0Sstevel@tonic-gate * interval otherwise. 310*0Sstevel@tonic-gate */ 311*0Sstevel@tonic-gate if (count == 0 || ncol != 1) 312*0Sstevel@tonic-gate (void) printf("%6s %-15s %5s %5s %5s %5s %5s %5s %5s %5s\n", 313*0Sstevel@tonic-gate "id", mode, "nproc", "vm", "rss", "cap", 314*0Sstevel@tonic-gate "at", "avgat", "pg", "avgpg"); 315*0Sstevel@tonic-gate if (++count >= 20 || (count >= 10 && global != 0) || ncol != 1) 316*0Sstevel@tonic-gate count = 0; 317*0Sstevel@tonic-gate 318*0Sstevel@tonic-gate for (col = col_head; col != NULL; col = col->col_next) { 319*0Sstevel@tonic-gate format_size(size, col->col_vmsize, 6); 320*0Sstevel@tonic-gate format_size(rss, col->col_rsssize, 6); 321*0Sstevel@tonic-gate format_size(limit, col->col_rsslimit, 6); 322*0Sstevel@tonic-gate format_size(paged_att, col->col_paged_att, 6); 323*0Sstevel@tonic-gate format_size(paged_eff, col->col_paged_eff, 6); 324*0Sstevel@tonic-gate format_size(paged_att_avg, col->col_paged_att_avg, 6); 325*0Sstevel@tonic-gate format_size(paged_eff_avg, col->col_paged_eff_avg, 6); 326*0Sstevel@tonic-gate (void) printf("%6lld %-15s %5lld %5s %5s %5s %5s %5s %5s %5s\n", 327*0Sstevel@tonic-gate (long long)col->col_id, col->col_name, col->col_nproc, 328*0Sstevel@tonic-gate size, rss, limit, 329*0Sstevel@tonic-gate paged_att, paged_att_avg, 330*0Sstevel@tonic-gate paged_eff, paged_eff_avg); 331*0Sstevel@tonic-gate } 332*0Sstevel@tonic-gate if (global) 333*0Sstevel@tonic-gate (void) printf(gettext("physical memory utilization: %3u%% " 334*0Sstevel@tonic-gate "cap enforcement threshold: %3u%%\n"), hdr.rs_pressure_cur, 335*0Sstevel@tonic-gate hdr.rs_pressure_cap); 336*0Sstevel@tonic-gate } 337*0Sstevel@tonic-gate 338*0Sstevel@tonic-gate int 339*0Sstevel@tonic-gate main(int argc, char *argv[]) 340*0Sstevel@tonic-gate { 341*0Sstevel@tonic-gate int interval = 5; 342*0Sstevel@tonic-gate int count; 343*0Sstevel@tonic-gate int always = 1; 344*0Sstevel@tonic-gate int opt; 345*0Sstevel@tonic-gate 346*0Sstevel@tonic-gate (void) setlocale(LC_ALL, ""); 347*0Sstevel@tonic-gate (void) textdomain(TEXT_DOMAIN); 348*0Sstevel@tonic-gate (void) setprogname("rcapstat"); 349*0Sstevel@tonic-gate 350*0Sstevel@tonic-gate global = unformatted = 0; 351*0Sstevel@tonic-gate while ((opt = getopt(argc, argv, "gu")) != (int)EOF) { 352*0Sstevel@tonic-gate switch (opt) { 353*0Sstevel@tonic-gate case 'g': 354*0Sstevel@tonic-gate global = 1; 355*0Sstevel@tonic-gate break; 356*0Sstevel@tonic-gate case 'u': 357*0Sstevel@tonic-gate unformatted = 1; 358*0Sstevel@tonic-gate break; 359*0Sstevel@tonic-gate default: 360*0Sstevel@tonic-gate usage(); 361*0Sstevel@tonic-gate } 362*0Sstevel@tonic-gate } 363*0Sstevel@tonic-gate 364*0Sstevel@tonic-gate if (argc > optind) 365*0Sstevel@tonic-gate if ((interval = xatoi(argv[optind++])) <= 0) 366*0Sstevel@tonic-gate die(gettext("invalid interval specified\n")); 367*0Sstevel@tonic-gate if (argc > optind) { 368*0Sstevel@tonic-gate if ((count = xatoi(argv[optind++])) <= 0) 369*0Sstevel@tonic-gate die(gettext("invalid count specified\n")); 370*0Sstevel@tonic-gate always = 0; 371*0Sstevel@tonic-gate } 372*0Sstevel@tonic-gate if (argc > optind) 373*0Sstevel@tonic-gate usage(); 374*0Sstevel@tonic-gate 375*0Sstevel@tonic-gate while (always || count-- > 0) { 376*0Sstevel@tonic-gate if (read_stats() != E_SUCCESS) 377*0Sstevel@tonic-gate return (E_ERROR); 378*0Sstevel@tonic-gate if (!unformatted) { 379*0Sstevel@tonic-gate print_stats(); 380*0Sstevel@tonic-gate fflush(stdout); 381*0Sstevel@tonic-gate if (count || always) 382*0Sstevel@tonic-gate (void) sleep(interval); 383*0Sstevel@tonic-gate } else { 384*0Sstevel@tonic-gate struct stat st; 385*0Sstevel@tonic-gate 386*0Sstevel@tonic-gate print_unformatted_stats(); 387*0Sstevel@tonic-gate fflush(stdout); 388*0Sstevel@tonic-gate while (stat(STAT_FILE_DEFAULT, &st) == 0 && 389*0Sstevel@tonic-gate st.st_mtime == stat_mod) 390*0Sstevel@tonic-gate usleep((useconds_t)(0.2 * MICROSEC)); 391*0Sstevel@tonic-gate } 392*0Sstevel@tonic-gate } 393*0Sstevel@tonic-gate 394*0Sstevel@tonic-gate return (E_SUCCESS); 395*0Sstevel@tonic-gate } 396