/* $NetBSD: time.c,v 1.21.8.1 2020/04/25 10:50:47 martin Exp $ */ /*- * Copyright (c) 1980, 1991, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #ifndef lint #if 0 static char sccsid[] = "@(#)time.c 8.1 (Berkeley) 5/31/93"; #else __RCSID("$NetBSD: time.c,v 1.21.8.1 2020/04/25 10:50:47 martin Exp $"); #endif #endif /* not lint */ #ifndef NOT_CSH #include #include #include "csh.h" #include "extern.h" #endif #include /* * C Shell - routines handling process timing and niceing */ static void pdeltat(FILE *, int, struct timeval *, struct timeval *); static void pcsecs(FILE *, long); #ifndef NOT_CSH void settimes(void) { struct rusage ruch; (void)clock_gettime(CLOCK_MONOTONIC, &time0); (void)getrusage(RUSAGE_SELF, &ru0); (void)getrusage(RUSAGE_CHILDREN, &ruch); ruadd(&ru0, &ruch); } /* * dotime is only called if it is truly a builtin function and not a * prefix to another command */ void /*ARGSUSED*/ dotime(Char **v, struct command *t) { struct rusage ru1, ruch; struct timespec timedol; (void)getrusage(RUSAGE_SELF, &ru1); (void)getrusage(RUSAGE_CHILDREN, &ruch); ruadd(&ru1, &ruch); (void)clock_gettime(CLOCK_MONOTONIC, &timedol); prusage(cshout, &ru0, &ru1, &timedol, &time0); } /* * donice is only called when it on the line by itself or with a +- value */ void /*ARGSUSED*/ donice(Char **v, struct command *t) { Char *cp; int nval; nval = 0; v++; cp = *v++; if (cp == 0) nval = 4; else if (*v == 0 && any("+-", cp[0])) nval = getn(cp); (void)setpriority(PRIO_PROCESS, 0, nval); } void ruadd(struct rusage *ru, struct rusage *ru2) { timeradd(&ru->ru_utime, &ru2->ru_utime, &ru->ru_utime); timeradd(&ru->ru_stime, &ru2->ru_stime, &ru->ru_stime); if (ru2->ru_maxrss > ru->ru_maxrss) ru->ru_maxrss = ru2->ru_maxrss; ru->ru_ixrss += ru2->ru_ixrss; ru->ru_idrss += ru2->ru_idrss; ru->ru_isrss += ru2->ru_isrss; ru->ru_minflt += ru2->ru_minflt; ru->ru_majflt += ru2->ru_majflt; ru->ru_nswap += ru2->ru_nswap; ru->ru_inblock += ru2->ru_inblock; ru->ru_oublock += ru2->ru_oublock; ru->ru_msgsnd += ru2->ru_msgsnd; ru->ru_msgrcv += ru2->ru_msgrcv; ru->ru_nsignals += ru2->ru_nsignals; ru->ru_nvcsw += ru2->ru_nvcsw; ru->ru_nivcsw += ru2->ru_nivcsw; } void prusage(FILE *fp, struct rusage *r0, struct rusage *r1, struct timespec *e, struct timespec *b) { struct varent *vp; const char *cp; vp = adrof(STRtime); if (vp && vp->vec[0] && vp->vec[1]) cp = short2str(vp->vec[1]); else cp = "%Uu %Ss %E %P %X+%Dk %I+%Oio %Fpf+%Ww"; prusage1(fp, cp, 1, r0, r1, e, b); } #endif void prusage1(FILE *fp, const char *cp, int prec, struct rusage *r0, struct rusage *r1, struct timespec *e, struct timespec *b) { long i; time_t t; time_t ms; ms = (e->tv_sec - b->tv_sec) * 100 + (e->tv_nsec - b->tv_nsec) / 10000000; t = (r1->ru_utime.tv_sec - r0->ru_utime.tv_sec) * 100 + (r1->ru_utime.tv_usec - r0->ru_utime.tv_usec) / 10000 + (r1->ru_stime.tv_sec - r0->ru_stime.tv_sec) * 100 + (r1->ru_stime.tv_usec - r0->ru_stime.tv_usec) / 10000; for (; *cp; cp++) if (*cp != '%') (void) fputc(*cp, fp); else if (cp[1]) switch (*++cp) { case 'D': /* (average) unshared data size */ (void)fprintf(fp, "%ld", t == 0 ? 0L : (long)((r1->ru_idrss + r1->ru_isrss - (r0->ru_idrss + r0->ru_isrss)) / t)); break; case 'E': /* elapsed (wall-clock) time */ pcsecs(fp, (long) ms); break; case 'F': /* page faults */ (void)fprintf(fp, "%ld", r1->ru_majflt - r0->ru_majflt); break; case 'I': /* FS blocks in */ (void)fprintf(fp, "%ld", r1->ru_inblock - r0->ru_inblock); break; case 'K': /* (average) total data memory used */ (void)fprintf(fp, "%ld", t == 0 ? 0L : (long)(((r1->ru_ixrss + r1->ru_isrss + r1->ru_idrss) - (r0->ru_ixrss + r0->ru_idrss + r0->ru_isrss)) / t)); break; case 'M': /* max. Resident Set Size */ (void)fprintf(fp, "%ld", r1->ru_maxrss / 2L); break; case 'O': /* FS blocks out */ (void)fprintf(fp, "%ld", r1->ru_oublock - r0->ru_oublock); break; case 'P': /* percent time spent running */ /* check if it did not run at all */ if (ms == 0) { (void)fputs("0.0%", fp); } else { char pb[32]; (void)fputs(strpct(pb, sizeof(pb), (uintmax_t)t, (uintmax_t)ms, 1), fp); (void)fputc('%', fp); } break; case 'R': /* page reclaims */ (void)fprintf(fp, "%ld", r1->ru_minflt - r0->ru_minflt); break; case 'S': /* system CPU time used */ pdeltat(fp, prec, &r1->ru_stime, &r0->ru_stime); break; case 'U': /* user CPU time used */ pdeltat(fp, prec, &r1->ru_utime, &r0->ru_utime); break; case 'W': /* number of swaps */ i = r1->ru_nswap - r0->ru_nswap; (void)fprintf(fp, "%ld", i); break; case 'X': /* (average) shared text size */ (void)fprintf(fp, "%ld", t == 0 ? 0L : (long)((r1->ru_ixrss - r0->ru_ixrss) / t)); break; case 'c': /* num. involuntary context switches */ (void)fprintf(fp, "%ld", r1->ru_nivcsw - r0->ru_nivcsw); break; case 'k': /* number of signals received */ (void)fprintf(fp, "%ld", r1->ru_nsignals-r0->ru_nsignals); break; case 'r': /* socket messages received */ (void)fprintf(fp, "%ld", r1->ru_msgrcv - r0->ru_msgrcv); break; case 's': /* socket messages sent */ (void)fprintf(fp, "%ld", r1->ru_msgsnd - r0->ru_msgsnd); break; case 'w': /* num. voluntary context switches (waits) */ (void)fprintf(fp, "%ld", r1->ru_nvcsw - r0->ru_nvcsw); break; } (void)fputc('\n', fp); } static void pdeltat(FILE *fp, int prec, struct timeval *t1, struct timeval *t0) { struct timeval td; timersub(t1, t0, &td); (void)fprintf(fp, "%ld.%0*ld", (long)td.tv_sec, prec, (long)(td.tv_usec / 100000)); } #define P2DIG(fp, i) (void)fprintf(fp, "%ld%ld", (i) / 10, (i) % 10) #ifndef NOT_CSH void psecs(long l) { long i; i = l / 3600; if (i) { (void)fprintf(cshout, "%ld:", i); i = l % 3600; P2DIG(cshout, i / 60); goto minsec; } i = l; (void)fprintf(cshout, "%ld", i / 60); minsec: i %= 60; (void)fputc(':', cshout); P2DIG(cshout, i); } #endif static void pcsecs(FILE *fp, long l) /* PWP: print mm:ss.dd, l is in sec*100 */ { long i; i = l / 360000; if (i) { (void)fprintf(fp, "%ld:", i); i = (l % 360000) / 100; P2DIG(fp, i / 60); goto minsec; } i = l / 100; (void)fprintf(fp, "%ld", i / 60); minsec: i %= 60; (void)fputc(':', fp); P2DIG(fp, i); (void)fputc('.', fp); P2DIG(fp, (l % 100)); }