From: David van Moolenbroek Date: Mon, 28 Sep 2015 11:41:16 +0000 (+0000) Subject: Import NetBSD time(1) X-Git-Url: http://zhaoyanbai.com/repos/?a=commitdiff_plain;h=b7f0178aeb1a4f3da1e3a29135e19b19902f0af9;p=minix.git Import NetBSD time(1) Change-Id: I035d21a926aa82434c24a84b914bd58ac064e66a --- diff --git a/minix/commands/Makefile b/minix/commands/Makefile index 650f0be66..472736baf 100644 --- a/minix/commands/Makefile +++ b/minix/commands/Makefile @@ -25,7 +25,7 @@ SUBDIR= add_route arp at backup \ slip spell sprofalyze sprofdiff srccrc \ svrctl swifi synctree sysenv \ tcpd tcpdp tcpstat telnet \ - telnetd term termcap tget time \ + telnetd term termcap tget \ truncate udpstat umount \ update version vol \ writeisofs fetch \ diff --git a/minix/commands/time/Makefile b/minix/commands/time/Makefile deleted file mode 100644 index a91e94f20..000000000 --- a/minix/commands/time/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -PROG= time - -.include diff --git a/minix/commands/time/time.1 b/minix/commands/time/time.1 deleted file mode 100644 index eba218dd5..000000000 --- a/minix/commands/time/time.1 +++ /dev/null @@ -1,32 +0,0 @@ -.TH TIME 1 -.SH NAME -time \- report how long a command takes -.SH SYNOPSIS -\fBtime [-C] \fIcommand\fR -.br -.de FL -.TP -\\fB\\$1\\fR -\\$2 -.. -.de EX -.TP 20 -\\fB\\$1\\fR -# \\$2 -.. -The -C option tells time to report the cpu cycle counter -difference. -.SH EXAMPLES -.TP 20 -.B time a.out -# Report how long \fIa.out\fR takes -.TP 20 -.B time ls \-l *.c -# Report how long \fIls\fR takes -.SH DESCRIPTION -.PP -The command is executed and the real time, user time, and system time (in -hours, minutes, and seconds) are printed. -Shell scripts cannot be timed. -.SH "SEE ALSO" -.BR times (2). diff --git a/minix/commands/time/time.c b/minix/commands/time/time.c deleted file mode 100644 index 3fb975c22..000000000 --- a/minix/commands/time/time.c +++ /dev/null @@ -1,172 +0,0 @@ -/* time - time a command Authors: Andy Tanenbaum & Michiel Huisjes */ - -#define NEW 1 - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* -DNEW prints time to 0.01 sec. */ -#ifdef NEW -#define HUNDREDTHS 1 -#endif - -char **args; -char *name; - -int digit_seen; -char a[] = " . \0"; - -int main(int argc, char **argv); -void print_time(clock_t t); -void twin(int n, char *p); -void execute(void); - -int main(argc, argv) -int argc; -char *argv[]; -{ - int cycles = 0; - struct tms pre_buf, post_buf; - int status, pid; - struct tms dummy; - int start_time, end_time; - u64_t start_tsc, end_tsc, spent_tsc; - clock_t real_time; - int c; - - if (argc == 1) exit(0); - - while((c=getopt(argc, argv, "C")) != EOF) { - switch(c) { - case 'C': - cycles = 1; - break; - default: - fprintf(stderr, "usage: time [-C] \n"); - exit(1); - } - } - - argv += optind; - argc -= optind; - - args = &argv[0]; - name = argv[0]; - - /* Get real time at start of run. */ - start_time = times(&dummy); - read_tsc_64(&start_tsc); - - /* Fork off child. */ - if ((pid = fork()) < 0) { - std_err("Cannot fork\n"); - exit(1); - } - if (pid == 0) execute(); - - /* Parent is the time program. Disable interrupts and wait. */ - signal(SIGINT, SIG_IGN); - signal(SIGQUIT, SIG_IGN); - - do { - times(&pre_buf); - } while (wait(&status) != pid); - read_tsc_64(&end_tsc); - spent_tsc = end_tsc - start_tsc; - end_time = times(&dummy); - real_time = (end_time - start_time); - - if ((status & 0377) != 0) std_err("Command terminated abnormally.\n"); - times(&post_buf); - - if(cycles) { - fprintf(stderr, "%qd tsc ", spent_tsc); - } - /* Print results. -DNEW enables time on one line to 0.01 sec */ -#ifndef NEW - std_err("real "); - print_time(real_time); - std_err("\nuser "); - print_time(post_buf.tms_cutime - pre_buf.tms_cutime); - std_err("\nsys "); - print_time(post_buf.tms_cstime - pre_buf.tms_cstime); - std_err("\n"); -#else - print_time(real_time); - std_err(" real"); - print_time(post_buf.tms_cutime - pre_buf.tms_cutime); - std_err(" user"); - print_time(post_buf.tms_cstime - pre_buf.tms_cstime); - std_err(" sys\n"); -#endif - return((status & 0377) ? -1 : (status >> 8)); -} - -void print_time(t) -register clock_t t; -{ -/* Print the time 't' in hours: minutes: seconds. 't' is in ticks. */ - - int hours, minutes, seconds, hundredths, i; - u32_t system_hz; - - system_hz = (u32_t) sysconf(_SC_CLK_TCK); - - digit_seen = 0; - for (i = 0; i < 8; i++) a[i] = ' '; - hours = (int) (t / ((clock_t) 3600 * system_hz)); - t -= (clock_t) hours * 3600 * system_hz; - minutes = (int) (t / ((clock_t) 60 * system_hz)); - t -= (clock_t) minutes * 60 * system_hz; - seconds = (int) (t / system_hz); - t -= (clock_t) seconds * system_hz; - hundredths = (int) (t * 100 / system_hz); - - if (hours) { - twin(hours, &a[0]); - a[2] = ':'; - } - if (minutes || digit_seen) { - twin(minutes, &a[3]); - a[5] = ':'; - } - if (seconds || digit_seen) - twin(seconds, &a[6]); - else - a[7] = '0'; - a[9] = hundredths / 10 + '0'; -#ifdef HUNDREDTHS /* tenths used to be enough */ - a[10] = hundredths % 10 + '0'; -#endif - std_err(a); -} - -void twin(n, p) -int n; -char *p; -{ - char c1, c2; - c1 = (n / 10) + '0'; - c2 = (n % 10) + '0'; - if (digit_seen == 0 && c1 == '0') c1 = ' '; - *p++ = c1; - *p++ = c2; - if (n > 0) digit_seen = 1; -} - -void execute() -{ - execvp(name, args); - std_err("Cannot execute "); - std_err(name); - std_err("\n"); - exit(-1); -} diff --git a/usr.bin/Makefile b/usr.bin/Makefile index 0be439f3f..4f1a4bfcf 100644 --- a/usr.bin/Makefile +++ b/usr.bin/Makefile @@ -25,7 +25,7 @@ SUBDIR= asa \ \ sdiff sed seq shar shlock \ shuffle sort split stat su \ - tail tee tic touch tput \ + tail tee tic time touch tput \ tr true tsort tty ul uname unexpand unifdef \ uniq units unvis unzip users \ uudecode uuencode uuidgen vis \ diff --git a/usr.bin/time/Makefile b/usr.bin/time/Makefile new file mode 100644 index 000000000..6f7cadea6 --- /dev/null +++ b/usr.bin/time/Makefile @@ -0,0 +1,16 @@ +# $NetBSD: Makefile,v 1.9 2011/08/28 08:24:42 christos Exp $ +# @(#)Makefile 8.1 (Berkeley) 6/6/93 + +.include + +CPPFLAGS+= -DNOT_CSH +CPPFLAGS+= -I. -I${NETBSDSRCDIR}/bin +SRCS= time.c xtime.c +PROG= time + +.PATH: ${NETBSDSRCDIR}/bin/csh + +LDADD+=-lutil +DPADD+=${LIBUTIL} + +.include diff --git a/usr.bin/time/ext.h b/usr.bin/time/ext.h new file mode 100644 index 000000000..414a1ab7b --- /dev/null +++ b/usr.bin/time/ext.h @@ -0,0 +1,5 @@ +/* $NetBSD: ext.h,v 1.2 2011/11/09 19:10:10 christos Exp $ */ + +/* borrowed from ../../bin/csh/extern.h */ +void prusage(FILE *, struct rusage *, struct rusage *, struct timespec *, + struct timespec *); diff --git a/usr.bin/time/time.1 b/usr.bin/time/time.1 new file mode 100644 index 000000000..10cd6b2a8 --- /dev/null +++ b/usr.bin/time/time.1 @@ -0,0 +1,172 @@ +.\" $NetBSD: time.1,v 1.25 2011/11/09 19:42:27 wiz 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. +.\" +.\" @(#)time.1 8.1 (Berkeley) 6/6/93 +.\" +.Dd November 9, 2011 +.Dt TIME 1 +.Os +.Sh NAME +.Nm time +.Nd time command execution +.Sh SYNOPSIS +.Nm +.Op Fl clp +.Ar command +.Op Ar argument ... +.Sh DESCRIPTION +The +.Nm +utility +executes and +times +.Ar command . +After the command finishes, +.Nm +writes the total elapsed time (wall clock time), +.Pq Dq real , +the CPU time spent executing +.Ar command +at user level +.Pq Dq user , +and the CPU time spent executing in the operating system kernel +.Pq Dq sys , +to the standard error stream. +Times are reported in seconds. +.Pp +Available options: +.Bl -tag -width Ds +.It Fl c +Displays information in the format used by the +.Nm +builtin of +.Xr csh 1 . +.It Fl l +Lists resource utilization information. +The contents of the +.Ar command +process's +.Em rusage +structure are printed; see below. +.It Fl p +The output is formatted as specified by +.St -p1003.2-92 . +.El +.Pp +Some shells, such as +.Xr csh 1 +and +.Xr ksh 1 , +have their own and syntactically different built-in version of +.Nm . +The utility described here +is available as +.Pa /usr/bin/time +to users of these shells. +.Ss Resource Utilization +If the +.Fl l +option is given, the following resource usage +information is displayed +in addition to the timing information: +.Bl -item -offset indent -compact +.It +maximum resident set size +.It +average shared memory size +.It +average unshared data size +.It +average unshared stack size +.It +page reclaims +.It +page faults +.It +swaps +.It +block input operations +.It +block output operations +.It +messages sent +.It +messages received +.It +signals received +.It +voluntary context switches +.It +involuntary context switches +.El +Resource usage is the total for the execution of +.Ar command +and any child processes it spawns, as per +.Xr wait4 2 . +.Sh FILES +.Bl -tag -width Xsys/resource.hX -compact +.It Aq sys/resource.h +.El +.Sh EXIT STATUS +The +.Nm +utility exits with one of the following values: +.Bl -tag -width indent +.It 1-125 +An error occurred in the +.Nm +utility. +.It 126 +The +.Ar command +was found but could not be invoked. +.It 127 +The +.Ar command +could not be found. +.El +.Pp +Otherwise, the exit status of +.Nm +will be that of +.Ar command . +.Sh SEE ALSO +.Xr csh 1 , +.Xr ksh 1 , +.Xr clock_gettime 2 , +.Xr getrusage 2 +.Sh STANDARDS +The +.Nm +utility conforms to +.St -p1003.2-92 . +.Sh BUGS +The granularity of seconds on microprocessors is crude and +can result in times being reported for CPU usage which are too large by +a second. diff --git a/usr.bin/time/time.c b/usr.bin/time/time.c new file mode 100644 index 000000000..73208a296 --- /dev/null +++ b/usr.bin/time/time.c @@ -0,0 +1,209 @@ +/* $NetBSD: time.c,v 1.22 2011/11/09 19:10:10 christos Exp $ */ + +/* + * Copyright (c) 1987, 1988, 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 +__COPYRIGHT("@(#) Copyright (c) 1987, 1988, 1993\ + The Regents of the University of California. All rights reserved."); +#endif /* not lint */ + +#ifndef lint +#if 0 +static char sccsid[] = "@(#)time.c 8.1 (Berkeley) 6/6/93"; +#endif +__RCSID("$NetBSD: time.c,v 1.22 2011/11/09 19:10:10 christos Exp $"); +#endif /* not lint */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "ext.h" + +__dead static void usage(void); +static void prl(long, const char *); +static void prts(const char *, const char *, const struct timespec *, + const char *); +static void prtv(const char *, const char *, const struct timeval *, + const char *); + +int +main(int argc, char ** volatile argv) +{ + int pid; + int ch, status; + int volatile portableflag; + int volatile lflag; + int volatile cshflag; + const char *decpt; + const struct lconv *lconv; + struct timespec before, after; + struct rusage ru; + + (void)setlocale(LC_ALL, ""); + + cshflag = lflag = portableflag = 0; + while ((ch = getopt(argc, argv, "clp")) != -1) { + switch (ch) { + case 'c': + cshflag = 1; + portableflag = 0; + lflag = 0; + break; + case 'p': + portableflag = 1; + cshflag = 0; + lflag = 0; + break; + case 'l': + lflag = 1; + portableflag = 0; + cshflag = 0; + break; + case '?': + default: + usage(); + } + } + argc -= optind; + argv += optind; + + if (argc < 1) + usage(); + + (void)clock_gettime(CLOCK_MONOTONIC, &before); + switch(pid = vfork()) { + case -1: /* error */ + err(EXIT_FAILURE, "Vfork failed"); + /* NOTREACHED */ + case 0: /* child */ + /* LINTED will return only on failure */ + execvp(*argv, argv); + err((errno == ENOENT) ? 127 : 126, "Can't exec `%s'", *argv); + /* NOTREACHED */ + } + + /* parent */ + (void)signal(SIGINT, SIG_IGN); + (void)signal(SIGQUIT, SIG_IGN); + if ((pid = wait4(pid, &status, 0, &ru)) == -1) + err(EXIT_FAILURE, "wait4 %d failed", pid); + (void)clock_gettime(CLOCK_MONOTONIC, &after); + if (!WIFEXITED(status)) + warnx("Command terminated abnormally."); + timespecsub(&after, &before, &after); + + if ((lconv = localeconv()) == NULL || + (decpt = lconv->decimal_point) == NULL) + decpt = "."; + + if (cshflag) { + static struct rusage null_ru; + before.tv_sec = 0; + before.tv_nsec = 0; + prusage(stderr, &null_ru, &ru, &after, &before); + } else if (portableflag) { + prts("real ", decpt, &after, "\n"); + prtv("user ", decpt, &ru.ru_utime, "\n"); + prtv("sys ", decpt, &ru.ru_stime, "\n"); + } else { + prts("", decpt, &after, " real "); + prtv("", decpt, &ru.ru_utime, " user "); + prtv("", decpt, &ru.ru_stime, " sys\n"); + } + + if (lflag) { + int hz = (int)sysconf(_SC_CLK_TCK); + unsigned long long ticks; +#define SCALE(x) (long)(ticks ? x / ticks : 0) + + ticks = hz * (ru.ru_utime.tv_sec + ru.ru_stime.tv_sec) + + hz * (ru.ru_utime.tv_usec + ru.ru_stime.tv_usec) / 1000000; + prl(ru.ru_maxrss, "maximum resident set size"); + prl(SCALE(ru.ru_ixrss), "average shared memory size"); + prl(SCALE(ru.ru_idrss), "average unshared data size"); + prl(SCALE(ru.ru_isrss), "average unshared stack size"); + prl(ru.ru_minflt, "page reclaims"); + prl(ru.ru_majflt, "page faults"); + prl(ru.ru_nswap, "swaps"); + prl(ru.ru_inblock, "block input operations"); + prl(ru.ru_oublock, "block output operations"); + prl(ru.ru_msgsnd, "messages sent"); + prl(ru.ru_msgrcv, "messages received"); + prl(ru.ru_nsignals, "signals received"); + prl(ru.ru_nvcsw, "voluntary context switches"); + prl(ru.ru_nivcsw, "involuntary context switches"); + } + + return (WIFEXITED(status) ? WEXITSTATUS(status) : EXIT_FAILURE); +} + +static void +usage(void) +{ + + (void)fprintf(stderr, "Usage: %s [-clp] utility [argument ...]\n", + getprogname()); + exit(EXIT_FAILURE); +} + +static void +prl(long val, const char *expn) +{ + + (void)fprintf(stderr, "%10ld %s\n", val, expn); +} + +static void +prts(const char *pre, const char *decpt, const struct timespec *ts, + const char *post) +{ + + (void)fprintf(stderr, "%s%9lld%s%02ld%s", pre, (long long)ts->tv_sec, + decpt, (long)ts->tv_nsec / 10000000, post); +} + +static void +prtv(const char *pre, const char *decpt, const struct timeval *tv, + const char *post) +{ + + (void)fprintf(stderr, "%s%9lld%s%02ld%s", pre, (long long)tv->tv_sec, + decpt, (long)tv->tv_usec / 10000, post); +} diff --git a/usr.bin/time/xtime.c b/usr.bin/time/xtime.c new file mode 100644 index 000000000..b685d2de9 --- /dev/null +++ b/usr.bin/time/xtime.c @@ -0,0 +1,9 @@ +/* $NetBSD: xtime.c,v 1.1 2007/02/24 21:30:27 matt Exp $ */ + + + +#include +#include +#include +#include "ext.h" +#include "csh/time.c"