1 /* Get the system load averages.
2 Copyright (C) 1985, 86, 87, 88, 89, 91, 92, 93, 1994, 1995
3 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2, or (at your option)
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
20 /* Compile-time symbols that this file uses:
22 FIXUP_KERNEL_SYMBOL_ADDR() Adjust address in returned struct nlist.
23 KERNEL_FILE Pathname of the kernel to nlist.
24 LDAV_CVT() Scale the load average from the kernel.
26 LDAV_SYMBOL Name of kernel symbol giving load average.
27 LOAD_AVE_TYPE Type of the load average array in the kernel.
28 Must be defined unless one of
29 apollo, DGUX, NeXT, or UMAX is defined;
30 otherwise, no load average is available.
31 NLIST_STRUCT Include nlist.h, not a.out.h, and
32 the nlist n_name element is a pointer,
34 NLIST_NAME_UNION struct nlist has an n_un member, not n_name.
35 LINUX_LDAV_FILE [__linux__]: File containing load averages.
37 Specific system predefines this file uses, aside from setting
38 default values if not emacs:
41 BSD Real BSD, not just BSD-like.
44 eunice UNIX emulator under VMS.
46 MSDOS No-op for MSDOS.
49 sequent Sequent Dynix 3.x.x (BSD)
50 _SEQUENT_ Sequent DYNIX/ptx 1.x.x (SYSV)
51 sony_news NEWS-OS (works at least for 4.1C)
55 WIN32 No-op for Windows95/NT.
56 __linux__ Linux: assumes /proc filesystem mounted.
57 Support from Michael K. Johnson.
58 __NetBSD__ NetBSD: assumes /kern filesystem mounted.
60 In addition, to avoid nesting many #ifdefs, we internally set
61 LDAV_DONE to indicate that the load average has been computed.
63 We also #define LDAV_PRIVILEGED if a program will require
64 special installation to be able to call getloadavg. */
66 /* This should always be first. */
71 #include <sys/types.h>
73 /* Both the Emacs and non-Emacs sections want this. Some
74 configuration files' definitions for the LOAD_AVE_CVT macro (like
75 sparc.h's) use macros like FSCALE, defined here. */
77 # include <sys/param.h>
81 /* Exclude all the code except the test program at the end
82 if the system has its own `getloadavg' function.
84 The declaration of `errno' is needed by the test program
85 as well as the function itself, so it comes first. */
93 #ifndef HAVE_GETLOADAVG
96 /* The existing Emacs configuration files define a macro called
97 LOAD_AVE_CVT, which accepts a value of type LOAD_AVE_TYPE, and
98 returns the load average multiplied by 100. What we actually want
99 is a macro called LDAV_CVT, which returns the load average as an
102 For backwards compatibility, we'll define LDAV_CVT in terms of
103 LOAD_AVE_CVT, but future machine config files should just define
104 LDAV_CVT directly. */
106 # if !defined(LDAV_CVT) && defined(LOAD_AVE_CVT)
107 # define LDAV_CVT(n) (LOAD_AVE_CVT (n) / 100.0)
110 # if !defined (BSD) && defined (ultrix)
111 /* Ultrix behaves like BSD on Vaxen. */
116 /* NeXT in the 2.{0,1,2} releases defines BSD in <sys/param.h>, which
117 conflicts with the definition understood in this file, that this
121 /* NeXT defines FSCALE in <sys/param.h>. However, we take FSCALE being
122 defined to mean that the nlist method should be used, which is not true. */
126 /* Set values that are different from the defaults, which are
127 set a little farther down with #ifndef. */
130 /* Some shorthands. */
132 # if defined (HPUX) && !defined (hpux)
136 # if defined (__hpux) && !defined (hpux)
140 # if defined (__sun) && !defined (sun)
144 # if defined(hp300) && !defined(hpux)
148 # if defined(ultrix) && defined(mips)
152 # if defined (__SVR4) && !defined (SVR4)
156 # if (defined(sun) && defined(SVR4)) || defined (SOLARIS2)
160 # if defined (__osf__) && (defined (__alpha) || defined (__alpha__))
162 # include <sys/table.h>
165 # if defined (__osf__) && (defined (mips) || defined (__mips__))
167 # include <sys/table.h>
170 /* UTek's /bin/cc on the 4300 has no architecture specific cpp define by
171 default, but _MACH_IND_SYS_TYPES is defined in <sys/types.h>. Combine
172 that with a couple of other things and we'll have a unique match. */
173 # if !defined (tek4300) && defined (unix) && defined (m68k) && defined (mc68000) && defined (mc68020) && defined (_MACH_IND_SYS_TYPES)
174 # define tek4300 /* Define by emacs, but not by other users. */
178 /* VAX C can't handle multi-line #ifs, or lines longer than 256 chars. */
179 # ifndef LOAD_AVE_TYPE
182 # define LOAD_AVE_TYPE long
186 # define LOAD_AVE_TYPE long
190 # define LOAD_AVE_TYPE long
194 # define LOAD_AVE_TYPE long
198 # define LOAD_AVE_TYPE long
202 # define LOAD_AVE_TYPE long
206 # define LOAD_AVE_TYPE long
210 # define LOAD_AVE_TYPE long
214 # define LOAD_AVE_TYPE long
217 # if defined (ardent) && defined (titan)
218 # define LOAD_AVE_TYPE long
222 # define LOAD_AVE_TYPE long
225 # if defined(alliant) && defined(i860) /* Alliant FX/2800 */
226 # define LOAD_AVE_TYPE long
230 # define LOAD_AVE_TYPE long
234 # define LOAD_AVE_TYPE double
236 # define LDAV_CVT(n) (n)
240 # endif /* No LOAD_AVE_TYPE. */
243 /* <sys/param.h> defines an incorrect value for FSCALE on Alpha OSF/1,
244 according to ghazi@noc.rutgers.edu. */
246 # define FSCALE 1024.0
249 # if defined(alliant) && defined(i860) /* Alliant FX/2800 */
250 /* <sys/param.h> defines an incorrect value for FSCALE on an
251 Alliant FX/2800 Concentrix 2.2, according to ghazi@noc.rutgers.edu. */
253 # define FSCALE 100.0
259 /* SunOS and some others define FSCALE in sys/param.h. */
262 # define FSCALE 2048.0
265 # if defined(MIPS) || defined(SVR4) || defined(decstation)
269 # if defined (sgi) || defined (sequent)
270 /* Sometimes both MIPS and sgi are defined, so FSCALE was just defined
271 above under #ifdef MIPS. But we want the sgi value. */
273 # define FSCALE 1000.0
276 # if defined (ardent) && defined (titan)
277 # define FSCALE 65536.0
281 # define FSCALE 100.0
285 # define FSCALE 65536.0
288 # endif /* Not FSCALE. */
290 # if !defined (LDAV_CVT) && defined (FSCALE)
291 # define LDAV_CVT(n) (((double) (n)) / FSCALE)
294 /* VAX C can't handle multi-line #ifs, or lines longer that 256 characters. */
295 # ifndef NLIST_STRUCT
298 # define NLIST_STRUCT
302 # define NLIST_STRUCT
306 # define NLIST_STRUCT
310 # define NLIST_STRUCT
313 # if defined (_SEQUENT_) || defined (sequent)
314 # define NLIST_STRUCT
318 # define NLIST_STRUCT
322 # define NLIST_STRUCT
326 # define NLIST_STRUCT
330 # define NLIST_STRUCT
333 # if defined (ardent) && defined (titan)
334 # define NLIST_STRUCT
338 # define NLIST_STRUCT
342 # define NLIST_STRUCT
345 # if defined(alliant) && defined(i860) /* Alliant FX/2800 */
346 # define NLIST_STRUCT
350 # define NLIST_STRUCT
353 # endif /* defined (NLIST_STRUCT) */
356 # if defined(sgi) || (defined(mips) && !defined(BSD))
357 # define FIXUP_KERNEL_SYMBOL_ADDR(nl) ((nl)[0].n_value &= ~(1 << 31))
361 # if !defined (KERNEL_FILE) && defined (sequent)
362 # define KERNEL_FILE "/dynix"
365 # if !defined (KERNEL_FILE) && defined (hpux)
366 # define KERNEL_FILE "/hp-ux"
369 # if !defined(KERNEL_FILE) && (defined(_SEQUENT_) || defined(MIPS) || defined(SVR4) || defined(ISC) || defined (sgi) || (defined (ardent) && defined (titan)))
370 # define KERNEL_FILE "/unix"
374 # if !defined (LDAV_SYMBOL) && defined (alliant)
375 # define LDAV_SYMBOL "_Loadavg"
378 # if !defined(LDAV_SYMBOL) && ((defined(hpux) && !defined(hp9000s300)) || defined(_SEQUENT_) || defined(SVR4) || defined(ISC) || defined(sgi) || (defined (ardent) && defined (titan)) || defined (_AIX))
379 # define LDAV_SYMBOL "avenrun"
382 # ifdef HAVE_UNISTD_H
388 /* LOAD_AVE_TYPE should only get defined if we're going to use the
390 # if !defined(LOAD_AVE_TYPE) && (defined(BSD) || defined(LDAV_CVT) || defined(KERNEL_FILE) || defined(LDAV_SYMBOL))
391 # define LOAD_AVE_TYPE double
394 # ifdef LOAD_AVE_TYPE
398 # ifndef NLIST_STRUCT
400 # else /* NLIST_STRUCT */
402 # endif /* NLIST_STRUCT */
410 # if defined (hpux) && defined (HAVE_PSTAT_GETDYNAMIC)
411 # include <sys/pstat.h>
415 # define KERNEL_FILE "/vmunix"
416 # endif /* KERNEL_FILE */
419 # define LDAV_SYMBOL "_avenrun"
420 # endif /* LDAV_SYMBOL */
421 # endif /* __linux__ */
427 # include <descrip.h>
429 # include <vms/iodef.h>
434 # define LDAV_CVT(n) ((double) (n))
435 # endif /* !LDAV_CVT */
437 # endif /* LOAD_AVE_TYPE */
440 # ifdef HAVE_MACH_MACH_H
441 # include <mach/mach.h>
448 # include <sys/sysmp.h>
454 # include <sys/time.h>
455 # include <sys/wait.h>
456 # include <sys/syscall.h>
459 # include <machine/cpu.h>
460 # include <inq_stats/statistics.h>
461 # include <inq_stats/sysstats.h>
462 # include <inq_stats/cpustats.h>
463 # include <inq_stats/procstats.h>
464 # else /* Not UMAX_43. */
465 # include <sys/sysdefs.h>
466 # include <sys/statistics.h>
467 # include <sys/sysstats.h>
468 # include <sys/cpudefs.h>
469 # include <sys/cpustats.h>
470 # include <sys/procstats.h>
471 # endif /* Not UMAX_43. */
475 # include <sys/dg_sys_info.h>
478 # if defined(HAVE_FCNTL_H) || defined(_POSIX_VERSION)
481 # include <sys/file.h>
484 /* Avoid static vars inside a function since in HPUX they dump as pure. */
487 static processor_set_t default_set;
488 static int getloadavg_initialized;
492 static unsigned int cpus = 0;
493 static unsigned int samples;
497 static struct dg_sys_info_load_info load_info; /* what-a-mouthful! */
500 # ifdef LOAD_AVE_TYPE
501 /* File descriptor open to /dev/kmem or VMS load ave driver. */
503 /* Nonzero iff channel is valid. */
504 static int getloadavg_initialized;
505 /* Offset in kmem to seek to read load average, or 0 means invalid. */
508 # if !defined(VMS) && !defined(sgi) && !defined(__linux__)
509 static struct nlist nl[2];
510 # endif /* Not VMS or sgi */
514 # endif /* SUNOS_5 */
516 # endif /* LOAD_AVE_TYPE */
518 /* Put the 1 minute, 5 minute and 15 minute load averages
519 into the first NELEM elements of LOADAVG.
520 Return the number written (never more than 3, but may be less than NELEM),
521 or -1 if an error occurred. */
524 getloadavg (loadavg, nelem)
528 int elem = 0; /* Return value. */
530 # ifdef NO_GET_LOAD_AVG
532 /* Set errno to zero to indicate that there was no particular error;
533 this function just can't work at all on this system. */
538 # if !defined (LDAV_DONE) && defined (SUNOS_5)
539 /* Use libkstat because we don't have to be root. */
546 if (kc == 0) return -1;
547 ksp = kstat_lookup (kc, "unix", 0, "system_misc");
548 if (ksp == 0 ) return -1;
549 if (kstat_read (kc, ksp, 0) == -1) return -1;
552 kn = kstat_data_lookup (ksp, "avenrun_1min");
555 /* Return -1 if no load average information is available. */
561 loadavg[elem++] = (double) kn->value.ul/FSCALE;
565 kn = kstat_data_lookup (ksp, "avenrun_5min");
568 loadavg[elem++] = (double) kn->value.ul/FSCALE;
572 kn = kstat_data_lookup (ksp, "avenrun_15min");
574 loadavg[elem++] = (double) kn->value.ul/FSCALE;
580 # endif /* SUNOS_5 */
582 # if !defined (LDAV_DONE) && defined (hpux) && defined (HAVE_PSTAT_GETDYNAMIC)
583 /* Use pstat_getdynamic() because we don't have to be root. */
585 # undef LOAD_AVE_TYPE
587 struct pst_dynamic dyn_info;
588 if (pstat_getdynamic (&dyn_info, sizeof (dyn_info), 0, 0) < 0)
591 loadavg[elem++] = dyn_info.psd_avg_1_min;
593 loadavg[elem++] = dyn_info.psd_avg_5_min;
595 loadavg[elem++] = dyn_info.psd_avg_15_min;
597 # endif /* hpux && HAVE_PSTAT_GETDYNAMIC */
599 # if !defined (LDAV_DONE) && defined (__linux__)
601 # undef LOAD_AVE_TYPE
603 # ifndef LINUX_LDAV_FILE
604 # define LINUX_LDAV_FILE "/proc/loadavg"
611 fd = open (LINUX_LDAV_FILE, O_RDONLY);
614 count = read (fd, ldavgbuf, 40);
619 count = sscanf (ldavgbuf, "%lf %lf %lf",
620 &load_ave[0], &load_ave[1], &load_ave[2]);
624 for (elem = 0; elem < nelem && elem < count; elem++)
625 loadavg[elem] = load_ave[elem];
629 # endif /* __linux__ */
631 # if !defined (LDAV_DONE) && defined (__NetBSD__)
633 # undef LOAD_AVE_TYPE
635 # ifndef NETBSD_LDAV_FILE
636 # define NETBSD_LDAV_FILE "/kern/loadavg"
639 unsigned long int load_ave[3], scale;
643 fp = fopen (NETBSD_LDAV_FILE, "r");
646 count = fscanf (fp, "%lu %lu %lu %lu\n",
647 &load_ave[0], &load_ave[1], &load_ave[2],
653 for (elem = 0; elem < nelem; elem++)
654 loadavg[elem] = (double) load_ave[elem] / (double) scale;
658 # endif /* __NetBSD__ */
660 # if !defined (LDAV_DONE) && defined (NeXT)
662 /* The NeXT code was adapted from iscreen 3.2. */
665 struct processor_set_basic_info info;
668 /* We only know how to get the 1-minute average for this system,
669 so even if the caller asks for more than 1, we only return 1. */
671 if (!getloadavg_initialized)
673 if (processor_set_default (host_self (), &default_set) == KERN_SUCCESS)
674 getloadavg_initialized = 1;
677 if (getloadavg_initialized)
679 info_count = PROCESSOR_SET_BASIC_INFO_COUNT;
680 if (processor_set_info (default_set, PROCESSOR_SET_BASIC_INFO, &host,
681 (processor_set_info_t) &info, &info_count)
683 getloadavg_initialized = 0;
687 loadavg[elem++] = (double) info.load_average / LOAD_SCALE;
691 if (!getloadavg_initialized)
695 # if !defined (LDAV_DONE) && defined (UMAX)
697 /* UMAX 4.2, which runs on the Encore Multimax multiprocessor, does not
698 have a /dev/kmem. Information about the workings of the running kernel
699 can be gathered with inq_stats system calls.
700 We only know how to get the 1-minute average for this system. */
702 struct proc_summary proc_sum_data;
703 struct stat_descr proc_info;
705 register unsigned int i, j;
709 register unsigned int c, i;
710 struct cpu_config conf;
711 struct stat_descr desc;
714 desc.sd_subsys = SUBSYS_CPU;
715 desc.sd_type = CPUTYPE_CONFIG;
716 desc.sd_addr = (char *) &conf;
717 desc.sd_size = sizeof conf;
719 if (inq_stats (1, &desc))
723 for (i = 0; i < conf.config_maxclass; ++i)
725 struct class_stats stats;
726 bzero ((char *) &stats, sizeof stats);
728 desc.sd_type = CPUTYPE_CLASS;
730 desc.sd_addr = (char *) &stats;
731 desc.sd_size = sizeof stats;
733 if (inq_stats (1, &desc))
736 c += stats.class_numcpus;
739 samples = cpus < 2 ? 3 : (2 * cpus / 3);
742 proc_info.sd_next = 0;
743 proc_info.sd_subsys = SUBSYS_PROC;
744 proc_info.sd_type = PROCTYPE_SUMMARY;
745 proc_info.sd_addr = (char *) &proc_sum_data;
746 proc_info.sd_size = sizeof (struct proc_summary);
747 proc_info.sd_sizeused = 0;
749 if (inq_stats (1, &proc_info) != 0)
752 load = proc_sum_data.ps_nrunnable;
754 for (i = samples - 1; i > 0; --i)
756 load += proc_sum_data.ps_nrun[j];
757 if (j++ == PS_NRUNSIZE)
762 loadavg[elem++] = load / samples / cpus;
765 # if !defined (LDAV_DONE) && defined (DGUX)
767 /* This call can return -1 for an error, but with good args
768 it's not supposed to fail. The first argument is for no
769 apparent reason of type `long int *'. */
770 dg_sys_info ((long int *) &load_info,
771 DG_SYS_INFO_LOAD_INFO_TYPE,
772 DG_SYS_INFO_LOAD_VERSION_0);
775 loadavg[elem++] = load_info.one_minute;
777 loadavg[elem++] = load_info.five_minute;
779 loadavg[elem++] = load_info.fifteen_minute;
782 # if !defined (LDAV_DONE) && defined (apollo)
784 /* Apollo code from lisch@mentorg.com (Ray Lischner).
786 This system call is not documented. The load average is obtained as
787 three long integers, for the load average over the past minute,
788 five minutes, and fifteen minutes. Each value is a scaled integer,
789 with 16 bits of integer part and 16 bits of fraction part.
791 I'm not sure which operating system first supported this system call,
792 but I know that SR10.2 supports it. */
794 extern void proc1_$get_loadav ();
795 unsigned long load_ave[3];
797 proc1_$get_loadav (load_ave);
800 loadavg[elem++] = load_ave[0] / 65536.0;
802 loadavg[elem++] = load_ave[1] / 65536.0;
804 loadavg[elem++] = load_ave[2] / 65536.0;
807 # if !defined (LDAV_DONE) && defined (OSF_MIPS)
810 struct tbl_loadavg load_ave;
811 table (TBL_LOADAVG, 0, &load_ave, 1, sizeof (load_ave));
813 = (load_ave.tl_lscale == 0
814 ? load_ave.tl_avenrun.d[0]
815 : (load_ave.tl_avenrun.l[0] / (double) load_ave.tl_lscale));
816 # endif /* OSF_MIPS */
818 # if !defined (LDAV_DONE) && (defined (MSDOS) || defined (WIN32))
821 /* A faithful emulation is going to have to be saved for a rainy day. */
822 for ( ; elem < nelem; elem++)
828 # if !defined (LDAV_DONE) && defined (OSF_ALPHA)
831 struct tbl_loadavg load_ave;
832 table (TBL_LOADAVG, 0, &load_ave, 1, sizeof (load_ave));
833 for (elem = 0; elem < nelem; elem++)
835 = (load_ave.tl_lscale == 0
836 ? load_ave.tl_avenrun.d[elem]
837 : (load_ave.tl_avenrun.l[elem] / (double) load_ave.tl_lscale));
838 # endif /* OSF_ALPHA */
840 # if !defined (LDAV_DONE) && defined (VMS)
841 /* VMS specific code -- read from the Load Ave driver. */
843 LOAD_AVE_TYPE load_ave[3];
844 static int getloadavg_initialized = 0;
853 /* Ensure that there is a channel open to the load ave device. */
854 if (!getloadavg_initialized)
856 /* Attempt to open the channel. */
858 descriptor.dsc$w_length = 18;
859 descriptor.dsc$a_pointer = "$$VMS_LOAD_AVERAGE";
861 $DESCRIPTOR (descriptor, "LAV0:");
863 if (sys$assign (&descriptor, &channel, 0, 0) & 1)
864 getloadavg_initialized = 1;
867 /* Read the load average vector. */
868 if (getloadavg_initialized
869 && !(sys$qiow (0, channel, IO$_READVBLK, 0, 0, 0,
870 load_ave, 12, 0, 0, 0, 0) & 1))
872 sys$dassgn (channel);
873 getloadavg_initialized = 0;
876 if (!getloadavg_initialized)
880 # if !defined (LDAV_DONE) && defined(LOAD_AVE_TYPE) && !defined(VMS)
882 /* UNIX-specific code -- read the average from /dev/kmem. */
884 # define LDAV_PRIVILEGED /* This code requires special installation. */
886 LOAD_AVE_TYPE load_ave[3];
888 /* Get the address of LDAV_SYMBOL. */
892 # ifndef NLIST_STRUCT
893 strcpy (nl[0].n_name, LDAV_SYMBOL);
894 strcpy (nl[1].n_name, "");
895 # else /* NLIST_STRUCT */
896 # ifdef NLIST_NAME_UNION
897 nl[0].n_un.n_name = LDAV_SYMBOL;
898 nl[1].n_un.n_name = 0;
899 # else /* not NLIST_NAME_UNION */
900 nl[0].n_name = LDAV_SYMBOL;
902 # endif /* not NLIST_NAME_UNION */
903 # endif /* NLIST_STRUCT */
907 # if !(defined (_AIX) && !defined (ps2))
908 nlist (KERNEL_FILE, nl)
910 knlist (nl, 1, sizeof (nl[0]))
913 /* Omit "&& nl[0].n_type != 0 " -- it breaks on Sun386i. */
915 # ifdef FIXUP_KERNEL_SYMBOL_ADDR
916 FIXUP_KERNEL_SYMBOL_ADDR (nl);
918 offset = nl[0].n_value;
920 # endif /* !SUNOS_5 */
924 ldav_off = sysmp (MP_KERNADDR, MPKA_AVENRUN);
926 offset = (long) ldav_off & 0x7fffffff;
930 /* Make sure we have /dev/kmem open. */
931 if (!getloadavg_initialized)
934 channel = open ("/dev/kmem", 0);
937 /* Set the channel to close on exec, so it does not
938 litter any child's descriptor table. */
941 # define FD_CLOEXEC 1
943 (void) fcntl (channel, F_SETFD, FD_CLOEXEC);
945 getloadavg_initialized = 1;
948 /* We pass 0 for the kernel, corefile, and swapfile names
949 to use the currently running kernel. */
950 kd = kvm_open (0, 0, 0, O_RDONLY, 0);
953 /* nlist the currently running kernel. */
955 offset = nl[0].n_value;
956 getloadavg_initialized = 1;
958 # endif /* SUNOS_5 */
961 /* If we can, get the load average values. */
962 if (offset && getloadavg_initialized)
964 /* Try to read the load. */
966 if (lseek (channel, offset, 0) == -1L
967 || read (channel, (char *) load_ave, sizeof (load_ave))
968 != sizeof (load_ave))
971 getloadavg_initialized = 0;
974 if (kvm_read (kd, offset, (char *) load_ave, sizeof (load_ave))
975 != sizeof (load_ave))
978 getloadavg_initialized = 0;
980 # endif /* SUNOS_5 */
983 if (offset == 0 || !getloadavg_initialized)
985 # endif /* LOAD_AVE_TYPE and not VMS */
987 # if !defined (LDAV_DONE) && defined (LOAD_AVE_TYPE) /* Including VMS. */
989 loadavg[elem++] = LDAV_CVT (load_ave[0]);
991 loadavg[elem++] = LDAV_CVT (load_ave[1]);
993 loadavg[elem++] = LDAV_CVT (load_ave[2]);
996 # endif /* !LDAV_DONE && LOAD_AVE_TYPE */
1001 /* Set errno to zero to indicate that there was no particular error;
1002 this function just can't work at all on this system. */
1008 #endif /* ! HAVE_GETLOADAVG */
1019 naptime = atoi (argv[1]);
1026 errno = 0; /* Don't be misled if it doesn't set errno. */
1027 loads = getloadavg (avg, 3);
1030 perror ("Error getting load average");
1034 printf ("1-minute: %f ", avg[0]);
1036 printf ("5-minute: %f ", avg[1]);
1038 printf ("15-minute: %f ", avg[2]);