2 * top - a top users display for Unix
5 * Originally written for BSD4.4 system by Christos Zoulas.
6 * Ported to FreeBSD 2.x by Steven Wallace && Wolfram Schneider
7 * Order support hacked in from top-3.5beta6/machine/m_aix41.c
8 * by Monte Mitzelfelt (for latest top see http://www.groupsys.com/topinfo/)
10 * AUTHOR: Christos Zoulas <christos@ee.cornell.edu>
11 * Steven Wallace <swallace@FreeBSD.org>
12 * Wolfram Schneider <wosch@FreeBSD.org>
13 * Thomas Moestl <tmoestl@gmx.net>
14 * Eitan Adler <eadler@FreeBSD.org>
19 #include <sys/errno.h>
20 #include <sys/fcntl.h>
21 #include <sys/param.h>
22 #include <sys/priority.h>
24 #include <sys/resource.h>
26 #include <sys/sysctl.h>
53 #define GETSYSCTL(name, var) getsysctl(name, &(var), sizeof(var))
55 extern struct timeval timeout;
57 enum displaymodes displaymode;
58 static const int namelength = 10;
59 /* TOP_JID_LEN based on max of 999999 */
61 #define TOP_SWAP_LEN 5
63 /* get_process_info passes back a handle. This is what it looks like: */
66 struct kinfo_proc **next_proc; /* points to next valid proc pointer */
67 int remaining; /* number of pointers remaining */
71 /* define what weighted cpu is. */
72 #define weighted_cpu(pct, pp) ((pp)->ki_swtime == 0 ? 0.0 : \
73 ((pct) / (1.0 - exp((pp)->ki_swtime * logcpu))))
75 /* what we consider to be process size: */
76 #define PROCSIZE(pp) ((pp)->ki_size / 1024)
78 #define RU(pp) (&(pp)->ki_rusage)
80 #define PCTCPU(pp) (pcpu[pp - pbase])
82 /* process state names for the "STATE" column of the display */
83 /* the extra nulls in the string "run" are for adding a slash and
84 the processor number when needed */
86 static const char *state_abbrev[] = {
87 "", "START", "RUN\0\0\0", "SLEEP", "STOP", "ZOMB", "WAIT", "LOCK"
93 /* values that we stash away in _init and use in later routines */
97 /* these are retrieved from the kernel in _init */
101 /* these are used in the get_ functions */
105 /* these are for calculating cpu state percentages */
107 static long cp_time[CPUSTATES];
108 static long cp_old[CPUSTATES];
109 static long cp_diff[CPUSTATES];
111 /* these are for detailing the process states */
113 static const char *procstatenames[] = {
114 "", " starting, ", " running, ", " sleeping, ", " stopped, ",
115 " zombie, ", " waiting, ", " lock, ",
118 static int process_states[nitems(procstatenames)];
120 /* these are for detailing the cpu states */
122 static int cpu_states[CPUSTATES];
123 static const char *cpustatenames[] = {
124 "user", "nice", "system", "interrupt", "idle", NULL
127 /* these are for detailing the memory statistics */
129 static const char *memorynames[] = {
130 "K Active, ", "K Inact, ", "K Laundry, ", "K Wired, ", "K Buf, ",
133 static int memory_stats[nitems(memorynames)];
135 static const char *arcnames[] = {
136 "K Total, ", "K MFU, ", "K MRU, ", "K Anon, ", "K Header, ", "K Other",
139 static int arc_stats[nitems(arcnames)];
141 static const char *carcnames[] = {
142 "K Compressed, ", "K Uncompressed, ", ":1 Ratio, ",
145 static int carc_stats[nitems(carcnames)];
147 static const char *swapnames[] = {
148 "K Total, ", "K Used, ", "K Free, ", "% Inuse, ", "K In, ", "K Out",
151 static int swap_stats[nitems(swapnames)];
155 /* these are for keeping track of the proc array */
158 static int onproc = -1;
160 static struct kinfo_proc *pbase;
161 static struct kinfo_proc **pref;
162 static struct kinfo_proc *previous_procs;
163 static struct kinfo_proc **previous_pref;
164 static int previous_proc_count = 0;
165 static int previous_proc_count_max = 0;
166 static int previous_thread;
168 /* data used for recalculating pctcpu */
170 static struct timespec proc_uptime;
171 static struct timeval proc_wall_time;
172 static struct timeval previous_wall_time;
173 static uint64_t previous_interval = 0;
175 /* total number of io operations */
176 static long total_inblock;
177 static long total_oublock;
178 static long total_majflt;
180 /* these are for getting the memory statistics */
182 static int arc_enabled;
183 static int carc_enabled;
184 static int pageshift; /* log base 2 of the pagesize */
186 /* define pagetok in terms of pageshift */
188 #define pagetok(size) ((size) << pageshift)
191 #define ki_swap(kip) \
192 ((kip)->ki_swrss > (kip)->ki_rssize ? (kip)->ki_swrss - (kip)->ki_rssize : 0)
195 * Sorting orders. The first element is the default.
197 static const char *ordernames[] = {
198 "cpu", "size", "res", "time", "pri", "threads",
199 "total", "read", "write", "fault", "vcsw", "ivcsw",
200 "jid", "swap", "pid", NULL
203 /* Per-cpu time states */
207 static unsigned long cpumask;
209 static long *pcpu_cp_time;
210 static long *pcpu_cp_old;
211 static long *pcpu_cp_diff;
212 static int *pcpu_cpu_states;
214 static int compare_swap(const void *a, const void *b);
215 static int compare_jid(const void *a, const void *b);
216 static int compare_pid(const void *a, const void *b);
217 static int compare_tid(const void *a, const void *b);
218 static const char *format_nice(const struct kinfo_proc *pp);
219 static void getsysctl(const char *name, void *ptr, size_t len);
220 static int swapmode(int *retavail, int *retfree);
221 static void update_layout(void);
222 static int find_uid(uid_t needle, int *haystack);
223 static int cmd_matches(struct kinfo_proc *, const char *);
226 find_uid(uid_t needle, int *haystack)
230 for (; i < TOP_MAX_UIDS; ++i)
231 if ((uid_t)haystack[i] == needle)
237 toggle_pcpustats(void)
245 /* Adjust display based on ncpus and the ARC state. */
253 y_swap = 3 + arc_enabled + carc_enabled + has_swap;
254 y_idlecursor = 4 + arc_enabled + carc_enabled + has_swap;
255 y_message = 4 + arc_enabled + carc_enabled + has_swap;
256 y_header = 5 + arc_enabled + carc_enabled + has_swap;
257 y_procs = 6 + arc_enabled + carc_enabled + has_swap;
258 Header_lines = 6 + arc_enabled + carc_enabled + has_swap;
265 y_idlecursor += ncpus - 1;
266 y_message += ncpus - 1;
267 y_header += ncpus - 1;
268 y_procs += ncpus - 1;
269 Header_lines += ncpus - 1;
274 machine_init(struct statics *statics)
276 int i, j, empty, pagesize;
278 int carc_en, nswapdev;
281 size = sizeof(smpmode);
282 if (sysctlbyname("kern.smp.active", &smpmode, &size, NULL, 0) != 0 ||
283 size != sizeof(smpmode))
286 size = sizeof(arc_size);
287 if (sysctlbyname("kstat.zfs.misc.arcstats.size", &arc_size, &size,
288 NULL, 0) == 0 && arc_size != 0)
290 size = sizeof(carc_en);
292 sysctlbyname("vfs.zfs.compressed_arc_enabled", &carc_en, &size,
293 NULL, 0) == 0 && carc_en == 1)
296 kd = kvm_open(NULL, _PATH_DEVNULL, NULL, O_RDONLY, "kvm_open");
300 size = sizeof(nswapdev);
301 if (sysctlbyname("vm.nswapdev", &nswapdev, &size, NULL,
302 0) == 0 && nswapdev != 0)
305 GETSYSCTL("kern.ccpu", ccpu);
307 /* this is used in calculating WCPU -- calculate it ahead of time */
308 logcpu = log(loaddouble(ccpu));
316 /* get the page size and calculate pageshift from it */
317 pagesize = getpagesize();
319 while (pagesize > 1) {
324 /* we only need the amount of log(2)1024 for our conversion */
325 pageshift -= LOG1024;
327 /* fill in the statics information */
328 statics->procstate_names = procstatenames;
329 statics->cpustate_names = cpustatenames;
330 statics->memory_names = memorynames;
332 statics->arc_names = arcnames;
334 statics->arc_names = NULL;
336 statics->carc_names = carcnames;
338 statics->carc_names = NULL;
340 statics->swap_names = swapnames;
342 statics->swap_names = NULL;
343 statics->order_names = ordernames;
345 /* Allocate state for per-CPU stats. */
348 GETSYSCTL("kern.smp.maxcpus", maxcpu);
349 times = calloc(maxcpu * CPUSTATES, sizeof(long));
351 err(1, "calloc for kern.smp.maxcpus");
352 size = sizeof(long) * maxcpu * CPUSTATES;
353 if (sysctlbyname("kern.cp_times", times, &size, NULL, 0) == -1)
354 err(1, "sysctlbyname kern.cp_times");
355 pcpu_cp_time = calloc(1, size);
356 maxid = (size / CPUSTATES / sizeof(long)) - 1;
357 for (i = 0; i <= maxid; i++) {
359 for (j = 0; empty && j < CPUSTATES; j++) {
360 if (times[i * CPUSTATES + j] != 0)
364 cpumask |= (1ul << i);
369 pcpu_cp_old = calloc(ncpus * CPUSTATES, sizeof(long));
370 pcpu_cp_diff = calloc(ncpus * CPUSTATES, sizeof(long));
371 pcpu_cpu_states = calloc(ncpus * CPUSTATES, sizeof(int));
372 statics->ncpus = ncpus;
381 format_header(const char *uname_field)
383 static struct sbuf* header = NULL;
385 /* clean up from last time. */
386 if (header != NULL) {
389 header = sbuf_new_auto();
392 switch (displaymode) {
394 sbuf_printf(header, " %s", ps.thread_id ? " THR" : "PID");
395 sbuf_printf(header, "%*s", ps.jail ? TOP_JID_LEN : 0,
396 ps.jail ? " JID" : "");
397 sbuf_printf(header, " %-*.*s ", namelength, namelength, uname_field);
399 sbuf_cat(header, "THR ");
401 sbuf_cat(header, "PRI NICE SIZE RES ");
403 sbuf_printf(header, "%*s ", TOP_SWAP_LEN - 1, "SWAP");
405 sbuf_cat(header, "STATE ");
407 sbuf_cat(header, "C ");
409 sbuf_cat(header, "TIME ");
410 sbuf_printf(header, " %6s ", ps.wcpu ? "WCPU" : "CPU");
411 sbuf_cat(header, "COMMAND");
416 sbuf_printf(header, " %s%*s %-*.*s",
417 ps.thread_id ? " THR" : "PID",
418 ps.jail ? TOP_JID_LEN : 0, ps.jail ? " JID" : "",
419 namelength, namelength, uname_field);
420 sbuf_cat(header, " VCSW IVCSW READ WRITE FAULT TOTAL PERCENT COMMAND");
425 assert("displaymode must not be set to DISP_MAX");
428 return sbuf_data(header);
431 static int swappgsin = -1;
432 static int swappgsout = -1;
436 get_system_info(struct system_info *si)
438 struct loadavg sysload;
440 struct timeval boottime;
441 uint64_t arc_stat, arc_stat2;
445 /* get the CPU stats */
446 size = (maxid + 1) * CPUSTATES * sizeof(long);
447 if (sysctlbyname("kern.cp_times", pcpu_cp_time, &size, NULL, 0) == -1)
448 err(1, "sysctlbyname kern.cp_times");
449 GETSYSCTL("kern.cp_time", cp_time);
450 GETSYSCTL("vm.loadavg", sysload);
451 GETSYSCTL("kern.lastpid", lastpid);
453 /* convert load averages to doubles */
454 for (i = 0; i < 3; i++)
455 si->load_avg[i] = (double)sysload.ldavg[i] / sysload.fscale;
457 /* convert cp_time counts to percentages */
458 for (i = j = 0; i <= maxid; i++) {
459 if ((cpumask & (1ul << i)) == 0)
461 percentages(CPUSTATES, &pcpu_cpu_states[j * CPUSTATES],
462 &pcpu_cp_time[j * CPUSTATES],
463 &pcpu_cp_old[j * CPUSTATES],
464 &pcpu_cp_diff[j * CPUSTATES]);
467 percentages(CPUSTATES, cpu_states, cp_time, cp_old, cp_diff);
469 /* sum memory & swap statistics */
471 static unsigned int swap_delay = 0;
472 static int swapavail = 0;
473 static int swapfree = 0;
474 static long bufspace = 0;
475 static uint64_t nspgsin, nspgsout;
477 GETSYSCTL("vfs.bufspace", bufspace);
478 GETSYSCTL("vm.stats.vm.v_active_count", memory_stats[0]);
479 GETSYSCTL("vm.stats.vm.v_inactive_count", memory_stats[1]);
480 GETSYSCTL("vm.stats.vm.v_laundry_count", memory_stats[2]);
481 GETSYSCTL("vm.stats.vm.v_wire_count", memory_stats[3]);
482 GETSYSCTL("vm.stats.vm.v_free_count", memory_stats[5]);
483 GETSYSCTL("vm.stats.vm.v_swappgsin", nspgsin);
484 GETSYSCTL("vm.stats.vm.v_swappgsout", nspgsout);
485 /* convert memory stats to Kbytes */
486 memory_stats[0] = pagetok(memory_stats[0]);
487 memory_stats[1] = pagetok(memory_stats[1]);
488 memory_stats[2] = pagetok(memory_stats[2]);
489 memory_stats[3] = pagetok(memory_stats[3]);
490 memory_stats[4] = bufspace / 1024;
491 memory_stats[5] = pagetok(memory_stats[5]);
492 memory_stats[6] = -1;
500 /* compute differences between old and new swap statistic */
502 swap_stats[4] = pagetok(((nspgsin - swappgsin)));
503 swap_stats[5] = pagetok(((nspgsout - swappgsout)));
507 swappgsout = nspgsout;
509 /* call CPU heavy swapmode() only for changes */
510 if (swap_stats[4] > 0 || swap_stats[5] > 0 || swap_delay == 0) {
511 swap_stats[3] = swapmode(&swapavail, &swapfree);
512 swap_stats[0] = swapavail;
513 swap_stats[1] = swapavail - swapfree;
514 swap_stats[2] = swapfree;
521 GETSYSCTL("kstat.zfs.misc.arcstats.size", arc_stat);
522 arc_stats[0] = arc_stat >> 10;
523 GETSYSCTL("vfs.zfs.mfu_size", arc_stat);
524 arc_stats[1] = arc_stat >> 10;
525 GETSYSCTL("vfs.zfs.mru_size", arc_stat);
526 arc_stats[2] = arc_stat >> 10;
527 GETSYSCTL("vfs.zfs.anon_size", arc_stat);
528 arc_stats[3] = arc_stat >> 10;
529 GETSYSCTL("kstat.zfs.misc.arcstats.hdr_size", arc_stat);
530 GETSYSCTL("kstat.zfs.misc.arcstats.l2_hdr_size", arc_stat2);
531 arc_stats[4] = (arc_stat + arc_stat2) >> 10;
532 GETSYSCTL("kstat.zfs.misc.arcstats.bonus_size", arc_stat);
533 arc_stats[5] = arc_stat >> 10;
534 GETSYSCTL("kstat.zfs.misc.arcstats.dnode_size", arc_stat);
535 arc_stats[5] += arc_stat >> 10;
536 GETSYSCTL("kstat.zfs.misc.arcstats.dbuf_size", arc_stat);
537 arc_stats[5] += arc_stat >> 10;
541 GETSYSCTL("kstat.zfs.misc.arcstats.compressed_size", arc_stat);
542 carc_stats[0] = arc_stat >> 10;
543 carc_stats[2] = arc_stat >> 10; /* For ratio */
544 GETSYSCTL("kstat.zfs.misc.arcstats.uncompressed_size", arc_stat);
545 carc_stats[1] = arc_stat >> 10;
546 si->carc = carc_stats;
549 /* set arrays and strings */
551 si->cpustates = pcpu_cpu_states;
554 si->cpustates = cpu_states;
557 si->memory = memory_stats;
558 si->swap = swap_stats;
562 si->last_pid = lastpid;
568 * Print how long system has been up.
569 * (Found by looking getting "boottime" from the kernel)
572 mib[1] = KERN_BOOTTIME;
573 size = sizeof(boottime);
574 if (sysctl(mib, nitems(mib), &boottime, &size, NULL, 0) != -1 &&
575 boottime.tv_sec != 0) {
576 si->boottime = boottime;
578 si->boottime.tv_sec = -1;
582 #define NOPROC ((void *)-1)
585 * We need to compare data from the old process entry with the new
587 * To facilitate doing this quickly we stash a pointer in the kinfo_proc
588 * structure to cache the mapping. We also use a negative cache pointer
589 * of NOPROC to avoid duplicate lookups.
590 * XXX: this could be done when the actual processes are fetched, we do
591 * it here out of laziness.
593 static const struct kinfo_proc *
594 get_old_proc(struct kinfo_proc *pp)
596 const struct kinfo_proc * const *oldpp, *oldp;
599 * If this is the first fetch of the kinfo_procs then we don't have
600 * any previous entries.
602 if (previous_proc_count == 0)
604 /* negative cache? */
605 if (pp->ki_udata == NOPROC)
608 if (pp->ki_udata != NULL)
609 return (pp->ki_udata);
612 * 1) look up based on pid.
613 * 2) compare process start.
614 * If we fail here, then setup a negative cache entry, otherwise
617 oldpp = bsearch(&pp, previous_pref, previous_proc_count,
618 sizeof(*previous_pref), ps.thread ? compare_tid : compare_pid);
620 pp->ki_udata = NOPROC;
624 if (memcmp(&oldp->ki_start, &pp->ki_start, sizeof(pp->ki_start)) != 0) {
625 pp->ki_udata = NOPROC;
628 pp->ki_udata = __DECONST(void *, oldp);
633 * Return the total amount of IO done in blocks in/out and faults.
634 * store the values individually in the pointers passed in.
637 get_io_stats(const struct kinfo_proc *pp, long *inp, long *oup, long *flp,
638 long *vcsw, long *ivcsw)
640 const struct kinfo_proc *oldp;
641 static struct kinfo_proc dummy;
644 oldp = get_old_proc(__DECONST(struct kinfo_proc *, pp));
646 memset(&dummy, 0, sizeof(dummy));
649 *inp = RU(pp)->ru_inblock - RU(oldp)->ru_inblock;
650 *oup = RU(pp)->ru_oublock - RU(oldp)->ru_oublock;
651 *flp = RU(pp)->ru_majflt - RU(oldp)->ru_majflt;
652 *vcsw = RU(pp)->ru_nvcsw - RU(oldp)->ru_nvcsw;
653 *ivcsw = RU(pp)->ru_nivcsw - RU(oldp)->ru_nivcsw;
655 (RU(pp)->ru_inblock - RU(oldp)->ru_inblock) +
656 (RU(pp)->ru_oublock - RU(oldp)->ru_oublock) +
657 (RU(pp)->ru_majflt - RU(oldp)->ru_majflt);
662 * If there was a previous update, use the delta in ki_runtime over
663 * the previous interval to calculate pctcpu. Otherwise, fall back
664 * to using the kernel's ki_pctcpu.
667 proc_calc_pctcpu(struct kinfo_proc *pp)
669 const struct kinfo_proc *oldp;
671 if (previous_interval != 0) {
672 oldp = get_old_proc(pp);
674 return ((double)(pp->ki_runtime - oldp->ki_runtime)
675 / previous_interval);
678 * If this process/thread was created during the previous
679 * interval, charge it's total runtime to the previous
682 else if (pp->ki_start.tv_sec > previous_wall_time.tv_sec ||
683 (pp->ki_start.tv_sec == previous_wall_time.tv_sec &&
684 pp->ki_start.tv_usec >= previous_wall_time.tv_usec))
685 return ((double)pp->ki_runtime / previous_interval);
687 return (pctdouble(pp->ki_pctcpu));
691 * Return true if this process has used any CPU time since the
695 proc_used_cpu(struct kinfo_proc *pp)
697 const struct kinfo_proc *oldp;
699 oldp = get_old_proc(pp);
701 return (PCTCPU(pp) != 0);
702 return (pp->ki_runtime != oldp->ki_runtime ||
703 RU(pp)->ru_nvcsw != RU(oldp)->ru_nvcsw ||
704 RU(pp)->ru_nivcsw != RU(oldp)->ru_nivcsw);
708 * Return the total number of block in/out and faults by a process.
711 get_io_total(const struct kinfo_proc *pp)
715 return (get_io_stats(pp, &dummy, &dummy, &dummy, &dummy, &dummy));
718 static struct handle handle;
721 get_process_info(struct system_info *si, struct process_select *sel,
722 int (*compare)(const void *, const void *))
727 long p_inblock, p_oublock, p_majflt, p_vcsw, p_ivcsw;
730 struct kinfo_proc **prefp;
731 struct kinfo_proc *pp;
732 struct timespec previous_proc_uptime;
735 * If thread state was toggled, don't cache the previous processes.
737 if (previous_thread != sel->thread)
739 previous_thread = sel->thread;
742 * Save the previous process info.
744 if (previous_proc_count_max < nproc) {
745 free(previous_procs);
746 previous_procs = calloc(nproc, sizeof(*previous_procs));
748 previous_pref = calloc(nproc, sizeof(*previous_pref));
749 if (previous_procs == NULL || previous_pref == NULL) {
750 fprintf(stderr, "top: Out of memory.\n");
751 quit(TOP_EX_SYS_ERROR);
753 previous_proc_count_max = nproc;
756 for (i = 0; i < nproc; i++)
757 previous_pref[i] = &previous_procs[i];
758 memcpy(previous_procs, pbase, nproc * sizeof(*previous_procs));
759 qsort(previous_pref, nproc, sizeof(*previous_pref),
760 ps.thread ? compare_tid : compare_pid);
762 previous_proc_count = nproc;
763 previous_proc_uptime = proc_uptime;
764 previous_wall_time = proc_wall_time;
765 previous_interval = 0;
767 pbase = kvm_getprocs(kd, sel->thread ? KERN_PROC_ALL : KERN_PROC_PROC,
769 gettimeofday(&proc_wall_time, NULL);
770 if (clock_gettime(CLOCK_UPTIME, &proc_uptime) != 0)
771 memset(&proc_uptime, 0, sizeof(proc_uptime));
772 else if (previous_proc_uptime.tv_sec != 0 &&
773 previous_proc_uptime.tv_nsec != 0) {
774 previous_interval = (proc_uptime.tv_sec -
775 previous_proc_uptime.tv_sec) * 1000000;
776 nsec = proc_uptime.tv_nsec - previous_proc_uptime.tv_nsec;
778 previous_interval -= 1000000;
781 previous_interval += nsec / 1000;
783 if (nproc > onproc) {
784 pref = realloc(pref, sizeof(*pref) * nproc);
785 pcpu = realloc(pcpu, sizeof(*pcpu) * nproc);
788 if (pref == NULL || pbase == NULL || pcpu == NULL) {
789 fprintf(stderr, "top: Out of memory.\n");
790 quit(TOP_EX_SYS_ERROR);
792 /* get a pointer to the states summary array */
793 si->procstates = process_states;
795 /* count up process states and get pointers to interesting procs */
801 memset(process_states, 0, sizeof(process_states));
803 for (pp = pbase, i = 0; i < nproc; pp++, i++) {
805 if (pp->ki_stat == 0)
809 if (!sel->self && pp->ki_pid == mypid && sel->pid == -1)
813 if (!sel->system && (pp->ki_flag & P_SYSTEM) && sel->pid == -1)
814 /* skip system process */
817 p_io = get_io_stats(pp, &p_inblock, &p_oublock, &p_majflt,
819 total_inblock += p_inblock;
820 total_oublock += p_oublock;
821 total_majflt += p_majflt;
823 process_states[(unsigned char)pp->ki_stat]++;
825 if (pp->ki_stat == SZOMB)
829 if (!sel->kidle && pp->ki_tdflags & TDF_IDLETD && sel->pid == -1)
830 /* skip kernel idle process */
833 PCTCPU(pp) = proc_calc_pctcpu(pp);
834 if (sel->thread && PCTCPU(pp) > 1.0)
836 if (displaymode == DISP_CPU && !sel->idle &&
837 (!proc_used_cpu(pp) ||
838 pp->ki_stat == SSTOP || pp->ki_stat == SIDL))
839 /* skip idle or non-running processes */
842 if (displaymode == DISP_IO && !sel->idle && p_io == 0)
843 /* skip processes that aren't doing I/O */
846 if (sel->jid != -1 && pp->ki_jid != sel->jid)
847 /* skip proc. that don't belong to the selected JID */
850 if (sel->uid[0] != -1 && !find_uid(pp->ki_ruid, sel->uid))
851 /* skip proc. that don't belong to the selected UID */
854 if (sel->pid != -1 && pp->ki_pid != sel->pid)
857 if (!cmd_matches(pp, sel->command))
858 /* skip proc. that doesn't match grep string */
865 /* if requested, sort the "interesting" processes */
867 qsort(pref, active_procs, sizeof(*pref), compare);
869 /* remember active and total counts */
870 si->p_total = total_procs;
871 si->p_pactive = pref_len = active_procs;
873 /* pass back a handle */
874 handle.next_proc = pref;
875 handle.remaining = active_procs;
880 cmd_matches(struct kinfo_proc *proc, const char *term)
882 extern int show_args;
886 /* No command filter set */
889 /* Filter set, does process name contain term? */
890 if (strstr(proc->ki_comm, term))
892 /* Search arguments only if arguments are displayed */
894 args = kvm_getargv(kd, proc, 1024);
896 /* Failed to get arguments so can't search them */
899 while (*args != NULL) {
900 if (strstr(*args, term))
910 format_next_process(struct handle * xhandle, char *(*get_userid)(int), int flags)
912 struct kinfo_proc *pp;
913 const struct kinfo_proc *oldp;
917 struct rusage ru, *rup;
921 static struct sbuf* procbuf = NULL;
923 /* clean up from last time. */
924 if (procbuf != NULL) {
927 procbuf = sbuf_new_auto();
931 /* find and remember the next proc structure */
932 pp = *(xhandle->next_proc++);
933 xhandle->remaining--;
935 /* get the process's command name */
936 if ((pp->ki_flag & P_INMEM) == 0) {
938 * Print swapped processes as <pname>
942 len = strlen(pp->ki_comm);
943 if (len > sizeof(pp->ki_comm) - 3)
944 len = sizeof(pp->ki_comm) - 3;
945 memmove(pp->ki_comm + 1, pp->ki_comm, len);
946 pp->ki_comm[0] = '<';
947 pp->ki_comm[len + 1] = '>';
948 pp->ki_comm[len + 2] = '\0';
952 * Convert the process's runtime from microseconds to seconds. This
953 * time includes the interrupt time although that is not wanted here.
954 * ps(1) is similarly sloppy.
956 cputime = (pp->ki_runtime + 500000) / 1000000;
958 /* generate "STATE" field */
959 switch (state = pp->ki_stat) {
961 if (smpmode && pp->ki_oncpu != NOCPU)
962 sprintf(status, "CPU%d", pp->ki_oncpu);
964 strcpy(status, "RUN");
967 if (pp->ki_kiflag & KI_LOCKBLOCK) {
968 sprintf(status, "*%.6s", pp->ki_lockname);
973 sprintf(status, "%.6s", pp->ki_wmesg);
977 if (state < nitems(state_abbrev)) {
978 sprintf(status, "%.6s", state_abbrev[state]);
980 sprintf(status, "?%5zu", state);
985 cmdbuf = calloc(screen_width + 1, 1);
986 if (cmdbuf == NULL) {
987 warn("calloc(%d)", screen_width + 1);
991 if (!(flags & FMT_SHOWARGS)) {
992 if (ps.thread && pp->ki_flag & P_HADTHREADS &&
994 snprintf(cmdbuf, screen_width, "%s{%s%s}", pp->ki_comm,
995 pp->ki_tdname, pp->ki_moretdname);
997 snprintf(cmdbuf, screen_width, "%s", pp->ki_comm);
1000 if (pp->ki_flag & P_SYSTEM ||
1001 (args = kvm_getargv(kd, pp, screen_width)) == NULL ||
1003 if (ps.thread && pp->ki_flag & P_HADTHREADS &&
1005 snprintf(cmdbuf, screen_width,
1006 "[%s{%s%s}]", pp->ki_comm, pp->ki_tdname,
1009 snprintf(cmdbuf, screen_width,
1010 "[%s]", pp->ki_comm);
1019 argbuflen = screen_width * 4;
1020 argbuf = calloc(argbuflen + 1, 1);
1021 if (argbuf == NULL) {
1022 warn("calloc(%zu)", argbuflen + 1);
1029 /* Extract cmd name from argv */
1030 cmd = basename(*args);
1032 for (; (src = *args++) != NULL; ) {
1035 len = (argbuflen - (dst - argbuf) - 1) / 4;
1037 MIN(strlen(src), len),
1038 VIS_NL | VIS_CSTYLE);
1039 while (*dst != '\0')
1041 if ((argbuflen - (dst - argbuf) - 1) / 4 > 0)
1042 *dst++ = ' '; /* add delimiting space */
1044 if (dst != argbuf && dst[-1] == ' ')
1048 if (strcmp(cmd, pp->ki_comm) != 0) {
1049 if (ps.thread && pp->ki_flag & P_HADTHREADS &&
1051 snprintf(cmdbuf, screen_width,
1052 "%s (%s){%s%s}", argbuf,
1053 pp->ki_comm, pp->ki_tdname,
1056 snprintf(cmdbuf, screen_width,
1057 "%s (%s)", argbuf, pp->ki_comm);
1059 if (ps.thread && pp->ki_flag & P_HADTHREADS &&
1061 snprintf(cmdbuf, screen_width,
1062 "%s{%s%s}", argbuf, pp->ki_tdname,
1065 strlcpy(cmdbuf, argbuf, screen_width);
1071 if (displaymode == DISP_IO) {
1072 oldp = get_old_proc(pp);
1074 ru.ru_inblock = RU(pp)->ru_inblock -
1075 RU(oldp)->ru_inblock;
1076 ru.ru_oublock = RU(pp)->ru_oublock -
1077 RU(oldp)->ru_oublock;
1078 ru.ru_majflt = RU(pp)->ru_majflt - RU(oldp)->ru_majflt;
1079 ru.ru_nvcsw = RU(pp)->ru_nvcsw - RU(oldp)->ru_nvcsw;
1080 ru.ru_nivcsw = RU(pp)->ru_nivcsw - RU(oldp)->ru_nivcsw;
1085 p_tot = rup->ru_inblock + rup->ru_oublock + rup->ru_majflt;
1086 s_tot = total_inblock + total_oublock + total_majflt;
1088 sbuf_printf(procbuf, "%5d ", (ps.thread_id) ? pp->ki_tid : pp->ki_pid);
1091 sbuf_printf(procbuf, "%*d ", TOP_JID_LEN - 1, pp->ki_jid);
1093 sbuf_printf(procbuf, "%-*.*s", namelength, namelength, (*get_userid)(pp->ki_ruid));
1094 sbuf_printf(procbuf, "%6ld ", rup->ru_nvcsw);
1095 sbuf_printf(procbuf, "%6ld ", rup->ru_nivcsw);
1096 sbuf_printf(procbuf, "%6ld ", rup->ru_inblock);
1097 sbuf_printf(procbuf, "%6ld ", rup->ru_oublock);
1098 sbuf_printf(procbuf, "%6ld ", rup->ru_majflt);
1099 sbuf_printf(procbuf, "%6ld ", p_tot);
1100 sbuf_printf(procbuf, "%6.2f%% ", s_tot == 0 ? 0.0 : (p_tot * 100.0 / s_tot));
1103 sbuf_printf(procbuf, "%5d ", (ps.thread_id) ? pp->ki_tid : pp->ki_pid);
1105 sbuf_printf(procbuf, "%*d ", TOP_JID_LEN - 1, pp->ki_jid);
1107 sbuf_printf(procbuf, "%-*.*s ", namelength, namelength, (*get_userid)(pp->ki_ruid));
1110 sbuf_printf(procbuf, "%4d ", pp->ki_numthreads);
1112 sbuf_printf(procbuf, " ");
1115 sbuf_printf(procbuf, "%3d ", pp->ki_pri.pri_level - PZERO);
1116 sbuf_printf(procbuf, "%4s", format_nice(pp));
1117 sbuf_printf(procbuf, "%7s ", format_k(PROCSIZE(pp)));
1118 sbuf_printf(procbuf, "%6s ", format_k(pagetok(pp->ki_rssize)));
1120 sbuf_printf(procbuf, "%*s ",
1122 format_k(pagetok(ki_swap(pp))));
1124 sbuf_printf(procbuf, "%-6.6s ", status);
1127 if (state == SRUN && pp->ki_oncpu != NOCPU) {
1130 cpu = pp->ki_lastcpu;
1132 sbuf_printf(procbuf, "%3d ", cpu);
1134 sbuf_printf(procbuf, "%6s ", format_time(cputime));
1135 sbuf_printf(procbuf, "%6.2f%% ", ps.wcpu ? 100.0 * weighted_cpu(PCTCPU(pp), pp) : 100.0 * PCTCPU(pp));
1137 sbuf_printf(procbuf, "%s", printable(cmdbuf));
1139 return (sbuf_data(procbuf));
1143 getsysctl(const char *name, void *ptr, size_t len)
1147 if (sysctlbyname(name, ptr, &nlen, NULL, 0) == -1) {
1148 fprintf(stderr, "top: sysctl(%s...) failed: %s\n", name,
1150 quit(TOP_EX_SYS_ERROR);
1153 fprintf(stderr, "top: sysctl(%s...) expected %lu, got %lu\n",
1154 name, (unsigned long)len, (unsigned long)nlen);
1155 quit(TOP_EX_SYS_ERROR);
1160 format_nice(const struct kinfo_proc *pp)
1162 const char *fifo, *kproc;
1164 static char nicebuf[4 + 1];
1166 fifo = PRI_NEED_RR(pp->ki_pri.pri_class) ? "" : "F";
1167 kproc = (pp->ki_flag & P_KPROC) ? "k" : "";
1168 switch (PRI_BASE(pp->ki_pri.pri_class)) {
1173 * XXX: the kernel doesn't tell us the original rtprio and
1174 * doesn't really know what it was, so to recover it we
1175 * must be more chummy with the implementation than the
1176 * implementation is with itself. pri_user gives a
1177 * constant "base" priority, but is only initialized
1178 * properly for user threads. pri_native gives what the
1179 * kernel calls the "base" priority, but it isn't constant
1180 * since it is changed by priority propagation. pri_native
1181 * also isn't properly initialized for all threads, but it
1182 * is properly initialized for kernel realtime and idletime
1183 * threads. Thus we use pri_user for the base priority of
1184 * user threads (it is always correct) and pri_native for
1185 * the base priority of kernel realtime and idletime threads
1186 * (there is nothing better, and it is usually correct).
1188 * The field width and thus the buffer are too small for
1189 * values like "kr31F", but such values shouldn't occur,
1190 * and if they do then the tailing "F" is not displayed.
1192 rtpri = ((pp->ki_flag & P_KPROC) ? pp->ki_pri.pri_native :
1193 pp->ki_pri.pri_user) - PRI_MIN_REALTIME;
1194 snprintf(nicebuf, sizeof(nicebuf), "%sr%d%s",
1195 kproc, rtpri, fifo);
1198 if (pp->ki_flag & P_KPROC)
1200 snprintf(nicebuf, sizeof(nicebuf), "%d", pp->ki_nice - NZERO);
1203 /* XXX: as above. */
1204 rtpri = ((pp->ki_flag & P_KPROC) ? pp->ki_pri.pri_native :
1205 pp->ki_pri.pri_user) - PRI_MIN_IDLE;
1206 snprintf(nicebuf, sizeof(nicebuf), "%si%d%s",
1207 kproc, rtpri, fifo);
1215 /* comparison routines for qsort */
1218 compare_pid(const void *p1, const void *p2)
1220 const struct kinfo_proc * const *pp1 = p1;
1221 const struct kinfo_proc * const *pp2 = p2;
1223 assert((*pp2)->ki_pid >= 0 && (*pp1)->ki_pid >= 0);
1225 return ((*pp1)->ki_pid - (*pp2)->ki_pid);
1229 compare_tid(const void *p1, const void *p2)
1231 const struct kinfo_proc * const *pp1 = p1;
1232 const struct kinfo_proc * const *pp2 = p2;
1234 assert((*pp2)->ki_tid >= 0 && (*pp1)->ki_tid >= 0);
1236 return ((*pp1)->ki_tid - (*pp2)->ki_tid);
1240 * proc_compare - comparison function for "qsort"
1241 * Compares the resource consumption of two processes using five
1242 * distinct keys. The keys (in descending order of importance) are:
1243 * percent cpu, cpu ticks, state, resident set size, total virtual
1244 * memory usage. The process states are ordered as follows (from least
1245 * to most important): WAIT, zombie, sleep, stop, start, run. The
1246 * array declaration below maps a process state index into a number
1247 * that reflects this ordering.
1250 static int sorted_state[] = {
1253 1, /* ABANDONED (WAIT) */
1261 #define ORDERKEY_PCTCPU(a, b) do { \
1264 diff = weighted_cpu(PCTCPU((b)), (b)) - \
1265 weighted_cpu(PCTCPU((a)), (a)); \
1267 diff = PCTCPU((b)) - PCTCPU((a)); \
1269 return (diff > 0 ? 1 : -1); \
1272 #define ORDERKEY_CPTICKS(a, b) do { \
1273 int64_t diff = (int64_t)(b)->ki_runtime - (int64_t)(a)->ki_runtime; \
1275 return (diff > 0 ? 1 : -1); \
1278 #define ORDERKEY_STATE(a, b) do { \
1279 int diff = sorted_state[(unsigned char)(b)->ki_stat] - sorted_state[(unsigned char)(a)->ki_stat]; \
1281 return (diff > 0 ? 1 : -1); \
1284 #define ORDERKEY_PRIO(a, b) do { \
1285 int diff = (int)(b)->ki_pri.pri_level - (int)(a)->ki_pri.pri_level; \
1287 return (diff > 0 ? 1 : -1); \
1290 #define ORDERKEY_THREADS(a, b) do { \
1291 int diff = (int)(b)->ki_numthreads - (int)(a)->ki_numthreads; \
1293 return (diff > 0 ? 1 : -1); \
1296 #define ORDERKEY_RSSIZE(a, b) do { \
1297 long diff = (long)(b)->ki_rssize - (long)(a)->ki_rssize; \
1299 return (diff > 0 ? 1 : -1); \
1302 #define ORDERKEY_MEM(a, b) do { \
1303 long diff = (long)PROCSIZE((b)) - (long)PROCSIZE((a)); \
1305 return (diff > 0 ? 1 : -1); \
1308 #define ORDERKEY_JID(a, b) do { \
1309 int diff = (int)(b)->ki_jid - (int)(a)->ki_jid; \
1311 return (diff > 0 ? 1 : -1); \
1314 #define ORDERKEY_SWAP(a, b) do { \
1315 int diff = (int)ki_swap(b) - (int)ki_swap(a); \
1317 return (diff > 0 ? 1 : -1); \
1320 /* compare_cpu - the comparison function for sorting by cpu percentage */
1323 compare_cpu(const void *arg1, const void *arg2)
1325 const struct kinfo_proc *p1 = *(const struct kinfo_proc * const *)arg1;
1326 const struct kinfo_proc *p2 = *(const struct kinfo_proc * const *)arg2;
1328 ORDERKEY_PCTCPU(p1, p2);
1329 ORDERKEY_CPTICKS(p1, p2);
1330 ORDERKEY_STATE(p1, p2);
1331 ORDERKEY_PRIO(p1, p2);
1332 ORDERKEY_RSSIZE(p1, p2);
1333 ORDERKEY_MEM(p1, p2);
1338 /* compare_size - the comparison function for sorting by total memory usage */
1341 compare_size(const void *arg1, const void *arg2)
1343 const struct kinfo_proc *p1 = *(const struct kinfo_proc * const *)arg1;
1344 const struct kinfo_proc *p2 = *(const struct kinfo_proc * const *)arg2;
1346 ORDERKEY_MEM(p1, p2);
1347 ORDERKEY_RSSIZE(p1, p2);
1348 ORDERKEY_PCTCPU(p1, p2);
1349 ORDERKEY_CPTICKS(p1, p2);
1350 ORDERKEY_STATE(p1, p2);
1351 ORDERKEY_PRIO(p1, p2);
1356 /* compare_res - the comparison function for sorting by resident set size */
1359 compare_res(const void *arg1, const void *arg2)
1361 const struct kinfo_proc *p1 = *(const struct kinfo_proc * const *)arg1;
1362 const struct kinfo_proc *p2 = *(const struct kinfo_proc * const *)arg2;
1364 ORDERKEY_RSSIZE(p1, p2);
1365 ORDERKEY_MEM(p1, p2);
1366 ORDERKEY_PCTCPU(p1, p2);
1367 ORDERKEY_CPTICKS(p1, p2);
1368 ORDERKEY_STATE(p1, p2);
1369 ORDERKEY_PRIO(p1, p2);
1374 /* compare_time - the comparison function for sorting by total cpu time */
1377 compare_time(const void *arg1, const void *arg2)
1379 const struct kinfo_proc *p1 = *(const struct kinfo_proc * const *)arg1;
1380 const struct kinfo_proc *p2 = *(const struct kinfo_proc * const *) arg2;
1382 ORDERKEY_CPTICKS(p1, p2);
1383 ORDERKEY_PCTCPU(p1, p2);
1384 ORDERKEY_STATE(p1, p2);
1385 ORDERKEY_PRIO(p1, p2);
1386 ORDERKEY_RSSIZE(p1, p2);
1387 ORDERKEY_MEM(p1, p2);
1392 /* compare_prio - the comparison function for sorting by priority */
1395 compare_prio(const void *arg1, const void *arg2)
1397 const struct kinfo_proc *p1 = *(const struct kinfo_proc * const *)arg1;
1398 const struct kinfo_proc *p2 = *(const struct kinfo_proc * const *)arg2;
1400 ORDERKEY_PRIO(p1, p2);
1401 ORDERKEY_CPTICKS(p1, p2);
1402 ORDERKEY_PCTCPU(p1, p2);
1403 ORDERKEY_STATE(p1, p2);
1404 ORDERKEY_RSSIZE(p1, p2);
1405 ORDERKEY_MEM(p1, p2);
1410 /* compare_threads - the comparison function for sorting by threads */
1412 compare_threads(const void *arg1, const void *arg2)
1414 const struct kinfo_proc *p1 = *(const struct kinfo_proc * const *)arg1;
1415 const struct kinfo_proc *p2 = *(const struct kinfo_proc * const *)arg2;
1417 ORDERKEY_THREADS(p1, p2);
1418 ORDERKEY_PCTCPU(p1, p2);
1419 ORDERKEY_CPTICKS(p1, p2);
1420 ORDERKEY_STATE(p1, p2);
1421 ORDERKEY_PRIO(p1, p2);
1422 ORDERKEY_RSSIZE(p1, p2);
1423 ORDERKEY_MEM(p1, p2);
1428 /* compare_jid - the comparison function for sorting by jid */
1430 compare_jid(const void *arg1, const void *arg2)
1432 const struct kinfo_proc *p1 = *(const struct kinfo_proc * const *)arg1;
1433 const struct kinfo_proc *p2 = *(const struct kinfo_proc * const *)arg2;
1435 ORDERKEY_JID(p1, p2);
1436 ORDERKEY_PCTCPU(p1, p2);
1437 ORDERKEY_CPTICKS(p1, p2);
1438 ORDERKEY_STATE(p1, p2);
1439 ORDERKEY_PRIO(p1, p2);
1440 ORDERKEY_RSSIZE(p1, p2);
1441 ORDERKEY_MEM(p1, p2);
1446 /* compare_swap - the comparison function for sorting by swap */
1448 compare_swap(const void *arg1, const void *arg2)
1450 const struct kinfo_proc *p1 = *(const struct kinfo_proc * const *)arg1;
1451 const struct kinfo_proc *p2 = *(const struct kinfo_proc * const *)arg2;
1453 ORDERKEY_SWAP(p1, p2);
1454 ORDERKEY_PCTCPU(p1, p2);
1455 ORDERKEY_CPTICKS(p1, p2);
1456 ORDERKEY_STATE(p1, p2);
1457 ORDERKEY_PRIO(p1, p2);
1458 ORDERKEY_RSSIZE(p1, p2);
1459 ORDERKEY_MEM(p1, p2);
1464 /* assorted comparison functions for sorting by i/o */
1467 compare_iototal(const void *arg1, const void *arg2)
1469 const struct kinfo_proc * const p1 = *(const struct kinfo_proc * const *)arg1;
1470 const struct kinfo_proc * const p2 = *(const struct kinfo_proc * const *)arg2;
1472 return (get_io_total(p2) - get_io_total(p1));
1476 compare_ioread(const void *arg1, const void *arg2)
1478 const struct kinfo_proc *p1 = *(const struct kinfo_proc * const *)arg1;
1479 const struct kinfo_proc *p2 = *(const struct kinfo_proc * const *)arg2;
1480 long dummy, inp1, inp2;
1482 (void) get_io_stats(p1, &inp1, &dummy, &dummy, &dummy, &dummy);
1483 (void) get_io_stats(p2, &inp2, &dummy, &dummy, &dummy, &dummy);
1485 return (inp2 - inp1);
1489 compare_iowrite(const void *arg1, const void *arg2)
1491 const struct kinfo_proc *p1 = *(const struct kinfo_proc * const *)arg1;
1492 const struct kinfo_proc *p2 = *(const struct kinfo_proc * const *)arg2;
1493 long dummy, oup1, oup2;
1495 (void) get_io_stats(p1, &dummy, &oup1, &dummy, &dummy, &dummy);
1496 (void) get_io_stats(p2, &dummy, &oup2, &dummy, &dummy, &dummy);
1498 return (oup2 - oup1);
1502 compare_iofault(const void *arg1, const void *arg2)
1504 const struct kinfo_proc *p1 = *(const struct kinfo_proc * const *)arg1;
1505 const struct kinfo_proc *p2 = *(const struct kinfo_proc * const *)arg2;
1506 long dummy, flp1, flp2;
1508 (void) get_io_stats(p1, &dummy, &dummy, &flp1, &dummy, &dummy);
1509 (void) get_io_stats(p2, &dummy, &dummy, &flp2, &dummy, &dummy);
1511 return (flp2 - flp1);
1515 compare_vcsw(const void *arg1, const void *arg2)
1517 const struct kinfo_proc *p1 = *(const struct kinfo_proc * const *)arg1;
1518 const struct kinfo_proc *p2 = *(const struct kinfo_proc * const *)arg2;
1519 long dummy, flp1, flp2;
1521 (void) get_io_stats(p1, &dummy, &dummy, &dummy, &flp1, &dummy);
1522 (void) get_io_stats(p2, &dummy, &dummy, &dummy, &flp2, &dummy);
1524 return (flp2 - flp1);
1528 compare_ivcsw(const void *arg1, const void *arg2)
1530 const struct kinfo_proc *p1 = *(const struct kinfo_proc * const *)arg1;
1531 const struct kinfo_proc *p2 = *(const struct kinfo_proc * const *)arg2;
1532 long dummy, flp1, flp2;
1534 (void) get_io_stats(p1, &dummy, &dummy, &dummy, &dummy, &flp1);
1535 (void) get_io_stats(p2, &dummy, &dummy, &dummy, &dummy, &flp2);
1537 return (flp2 - flp1);
1540 int (*compares[])(const void *arg1, const void *arg2) = {
1560 swapmode(int *retavail, int *retfree)
1563 struct kvm_swap swapary[1];
1564 static int pagesize = 0;
1565 static unsigned long swap_maxpages = 0;
1570 #define CONVERT(v) ((quad_t)(v) * pagesize / 1024)
1572 n = kvm_getswapinfo(kd, swapary, 1, 0);
1573 if (n < 0 || swapary[0].ksw_total == 0)
1577 pagesize = getpagesize();
1578 if (swap_maxpages == 0)
1579 GETSYSCTL("vm.swap_maxpages", swap_maxpages);
1581 /* ksw_total contains the total size of swap all devices which may
1582 exceed the maximum swap size allocatable in the system */
1583 if ( swapary[0].ksw_total > swap_maxpages )
1584 swapary[0].ksw_total = swap_maxpages;
1586 *retavail = CONVERT(swapary[0].ksw_total);
1587 *retfree = CONVERT(swapary[0].ksw_total - swapary[0].ksw_used);
1591 n = (int)(swapary[0].ksw_used * 100.0 / swapary[0].ksw_total);