Commit Graph

104 Commits

Author SHA1 Message Date
John Baldwin
a0b9e7e332 Update top and systat for vfs.bufcache now being a long rather than an int. 2009-03-10 15:25:19 +00:00
Rui Paulo
491c34ec7e Right align the CPU column header. 2008-12-26 11:11:30 +00:00
John Baldwin
b2ce972537 Make the CPU column in top always be 2 characters and print in decimal
rather than hex.

Requested by:	rwatson
2008-10-01 22:01:07 +00:00
Stephane E. Potvin
c975a48dee Display the sum of the runtime of all the threads in a process when it's
multithreaded instead of picking the time of the first thread found.

Reviewed by:	jhb
Approved by:	kan (mentor)
MFC after:	1 month
2008-09-12 17:54:50 +00:00
Ruslan Ermilov
d3bf3b9a7a system_info.cpustates isn't sparse, so a bitmask of available CPU states
is redundant (I think it's a leftover from an older implementation).
2008-04-11 11:39:26 +00:00
Ruslan Ermilov
3aaa083285 Allocate enough memory for pcpu_cp_time[] to stop sysctl() from
writing outside of array bounds.  This fully fixes -P display on
i386, where kern.cp_times prints zeroes for non-existing CPUs.
2008-04-11 11:34:09 +00:00
Ruslan Ermilov
f89db4357e Fix "top -P" (&' mistyped as &&' and a botched logic).
The bug was unnoticed on non-i386 because mp_maxid is
initialized differently, kern.cp_times doesn't print
zeroes for non-existing CPUs, so no "writing outside of
array bounds" happens.

MFC after:	3 days
2008-04-10 16:17:54 +00:00
Xin LI
2f487fe4e4 Use calloc() when requesting zero'ed memory allocation rather than rolling
our own.
2008-01-29 00:06:44 +00:00
Peter Wemm
031175705e Add a -P flag to display per-cpu cpu usage stats. 2008-01-18 01:43:14 +00:00
David E. O'Brien
dbb2956620 Improve -u (limit uid lookups) behavior.
Submitted by:	David Frascone <dave@frascone.com>
PR:		119490
2008-01-09 18:06:24 +00:00
Julian Elischer
7ab24ea3b9 Introduce a way to make pure kernal threads.
kthread_add() takes the same parameters as the old kthread_create()
plus a pointer to a process structure, and adds a kernel thread
to that process.

kproc_kthread_add() takes the parameters for kthread_add,
plus a process name and a pointer to a pointer to a process instead of just
a pointer, and if the proc * is NULL, it creates the process to the
specifications required, before adding the thread to it.

All other old kthread_xxx() calls return, but act on (struct thread *)
instead of (struct proc *). One reason to change the name is so that
any old kernel modules that are lying around and expect kthread_create()
to make a process will not just accidentally link.

fix top to show  kernel threads by their thread name in -SH mode
add a tdnam formatting option to ps to show thread names.

make all idle threads actual kthreads and put them into their own idled process.
make all interrupt threads kthreads and put them in an interd process
(mainly for aesthetic and accounting reasons)
rename proc 0 to be 'kernel' and it's swapper thread is now 'swapper'

man page fixes to follow.
2007-10-26 08:00:41 +00:00
Jeff Roberson
b61ce5b0e6 - Move all of the PS_ flags into either p_flag or td_flags.
- p_sflag was mostly protected by PROC_LOCK rather than the PROC_SLOCK or
   previously the sched_lock.  These bugs have existed for some time.
 - Allow swapout to try each thread in a process individually and then
   swapin the whole process if any of these fail.  This allows us to move
   most scheduler related swap flags into td_flags.
 - Keep ki_sflag for backwards compat but change all in source tools to
   use the new and more correct location of P_INMEM.

Reported by:	pho
Reviewed by:	attilio, kib
Approved by:	re (kensmith)
2007-09-17 05:31:39 +00:00
Ruslan Ermilov
06351b59c6 Inactive pages don't have to be dirty plus improve description of
the cache queue.

Submitted by:	alc
Approved by:	re (kensmith)
2007-09-02 10:29:16 +00:00
Ruslan Ermilov
d71e591b49 Fix the description of the "Cache" memory and clarify the
description of the "Inact" memory.  (They count pages in
the cache/inactive page queues, respectively.)

Approved by:	re (kensmith)
2007-09-01 05:52:39 +00:00
Bruce Evans
e19249f7a7 Third stage of unbreaking printing of pseudo-nice values (realtime
priorities, etc.) in the NICE field:

Use a combination of pri_native and pri_user instead of pri_level to
guess the original realtime priority.  Using pri_level here has been
wrong since 2001/02/12.  Using only pri_native here would be correct
if the kernel actually initialized it reasonably.  (The kernel exports
its raw td_base_priority as pri_native, but userland mostly wants a
refined base priority).  Give up on waiting pri_native to work correctly
and only use it when there is nothing better (for kthreads).

This should reduce printing of bizarre pseudo-nice values.  Bizarre
values are still printed if we observe a transient borrowed priority
for a kthread (transient borrowing is the main thing that makes the
raw td_base_priority almost useless in userland), or if there is a
kernel bug.  One current kernel bug involves the kernel idprio thread
pagezero permanently changing its priority from PRI_MAX_IDLE (255) to
PUSER (160).  Then the bizarre value "ki-6" is printed instead of
"ki31".  Here "-6" is PRI_MIN_IDLE - PUSER = -64 truncated to 2
characters.  We are observing a transient borrowed priority that has
become permanent due to a bug.

ps/print.c:priorityr() needs similar changes (including ones in stage 2
here).
2007-06-15 12:03:07 +00:00
Rong-En Fan
6000ced11b - Add a new 'j' switch and runtime option to toggle display jail id for
each process.
- While I'm here, keep help message sorted by keys

PR:		98489, 98975
Submitted by:	clsung
Approved by:	delphij (mentor)
MFC after:	2 weeks
2007-04-17 03:12:39 +00:00
Stanislav Sedov
faac60c8fc - Add new 'a' switch and runtime option that allows 'top' to display process
titles extracted from argv vector instead of the real executable names.
  This is useful when you want to watch applications that set their status
  information via setproctitle(3).

Approved by:	alfred
MFC after:	2 weeks
2007-04-14 10:16:52 +00:00
Giorgos Keramidas
d2d6d8d537 The sigconv.awk script generates a sigdesc.h header file, which
contains a sigdec[] vector of structures, but the generated output is
missing braces around the initializer of each struct, which
triggers warnings in WARNS=3:

src/usr.bin/top/sigdesc.h:10: warning: missing braces around initializer
src/usr.bin/top/sigdesc.h:10: warning: (near initialization for `sigdesc[0]')

  * Fix the sigconv.awk script to generate a header with initializers
    which look better.

  * Add rules to usr.bin/top/Makefile that rebuilds a new sigconv.h
    header which matches the correct signal set from the build-time
    version of `${DESTDIR}/usr/include/signal.h' (so sigconv.h doesn't
    get stale once changes are made to the header).

  * Remove the old sigconv.h header, now that it is autoupdated at
    build time.

  * Various Makefile style fixes (the committed Makefile was kindly
    submitted by Ruslan):

    - Reorder .PATH, PROG, SRCS and CFLAGS to match style.Makefile(5)
    - Split off the generated sources (sigdesc.h top.local.h) in an
      SRCS+= line of their own.
    - Add entries to CLEANFILES near the rules that generate the
      respective files.
    - Move the explicit rule which builds top.1 after the implicit
      rules which generate its dependencies.

Reviewed by:	ru, bde
Submitted by:	ru (Makefile)
MFC after:	2 weeks
2006-12-01 07:01:19 +00:00
Bruce Evans
8dbbff5b81 Second stage of unbreaking thr formatting of the NICE field: decode the
priority class and use this to:

- print "-" instead of a garbage value for ithreads.  Print "-" instead
  of the unused nice value for kthreads which are (mis)classified as
  PRI_TIMESHARE.  For such threads, the nice value can be set to nonzero
  by root, but it is never used (at least by the 4bsd scheduler).  For
  ithreads, we didn't even print the unused value.

- print "i<priority>" and "r<priority>" instead of a biased "<priority>"
  for idletime and realtime threads,  Here <priority> is the priority
  parameter to idprio/rtprio(1).  Just add the prefix and remove the
  bias for now.  <priority> has been stored indirectly in the kernel
  since 2001/02/12, and even the kernel cannot recover the original
  value in all cases.  Here we need to handle more cases than pri_to_rtp(),
  but actually handle fewer cases, and end up printing garbage after
  a thread changes its current priority while in the kernel.

- for idletime and realtime threads, if they are kthreads then add a prefix
  of "k" to the previous string.

- for idletime and realtime threads, if they in the FIFO scheduling class
  then add a suffix of "F" to the previous string (if it fits; the other
  parts of the string are sure to fit unless <priority> is garbage).
2006-11-07 10:03:10 +00:00
Stefan Eßer
d1b76f3f6e Fix display of idle processes, which had been broken since rev. 1.56 of
machine.c. The traditional condition was (pctcpu > 0 || SRUN), but the
negation of the condition logic (from select to skip) made this come
out as (pctcpu > 0 && SRUN), leading to a very erratic display, except
for purely CPU bound processes.

This has been discussed in the mail lists some time ago and I have used
top with this patch on my systems for more than a year without problems
(just forgot to commit it earlier, since my systems were all fixed ...).
2006-06-11 19:18:39 +00:00
Bruce Evans
de916c8b74 Move the formatting of the NICE column to a new function format_nice()
so that it can be more easily unbroken and extended.

Try to use `static', `const' (as appropriate), prototypes declared together,
and parameter names in prototypes for all private functions, not just the
new one.
2006-05-04 03:56:31 +00:00
Bruce Evans
789e38771b Fixed some style bugs (mainly missing and wrong splitting of long lines). 2006-05-04 03:00:13 +00:00
Giorgos Keramidas
58ea49c98e (1) Revert unnecessary indentation changes I committed as part of the
last version and (2) remove a disabled debugging fprintf() that I
accidentally committed here.

Noticed by:	simon (2)
2005-05-18 13:42:51 +00:00
Giorgos Keramidas
bbf750fbff Merge the CPU and WCPU columns in a single %6.2f column, add a new 'C'
command that toggles between the two and update the ORDER_PCTCPU()
macro to sort correctly by the visible "cpu" value.

This saves 6 more columns in 80-column terminals, making things a lot
better for the COMMAND column.

Tested on:	i386, sparc64 (panther), amd64 (sledge)
Approved by:	davidxu (in principle)
2005-05-18 13:30:08 +00:00
David E. O'Brien
c413702af3 Hardcode username to 8 characters. This makes top(1) output sane when
there are users on the system (even if not running a single process)
with a login > 8 chars.
I'm not all that happy limiting the username width like this, but it
restores sanity to top(1) output.

Discussed with:	keramida
2005-05-16 18:17:38 +00:00
Giorgos Keramidas
5970af4cd4 Reduce the width of the THR column to 4 characters, to avoid wrap-around
of lines in SMP machines (which are wider), until we have a better way
of handling window sizes & columns in top.

Caught by:	ache, Andre Guibert de Bruet <andy@siliconlandmark.com>
Point hat:	keramida
2005-04-16 15:43:38 +00:00
Giorgos Keramidas
32efd26355 - Add a THR column to the process listing, that shows the number of
threads a process has.  The THR column is disabled and disappears
  when 'H' is hit, because then every thread gets its own output line.
- Allow sorting processes by "threads".

Approved by:	davidxu
Inspired by:	Jiawei Ye <leafy7382@gmail.com>
2005-04-14 15:02:03 +00:00
Stefan Farfeleder
426494536e Include <string.h> and <strings.h> for various functions. 2005-04-04 21:19:48 +00:00
Alfred Perlstein
5d320d4b95 This patch merges the sort fields for both pages, so you can (for
example) view io stats while sorting by process size.  Also adds
voluntary and involuntary context-switch stats to the io page because
there was lots of room.

Submitted by: Dan Nelson dnelson at allantgroup.com
2004-08-16 07:51:22 +00:00
Alfred Perlstein
dcd6f4bd48 Comment some of the 'io' functions. 2004-08-01 09:19:41 +00:00
Dag-Erling Smørgrav
9b30d69710 Adjust the show_self code (the test got inadvertantly reversed a couple of
revisions ago)

Submitted by:	Alex Vasylenko <lxv@omut.org>
2004-07-12 08:22:32 +00:00
Alfred Perlstein
98c151d6d9 Cache a pointer to the old proc (as well as negative cache) to make
computing the io statistics over and over not as expensive.
This is a bit of a cop out, as I should just allocate a struct with
the computed values, but this will do for now.
2004-07-12 04:55:07 +00:00
Giorgos Keramidas
26b2243ae7 Build upon the nice work of Alfred and add sorting capabilities to
the -m "io" mode of top.

Approved by:	alfred
2004-07-08 16:45:55 +00:00
Dag-Erling Smørgrav
e38035a512 Additional preemptive unsigned -> signed casts. 2004-07-05 14:55:58 +00:00
Dag-Erling Smørgrav
f92a11552e ki_pctcpu is unsigned, so we cast to long before subtracting. 2004-07-05 14:52:06 +00:00
Dag-Erling Smørgrav
4946a00b0b Unhealthy amount of manual code cleanup. Some long lines still remain. 2004-07-05 14:45:57 +00:00
Dag-Erling Smørgrav
ea9e70bf68 Apply consistent indentation. Long lines will be fixed in a separate
commit.
2004-07-05 13:12:16 +00:00
Dag-Erling Smørgrav
f6a10fea63 Protoize. 2004-07-05 13:03:35 +00:00
Dag-Erling Smørgrav
cd23263cdd Sort out the #include mess. In particular, do not #include "os.h", since
all it does is provide broken prototypes for standard library functions.
2004-07-05 12:58:47 +00:00
Dag-Erling Smørgrav
1ce57ca079 Mechanical whitespace cleanup. 2004-07-05 12:51:35 +00:00
Dag-Erling Smørgrav
d62a717dae My previous commit fixed uid filtering, but broke io mode. Unravel the
process filtering logic to prevent this from happening again.
2004-07-05 12:48:17 +00:00
Dag-Erling Smørgrav
a578eed9af Fix selecting processes by uid, which was broken in the previous commit. 2004-07-05 12:22:50 +00:00
Alfred Perlstein
7fe9a86a5a Tell what percentage of the total IO a process is doing.
TODO: Show system totals.
2004-07-01 15:49:28 +00:00
Alfred Perlstein
db6bb7fc01 New feature, provide a display that shows the amount of IO processes
are doing.  Toggle this mode by hitting "m" or passing the command line
option "-m io" to top(1).  This allows one to identify disk bandwidth
hogs much easier.
2004-07-01 09:12:38 +00:00
Alfred Perlstein
970636e94f style, remove register. 2004-06-30 04:19:23 +00:00
Brian Feldman
cac4b14c12 Do not use KERN_PROC_PROC with kvm_getproc(3); instead, if only process
(and not thread) scope is to be displayed, use KERN_PROC_ALL and
accrue CPU% ourselves, as the kernel makes no attempt to do so.

Of course, this doesn't make most stats any less bogus when displaying
threaded processes, but at least the CPU time is added up and not just
always 0.00%.  There are still issues with SCHED_ULE in top(1) that
cause other processes to display 0.00% CPU when they in fact have used
more.
2004-06-06 19:59:06 +00:00
Julian Elischer
e27d79bb28 Changes to allow top to decide whether or not to show multiple threads per
process. Option -H enables it and it is toggled at the interactive
screen by 'H'.

Submitted by:	Jung-uk Kim <jkim@niksun.com>
2003-07-17 23:56:40 +00:00
Poul-Henning Kamp
f341ca9891 Remove #include <sys/dkstat.h> 2003-02-16 14:13:23 +00:00
John Baldwin
0d6326492b Catch up to SMTX -> SLOCK changes. 2002-10-02 20:33:52 +00:00
Philippe Charnier
93b0017f88 Replace various spelling with FALLTHROUGH which is lint()able 2002-08-25 13:23:09 +00:00