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Commit Graph

19 Commits

Author SHA1 Message Date
Karel Zak
c358d728e7 bootchart: don't parse /proc/uptime, use CLOCK_BOOTTIME
* systemd-bootchart always parses /proc/uptime, although the
  information is unnecessary when --rel specified

* use /proc/uptime is overkill, since Linux 2.6.39 we have
  clock_gettime(CLOCK_BOOTTIME, ...). The backend on kernel side is
  get_monotonic_boottime() in both cases.

* main() uses "if (graph_start <= 0.0)" to detect that /proc is
  available.

  This is fragile solution as graph_start is always smaller than zero
  on all systems after suspend/resume (e.g. laptops), because in this
  case the system uptime includes suspend time and uptime is always
  greater number than monotonic time. For example right now difference
  between uptime and monotonic time is 37 hours on my laptop.

  Note that main() calls log_uptime() (to parse /proc/uptime) for each
  sample when it believes that /proc is not available. So on my laptop
  systemd-boochars spends all live with /proc/uptime parsing +
  nanosleep(), try

    strace  /usr/lib/systemd/systemd-bootchart

  to see the never ending loop.

  This patch uses access("/proc/vmstat", F_OK) to detect procfs.
2014-08-03 01:12:53 -04:00
Zbigniew Jędrzejewski-Szmek
5aded36978 man: add a mapping for external manpages
It is annoying when we have dead links on fd.o.

Add project='man-pages|die-net|archlinux' to <citerefentry>-ies.

In generated html, add external links to
http://man7.org/linux/man-pages/man, http://linux.die.net/man/,
https://www.archlinux.org/.

By default, pages in sections 2 and 4 go to man7, since Michael
Kerrisk is the autorative source on kernel related stuff.

The rest of links goes to linux.die.net, because they have the
manpages.

Except for the pacman stuff, since it seems to be only available from
archlinux.org.

Poor gummiboot gets no link, because gummitboot(8) ain't to be found
on the net. According to common wisdom, that would mean that it does
not exist. But I have seen Kay using it, so I know it does, and
deserves to be found. Can somebody be nice and put it up somewhere?
2014-07-07 18:36:55 -04:00
WaLyong Cho
49e5b2a933 bootchart: add control group option 2014-04-24 19:21:51 -04:00
Zachary Cook
82ed60080d man: systemd-bootchart - fix spacing in command
Use the same formatting as the systemd-analyze man page, so that man shows a space.
2014-03-06 12:41:50 -08:00
Zbigniew Jędrzejewski-Szmek
dfdebb1b92 man: xinclude --help/--version/--no-pager 2014-02-20 22:43:27 -05:00
Jan Engelhardt
fbce11397f man: wording and grammar updates
This includes regularly-submitted corrections to comma setting and
orthographical mishaps that appeared in man/ in recent commits.
2013-07-21 11:23:58 -04:00
Nathaniel Chen
8368868452 Add help option to bootchart man page
Bootchart has a help option. For the sake of consistency, this patch
adds it to the man page.

Also, the TODO is updated. Bootcharts were added to the journal in
commit c4d58b0.
2013-05-02 09:21:23 -07:00
Zbigniew Jędrzejewski-Szmek
e7ecdfc15c sd-messages.h: add new bootchart message id 2013-04-17 00:09:16 -04:00
Harald Hoyer
78da2cd926 bootchart: document -C, --cmdline parameter 2013-03-07 16:19:38 +01:00
William Giokas
1e447e0a3c man: Add reason for disk model info not working
In systemd-bootchart, the disk model information will not be found
unless the root device is specified using `root=/dev/sdxY` on the kernel
line. Just add a note as to why this doesn't happen.
2013-02-17 14:46:22 -08:00
Zbigniew Jędrzejewski-Szmek
6d26799179 bootchart: rename --filter to --no-filter
Turning off filtering with --filter is just too confusing.
Config option "Filter" doesn't have to be changed, here
"Filter=yes" already meant to filter.
2013-02-16 15:16:24 -05:00
Zbigniew Jędrzejewski-Szmek
f1c24fea94 man: move bootchart README to manpage, docbooksify 2013-02-16 15:10:40 -05:00
William Giokas
c3fec6715d man: Add even more to the bootchart man page
Essentially transfer the 'README' file in src/bootchart to the man page
for easier reading by users.

Moved the 'History' section to the bottom, before the 'See Also' section.

 man/systemd-bootchart.xml | 100 ++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 83 insertions(+), 17 deletions(-)
2013-02-14 12:20:46 -08:00
William Giokas
895aeb2779 man: bootchart: change /var/log to /run/log
As of [1], bootchart stores files in /run/log, not /var/log, by default.

[1] f2f85884ca
2013-02-13 15:26:55 -08:00
William Giokas
5797606612 man: Write man page for systemd-bootchart(1)
Mostly coppied from bootchart.conf(5)
2013-02-13 08:57:15 -05:00
Zbigniew Jędrzejewski-Szmek
56ba3c78ae build-sys: create Makefile-man.am automatically
man rules were repeating the same information in too many places,
which was error prone. Those rules can be easily generated from .xml
files. For efficiency and because python is not a required dependency,
Makefile-man.am is only regenerated when requested with

  make update-man-list

If no metadata in man/*.xml changed, this file should not change. So
only when a new man page or a new alias is added, this file should
show up in 'git diff'. The change should then be committed.

If the support for building from git without python was dropped, we
could drop Makefile-man.am from version control. This would also
increase the partial build time (since more stuff would be rebuild
whenever sources in man/*.xml would be modified), so it would probably
wouldn't be worth it.
2013-02-06 23:16:16 -05:00
Zbigniew Jędrzejewski-Szmek
ccc9a4f9ff man: extend systemd.directives(7) to all manual pages
New sections are added: PAM options, crypttab options, commandline
options, miscellaneous. The last category will be used for all
untagged <varname> elements.

Commandline options sections is meant to be a developer tool: when
adding an option it is sometimes useful to be able to check if
similarly named options exist elsewhere.
2013-01-26 11:36:53 -05:00
Thomas Hindoe Paaboel Andersen
1959c6ce94 man/systemd-bootchart.xml: fix typo 2013-01-09 21:25:02 +01:00
Auke Kok
83fdc450aa bootchart: merge bootchart
Bootchart is renamed to 'systemd-bootchart' and installed as
/usr/lib/systemd/systemd-bootchart. The configuration file
will reside in /etc/systemd/bootchart.conf.
2013-01-07 23:48:43 +01:00