---------------------------------------------------------------------- Date: Tue, 27 May 2014 13:34:20 +0200 From: Randy Wijnants <[email protected]>
> In addition to the LTTng architecture diagram, I've drawn a diagram that > shows the relation between the command line options and how to configure a > trace session. > I hope it proves to be useful, if you have any suggestions let me know! > > Originally posted on IRC. As suggested by Compudj i've released it under CC > license. > > http://tty32.org/Trace%20session.png > http://tty32.org/Trace%20session.svg > > Randy Wijnants. ---------------------------------------------------------------------- Neither the png nor svg versions line up correctly the text and coloured boxes with each other. This may be a local rendering issue. At least the svg version has a proper white background (my png renders with a very dark grey background, making it very hard to make out some of the text). However, the svg version is unusable because none of the text is text: everything is svg:path with opaque d attributes (this may explain the alignment problems). Here are improved (more accurate) expressions for the various command syntaxes: $ lttng create [NAME] [--ctrl-url URL --data-url URL | --output PATH | --set-url URL | --no-output] [--snapshot] (the ctrl-url etc. options are in pre-emption order) $ lttng enable-channel (-k | -u) [--session NAME] NAME[,NAME2,...] [--discard | --overwrite] [--subbuf-size SIZE] [--num-subbuf NUM] [--switch-timer USEC] [--read-timer USEC] \ [--output (mmap | splice)] [--buffers-uid | --buffers-pid | --buffers-global] [--tracefile-size SIZE [--tracefile-count COUNT]] $ lttng enable-event (-k | -u) [--session NAME] [--channel NAME] (--all [--tracepoint | --syscall] | \ NAME[,NAME2,...] [--tracepoint [(--loglevel | --loglevel-only) LOGLEVEL] [--filter 'EXPRESSION'] | (--probe | --function) (addr | symbol | symbol+offset)]) $ lttng add-context (-k | -u) [--session NAME] [--channel NAME] (--type TYPE)+ $ lttng list (-k | -u) (not the full syntax, but rather the syntax that will get just a list of event names) $ lttng add-context --help (the only one that doesn't change!) Change "Kernelspace specific" into "Kernel specific". Add footnotes: * --session NAME defaults to the current session * --channel NAME in the enable-event case defaults to 'channel0', but only if the domain is virgin * --channel NAME in the add-context case defaults to all channels Daniel U. Thibault Protection des systèmes et contremesures (PSC) | Systems Protection & Countermeasures (SPC) Cyber sécurité pour les missions essentielles (CME) | Mission Critical Cyber Security (MCCS) R & D pour la défense Canada - Valcartier (RDDC Valcartier) | Defence R&D Canada - Valcartier (DRDC Valcartier) 2459 route de la Bravoure Québec QC G3J 1X5 CANADA Vox : (418) 844-4000 x4245 Fax : (418) 844-4538 NAC : 918V QSDJ <http://www.travelgis.com/map.asp?addr=918V%20QSDJ> Gouvernement du Canada | Government of Canada <http://www.valcartier.drdc-rddc.gc.ca/> _______________________________________________ lttng-dev mailing list [email protected] http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
