Profiling - Revision history

Timo 6: Formatting style updates

2012-08-27T16:22:29Z

Formatting style updates

Timo 6: 3 revisions: Import from old wiki (on 15 May 2012)

2012-08-26T17:25:17Z

3 revisions: Import from old wiki (on 15 May 2012)

New page

There are two profiling methods used to evaluate performance of VDrift code. VDrift provides its own in-game profiling system, or it may produce output suitable for the GNU gprof profiler.

==In-game Profiling==
When VDrift is run with the <code>-profiling</code> command-line option, certain parts of the game code (determined by the developers and hard-coded in the source) are evaluated as the game runs.

vdrift -profiling

During execution, each profiled subsystem of the game is listed along the left side of the game window, along with the amount of time spent on that subsystem during the last tick. After VDrift exits, summarized profiling information is output to the '''stdout''' stream, including the percentage of time spent in each subsystem.

==Profiling with gprof==
When VDrift is [[Compiling|compiled]] with the '''profiling''' [[Using SCons|option]] enabled, it produces output suitable for examination with the gprof tool.

Compiling with the '''profiling''' option enabled:

scons profiling=1

Run VDrift:

build/vdrift

After exiting, run gprof on the executable:

gprof build/vdrift

[[Category:Development]]

Timo 6: Added to expand and development categories.

2010-12-24T20:31:31Z

Added to expand and development categories.

Venzon: New page: VDrift uses the GNU profiler, gprof. To use it, recompile VDrift with "scons profiling=1", then run the VDrift executable and perform activities that you'd like to profile. After exiting, ...

2010-12-24T17:27:19Z

New page: VDrift uses the GNU profiler, gprof. To use it, recompile VDrift with "scons profiling=1", then run the VDrift executable and perform activities that you'd like to profile. After exiting, ...

New page

VDrift uses the GNU profiler, gprof. To use it, recompile VDrift with "scons profiling=1", then run the VDrift executable and perform activities that you'd like to profile. After exiting, simply run gprof on the executable.

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	VDrift uses the GNU profiler, gprof. To use it, recompile VDrift with "scons profiling=1", then run the VDrift executable and perform activities that you'd like to profile. After exiting, simply run gprof on the executable.		VDrift uses the GNU profiler, gprof. To use it, recompile VDrift with "scons profiling=1", then run the VDrift executable and perform activities that you'd like to profile. After exiting, simply run gprof on the executable.
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 ==In-game Profiling==
 When VDrift is run with the <code>-profiling</code> command-line option, certain parts of the game code (determined by the developers and hard-coded in the source) are evaluated as the game runs.
   vdrift -profiling
 During execution, each profiled subsystem of the game is listed along the left side of the game window, along with the amount of time spent on that subsystem during the last tick. After VDrift exits, summarized profiling information is output to the '''stdout''' stream, including the percentage of time spent in each subsystem.
@@ Line 12: / Line 10: @@
 Compiling with the '''profiling''' option enabled:
   scons profiling=1
 Run VDrift:
   build/vdrift
 After exiting, run gprof on the executable:
   gprof build/vdrift
 [[Category:Development]]