A script to plot latency histograms (1,2,5 bins):
http://www.panix.com/~dgarrett/stuff/lhisto.tcl
It uses the aforementioned lhisto.comp:
http://www.panix.com/~dgarrett/stuff/lhisto.comp
To use it:
$ comp --install lhisto.comp
$ chmod 755 lhisto.tcl
$ ./lhisto.tcl ;# to use with defaults
$ ./lhisto.tcl --help ;# for usage
Usage:
lhisto.tcl --help | -? (this)
or
lhisto.tcl [Options]
Options:
-b nS (base thread interval, default: 25000)
-s nS (servo thread interval, default: 1000000)
--base nS (bin tmin for base thread, default: 1000)
--servo nS (bin tmin for servo thread, default: 1000)
-l 0|1 (y axis log scale, default: 1)
-t txt (title note, default: "" )
To place final results in a file:
$ ./lhisto.tcl >result.txt
Screenshots:
http://www.panix.com/~dgarrett/stuff/lhisto_xenomai.png (sl510)
http://www.panix.com/~dgarrett/stuff/lhisto_posix.png (sl510)
http://www.panix.com/~dgarrett/stuff/lhisto_rtai.png (different computer)
Notes:
Latency time bins are in 1,2,5 sequence over 5 decades
Y axis is displayed on log scale by default
--
Dewey Garrett
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