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Man Pages


Manual Reference Pages  -  VIPSPROFILE (1)

NAME

vipsprofile - analyze vips profiles

CONTENTS

Synopsis
Description
Return Value
See Also

SYNOPSIS

vipsprofile

DESCRIPTION

vipsprofile(1) analyzes the file written by the --vips-profile option, calculates some statistics, and draws a graph of evaluation.

Run any vips program with the --vips-profile option to generate a file called "vips-profile.txt". This contains timing information about CPU use, memory use and thread synchronisation.

Run vipsprofile(1) to load this file, calculate some statistics, and draw a graph of evaluation saved to vips-profile.svg. This analysis can help track down performance problems.

For example:

$ vips sharpen shark.jpg x.jpg --vips-profile
recording profile in vips-profile.txt
$ vipsprofile
reading from vips-profile.txt
loaded 3622 events
total time = 0.138322
name alive wait% work% unkn% memory peakm
worker 20 0.069 34.5 58.9 6.65 3.14 5.56
worker 21 0.07 1.36 60.2 38.4 2.65 5.07
worker 22 0.07 33 55.8 11.1 2.62 5.04
worker 23 0.072 34.2 59.7 6.15 2.72 5.14
wbuffer 24 0.075 99 1.03 0.00401 0 0
wbuffer 25 0.075 95.6 4.39 0.00667 0 0
main 26 0.14 52.8 0 47.2 -11.1 0.787
peak memory = 21.6 MB
writing to vips-profile.svg

RETURN VALUE

returns 0 on success and non-zero on error.

SEE ALSO

vips(1)
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--> VIPSPROFILE (1) 13 December 2013

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