Questions tagged [qcachegrind]
6 questions
4
votes
1 answer
How to understand qcachegrind results?
I trying to profile my php app but cant understand indicators in qcachegrind. followed screenshot:
its function calls of course. but what means columns incl. and self ? how should i recognize here that some method is need to refactor ?
webcitron
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3
votes
1 answer
Getting QCacheGrind to display Call Graph
I'm trying to analyze some code using QCacheGrind. I am using it under Anaconda3 (64-bit) on Windows 10. To get things going, as a test, I'm profiling a small piece of code from "Advanced Python Programming" by Lanaro, Nguyen, and Kasampalis (page…
Pat B.
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2
votes
1 answer
qcachegrind error: Unknown file format. File generated from php xdebug
I am attempting to use xdebug to profile an application written in php7.
I've written a script that sets the follow ini settings:
ini_set('xdebug.trace_format',1); // Note: I tried 0 and 2 here as…
johncorser
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1
vote
0 answers
Running QCacheGrind on MacOS with graphs
I installed QCacheGrind with homebrew successfully:
brew install qcachegrind
When I open QCacheGrind app on the tab "Call Graph" I am getting the error:
No graph available because the layouting process failed. Try to run the following command did…
tasmaniski
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0
votes
1 answer
One-pass algorithm (clarification needed) Why the space complexity is O(1)?
From en.wikipedia:
A one-pass algorithm generally requires O(n) (see 'big O' notation) time and less than O(n) storage (typically O(1)), where n is the size of the input.
I made a test with xdebug.profiler_enable=1:
function onePassAlgorithm(array…
cofirazak
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0
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0 answers
QCachegrind is not displaying any data for php profiling, Configuration issue may be
I have installed the xdebug , and qCachegrind, which is the windows ver of KCachegrind.. but could not see any profiling data on this interface.
May be i am unable to configure it correctly.
Let me tell you that , i have installed Xdebug already ,…
captain_a
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