Patches

[Jean-Marc Lasgouttes]

Le 11/11/2020 à 19:06, Richard Kimberly Heck a écrit :
> On 11/11/20 7:00 AM, Yuriy Skalko wrote:
>>>     My profiling results are in attached SVG. I've done scrolling 
>>> through some of the manuals during profiled run.
>>>
>>> What profiler did you use?
>>>
>>> I tried to look again at the code, but could not find the code that I 
>>> believed to create a nested loop and thus quadratic behavior.
>>
>> It was gprof. Seems like now the most time spent in recursive calls to 
>> itself.
> 
> That's probably what JMarc say before, too.

Concerning gprof: please note that it does not take into account the 
code that is not instrumented, like Qt, the kernel and maybe parts of 
the c++ standard library.

I tend to use perf on linux instead (especially through hotspot, with 
its awesome flamegraph feature).

Often I only use my crude pmprof.h (in src/support) to instrument some 
methods by hand.

JMarc