Use this tag to ask questions about Intel® VTune™ Profiler, which is an advanced performance profiler to find and optimize performance bottlenecks across CPU, GPU, and FPGA systems.
Questions tagged [vtune]
140 questions
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2 answers
Vtune analyzer with mingw
I am using MinGW for the 64 bit platform to compile a simple c++ test application:
g++ -g3 -c test.cpp
g++ test.o -o test
With the -g3 flag test.exe should now contain all necessary symbol information for profiling it... is this correct?
When I…
Constantin
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- 5
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1 answer
multilevel SSH connection with VTune Amplifier
How can I connect to multi-level remote host using Intel V-Tune Amplifier.
I have two host (Host1 and Host2). I can login to Host2 only via Host1 (as there are security involved to restrict direct connection to Host2).
Intel V-Tune Profiler provides…
user2008585
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- 6
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1 answer
Advanced hotspots analysis by Intel Vtune Amplifier XE2016 of a VS2015 console application not working
When executing the Intel "Advanced Hotspots, stacks and context switches analysis" (or higher) of my simple (a few lines) VS2015 console C++ (native) application, its processing hangs and Windows restart is needed, see the sample solution and screen…
user1969843
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1 answer
Poor time utilization shown by vtune but the issue is unknown
Analyzing a packet processing application with Intel Vtune.
Poor time utilization in just this instruction
add $0x100, %r8 (7%)
Poor time utilization in a single if check
if(unlikely(VALUE == some_value)
This some_value is uint16_t and is passed…
Hooli
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1 answer
_kmp huge overhead and spin time for unkown calls in OpenMP?
I'm using Intel VTune to analyze my parallel application.
As you can see, there is an huge Spin Time at the beginning of the application (represented as the orange section on the left side):
It's more than 28% of the application durations (which is…
cplusplusuberalles
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