Running through all the questions on profiling tools, I was surprised to discover VTune by Intel that I hadn't heard of before. At $700, it is even more expensive than AQTime. But before I make th...

I am using Intel(R) VTune(TM) Amplifier XE 2013 Update 5 (build 274450) for my linux application hotspot collect， but the report says the "[Outside any known module]" consume most of the time, so i...

Total Time spent by a function in an application can be broadly divided in to two components: Time spent on actual computation (Tcomp) Time spent on memory accesses (Tmem) Typically profilers p...

Continuing on from my first question, I am trying to optimize a memory hotspot found via VTune profiling a 64-bit C program. In particular, I'd like to find the fastest way to test if a 128-byte b...

I am running a program on both Windows and Linux (x86-64). It has been compiled with the same compiler (Intel Parallel Studio XE 2017) with the same options, and the Windows version is 3 times fast...

Edit 3: The images are links to the full-size versions. Sorry for the pictures-of-text, but the graphs would be hard to copy/paste into a text table. I have the following VTune profile for a pro...

I have a routine that performs a few MKL calls on small matrices (50-100 x 1000 elements) to fit a model, which I then call for different models. In pseudo-code: double doModelFit(int model, ...) ...

I wrote a multi-thread program with pthread, using the producer-consumer model. When I use Intel VTune profiler to profile my program, I found the producer and consumer spend lots of time on pthr...

I am trying to optimize this code. static lvh_distance levenshtein_distance( const std::string & s1, const std::string & s2 ) { const size_t len1 = s1.size(), len2 = s2.size(); std::vect...

I want to optimize my code which is written in c++ on linux platform.For that i am using Intel VTune Performance Analyzer Profiler .When i am identifying Hotspots , it successfully runs the binary ...

I have a profiling issue - imagine I have the following code... void main() { well_written_function(); badly_written_function(); } void well_written_function() { for (a small number) { highly...

I'm currently developing a C-module for a Java-application that needs some performance improvements (see Improving performance of network coding-encoding for a background). I've tried to optimize t...