While I am not familiar with Haskell daemon itself, answering your question “how it’d be possible to more effectively pinpoint such a leak”, it might be possible to use valgrind –leak-check=yes haskelldaemon (better if you compile it with debug info), OR, if the leak happens in shared library, try LD_PRELOAD=”yourlibrary.so” valgrind your-executable.
Well as CLOCK_THREAD_CPUTIME_ID is implemented using rdtsc it will likely suffer from the same problems as it. The manual page for clock_gettime says: The CLOCK_PROCESS_CPUTIME_ID and CLOCK_THREAD_CPUTIME_ID clocks are realized on many platforms using timers from the CPUs (TSC on i386, AR.ITC on Itanium). These registers may differ between CPUs and as a consequence these … Read more
Private bytes reflect the process’ memory usage. When objects are collected the associated memory segment may or may not be freed to the OS. The CLR manages memory at the OS level and since allocating and freeing memory isn’t free there’s no reason to free each piece of memory immediately as chances are that the … Read more
I have compiled kcachegrind on windows using QT4.7, here is the binary bundle (including the dot utility to generate call graph): http://sourceforge.net/projects/precompiledbin/files/kcachegrind.zip/download
The CSS property will-change: transform on all elements needing a repaint solved the problem with too many Composite Layers for me.
If you bring up the “Test View” window you can right click on the test you want to profile and choose “Create Performance Session…”
A benchmark is something that measures the time for some whole operation. e.g. I/O operations per second under some workload. So the result is typically a single number, in either seconds or operations per second. Or a data set with results for different parameters, so you can graph it. You might use a benchmark to … Read more
Robert Bradshaw helped me to get Robert Kern’s line_profiler tool working for cdef functions and I thought I’d share the results on stackoverflow. In short, set up a regular .pyx file and build script and add the following before your call to cythonize. # Thanks to @tryptofame for proposing an updated snippet from Cython.Compiler.Options import … Read more