Gabriel Southern

Gabriel Southern has asked 31 questions and find answers to 36 problems.

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About

Computer architect focused on performance analysis. Engineer at Qualcomm. PhD UC Santa Cruz.

Gabriel Southern questions

DirectX in Windows 8 SDK
Difference between volatile and __volatile__
CMake follow symbolic links during install
What are site-packages in python and can you install/use them if you aren't root?
What is <built-in> in C++ preprocessor output?
How to replace llvm-ld with clang?
Does perf lock profile user space mutexes?
Understanding glibc source code conventions
How is the size of a C++ class determined?
Optimization levels in LLVM and Clang

Gabriel Southern answers

How many page tables do Intel x86-64 CPUs access to translate virtual memory?
-O2 optimizes printf("%s\n", str) to puts(str)
How many bytes does a Xeon bring into the cache per memory access?
gcc simple arithmetics loop performance
How to set pthread max stack size
What is the performance impact of virtual memory relative to direct mapped memory?
gdb disassemble one line
atomic compare(not equal) and swap
Even faster inexpensive thread-safe counter?
Memory Data Register (MDR) vs Memory Buffer Register (MBR)