BeeOnRope

BeeOnRope has asked 293 questions and find answers to 281 problems.

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Performance Matters

BeeOnRope questions

Emplacement-like construction for std::vector
Randomized testing in Java
Using the perf events from perf list programatically
Define an assert which is effective even if NDEBUG is defined
Efficiently dividing unsigned value by a power of two, rounding up
What's up with gcc's handling of alloca?
Does clflush also remove TLB entries?
Pattern to initialize base class in derived class constructor (or factory)
Running operations in parallel while preserving in-order, incremental output
Is it allowed to overload operator+ for a standard library type and a built-in type?

BeeOnRope answers

tryLock() in a loop?
Fastest way to set a single memory cell to zero or a constant in x86 assembly?
How do I calculate memory bandwidth on a given (Linux) system, from the shell?
Intel FMA Instructions Offer Zero Performance Advantage
Is there a standard constant *nix benchmark, and if not, how to make a `bogobench`?
Deadlock caused by creating a new thread during class initialization
Why are there too many demand rfo offcore responses /offcore requests?
Least intrusive compile barrier for Java on x86
Is this memory barrier implemented correctly?
I want to pack the bits based on arbitrary mask