BeeOnRope

BeeOnRope has asked 315 questions and find answers to 299 problems.

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Performance Matters

BeeOnRope questions

Can clang be convinced to optimize this almost-leaf function
Is there any way to redirect the output of native JVM output like -XX:+PrintCompilation
SIMD transpose when row size is greater than vector width
Portable way to find name of main class from Java code
How does the kernel-side page cache virt <-> phys mapping interact with the TLB?
Determine TSC frequency on Linux
Can MSVC with link-time codegen optimize across C and C++?
Is it allowed to assign from an object that has some indeterminate values?
Replace leading whitespace with sed (or similar)
Given a pointer to a structure, can I assign the structure the result of an aggregate-initializer in one line?

BeeOnRope answers

Can value of RDX in main be depended upon when linking assembly app against glibc
C++ function name too long for perf
Design options for references into a thread safe cache when evicting older entries
File I/O performance is too good to be true?
Why do align access and non-align access have same performance?
Actual difference between data compression and data deduplication
Acquire/Release VS Sequential Consistency in C++11？
Precise measurements of maximum cycle count with RDTSC
Pythonic way to accept a tuple in a JSON argument
Thread-safe find and remove an object from a Collection