python (12.9k questions)

javascript (9.2k questions)

reactjs (4.7k questions)

java (4.2k questions)

java (4.2k questions)

c# (3.5k questions)

c# (3.5k questions)

html (3.3k questions)

Questions - cpu-cache

Where should I expect the Cache to be refilled? C

I just recently found out about cache misses, specifically when I was designing matrix multiplications. Having this tiled code that multiplies a matrix and a vector: void aiMatMulVec_raw(const mFloat ...
test-img

GuillemVS

c

matrix

cpu-cache

Votes: 0

Answers: 0

Synchronizing caches for JIT/self-modifying code on ARM

The general, more abstract procedure for writing and later executing JIT or self-modifying code is, to my understanding, something like the following. Write the generated code, make sure it's flushed...
test-img

Mona the Monad

assembly

arm64

cpu-cache

memory-barriers

self-modifying

Votes: 0

Answers: 1

Latest Answer

(Disclaimer: this answer is based on reading specs and some tests, but not on previous experience.) First of all, there is an explanation and example code for this exact case (one core writes code for...
test-img

Nate Eldredge

What constitutes a read or write to memory/cache in x86 assembly, according to valgrind?

I am looking into why some compiled Pascal code is slower than other languages/compilers for a simple test case. I believe it has to do with the preference of the FreePascal x86 compiler to use memory...
test-img

mDiPalma

assembly

x86

valgrind

pascal

cpu-cache

Votes: 0

Answers: 1

Latest Answer

Compile with Valgrind debugging information: fpc -gv xorshifts.pas Collect some data: valgrind --tool=cachegrind --branch-sim=yes ./xorshifts & \ sleep 2 && kill $! Examine line-b...
test-img

Kai Burghardt

Posts

Questions

Blogs

Jobs