caching - How do cache lines work? - Stack Overflow
I understand that the processor brings data into the cache via cache lines, which - for instance, on my Atom processor - brings in about 64 bytes at a time, whatever the size of the actual data …
What does it mean for code to be "cache-friendly"?
May 23, 2013 · Main concepts for cache-friendly code A very important aspect of cache-friendly code is all about the principle of locality, the goal of which is to place related data close in …
What is CPU Cache and why is it so important? : r/buildapc - Reddit
That is exactly what modern CPUs do. Many CPUs will have L1, L2, and L3 cache, with L1 being the fastest but smallest, and L3 being the largest but slowest. L1 cache is usually further split …
How to flush the CPU cache for a region of address space in Linux?
Mar 28, 2014 · I am interested in flushing cache (L1, L2, and L3) only for a region of address space, for example all cache entries from address A to address B. Is there a mechanism to do …
How are cache memories shared in multicore Intel CPUs?
Jun 3, 2009 · I have a few questions regarding Cache memories used in Multicore CPUs or Multiprocessor systems. (Although not directly related to programming, it has many …
CPU cache invalidation control from application - clear cache store ...
May 22, 2025 · Current limitation of cache (invalidation) control make 32/64bit address space not very usable if for high-performance computing we must use only a small cache-sized virtual …
CPU Cache: what does it do, how does it work, and how can I
Jun 12, 2021 · On the cpu cache issue, try making a large 2d array of equal width and height. Write a for loop within a for loop to increment every value in the array and time how long it takes.
How can I do a CPU cache flush in x86 Windows? - Stack Overflow
Nov 8, 2015 · I am interested in forcing a CPU cache flush in Windows (for benchmarking reasons, I want to emulate starting with no data in CPU cache), preferably a basic C …
How does one write code that best utilizes the CPU cache to …
Apr 18, 2009 · The cache is there to reduce the number of times the CPU would stall waiting for a memory request to be fulfilled (avoiding the memory latency), and as a second effect, possibly …
What is meant by data cache and instruction cache?
From here: Instructions and data have different access patterns, and access different regions of memory. Thus, having the same cache for both instructions and data may not always work out.