May 22, 2013 · A common problem in modern architectures with multiprocessor caches is called false sharing. This occurs when each individual processor is attempting to use data in another …

Jan 28, 2011 · The answer to this question strongly depends upon the architecture and the cache level, along with where the threads are actually running. For example, recent Intel multi core …

Jul 30, 2010 · As stated in this thread, simply using the CPU can cause the contents of cache to change. Since (most) cache implementations are intentionally completely transparent to the …

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 …

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 …

In recent weeks, I've noticed many users struggling with instability on their 13900K and 14900K systems. A prevalent cause is the motherboard's "Auto" settings or "Enforce all defaults," …

I'm writing a small program in C, and I want to measure it's performance. I want to see how much time do it run in the processor and how many cache hit+misses has it made. Information about …

Feb 19, 2013 · There is a tradeoff between cache size and hit rate on one side and read latency with power consumption on another. So the answer to your first question is: technically …

Apr 30, 2019 · I remember assuming that an L1 cache hit is 1 cycle (i.e. identical to register access time) in my architecture class, but is that actually true on modern x86 processors? How …

I can of course use the CPU affinity in order to allocate a whole core to the thread that processes my task Another kind of optimization could be to put in the CPU caches (L1, L2, L3) the data …