cpu-cache

问题 The L1/L2 cache are inclusive in Intel and L1 / L2 cache is 8 way associativity, means in a set there are 8 different cache lines exist. The cache lines are operated as a whole, means if I want to remove few bytes from a cache line, the whole cache line will be removed , not the only those bytes which I want to remove. Am I right ? Now, my question is whenever a cache line of a set is removed/evicted from cache, either by some other process or by using clflush(manual eviction of a cache line

问题 I'm a student doing some research on Hyper-threading recently. I'm a little confused about the feature - L1 Data Cache Context Mode. In the architecture optimization manual, it was described that L1 cache can operate in two modes: The first level cache can operate in two modes depending on a context-ID bit: Shared mode: The L1 data cache is fully shared by two logical processors. Adaptive mode: In adaptive mode, memory accesses using the page directory is mapped identically across logical

问题 I'm a student doing some research on Hyper-threading recently. I'm a little confused about the feature - L1 Data Cache Context Mode. In the architecture optimization manual, it was described that L1 cache can operate in two modes: The first level cache can operate in two modes depending on a context-ID bit: Shared mode: The L1 data cache is fully shared by two logical processors. Adaptive mode: In adaptive mode, memory accesses using the page directory is mapped identically across logical

来源： https://stackoverflow.com/questions/40727700/why-implement-data-cache-and-instruction-cache-to-reduce-miss

来源： https://stackoverflow.com/questions/40727700/why-implement-data-cache-and-instruction-cache-to-reduce-miss

来源： https://stackoverflow.com/questions/40727700/why-implement-data-cache-and-instruction-cache-to-reduce-miss

来源： https://stackoverflow.com/questions/64754316/writeback-of-clean-cache-lines-in-skylake

来源： https://stackoverflow.com/questions/64754316/writeback-of-clean-cache-lines-in-skylake

来源： https://stackoverflow.com/questions/64754316/writeback-of-clean-cache-lines-in-skylake

来源： https://stackoverflow.com/questions/62376976/why-doesnt-rfo-after-retirement-break-memory-ordering