2 ms·

> OS flushes a lot of data and instructions from the cache Only if you actually switch contexts. For I/O, this isn't necessary -- you don't need to touch a thi

by ori_b 11y ago

> OS flushes a lot of data and instructions from the cache Only if you actually switch contexts. For I/O, this isn't necessary -- you don't need to touch a thing in the TLB.