3 ms·
Saying that the cost of a system call is X cycles is IMHO a bit "short", what's the effect on the various caches? TLB.. Plus nearly all system calls must valid
by renox 7y ago
Saying that the cost of a system call is X cycles is IMHO a bit "short", what's the effect on the various caches? TLB..
Plus nearly all system calls must validate the user inputs, so the minimum cost for a system cost is far from the sysenter cost itself.
- monocasa 7y agoL4 is all about removing all of those concerns from at least a variant of IPC, FWIW.