2 ms·
Linus says it is about 5% of the time taken in his run. Well, 5% of 30 seconds is not too far off a second. But yes, the kernel build is doing all sorts of stu
by mnw21cam 13y ago
Linus says it is about 5% of the time taken in his run. Well, 5% of 30 seconds is not too far off a second.
But yes, the kernel build is doing all sorts of stuff other than stat, like starting shells and sub instances of make.
- stas321 13y agoLinus says about page fault overhead, not system call. I understand this is a much different thing. On x86 page fault raises an interrupt. For a system call there is an instruction designed for fast control transfer to avoid costly interrupt