Messages in this thread | | | From | Linus Torvalds <> | Date | Thu, 19 Apr 2012 11:11:00 -0700 | Subject | Re: [PATCH 3/3] x86, extable: Handle early exceptions |
| |
On Thu, Apr 19, 2012 at 10:38 AM, Borislav Petkov <bp@amd64.org> wrote: > > OTOH, if we can share early and normal exception handling lookup code, then a > perfect hash would make sense as those exceptions would pile up.
Oh, any of this only makes sense if we can share it with the runtime exception lookup.
They are *seldom* hugely performance-critical, but there are some unusual loads where you do get a fair number of exceptions.
Linus
| |