[lkml]   [2010]   [May]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Unexpected splice "always copy" behavior observed

On Wed, 19 May 2010, Miklos Szeredi wrote:
> And predictability is good. The thing I don't like about the above is
> that it makes it totally unpredictable which pages will get moved, if
> any.


Think of it this way: it is predictable. They get predictably moved when
moving is cheap and easy. It's about _performance_.

Do you know when TLB misses happen? They are unpredictable. Do you know
when the OS sends IPI's around? Do you know when scheduling happens?

No you don't. So stop whining.


 \ /
  Last update: 2010-05-19 18:07    [W:0.052 / U:29.044 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site