[lkml]   [2017]   [Jul]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH v3 00/10] x86: ORC unwinder (previously undwarf)

* Josh Poimboeuf <> wrote:

> For user space stack unwinding, the kernel could emulate what the kernel
> 'guess' unwinder does by scanning the user space stack and returning all
> the text addresses it finds.

User-space stacks tend to be much larger than kernel stacks, the cost of doing
such a full scan on every PMI would kill a lot of profiling workloads.



 \ /
  Last update: 2017-07-14 10:30    [W:0.112 / U:23.744 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site