Re: [profile] amortize atomic hit count increments

William Lee Irwin III
2004-09-14T06:18:12Z

On Mon, Sep 13, 2004 at 11:10:23PM -0700, William Lee Irwin III wrote:
> Well, that would speed it up, but the catastrophe was avoided in the
> older patches by just processing all the hits for one cpu at a time,
> and the buffering methods above for your suggested accounting
> structures likely work well enough the overhead of processing unused
> portions of the bitmap can be ignored. I don't really want to go about
> addressing performance issues besides effective or actual
> nontermination for this code, and would rather leave highly efficient
> methods to oprofile (in fact, some others believe that even bugfixes
> for such issues should be ignored for kernel/profile.c, contrary to my
> notion that it shouldn't crash systems regardless of their size).

s/portions of the bitmap/portions of the profile buffer/