Re: Elisp native profiler

[Paul Eggert]

On 09/30/2012 01:13 PM, Stefan Monnier wrote:
>> I also like increasing the default sample interval to 10 ms.
> 
> Any particular reason?

Conservativism.  If the sample interval is too small,
bad things happen: Emacs goes catatonic or dumps
core or whatever.  (I found this out by using a
sample interval of 1 microsecond -- silly, I know,
but I wanted to see what would happen....)

Whether an interval is "too small" depends on the
platform.  The platforms most at risk are the older,
slower ones.

If 1 ms was ten times better than 10 ms, in terms of the profile
quality that it gave you, it'd be worth going with 1 ms
despite these potential (and maybe nonexistent) problems.
But it doesn't seem to be *that* much better.

All that being said, it's no big deal.
1 ms is fine too, I expect.