09.04.2012 17:26, Andrei Alexandrescu пишет:
On 4/9/12 2:06 AM, Denis Shelomovskij wrote:
Why will recording the average produce so much noise?
As I explained, the average takes noise and outliers (some very large,
e.g. milliseconds in a benchmark that takes microseconds) into account.
The minimum is shielded from this issue. In the limit, the minimum for
infinitely many measurements is the sought-after result.
As I see, floating
point arithmetic is now used without a strong reason so it looks like a
time of this part isn't valuable. Or is it just a temporary solution?
I don't understand "time of this part".
Looks like a misunderstanding because of my bad English: "Recording the
average will include a fair amount of noise" means for me that a process
of "recording the average" produces "a fair amount of noise" itself, not
that "a result includes noise".
--
Денис В. Шеломовский
Denis V. Shelomovskij
