lkml.org 
[lkml]   [1998]   [Sep]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Interesting scheduling times - NOT
On Thu, 24 Sep 1998, Peter T. Breuer wrote:

> > Not that you would really expect most of events you'd benchmark on a
> > computer to have a very bell-shaped distribution.
>
> It doesn't matter. The result you quote is true for any distribution
> with bounded mean and variance. It's one of the basic theorems in
> probability. I.e. Larry's argument is wrong here. Well spotted.

I only mentioned that because Larry mentioned normal distributions of
results in a previous message and it struck me as strange to expect a
normal distribution of scheduler latencies. He was arguing against using
the minimum time from a benchmark, as I recall. There are a number of
places this is useful number, for instance, the round trip times from
ping. The minimum rtt is a rather hard limit and tells you what the best
latency you can expect is.

--
"Love the dolphins," she advised him. "Write by W.A.S.T.E.."


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:44    [W:0.059 / U:0.340 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site