Re: Intel P6 vs P7 system call performance

GrandMasterLee
2002-12-14T18:28:54Z

On Sat, 2002-12-14 at 04:01, Dave Jones wrote:
> On Fri, Dec 13, 2002 at 11:53:51PM -0500, Mike Dresser wrote:
> > On Fri, 13 Dec 2002, Mike Dresser wrote:
> >
> > > The single P4/2.53 in another machine can haul down in 3m17s
> > >
> > Amend that to 2m19s, forgot to kill a background backup that was moving
> > files around at about 20 meg a second.

> Note that there are more factors at play than raw cpu speed in a
> kernel compile. Your time here is slightly faster than my 2.8Ghz P4-HT for
> example. My guess is you have faster disk(s) than I do, as most of
> the time mine seems to be waiting for something to do.

An easy way to level the playing field would be to use /dev/shm to build
your kernel in. That way it's all in memory. If you've got a maching
with 512M, then it's easily accomplished.

> *note also that this is compiling stock 2.4.20 with default configuration.
> The minute you change any options, we're comparings apples to oranges.
>
> Dave