Chapter 5 GCC nit
poisonbl at gmail.com
Tue Aug 2 10:37:56 PDT 2005
just going by the numbers then, and that pass 1 is ~3 times the work,
11 is far too much, but does g++ actually add that much to the compile
time? ... granted i don't recall make test taking more than about
20-30 mins (3-4) SBU on my box ... so i guess 14 with the tests does
fall around the same mark as 11 without ... though i must admit that i
never really timed the full build of pass 2 ... i generally sleep
and/or eat dinner while i run that one ...
On 8/2/05, Ken Moffat <ken at kenmoffat.uklinux.net> wrote:
> On Mon, 1 Aug 2005, Randy McMurchy wrote:
> > Hi all,
> > A minor nit I noticed in the Chapter 5 GCC instructions (all versions):
> > Noted in the SBU times between Pass 1 and Pass 2 is that they seem to
> > be reversed. Pass 1 is shown to be 4.4 SBU and Pass 2 is 11.0. Shouldn't
> > these be the other way around?
> > My experience is that bootstrapping Pass 1 takes significantly longer
> > than simply building in Pass 2 (Pass 2 includes c++ notwithstanding).
> > I did not factor in the test suite as the SBU times don't reflect they
> > are being run.
> Huh ? 11 SBU for pass 1 ? I admit that my timings include the
> testsuite for pass 2, but for 6.1 on i686 I've got
> gcc-3.4.3 pass 1 596 seconds, 4.3 SBU
> gcc-3.4.3 pass 2 2075 seconds, 14.9 SBU
> das eine Mal als Tragödie, das andere Mal als Farce
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Joshua M. Murphy
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