performance regression with trunk's gengtype on ARM?

[Basile Starynkevitch]

On Sun, 28 Aug 2011 22:57:54 +0200
Mikael Pettersson <mikpe@it.uu.se> wrote:

> I'm seeing what appears to be a recent massive performance regression
> with trunk's gengtype, as compiled and run in stage 2, on ARM V5TE.
> 
> Right now 4.7-20110827's stage2 gengtype has been running for almost
> 10 hours on my ARM build machine, but the process is tiny and no swapping
> occurs.  [...]

This is indeed very suspicious (especially since it happens in stage2, not in stage1,
IIUY). Can you ltrace or strace the gengtype process?

You could set GENGTYPE_FLAGS= -v in gcc/Makefile.in to understand more what gengtype is
doing. And gengtype accepts several -v flags.

Cheers.

-- 
Basile STARYNKEVITCH         http://starynkevitch.net/Basile/
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