This is the mail archive of the gcc-regression@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: A recent patch increased GCC's memory consumption!

From: Kazu Hirata <kazu at codesourcery dot com>
To: Jan Hubicka <jh at suse dot cz>
Cc: gcctest at suse dot de, gcc-regression at gcc dot gnu dot org
Date: Tue, 18 Apr 2006 11:23:33 -0400
Subject: Re: A recent patch increased GCC's memory consumption!
References: <444404FF.mail8MN11XHAG@suse.de> <20060418144523.GA18906@kam.mff.cuni.cz>

Hi Honza,

Hmm,
looks like it is the vector change.  I wonder if we can't cut them down
to VARRAY memory usage and/or avoid aliasing datastructures at -O0
completely?

Of the three new VECs mentioned in the ChangeLog diff, reg_base_value tries to keep allocated memory for the next function to be compiled. See alias.c:2428.

The cgraph one shouldn't matter as it is allocated on heap and explicitly freed.

When you take stats, are you doing so after running GC?

Kazu Hirata

Follow-Ups:
- Re: A recent patch increased GCC's memory consumption!
  - From: Jan Hubicka

References:
- A recent patch increased GCC's memory consumption!
  - From: gcctest
- Re: A recent patch increased GCC's memory consumption!
  - From: Jan Hubicka

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]