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Re: Boehm-gc performance data

From: Mike Stump <mrs at apple dot com>
To: Laurynas Biveinis <laurynas dot biveinis at gmail dot com>
Cc: Daniel Berlin <dberlin at dberlin dot org>, gcc at gcc dot gnu dot org
Date: Fri, 23 Jun 2006 10:19:13 -0700
Subject: Re: Boehm-gc performance data
References: <d1e3ff2b0606230851n22821fdt@mail.gmail.com>

On Jun 23, 2006, at 8:51 AM, Laurynas Biveinis wrote:

First number is GCC with Boehm's GC and the number in parentheses is
GCC with page collector.

combine.c: top mem usage: 52180k (13915k). GC execution time 0.66
(0.61) 4% (4%). User running time: 0m16 (0m14).

Are these with checking on or off? Normally checking is on, you have to go out of your way to turn it off. If it were on, the real numbers are going to look much worse than the ones you're presented.

Also, I've not been following real closely, but the GTY markers are used by PCH and the dual use of them by GC allow one to find PCH bugs more quickly and easily. If we moved entirely to Boehm's, did you have a plan for the GTY markers and PCH?

Follow-Ups:
- Re: Boehm-gc performance data
  - From: Andrew Pinski
- Re: Boehm-gc performance data
  - From: Laurynas Biveinis

References:
- Boehm-gc performance data
  - From: Laurynas Biveinis

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