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Re: gcc dwarf2out: Drop the size + performance overhead ofDW_AT_sibling
- From: Jan Kratochvil <jan dot kratochvil at redhat dot com>
- To: Mark Wielaard <mjw at redhat dot com>
- Cc: Project Archer <archer at sourceware dot org>
- Date: Wed, 19 Oct 2011 13:28:57 +0200
- Subject: Re: gcc dwarf2out: Drop the size + performance overhead ofDW_AT_sibling
- References: <201110170508.p9H581vh028090@shell.devel.redhat.com><20111017133634.GA5677@host1.jankratochvil.net><1318929963.8669.2.camel@springer.wildebeest.org><20111018094457.GB2412@host1.jankratochvil.net><1319016858.8669.81.camel@springer.wildebeest.org>
Hi Mark,
On Wed, 19 Oct 2011 11:34:18 +0200, Mark Wielaard wrote:
> real 0m0.558s
->
> real 0m0.603s
I find it a significant enough performance degradation.
I will look into some compromise of a selective DW_AT_sibling entries.
Thanks for the stap commands for performance tuning.
Regards,
Jan