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From: Nix <nix@esperi.org.uk>
To: Florian Weimer <fw@deneb.enyo.de>
Cc: michael.meeks@novell.com, gcc@gcc.gnu.org
Subject: Re: Large, modular C++ application performance ...
Date: Sat, 30 Jul 2005 13:26:00 -0000	[thread overview]
Message-ID: <87ek9gfmro.fsf@amaterasu.srvr.nix> (raw)
In-Reply-To: <871x5hs6w0.fsf@deneb.enyo.de> (Florian Weimer's message of "29 Jul 2005 21:19:13 +0100")

On 29 Jul 2005, Florian Weimer announced authoritatively:
> * michael meeks:
> 
>> 	I've been doing a little thinking about how to improve OO.o startup
>> performance recently; and - well, relocation processing happens to be
>> the single, biggest thing that most tools flag.
> 
> Have you tried prelinking?

Prelinking is mentioned near the start of the paper and was actually
implemented with OOo (and KDE) in mind.

Alas, it's ineffective for dlopen()ed objects, and OOo dlopen()s nearly
everything. (To my mind the solution is `don't do that then; DT_NEEDED
has a purpose dammit'... certainly this is less disruptive than a change
to the C++ ABI, requiring cooperation with other vendors and a rebuild
of the entire known C++ universe yet again! But I am but an egg in these
waters.)

-- 
`Tor employs several thousand editors who they keep in dank
 subterranean editing facilities not unlike Moria' -- James Nicoll 

  reply	other threads:[~2005-07-30 13:26 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-07-29 19:49 michael meeks
2005-07-29 20:19 ` Florian Weimer
2005-07-30 13:26   ` Nix [this message]
2005-07-30 13:36 ` Giovanni Bajo
2005-07-30 17:24   ` Andrew Haley
2005-08-01  9:45     ` michael meeks
2005-08-01 12:18       ` Steven Bosscher
2005-08-02  9:22         ` michael meeks
2005-08-01  9:39   ` michael meeks
2005-08-01 15:55     ` H. J. Lu
2005-08-02  9:59       ` michael meeks
2005-08-02 13:57         ` H. J. Lu
2005-08-02 16:15           ` michael meeks
2005-08-03  3:07             ` PATCH: Add export to linker map (Re: Large, modular C++ application performance ...) H. J. Lu
2005-08-01 16:59 ` Large, modular C++ application performance Dan Nicolaescu
2005-07-30 15:19 dank
2005-08-01  9:53 ` michael meeks

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