Subject: Re: New ld.elf_so from FreeBSD
To: Jason R Thorpe <firstname.lastname@example.org>
From: Charles Hannum <email@example.com>
Date: 09/05/2002 20:18:40
> > * Multi-threading support (i.e. r/w locking for dl*() calls) is added.
> I think there are some problems with this.
> 1. We've been talking a lot about performance of the dynamic
> linker lately. The r/w locking is totally unnecessary for
> non-threaded applications. Making non-threaded applications
> pay the penalty of using them seems to go against the spirit
> of improving performance.
Had you bothered to *look* at the FreeBSD code, or *ask* how it works,
rather than simply tossing out another strawman, you would know that
the code does not actually introduce a significant penalty for
non-threaded apps. It uses a callback (dllockinit()) to enable