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Re: RFC: Speeding up libstdc++.so with --dynamic-list-data
On Tue, Jan 09, 2007 at 01:38:00PM +0000, Andrew Haley wrote:
> H. J. Lu writes:
> > I am enclosing a patch to implement a new linker swicth,
> > --dynamic-list-data. It is -Bsymbolic for function symbols only.
> > I tried it with C, C++, Java and Fortran on Linux/ia32, Linux/x86-64
> > and Linux/ia64. There are only a few regressions. The function calls
> > within the new resulting DSOs will bind locally. It speeds up
> > the enclosed C++ testcase by
> >
> > 1. 23% on ia64.
> > 2. 6% on ia32.
> > 3. 3% on x86-64.
> >
> > Should we consider such optimization?
>
> That's a terrible name for the option. What does it mean?
It is an extension of the current command line options:
--dynamic-list-cpp-typeinfo Use C++ typeinfo dynamic list
--dynamic-list FILE Read dynamic list
H.J.