Huge slowdown since 6.0
Andrew Cagney
cagney@gnu.org
Fri Feb 20 18:45:00 GMT 2004
> On Fri, Feb 20, 2004 at 01:07:46PM -0500, Andrew Cagney wrote:
>
>>> Even if we start out with on-demand, it should work better. Given:
>>>
>>> $ gdb foo
>>> (gdb) break main
>>> (gdb) run
>>>
>>> why is GDB loading glibc's symbols?
>
>
> Main might be a function defined in a shared library. Even if we found
> a definition in the executable, it might be a PLT loading slot. KDE
> on i386 will demonstrate this exact behavior.
It's been suggested to me that we should create a hacked gdb that
records all commands et.al. to a file, and then offers to send them to
us. That way we know what is, rather than what might be.
If we knew for instance that only 10% of users set breakpoints outside
of the main executible, then we'd also know that we were frustrating 90%
of users by making them sit around waiting for needless symbol table
reads :-(
On the other hand, if we knew that the first thing people did was:
(gdb) break <tab>
we'd have an entirely different problem.
Andrew
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