[Bug gdb/24889] From gdb 8.1, major performance issue with all the commands involving a symbol lookup on class members of SystemC types

["julien.torres at synopsys dot com" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=24889

--- Comment #3 from Julien <julien.torres at synopsys dot com> ---
Hi Simon,

I have made some benchmarks on the attached example with various gdb versions.

gdb version   Time in seconds
gdb 8.0.1        2.3
gdb 8.1         10.0
gdb 8.3         10.1
gdb 9.1          5.8
gdb 9.2          6.0
gdb 10.1         4.9

As you can see, things have been significantly improved in 9.1 and 10.1, but it
is still significantly slower than with 8.0.1.

I have found the issue with some programs using SystemC. But this probably
affects other programs which use lots of complex template classes and types (as
SystemC does).

So it would be be great if someone could have a look at the issue.

Thanks.

Julien

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