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In-Reply-To: <20141020214410.GA22011@host2.jankratochvil.net>
References: <20141020214410.GA22011@host2.jankratochvil.net>
Date: Fri, 24 Oct 2014 07:19:00 -0000
Message-ID: <CAP9bCMQsjac4uu08F-N0DQTz+AY9Lpzt=M=RKBDFRUW2CbEzCg@mail.gmail.com>
Subject: Re: [patch 0/2] Accelerate symbol lookups 15x
From: Doug Evans <xdje42@gmail.com>
To: Jan Kratochvil <jan.kratochvil@redhat.com>
Cc: "gdb-patches@sourceware.org" <gdb-patches@sourceware.org>
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On Mon, Oct 20, 2014 at 2:44 PM, Jan Kratochvil
<jan.kratochvil@redhat.com> wrote:
> Hi,
>
> this patchset has been developed+tested only on top of
>         [patchv2] Fix 100x slowdown regression on DWZ files
>         https://sourceware.org/ml/gdb-patches/2014-10/msg00031.html
>
> [...]
> g++ -o slow slow.C -Wall -g $(pkg-config --libs gtkmm-3.0)
> gdb ./slow -ex 'b C::m' -ex 'maintenance set per-command space' -ex 'maintenance set per-command symtab' -ex 'maintenance set per-command time' -ex r
> [...]
> (gdb) p <tab><tab>
> Display all 183904 possibilities? (y or n) n
> (gdb) p/r var

Sorry I didn't mention this sooner.  I wanted to point this out since
it's a more straightforward way to expand symtabs.  Instead of using
"p <tab><tab>" to expand symtabs, there is "mt expand-symtabs".