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Date: Mon, 30 Jun 2014 17:13:00 -0000
From: Jan Kratochvil <jan.kratochvil@redhat.com>
To: Doug Evans <dje@google.com>
Cc: eliz@gnu.org, gdb-patches@sourceware.org
Subject: Regression for GDB global --statistics  [Re: [doc RFA] New commands: mt set per-command on|off]
Message-ID: <20140630171333.GA2225@host2.jankratochvil.net>
References: <yjt2ip4s5mbu.fsf@ruffy2.mtv.corp.google.com>
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On Fri, 15 Mar 2013 23:29:09 +0100, Doug Evans wrote:
> This patch adds a new option to display some simple symtab stats
> akin to how "mt time|space 1" work.  For consistency with the
> rest of gdb I named it:
> 
> maint set per-command symtab on|off
> maint show per-command symtab

bd712aed2f88ab824d403c55a212c2be3f41a335 is the first bad commit
commit bd712aed2f88ab824d403c55a212c2be3f41a335
Author: Doug Evans <dje@google.com>
Date:   Thu Mar 21 17:37:30 2013 +0000
        New commands "mt set per-command {space,time,symtab} {on,off}".

before (gdb-7.6):
gdb -nx -q -statistics  </dev/null
Startup time: 0.031000 (cpu), 0.033828 (wall)
Space used: 4005888 (+4005888 during startup)
(gdb) quit

after (gdb-7.7+):
gdb -nx -q -statistics  </dev/null
(gdb) quit

Commands stats work now but no longer the global stats.  Command stats look
differently ("for this command" vs. "during startup"):
echo echo|gdb -nx -q -statistics 
(gdb) Command execution time: 0.000000 (cpu), 0.000008 (wall)
Space used: 4206592 (+0 for this command)
(gdb) quit

It has been found by Miroslav Franc.


Jan