From: Tom Tromey <tromey@redhat.com>
To: Raphael Zulliger <zulliger@indel.ch>
Cc: gdb@sourceware.org
Subject: Re: Unneeded displaced single stepping causes issues: Performance drop and range stepping killer
Date: Wed, 24 Apr 2013 04:54:00 -0000 [thread overview]
Message-ID: <87li88o7fd.fsf@fleche.redhat.com> (raw)
In-Reply-To: <517516D8.6010604@indel.ch> (Raphael Zulliger's message of "Mon, 22 Apr 2013 12:54:16 +0200")
>>>>> "Raphael" == Raphael Zulliger <zulliger@indel.ch> writes:
Raphael> versus:
Raphael> (gdb) set displaced-stepping 1
Raphael> (gdb) si
Raphael> Sending packet: $m1508,4#9b...Packet received: 3c000058
Raphael> Sending packet: $m832d4,4#02...Packet received: 7c0802a6
Raphael> Sending packet: $X1508,0:#bc...Packet received:
Raphael> binary downloading NOT supported by target
Raphael> Sending packet: $M1508,4:7c0802a6#b0...Packet received: OK
Raphael> Sending packet: $g#67...Packet received:
[...]
I guess this is copying the instruction and stepping it? I wonder if we
could put more information about displaced stepping into the remote
protocol, to avoid the extra traffic.
Tom
next prev parent reply other threads:[~2013-04-24 4:54 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-22 10:54 Raphael Zulliger
2013-04-23 19:03 ` Pedro Alves
2013-04-24 6:58 ` Raphael Zulliger
2013-04-24 2:24 ` Yao Qi
2013-04-24 6:58 ` Raphael Zulliger
2013-05-01 3:36 ` Doug Evans
2013-05-03 2:32 ` Yao Qi
2013-04-24 4:54 ` Tom Tromey [this message]
2013-04-24 6:58 ` Raphael Zulliger
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