From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David S. Ahern" Subject: Re: [PATCH v3] perf tools: Add symfs option for off-box analysis using specified tree Date: Tue, 14 Dec 2010 07:33:27 -0700 Message-ID: <4D078037.9060207@cisco.com> References: <1291926427-28846-1-git-send-email-daahern@cisco.com> <20101214122428.GA13425@ghostprotocols.net> <20101214125245.GB13425@ghostprotocols.net> <20101214140604.GC13425@ghostprotocols.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from sj-iport-4.cisco.com ([171.68.10.86]:46343 "EHLO sj-iport-4.cisco.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752106Ab0LNOd1 (ORCPT ); Tue, 14 Dec 2010 09:33:27 -0500 In-Reply-To: <20101214140604.GC13425@ghostprotocols.net> Sender: linux-perf-users-owner@vger.kernel.org List-ID: To: Arnaldo Carvalho de Melo Cc: linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org On 12/14/10 07:06, Arnaldo Carvalho de Melo wrote: > Em Tue, Dec 14, 2010 at 10:52:45AM -0200, Arnaldo Carvalho de Melo escreveu: >> Ok, there are still some problems: >> >> It is escaping the symfs jail for /home/acme/bin/perf, /lib64/libpthread-2.5.so >> and kernel modules, investigating... > > Those 'G' signals means DSO__ORIG_GUEST_KMODULE, since you were not > prefixing that case with symfs, it was the jail leak point, fixed, doing > some more testing before merging. yuk. I did not touch the hypervisor paths. So the 'guest' route is tried all the time because of the origin list -- even when it's not applicable. David > >> [acme@mica linux]$ find /tmp/bla >> /tmp/bla >> /tmp/bla/lib64 >> /tmp/bla/lib64/libc-2.5.so >> [acme@mica linux]$ perf report -v -g none --stdio --symfs /tmp/bla >> Failed to open [kernel.kallsyms], continuing without symbols >> # Events: 503 cycles >> # >> # Overhead Command Shared Object Symbol >> # ........ .......... ..................................... .................... >> # >> 0.84% perf /home/acme/bin/perf 0x26bf1 G [.] die_builtin >> 0.21% perf /home/acme/bin/perf 0x1db4b G [.] event__synthesize_kernel_mmap >> 0.21% perf /home/acme/bin/perf 0x4700 G [.] _init >> 0.21% perf /home/acme/bin/perf 0x1deca G [.] event__synthesize_comm >> 0.21% perf /lib64/libpthread-2.5.so 0xd210 G [.] __write_nocancel >> 0.21% perf /home/acme/bin/perf 0xddbd G [.] atexit_header >> 0.03% kworker/0:1 /lib/modules/2.6.37-rc3/.../ixgbe.ko 0x605 G [k] ixgbe_update_stats