From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756624AbaIILyI (ORCPT ); Tue, 9 Sep 2014 07:54:08 -0400 Received: from mail-lb0-f178.google.com ([209.85.217.178]:55404 "EHLO mail-lb0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752413AbaIILyG (ORCPT ); Tue, 9 Sep 2014 07:54:06 -0400 Message-ID: <1410263641.15383.8.camel@marge.simpson.net> Subject: perf top -g -U --sort=symbol --children == lalalalala? From: Mike Galbraith To: LKML Cc: Arnaldo Carvalho de Melo Date: Tue, 09 Sep 2014 13:54:01 +0200 Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Seems the now default on --children thingy doesn't like -U much. Samples: 5K of event 'cycles', Event count (approx.): 2268660922 Children Self Symbol + 46.42% 0.04% [k] system_call_fastpath + 27.12% 0.80% [k] apic_timer_interrupt + 26.26% 0.23% [k] smp_apic_timer_interrupt + 20.43% 0.13% [k] local_apic_timer_interrupt + 20.20% 0.74% [k] hrtimer_interrupt + 18.01% 0.39% [k] __run_hrtimer + 14.43% 0.35% [k] tick_sched_timer + 13.60% 0.05% [k] sys_poll + 13.09% 1.16% [k] do_sys_poll + 12.16% 0.08% [k] tick_sched_handle.isra.16 + 11.70% 0.32% [k] update_process_times + 11.41% 0.03% [k] sys_read + 11.17% 0.11% [k] vfs_read + 10.85% 0.09% [k] seq_read + 8.27% 0.09% [k] proc_single_show + 7.79% 1.19% [k] page_fault + 7.01% 0.25% [k] scheduler_tick + 6.26% 0.11% [k] __do_page_fault + 5.97% 1.33% [k] do_task_stat + 5.91% 0.23% [k] handle_mm_fault + 5.40% 0.20% [k] do_sys_open + 5.02% 0.09% [k] ret_from_intr + 4.94% 0.05% [k] do_IRQ + 4.70% 0.14% [k] path_openat + 4.69% 0.62% [k] tty_poll + 4.69% 0.16% [k] irq_exit + 4.49% 0.63% [k] __do_softirq + 4.27% 0.12% [k] __alloc_pages_nodemask + 3.95% 0.03% [k] handle_irq_event_percpu + 3.51% 0.71% [k] __fget_light + 3.47% 0.04% [k] sys_select + 3.39% 0.08% [k] seq_printf + 3.37% 0.07% [k] sys_open + 3.34% 0.11% [k] seq_vprintf + 3.22% 0.02% [k] core_sys_select + 3.15% 0.26% [k] do_select + 3.15% 3.15% [k] _raw_spin_lock