From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dl1-f70.google.com (mail-dl1-f70.google.com [74.125.82.70]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 918DE38F250 for ; Mon, 28 Sep 2026 18:26:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790619991; cv=none; b=Zj/mXlX+5PrmJd5ojUje1D8dAEomnhDnl242Zs6f+oypxVd2D6DpR+pFUbTW7IxAQzpdU/M9jYPRGgUfBBqMjdewbwPuHwv9wd9EzhxdbsshCJA67ua0+908ZJ/v7ASvFvedk3/EN0+mlpkivYKlSGczzCFD5fU50VdbjVqHsuo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790619991; c=relaxed/simple; bh=21FnBt6xz+cS1Eo3vnZo8gnR2+yMIJbL6y/GpuBa6Dw=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=nUOmpmycFt6plcxIehROENJI4ZSwOcAGgpjfVOr4lpEx5a2UBGcyXqbp7HWfzjbEDV7oFdE8BD0IxSuVO1DJKjEidhIyBCQQRKW4KCs7WJqKw1lvDlzAe7lPGZz+CWwtAObhlEmQz2eZJOOMc7Pt/p4o0lOLaYkZahccl012zk0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=KBdqyMn0; arc=none smtp.client-ip=74.125.82.70 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="KBdqyMn0" Received: by mail-dl1-f70.google.com with SMTP id a92af1059eb24-1438fef603cso6662428c88.0 for ; Mon, 28 Sep 2026 11:26:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1790619988; x=1791224788; darn=vger.kernel.org; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:from:to:cc:subject:date:message-id:reply-to :content-type; bh=39cwik9DwX/Gul1DUOxUABvjvx6S1yrwHfQQwFrAFYw=; b=KBdqyMn0XHfY9AGL+mnK6bZjbcMjrI+cISqzfPO5TwrMRr7EWnVdXUxPXEeWyFJsu+ o6Fe7Bzr0eko4PoD4hgdNa6vdNGZn/Tg9oY798UlF2/rFIEHtO3siMHR0HjWMu+Qmt2D dUknox2LpnJFl5j65F22qMdrbK5+dZscp/+KZBwOVeSCIDwSuCvzN5EK5uOeQFg/UQF9 Ex2QkgiPN6Ti2S2y2a7johyVXTHYliWI6mcUI5KDSSJJHGt+4PdJDU/tjFpvaBBqQP5L rX9mE0vdKrGuG5eEEUYxJxfOyCFzpeGrSSVk7P8js1WfRNM0mk2fMoEyWqCgn5YYfuch cekg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1790619988; x=1791224788; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=39cwik9DwX/Gul1DUOxUABvjvx6S1yrwHfQQwFrAFYw=; b=kCpuBNKhLvegHEE+s8bCf6BPrzE8xGhrsIEePIzoS5N3QwnkQK43IiuV8sutwKrhV0 Rri12YZw9AgyEZAKNIKMphkfm/JtmpY02HonMFUALi6OkAeUVC59nEL2+9k46ptdqG5F p309/1C9koLD0QdlOqkCQbwEibMNjTaM1P2t/2KD6Hq4EsHpKXdx3WURMhygkO0IyOy5 6C90FZ7/Ge36ymJC2BTglBcTqo8Q4VpM+X8kckEKdDlvs8F2gz83CKaSlGFrFUMm9lhy M+JYQirWrX/neq9ZHoRh+A/g2wBLdw76SV+pxORvfLtBWjEZClXz9xiwHGQVAs2eJd+R j1lA== X-Forwarded-Encrypted: i=1; AKwUvBylDzNiNvCxhDpRD/C8L06MORLLEDOaVxBX1N/iDpCIz9fdiSnymuTHB2PYnGWkpUg1+eMi68UEmRY0x7g=@vger.kernel.org X-Gm-Message-State: AFuF++ko05j7bMtV82CcbytUPuD4PZchypQjnJaJaYPXFQ/44pybimC+ KXTOqfVfmndRiIIK1kcQBsU45AfZhmy3Iv83P4Wnu8rUUzTXPX47BA6C+hHORv1iOTwyL3HVpDw AeyaXf8CZQQ== X-Received: from dlx24.prod.google.com ([2002:a05:7022:98:b0:14a:fd8a:cbe4]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:701b:2506:b0:149:50cb:216f with SMTP id a92af1059eb24-14950cb2220mr4877126c88.33.1790619988070; Mon, 28 Sep 2026 11:26:28 -0700 (PDT) Date: Mon, 28 Sep 2026 11:25:46 -0700 In-Reply-To: <20260928182605.3649015-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260928182605.3649015-1-irogers@google.com> X-Mailer: git-send-email 2.56.0.rc1.315.gc6ed9934b7-goog Message-ID: <20260928182605.3649015-8-irogers@google.com> Subject: [PATCH v6 07/26] perf trace: Start BPF summary before starting workload From: Ian Rogers To: Arnaldo Carvalho de Melo , Namhyung Kim , Aaron Tomlin Cc: Howard Chu , Jakub Brnak , Peter Zijlstra , Ingo Molnar , Jiri Olsa , Adrian Hunter , James Clark , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, Ian Rogers Content-Type: text/plain; charset="UTF-8" trace_start_bpf_summary() is called after evlist__start_workload(), so a short lived workload can make its syscalls, or even exit, before the BPF summary is enabled. It also ignores --delay. Enable it along with the evlist, before the workload starts or after the initial delay. Assisted-by: Antigravity:gemini-3.1-pro Signed-off-by: Ian Rogers --- tools/perf/builtin-trace.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index f94745a60f4a..1ffe824ba670 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -4855,17 +4855,19 @@ static int trace__run(struct trace *trace, int argc, const char **argv) if (!target__none(&trace->opts.target) && !trace->opts.target.initial_delay) evlist__enable(evlist); + if (trace->summary_bpf && !trace->opts.target.initial_delay) + trace_start_bpf_summary(); + if (forks) evlist__start_workload(evlist); if (trace->opts.target.initial_delay) { usleep(trace->opts.target.initial_delay * 1000); evlist__enable(evlist); + if (trace->summary_bpf) + trace_start_bpf_summary(); } - if (trace->summary_bpf) - trace_start_bpf_summary(); - trace->multiple_threads = perf_thread_map__pid(evlist__core(evlist)->threads, 0) == -1 || perf_thread_map__nr(evlist__core(evlist)->threads) > 1 || evlist__first(evlist)->core.attr.inherit; -- 2.56.0.rc1.315.gc6ed9934b7-goog