From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yw1-f202.google.com (mail-yw1-f202.google.com [209.85.128.202]) (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 513A21119C for ; Wed, 14 Feb 2024 04:54:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707886480; cv=none; b=LTEeRUbUy7kOBF/aJwft7uWAgFlaAoY2VsM3YKCnaZaUEoTC63ur6P1RZ4dcAjpxRJ0lBs3vvzECphDR6mmrhNQzXwJGYwZEE6hfuplVd3J8VRSPUu88pu+xMvyNd5ozk+UNYlph7JtYEMAWEqMNgN0tvBUlUVFfpDVGIqyi/YM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707886480; c=relaxed/simple; bh=cEoquvI2Ge+v6/Ow4yXCwb905NVQF3PwLLtFQnXzKG0=; h=Date:In-Reply-To:Message-Id:Mime-Version:References:Subject:From: To:Content-Type; b=Mgkrmwt60w1yQC9TgB5T/ma3/W6V5XX52ZS8j8xNc7e+UpnJY7XjUO0Yhu0Or6Vf6IRnNZ/6T7Swr7hL37wYpDz0HttOEWXlDmTUoxCfr3HoZrZDmVjRZHPH3Eg4doRE1nJckdVI3HuFMlWOj7isx/QeSpgXyXA5OPToVCdAhVU= 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=Kvl4xmRZ; arc=none smtp.client-ip=209.85.128.202 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="Kvl4xmRZ" Received: by mail-yw1-f202.google.com with SMTP id 00721157ae682-6047f0741e2so81570207b3.3 for ; Tue, 13 Feb 2024 20:54:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1707886478; x=1708491278; darn=lists.linux.dev; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=WQsEsQdYL+F7rq54Mfa+75HgoPY/TwxmW9rhD6V78kU=; b=Kvl4xmRZ9kqJ2pu3tCuVSQzxNbszkvMqddWFmFTd4dR2HjRrGVHDLUUCftfHVVfhEp Ww+X0tAe1NHeaatb9X7rqEu9tOIA/MZpm/19Ni0Y3gP9JlrwkREUBFSvHKtCQm6rAKRg yPQyFB1cIWTKcIDRas5vUyZcJk9F5cHHhdRDNkjrHEwRDLkOLprbAKOoln3G6F3Fz7Cu XUkRfR0PzlAue77mw6IFIRtt1thfcqrMsNqmc5sFgqwo+DRY1BVoNdSvry7Bex2wVuZD hWBKipksoq5HOopRP7uxl0qFDFkmloWqdDrhZu1a0RhrM8bgCthzNRvQsPncH6E93bJ6 Fjtg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707886478; x=1708491278; h=to:from:subject:references:mime-version:message-id:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=WQsEsQdYL+F7rq54Mfa+75HgoPY/TwxmW9rhD6V78kU=; b=W28jFNmYRmKBgh/VI0PaUGSU85tKqaq9U9XJG4meVpKy8sKGeEZrLvbbBdGmcX8TZT 9kHEmN4wmrDVosuJ+Zw1yj+xvEwUZQKnPkIv+SbYbkChB5B1ld7kUyMJ441NrecFeRgB fF2zSa9+F+NjxzZUjp3TmC4RrsQT3FQn/Otv1ncoscdilxsjsBN1YkXGOOq+/Yw4Q+Z1 9dQc9NNZpq+Xp115tjohYnhtymPiKLYMNBdmS2rEDofo8gVaW0hv7eZUvRGWUWso4RHv mHYdglmSSer8I3pJ/Hn7WcR6+eN64vx4Q7r1JmY9fnKUjFGOMPNaa00XgkEi4G87CIKa scmA== X-Forwarded-Encrypted: i=1; AJvYcCV6Yskxe/8PQCR0gnrsXWK5fGQDD5V+imRzLLXTkTvPt/7Jgs0v17b1mkej3VzspjM1bcuP7HOMGVh2d2XPz0HXLCT8SA== X-Gm-Message-State: AOJu0YxyVY2YdlGdi6szrDbX49abl1dJP52tCvatKBQ4i4Vwc04k0L/H Hh/gAyhV0Mg52K8eA4zQ0ppWuBJgC4Pi37kr/QV7DhUShMkN639nezqexwwRNpUT2ZdveB3iorj F39jnhg== X-Google-Smtp-Source: AGHT+IEyHbP+pckfFvabgFHrAtPTPFgzZnnrvWiKaPJToQmUliMu4+e+EktFDuhWE7n5StUlVnHejJ0MRW+a X-Received: from irogers.svl.corp.google.com ([2620:15c:2a3:200:6d92:85eb:9adc:66dd]) (user=irogers job=sendgmr) by 2002:a0d:cb4a:0:b0:607:83bd:bea3 with SMTP id n71-20020a0dcb4a000000b0060783bdbea3mr244497ywd.10.1707886478458; Tue, 13 Feb 2024 20:54:38 -0800 (PST) Date: Tue, 13 Feb 2024 20:53:51 -0800 In-Reply-To: <20240214045356.748330-1-irogers@google.com> Message-Id: <20240214045356.748330-4-irogers@google.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240214045356.748330-1-irogers@google.com> X-Mailer: git-send-email 2.43.0.687.g38aa6559b0-goog Subject: [PATCH v4 3/8] perf tests: Avoid fork in perf_has_symbol test From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , James Clark , Athira Jajeev , Kan Liang , Yang Jihong , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, llvm@lists.linux.dev Content-Type: text/plain; charset="UTF-8" perf test -vv Symbols is used to indentify symbols within the perf binary. Add the -F flag so that the test command doesn't fork the test before running. This removes a little overhead. Signed-off-by: Ian Rogers Acked-by: Adrian Hunter --- tools/perf/tests/shell/lib/perf_has_symbol.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/tests/shell/lib/perf_has_symbol.sh b/tools/perf/tests/shell/lib/perf_has_symbol.sh index 5d59c32ae3e7..561c93b75d77 100644 --- a/tools/perf/tests/shell/lib/perf_has_symbol.sh +++ b/tools/perf/tests/shell/lib/perf_has_symbol.sh @@ -3,7 +3,7 @@ perf_has_symbol() { - if perf test -vv "Symbols" 2>&1 | grep "[[:space:]]$1$"; then + if perf test -vv -F "Symbols" 2>&1 | grep "[[:space:]]$1$"; then echo "perf does have symbol '$1'" return 0 fi -- 2.43.0.687.g38aa6559b0-goog