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 4D5243F8FC for ; Fri, 1 Dec 2023 23:50:45 +0000 (UTC) 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="YTevSK11" Received: by mail-yw1-f202.google.com with SMTP id 00721157ae682-5c87663a873so39464827b3.2 for ; Fri, 01 Dec 2023 15:50:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1701474644; x=1702079444; 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=1mumLSgmv33VvcRWr1T4zCbxKl06nV2/FpT8+bbjZvo=; b=YTevSK11l6xP/PvJqSNXT8renFWiqZJ0GCWUHZHb1wkR+dM8qS/f98gI/rLmfK9OQU yZb4CRi0SfGX+sFUKjQPWwWZtYyJL40OXHVEm+yYgyUwDcTKNrOjPvly5LVuYmiK4a6i uuTMPCkXzWsNkUeNxq4ScPAE3OmEisWhgTmxiqYcYit9p5YnPKQ4ii4SQlygM535nqhU aO3QyFbd6W9HZaBEl+LsaialB4OpLvl44VUluQ6+JW2gfY/HAHUK+31SvxRDyy4FNWp4 EX+HGvUAPDcKK6rs4ndFaenJxuETZ0SOn7DP0npqqpzh4uaroAVQ0IDRlvzl85/8Yrb0 eo2A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701474644; x=1702079444; 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=1mumLSgmv33VvcRWr1T4zCbxKl06nV2/FpT8+bbjZvo=; b=J5pMEei5pW2Qxs4c/Hi6lJ1Zt0GiHlkMPJBLFuu+DXId9Cu7s6F4cc6uNnOWg2l1dk tlQgaA//7jVWmqrEvZhyFp1ZvVa4dMYdqA6/aXKfrtZ8OWybRP1sk1AXXmRdT8Nxw8If xu5NW0E50re6F3D/6hHkSDKrvwJOOApT+7CZdU1MBhLkt2CPHAZ4qYvubcQvSfl1w0zJ 3vRH+NjLbLKr9N5+ESHKH1Y5w6RN6h/5YZDquqeOQkb/yrsWJxNQJHFdQt/dHm0tMTyn 3WbNRhmM+p6LHoAgfjNhNkkjJAACnC9Z6vX2D+HaqrcO0qxIvLIWNM018s04aELcNkbt 843A== X-Gm-Message-State: AOJu0YxTEvNf25KmyDCf5zdwNpPScCJ7q3JW3NKBQI7hj5qwXm+uvLBH tKnBcog27qlutF2Hdkam3OvDqsxvMEoM X-Google-Smtp-Source: AGHT+IGWRlInLywjlQJmaHodIvzIlFUD3Gt7blh1cNR88fx8scsrg22BeeHPNTZ+X7DF2opsxPQDN/rgdj2g X-Received: from irogers.svl.corp.google.com ([2620:15c:2a3:200:df3:224b:7b7f:efc5]) (user=irogers job=sendgmr) by 2002:a05:690c:2849:b0:5d4:1b2d:f43f with SMTP id ed9-20020a05690c284900b005d41b2df43fmr125134ywb.6.1701474644325; Fri, 01 Dec 2023 15:50:44 -0800 (PST) Date: Fri, 1 Dec 2023 15:50:25 -0800 In-Reply-To: <20231201235031.475293-1-irogers@google.com> Message-Id: <20231201235031.475293-3-irogers@google.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20231201235031.475293-1-irogers@google.com> X-Mailer: git-send-email 2.43.0.rc2.451.g8631bc7472-goog Subject: [PATCH v1 3/9] perf tests: Avoid fork in perf_has_symbol test From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Ian Rogers , Adrian Hunter , Nathan Chancellor , Nick Desaulniers , Tom Rix , Ravi Bangoria , James Clark , Kan Liang , John Garry , 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 --- 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.rc2.451.g8631bc7472-goog