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 5136B1119B 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=DDEAtdkWHdkChjP2N2S6ac+dMOj9jvUJ8erW0f7whThBlJb8Ghps1S4MUKWN+kcLdfMvtrYqPEJVk8ucteAY03f44EVn/CvdMNkjEgPCsj69fqvRiYZA9wh01L41FbXyIvQ+MK615BnYLxiP5opXlPzQflfhGPKkGiJ3ieh0aDk= 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=ka1HKHnw; 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="ka1HKHnw" Received: by mail-yw1-f202.google.com with SMTP id 00721157ae682-6079e4ac418so16008767b3.0 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=vger.kernel.org; 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=ka1HKHnwUZf/VtZmg13XfpuL356/CJEiYDRvGxg8or1taZebth0hH+3EF/v2bsJ1K/ T6HJTlUU9Xj9GUPg4+Jh0hiaxXlC53GVqNGHmIhMOOXKpWEMQiSvm5P/WfCWaNItYR/i c2N6g4fgB6wDiWqFCQjUNHfWzYwLtpCzVVJLyKo2oFfUieIF1vlPOU1VTYfI8RVC/1Rx WmNflBbWD0iBrarDoOFTfkuuH5WEDHNhQbFC4ehOGJIepaez3U+7mVMY6+Ut7lXRTCWv O0e39iaA27ZfMz1noSy6ESsD2RsnuCm2L9do1rqEHImu0PYWzBCHXfeW/2sPgYWVvzRG XNbg== 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=YoviDEbHO6oJa2wQSpdcdHRH8VzkcYoQG4OnpcnjfbQyfchoVv54doZelGRq5DX+W9 r8fjxJUNndLJLzr33yfF5czbycAd9FiVAT8QEFYASpz2CiP9/rUS+u6TTucz3MAVuOKI +xsY7WA0cMALhCqUY1vy9nRgXWbqKs3+vNOplzNqmMFnSv145V4NNwDzeFyErPy1kEXy JFJ/DbXLDq6Oj1brBUsfQj6HHbG6JO4ZK+WzSJa8JrtjYmVRLmoCwpit8qj0a7AY6CZh DFJXUQXvcoMEqP1Nwp5jyR2bMRj1nxDlJ9v7F6aWr3Beka+WwRl31tiT5Pi1lIxz+x7Y Grlw== X-Forwarded-Encrypted: i=1; AJvYcCXYPu6KuIuy+hvYKF/91FkRHonUxCDApO8UK04unVObBeWiF3T0gEcULSJgeJyDBng7O4yALrw7nd+ZeTpVk0ar3YtbJbqTukafNq4IskCRfw== X-Gm-Message-State: AOJu0YxB1MbvgmxKtl+LvDMeBWMt2f9Z3Ktpcc/kjKXKqz1ppiJNmtX0 vpCm84wm6fwItzTw0gwkZ7rGd+7snbkqWBvqrF3Av+w29BHnFbG7Ua/l48FSK0mrhG/L0xoeJ4n iX8pVvQ== 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: linux-perf-users@vger.kernel.org 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