From nobody Mon Feb 9 12:01:50 2026 Received: from mail-yb1-f202.google.com (mail-yb1-f202.google.com [209.85.219.202]) (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 A9E2614A4F2 for ; Fri, 16 Feb 2024 23:55:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708127722; cv=none; b=qCz/DtSL7v/8fK/xgBzHma2JUfuENJdtb1qLLVaPG9fNhJ6b2O+Xj5bRCABfjN3b31Qj/4mP7EqbgHr+QPgz1cC9ra6RtfFRO3nxsV2XOd6pPKpjUeQ7lPjhXm+ypAeWPL9zINWFQMQjPV/2a3xrfme77KiUphZ90fNP2CKm+Q4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708127722; c=relaxed/simple; bh=9QHqj0EQvOX6+a6MNptism09KshtnOJS+VQ0pDYpZf8=; h=Date:In-Reply-To:Message-Id:Mime-Version:References:Subject:From: To:Content-Type; b=eOTevSDhb8Rk536hXm4L0KBCQ1iW6CQEz0XoIOAAmoJlQsgaAqx0cNMySdOmgUk7KzkigNwnpCSGapdqzD+RdKHQPkxzkvmjzKw7spDUqDEIKUV7cgdI6uTXPR/vYMYdkXtaP7ahOwXQ3hqF7z6FmENRbGl3luxgGLjhvCFD8FA= 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=Tk0vz6RX; arc=none smtp.client-ip=209.85.219.202 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="Tk0vz6RX" Received: by mail-yb1-f202.google.com with SMTP id 3f1490d57ef6-dbf618042daso4283267276.0 for ; Fri, 16 Feb 2024 15:55:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1708127719; x=1708732519; 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=OwHudnCNl5wfpV2IMol1tp79ctLuVP/i5n4Lz8j3mXY=; b=Tk0vz6RXDKQnhcGr+DXY5W/BPJuZhyPUfT2SOUMyg/oXvpHj+Vdv+ABuPQw9kZehBM XIkmBgFT3cf9/Fqwi0+DhwCSqnnHhY82jVdYupN5nV2yEOp5e2XY8bxgApYeKN/f7G9a umFtZlghzhPR3SB322PueKQWg7GlWlPlfp5B2ubjSiCavMTE5WEcinVnDl+/C4h2OSxl Zin/X5QIDBNnE9lhKOjuz/xaeGPsVmLf8iI6gaH93RHqhZ+5K4weHb8ouvtww+04fNDF bndnB+JErGtBPvh6n35SCu5Vk/+j/BXzdmxS6nlF/MI1xJ24EGloLbeDTatxaJk6BA2t AgCw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1708127719; x=1708732519; 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=OwHudnCNl5wfpV2IMol1tp79ctLuVP/i5n4Lz8j3mXY=; b=qEnYx7DWbqxJrQHljExgDIcRBKsHB77W2Yjk3FxLGy+ClioDr3IY7X1TfDDkquUvY+ g4jiFRNtWAav9lHWiSkzk2Qv5nnskkDj21DX1tuSJ5E2ZtHWGmzhRkYGL5bgYjmfch9v +xaahaocl3z5bIqvWb6tJmiV7Ka2xJi6l9LY4iVRYz7fuekFM4/JjeB+Sn6KIyLOW+zE Bmolw43rTUAlAFrINt8zhUtqw9GmYLUfUMB85FBBWNEokMfFZZ52FCR9HvFyfHBM6B/i tv6+CJwm7grBsX8Bh0sMeZUNryIrpBk+8RvOgvd65hPx2NU69dgtS0dL69LGlhnnewbv IqvQ== X-Forwarded-Encrypted: i=1; AJvYcCXJcOjlVuAdd5S2225pgZso57Ail+ImJOkpe+Uojd1p34raEClsRflr+fXAjsCSHNYs/DIzRpqY7TJnDbIRHBjrS9dFDItUyp6nr6Ne X-Gm-Message-State: AOJu0YwCZk9SGNqlZ277SxsE60WAMk2fAaaqfv+X0KUeE7AHmrmjmqa7 1HTm46ZwzeuPs+vxyhXSy4AKVZpeWSc7c6CBZwTKKw/uvR14CelqSnQ3NdwIttBjtacTo89NgOh boScU/A== X-Google-Smtp-Source: AGHT+IG8QRb2Q7jBDqZB4i9cqOAXtHSKaGeMrSsEOLiLdKXk40XnzjXZ0NQyadsz7ftlgTYp32osL3I2Y+06 X-Received: from irogers.svl.corp.google.com ([2620:15c:2a3:200:4b5c:352:4272:e34e]) (user=irogers job=sendgmr) by 2002:a05:6902:729:b0:dc2:5273:53f9 with SMTP id l9-20020a056902072900b00dc2527353f9mr224067ybt.1.1708127719606; Fri, 16 Feb 2024 15:55:19 -0800 (PST) Date: Fri, 16 Feb 2024 15:51:57 -0800 In-Reply-To: <20240216235203.229256-1-irogers@google.com> Message-Id: <20240216235203.229256-4-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240216235203.229256-1-irogers@google.com> X-Mailer: git-send-email 2.44.0.rc0.258.g7320e95886-goog Subject: [PATCH v5 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 , Athira Jajeev , James Clark , Kan Liang , Yang Jihong , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, llvm@lists.linux.dev Content-Transfer-Encoding: quoted-printable 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. Acked-by: Adrian Hunter 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/tes= ts/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 @@ =20 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 --=20 2.44.0.rc0.258.g7320e95886-goog