From nobody Fri Jan 2 03:12:47 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A28C6CDB465 for ; Mon, 16 Oct 2023 09:35:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231165AbjJPJfC (ORCPT ); Mon, 16 Oct 2023 05:35:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59704 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229666AbjJPJfA (ORCPT ); Mon, 16 Oct 2023 05:35:00 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5C09D97; Mon, 16 Oct 2023 02:34:58 -0700 (PDT) Received: from kwepemm000003.china.huawei.com (unknown [172.30.72.56]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4S8Bhv13P1z15Npd; Mon, 16 Oct 2023 17:32:15 +0800 (CST) Received: from ubuntu2204.huawei.com (10.67.174.22) by kwepemm000003.china.huawei.com (7.193.23.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Mon, 16 Oct 2023 17:34:54 +0800 From: Yang Jihong To: , , , , , , , , , , CC: Subject: [PATCH] perf pmu: Filter out search events table of software pmu in perf_pmu__lookup() Date: Mon, 16 Oct 2023 09:33:09 +0000 Message-ID: <20231016093309.726436-1-yangjihong1@huawei.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.67.174.22] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To kwepemm000003.china.huawei.com (7.193.23.66) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" For software pmu, the events_table is empty, reducing unnecessary search. Signed-off-by: Yang Jihong --- tools/perf/util/pmu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 6428e2648289..59c8394a4efa 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -1033,7 +1033,8 @@ struct perf_pmu *perf_pmu__lookup(struct list_head *p= mus, int dirfd, const char pmu->id =3D pmu_id(name); pmu->max_precise =3D pmu_max_precise(dirfd, pmu); pmu->alias_name =3D pmu_find_alias_name(pmu, dirfd); - pmu->events_table =3D perf_pmu__find_events_table(pmu); + if (!perf_pmu__is_software(pmu)) + pmu->events_table =3D perf_pmu__find_events_table(pmu); pmu_add_sys_aliases(pmu); list_add_tail(&pmu->list, pmus); =20 --=20 2.34.1