From patchwork Fri Nov 6 12:35:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Garry X-Patchwork-Id: 11887083 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AF3DEC2D0A3 for ; Fri, 6 Nov 2020 12:41:51 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2919E20639 for ; Fri, 6 Nov 2020 12:41:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="bYqR7vjG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2919E20639 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-ID:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=paOIgxRzCCGW+Z9Q6p/gPXpCDwldjpgIqha+SmmN5LU=; b=bYqR7vjGYavTHHRoMY1E5fsSl ixTGLoUeXbZf85eH8QAgBLqen75gKLFswnxT5tnVKnBpJMdwr3Z7zA10/rtXmoAZNWPpcNSCj02YY vUavlPXN21pxsS8hXE17SYTFYlb8zs+q63DzIIPLVk6+EomF8ZEjU7II/CHfx9FC+M/7QDzcZP+Vb Rl4izNjq71pW+0s4YX/vKNj5z7B8oigS+MdfvLOI6+BU6MQyuMowfRxOQGp89NrgtjBL8fhPvIjoK XKSpiAjzDz3nq8Cz7uAzQln+jtj5pIIlQG/cnI/vITtnlOfDEYmJajtpZ7cPCvxqzoJNayXq9ZtlF P1jIJ6piA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kb13V-0004Nz-SF; Fri, 06 Nov 2020 12:41:25 +0000 Received: from szxga05-in.huawei.com ([45.249.212.191]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kb12a-0003wl-VY for linux-arm-kernel@lists.infradead.org; Fri, 06 Nov 2020 12:40:51 +0000 Received: from DGGEMS414-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4CSKjC3h66zLvMR; Fri, 6 Nov 2020 20:39:59 +0800 (CST) Received: from localhost.localdomain (10.69.192.58) by DGGEMS414-HUB.china.huawei.com (10.3.19.214) with Microsoft SMTP Server id 14.3.487.0; Fri, 6 Nov 2020 20:40:00 +0800 From: John Garry To: , , , , , , , , , , Subject: [PATCH RFC v5 09/13] perf metricgroup: Fix metrics using aliases covering multiple PMUs Date: Fri, 6 Nov 2020 20:35:49 +0800 Message-ID: <1604666153-4187-10-git-send-email-john.garry@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1604666153-4187-1-git-send-email-john.garry@huawei.com> References: <1604666153-4187-1-git-send-email-john.garry@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.58] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201106_074050_854650_57A6250E X-CRM114-Status: GOOD ( 10.65 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, John Garry , qiangqing.zhang@nxp.com, linuxarm@huawei.com, zhangshaokun@hisilicon.com, linux-imx@nxp.com, kjain@linux.ibm.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Support for metric expressions using aliases which cover multiple PMUs is broken. Consider the following test metric expression: "MetricExpr": "UNC_CBO_XSNP_RESPONSE.MISS_XCORE * UNC_CBO_XSNP_RESPONSE.MISS_EVICTION" When used on my broadwell, "perf stat" gives: unc_cbo_xsnp_response.miss_eviction -> uncore_cbox_1/umask=0x81,event=0x22/ unc_cbo_xsnp_response.miss_eviction -> uncore_cbox_0/umask=0x81,event=0x22/ unc_cbo_xsnp_response.miss_xcore -> uncore_cbox_1/umask=0x41,event=0x22/ unc_cbo_xsnp_response.miss_xcore -> uncore_cbox_0/umask=0x41,event=0x22/ Control descriptor is not initialized unc_cbo_xsnp_response.miss_eviction: 3645925 1000850523 1000850523 unc_cbo_xsnp_response.miss_xcore: 106850 1000850523 1000850523 Performance counter stats for 'system wide': 3,645,925 unc_cbo_xsnp_response.miss_eviction # 389567086250.00 test_metric_inc 106,850 unc_cbo_xsnp_response.miss_xcore 1.000883096 seconds time elapsed Notice that only the results from one PMU are included. Fix the logic of find_evsel_group() to enable events which apply to multiple PMUs, by checking if the event pmu_name matches that of the metric event. With that, "perf stat" now gives: unc_cbo_xsnp_response.miss_eviction -> uncore_cbox_1/umask=0x81,event=0x22/ unc_cbo_xsnp_response.miss_eviction -> uncore_cbox_0/umask=0x81,event=0x22/ unc_cbo_xsnp_response.miss_xcore -> uncore_cbox_1/umask=0x41,event=0x22/ unc_cbo_xsnp_response.miss_xcore -> uncore_cbox_0/umask=0x41,event=0x22/ Control descriptor is not initialized unc_cbo_xsnp_response.miss_eviction: 4237983 1000904100 1000904100 unc_cbo_xsnp_response.miss_xcore: 218643 1000904100 1000904100 unc_cbo_xsnp_response.miss_eviction: 4254148 1000902629 1000902629 unc_cbo_xsnp_response.miss_xcore: 213352 1000902629 1000902629 Performance counter stats for 'system wide': 4,237,983 unc_cbo_xsnp_response.miss_eviction # 3668558131345.00 test_metric_inc 218,643 unc_cbo_xsnp_response.miss_xcore 4,254,148 unc_cbo_xsnp_response.miss_eviction 213,352 unc_cbo_xsnp_response.miss_xcore 1.000938151 seconds time elapsed Signed-off-by: John Garry --- tools/perf/util/metricgroup.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c index 060454a17293..da979dd50809 100644 --- a/tools/perf/util/metricgroup.c +++ b/tools/perf/util/metricgroup.c @@ -279,7 +279,9 @@ static struct evsel *find_evsel_group(struct evlist *perf_evlist, * when then group is left. */ if (!has_constraint && - ev->leader != metric_events[i]->leader) + ev->leader != metric_events[i]->leader && + !strcmp(ev->leader->pmu_name, + metric_events[i]->leader->pmu_name)) break; if (!strcmp(metric_events[i]->name, ev->name)) { set_bit(ev->idx, evlist_used);