From mboxrd@z Thu Jan 1 00:00:00 1970 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=-10.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 F27C2C433E0 for ; Sun, 19 Jul 2020 18:14:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D283922482 for ; Sun, 19 Jul 2020 18:14:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595182453; bh=BASGzfqdf9+XlVgcEcKGyQkMmvDFLgC/+mBMqalTiQA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=vbu6F5TnsbikAtfnXyzmA5Th9dhdvSxP8B7dpzJ0IAgGEbMcbZsUK7r6zuzENu2Gx 9uM/DrvGKMuCfHAq6ve7NrJx7XaM2tawUx5C8XMGm5PxzWehOZcsYm2RW4skLASkh1 swRecGqJhLOc/U1cud8xskVMAX7RH8hRBU9iHCQw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726932AbgGSSOM convert rfc822-to-8bit (ORCPT ); Sun, 19 Jul 2020 14:14:12 -0400 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:49640 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726714AbgGSSOL (ORCPT ); Sun, 19 Jul 2020 14:14:11 -0400 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-481-p9atM9NlOvGJkcfVR9Furw-1; Sun, 19 Jul 2020 14:14:04 -0400 X-MC-Unique: p9atM9NlOvGJkcfVR9Furw-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 366C410059AA; Sun, 19 Jul 2020 18:14:02 +0000 (UTC) Received: from krava.redhat.com (unknown [10.40.192.53]) by smtp.corp.redhat.com (Postfix) with ESMTP id 57CF2872E1; Sun, 19 Jul 2020 18:13:59 +0000 (UTC) From: Jiri Olsa To: Arnaldo Carvalho de Melo Cc: Ian Rogers , lkml , Ingo Molnar , Namhyung Kim , Alexander Shishkin , Peter Zijlstra , Michael Petlan , Andi Kleen , Kajol Jain , John Garry , "Paul A. Clarke" , Stephane Eranian Subject: [PATCH 11/19] perf metric: Compute referenced metrics Date: Sun, 19 Jul 2020 20:13:12 +0200 Message-Id: <20200719181320.785305-12-jolsa@kernel.org> In-Reply-To: <20200719181320.785305-1-jolsa@kernel.org> References: <20200719181320.785305-1-jolsa@kernel.org> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: kernel.org Content-Type: text/plain; charset=WINDOWS-1252 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Adding computation (expr__parse call) of referenced metric at the point when it needs to be resolved during the parent metric computation. Once the inner metric is computed, the result is stored and used if there's another usage of that metric. Acked-by: Ian Rogers Signed-off-by: Jiri Olsa --- tools/perf/util/expr.c | 31 +++++++++++++++++++++++++++++++ tools/perf/util/expr.h | 3 +++ tools/perf/util/expr.y | 4 ++-- 3 files changed, 36 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c index d3997c2b4a90..a346ca590513 100644 --- a/tools/perf/util/expr.c +++ b/tools/perf/util/expr.c @@ -112,6 +112,7 @@ int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref) */ data_ptr->ref.metric_name = ref->metric_name; data_ptr->ref.metric_expr = ref->metric_expr; + data_ptr->ref.counted = false; data_ptr->is_ref = true; ret = hashmap__set(&ctx->ids, name, data_ptr, @@ -133,6 +134,34 @@ int expr__get_id(struct expr_parse_ctx *ctx, const char *id, return hashmap__find(&ctx->ids, id, (void **)data) ? 0 : -1; } +int expr__resolve_id(struct expr_parse_ctx *ctx, const char *id, + struct expr_id_data **datap) +{ + struct expr_id_data *data; + + if (expr__get_id(ctx, id, datap) || !*datap) { + pr_debug("%s not found\n", id); + return -1; + } + + data = *datap; + + pr_debug2("lookup: is_ref %d, counted %d, val %f: %s\n", + data->is_ref, data->ref.counted, data->val, id); + + if (data->is_ref && !data->ref.counted) { + data->ref.counted = true; + pr_debug("processing metric: %s ENTRY\n", id); + if (expr__parse(&data->val, ctx, data->ref.metric_expr, 1)) { + pr_debug("%s failed to count\n", id); + return -1; + } + pr_debug("processing metric: %s EXIT: %f\n", id, data->val); + } + + return 0; +} + void expr__del_id(struct expr_parse_ctx *ctx, const char *id) { struct expr_id_data *old_val = NULL; @@ -173,6 +202,8 @@ __expr__parse(double *val, struct expr_parse_ctx *ctx, const char *expr, void *scanner; int ret; + pr_debug2("parsing metric: %s\n", expr); + ret = expr_lex_init_extra(&scanner_ctx, &scanner); if (ret) return ret; diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h index 81d04ff7f857..9ed208d93418 100644 --- a/tools/perf/util/expr.h +++ b/tools/perf/util/expr.h @@ -23,6 +23,7 @@ struct expr_id_data { struct { const char *metric_name; const char *metric_expr; + bool counted; } ref; }; @@ -42,6 +43,8 @@ int expr__add_id_val(struct expr_parse_ctx *ctx, const char *id, double val); int expr__add_ref(struct expr_parse_ctx *ctx, struct metric_ref *ref); int expr__get_id(struct expr_parse_ctx *ctx, const char *id, struct expr_id_data **data); +int expr__resolve_id(struct expr_parse_ctx *ctx, const char *id, + struct expr_id_data **datap); int expr__parse(double *final_val, struct expr_parse_ctx *ctx, const char *expr, int runtime); int expr__find_other(const char *expr, const char *one, diff --git a/tools/perf/util/expr.y b/tools/perf/util/expr.y index 0d4f5d324be7..d34b370391c6 100644 --- a/tools/perf/util/expr.y +++ b/tools/perf/util/expr.y @@ -88,11 +88,11 @@ expr: NUMBER | ID { struct expr_id_data *data; - if (expr__get_id(ctx, $1, &data) || !data) { - pr_debug("%s not found\n", $1); + if (expr__resolve_id(ctx, $1, &data)) { free($1); YYABORT; } + $$ = data->val; free($1); } -- 2.25.4