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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 02EBEC4332F for ; Mon, 14 Nov 2022 18:14:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238378AbiKNSOv (ORCPT ); Mon, 14 Nov 2022 13:14:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42982 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238345AbiKNSOM (ORCPT ); Mon, 14 Nov 2022 13:14:12 -0500 Received: from mail-pj1-x1049.google.com (mail-pj1-x1049.google.com [IPv6:2607:f8b0:4864:20::1049]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D44392CDD1 for ; Mon, 14 Nov 2022 10:13:55 -0800 (PST) Received: by mail-pj1-x1049.google.com with SMTP id k9-20020a17090a39c900b0021671e97a25so6202908pjf.1 for ; Mon, 14 Nov 2022 10:13:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:from:subject:references:mime-version:message-id:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=05I6atWVl+qVT8yMUMb7x3GwtdO61HeIYnH9Cn+25jQ=; b=HD0dZKX/zpcmKiR0/x22oJSMUWSoBaIB/60Hp+/dGOhcoJl1//+/82X2dORp3TfECX Yq32Gm3pFb/YIlZblDyDYMdQRpMA0nberC8wLLbABDgD9IrhWATnxMgaJtKc3moLicQ7 0iiRwC65/hY6+Oz4heaY3gBkAori2q87o14+ZScxaxs8KRgB4aqZMo9gjHOvmCEIbRqK 6A/2soRIV8ICOzF3tT+/EZhEX/KflLrZSJfPxiUSreLCXORYg7YmLIiYMNc0RvwkGvxw ca3jSWJpDTFN7a9S2r//MNSoV3AqD3N9wfTBc/S3ZCkc2weI+0idGXBB9xICp5rwD2VT WyhQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc: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=05I6atWVl+qVT8yMUMb7x3GwtdO61HeIYnH9Cn+25jQ=; b=B9gpAYzWgsIq6ULXcBfkDFvhB25QONKrStorObWqDYgtthLnnRqafiR65/B3zqUAMc SrWwLDqz9zxw9+ve14PFJvS0UsinhilBO77aHvW0I2A1CfnW+/tYuKYvvOVLc00rqurl 2YJThX2czohpFGUuwpmUcLQWJOnUCetww6wRHOI2PGBYSDbNIBW/q5kjPYBTzCONZQCN GpQ5pRM4PKz6rPpAL63EW/59ExV2uV9Y82oWV92tnsZzU0cO04LKR8DMMtMGLfhO70un j5kwucSSXSfYIrIzph3TTkWc0vKIdq+Ra+spRCK1AmAwMCO571ogIFOrbc3K97fQP6Nj /7mQ== X-Gm-Message-State: ANoB5pmgMcuu8kN858hK66J+X0yybGYBrD4kKebEQ6CBaqk0PX//+t9z 0/Zp1X2y9zZGAetxSTmZQOEJl1wBkNP9 X-Google-Smtp-Source: AA0mqf7RFh4oBFpS+M/FNXJ9nDMA4g0Q4LODgEMYGv782LyaYylghVzEXMsYdbYI6SYTA/jWc/teOs0tvLuQ X-Received: from irogers.svl.corp.google.com ([2620:15c:2d4:203:553:438f:b86a:87f]) (user=irogers job=sendgmr) by 2002:a62:7b53:0:b0:56b:83d3:a22 with SMTP id w80-20020a627b53000000b0056b83d30a22mr14955364pfc.32.1668449635264; Mon, 14 Nov 2022 10:13:55 -0800 (PST) Date: Mon, 14 Nov 2022 10:12:47 -0800 In-Reply-To: <20221114181251.2683871-1-irogers@google.com> Message-Id: <20221114181251.2683871-6-irogers@google.com> Mime-Version: 1.0 References: <20221114181251.2683871-1-irogers@google.com> X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog Subject: [PATCH v2 5/9] perf list: Simplify cache event printing From: Ian Rogers To: Weilin Wang , Perry Taylor , Caleb Biggers , Leo Yan , Adrian Hunter , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Mark Rutland , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Sandipan Das , Kajol Jain , Zhengjun Xing , Kan Liang , Ravi Bangoria , Xin Gao , Rob Herring , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Cc: Stephane Eranian , Ian Rogers Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.org The current code computes an array of cache names then sorts and prints them. Use a strlist to create a list of names that is sorted. Keep the hybrid names, it is unclear how to generalize it, but drop the computation of evt_pmus that is never used. Signed-off-by: Ian Rogers --- tools/perf/util/print-events.c | 132 +++++++-------------------------- 1 file changed, 27 insertions(+), 105 deletions(-) diff --git a/tools/perf/util/print-events.c b/tools/perf/util/print-events.c index fefc025bc259..ff7793944246 100644 --- a/tools/perf/util/print-events.c +++ b/tools/perf/util/print-events.c @@ -206,137 +206,59 @@ void print_sdt_events(const char *subsys_glob, const char *event_glob, int print_hwcache_events(const char *event_glob, bool name_only) { - unsigned int type, op, i, evt_i = 0, evt_num = 0, npmus = 0; - char name[64], new_name[128]; - char **evt_list = NULL, **evt_pmus = NULL; - bool evt_num_known = false; - struct perf_pmu *pmu = NULL; - - if (perf_pmu__has_hybrid()) { - npmus = perf_pmu__hybrid_pmu_num(); - evt_pmus = zalloc(sizeof(char *) * npmus); - if (!evt_pmus) - goto out_enomem; - } + struct strlist *evt_name_list = strlist__new(NULL, NULL); + struct str_node *nd; -restart: - if (evt_num_known) { - evt_list = zalloc(sizeof(char *) * evt_num); - if (!evt_list) - goto out_enomem; + if (!evt_name_list) { + pr_debug("Failed to allocate new strlist for hwcache events\n"); + return -ENOMEM; } - - for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) { - for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) { + for (int type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) { + for (int op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) { /* skip invalid cache type */ if (!evsel__is_cache_op_valid(type, op)) continue; - for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { - unsigned int hybrid_supported = 0, j; - bool supported; + for (int i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { + struct perf_pmu *pmu = NULL; + char name[64]; __evsel__hw_cache_type_op_res_name(type, op, i, name, sizeof(name)); if (event_glob != NULL && !strglobmatch(name, event_glob)) continue; if (!perf_pmu__has_hybrid()) { - if (!is_event_supported(PERF_TYPE_HW_CACHE, - type | (op << 8) | (i << 16))) { - continue; - } - } else { - perf_pmu__for_each_hybrid_pmu(pmu) { - if (!evt_num_known) { - evt_num++; - continue; - } - - supported = is_event_supported( - PERF_TYPE_HW_CACHE, - type | (op << 8) | (i << 16) | - ((__u64)pmu->type << PERF_PMU_TYPE_SHIFT)); - if (supported) { - snprintf(new_name, sizeof(new_name), - "%s/%s/", pmu->name, name); - evt_pmus[hybrid_supported] = - strdup(new_name); - hybrid_supported++; - } - } - - if (hybrid_supported == 0) - continue; - } - - if (!evt_num_known) { - evt_num++; + if (is_event_supported(PERF_TYPE_HW_CACHE, + type | (op << 8) | (i << 16))) + strlist__add(evt_name_list, name); continue; } - - if ((hybrid_supported == 0) || - (hybrid_supported == npmus)) { - evt_list[evt_i] = strdup(name); - if (npmus > 0) { - for (j = 0; j < npmus; j++) - zfree(&evt_pmus[j]); - } - } else { - for (j = 0; j < hybrid_supported; j++) { - evt_list[evt_i++] = evt_pmus[j]; - evt_pmus[j] = NULL; + perf_pmu__for_each_hybrid_pmu(pmu) { + if (is_event_supported(PERF_TYPE_HW_CACHE, + type | (op << 8) | (i << 16) | + ((__u64)pmu->type << PERF_PMU_TYPE_SHIFT))) { + char new_name[128]; + snprintf(new_name, sizeof(new_name), + "%s/%s/", pmu->name, name); + strlist__add(evt_name_list, new_name); } - continue; } - - if (evt_list[evt_i] == NULL) - goto out_enomem; - evt_i++; } } } - if (!evt_num_known) { - evt_num_known = true; - goto restart; - } - - for (evt_i = 0; evt_i < evt_num; evt_i++) { - if (!evt_list[evt_i]) - break; - } - - evt_num = evt_i; - qsort(evt_list, evt_num, sizeof(char *), cmp_string); - evt_i = 0; - while (evt_i < evt_num) { + strlist__for_each_entry(nd, evt_name_list) { if (name_only) { - printf("%s ", evt_list[evt_i++]); + printf("%s ", nd->s); continue; } - printf(" %-50s [%s]\n", evt_list[evt_i++], - event_type_descriptors[PERF_TYPE_HW_CACHE]); + printf(" %-50s [%s]\n", nd->s, event_type_descriptors[PERF_TYPE_HW_CACHE]); } - if (evt_num && pager_in_use()) + if (!strlist__empty(evt_name_list) && pager_in_use()) printf("\n"); -out_free: - evt_num = evt_i; - for (evt_i = 0; evt_i < evt_num; evt_i++) - zfree(&evt_list[evt_i]); - zfree(&evt_list); - - for (evt_i = 0; evt_i < npmus; evt_i++) - zfree(&evt_pmus[evt_i]); - zfree(&evt_pmus); - return evt_num; - -out_enomem: - printf("FATAL: not enough memory to print %s\n", - event_type_descriptors[PERF_TYPE_HW_CACHE]); - if (evt_list) - goto out_free; - return evt_num; + strlist__delete(evt_name_list); + return 0; } static void print_tool_event(const struct event_symbol *syms, const char *event_glob, -- 2.38.1.431.g37b22c650d-goog