From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="UMiZWiLU" Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.93]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0AC2FCE; Tue, 12 Dec 2023 15:03:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1702422204; x=1733958204; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=/mreCn63iLKWynb3qZDzR2PmBkSu28+YLN6NZmj2X4Y=; b=UMiZWiLUlCtoUjX3xiLrD26aMWwGfq6vSTLR22Hb1xYNIRAdOKB0azAF viFlbzFDaVm8M5cOs+Ps5a946z0GzTTIpZAwHhW4wp2w2kEi380VcBUdV IPgpYle1W6NQXHfebVlfIi608BxblMKWtnLmNm5pVDgknGi0zZ0bw8Ong /mUmKv2pUD7GMnKF61IZMHOO7K+HvQYHf8HDjYH8Zj9CGH9nS87L4bvAr xNcU8zaxCz4d5VsM1oW5r+lbzBa2ea/j1NR0uiNSxBkMYypn4+/8l3nlx F0Z+3NsRpLOm6GxesPioZiIbCnWy6F+7kFF1H18dwvn+LYKvJrcx6Wfk9 g==; X-IronPort-AV: E=McAfee;i="6600,9927,10922"; a="392055984" X-IronPort-AV: E=Sophos;i="6.04,271,1695711600"; d="scan'208";a="392055984" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Dec 2023 15:02:55 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10922"; a="864392016" X-IronPort-AV: E=Sophos;i="6.04,271,1695711600"; d="scan'208";a="864392016" Received: from node-10329.jf.intel.com ([10.54.34.22]) by FMSMGA003.fm.intel.com with ESMTP; 12 Dec 2023 15:02:53 -0800 From: weilin.wang@intel.com To: weilin.wang@intel.com, Ian Rogers , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Adrian Hunter , Kan Liang Cc: linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, Perry Taylor , Samantha Alt , Caleb Biggers , Mark Rutland , Yang Jihong Subject: [RFC PATCH v3 10/18] perf stat: Add build string function and topdown events handling in hardware-grouping Date: Tue, 12 Dec 2023 15:02:16 -0800 Message-Id: <20231212230224.1473300-12-weilin.wang@intel.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20231212230224.1473300-1-weilin.wang@intel.com> References: <20231212230224.1473300-1-weilin.wang@intel.com> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Weilin Wang Add the function to generate final grouping strings. This function is very similar to the existing metricgroup__build_event_string() function. The difference is that the input data includes a list of grouping lists. Signed-off-by: Weilin Wang --- tools/perf/util/metricgroup.c | 96 +++++++++++++++++++++++++++++++++-- 1 file changed, 93 insertions(+), 3 deletions(-) diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c index 9d06fe4488dc..5d9ed22963be 100644 --- a/tools/perf/util/metricgroup.c +++ b/tools/perf/util/metricgroup.c @@ -1899,6 +1899,96 @@ static int assign_event_grouping(struct metricgroup__event_info *e, return ret; } +static int hw_aware_metricgroup__build_event_string(struct list_head *group_strs, + const char *modifier, + struct list_head *groups) +{ + struct metricgroup__pmu_group_list *p; + struct metricgroup__group *g; + struct metricgroup__group_events *ge; + bool no_group = true; + int ret = 0; + +#define RETURN_IF_NON_ZERO(x) do { if (x) return x; } while (0) + + list_for_each_entry(p, groups, nd) { + list_for_each_entry(g, &p->group_head, nd) { + struct strbuf *events; + struct metricgroup__group_strs *new_group_str = + malloc(sizeof(struct metricgroup__group_strs)); + + if (!new_group_str) + return -ENOMEM; + strbuf_init(&new_group_str->grouping_str, 0); + events = &new_group_str->grouping_str; + ret = strbuf_addch(events, '{'); + RETURN_IF_NON_ZERO(ret); + no_group = true; + list_for_each_entry(ge, &g->event_head, nd) { + const char *sep, *rsep, *id = ge->event_name; + + pr_debug("found event %s\n", id); + + /* Separate events with commas and open the group if necessary. */ + if (!no_group) { + ret = strbuf_addch(events, ','); + RETURN_IF_NON_ZERO(ret); + } + /* + * Encode the ID as an event string. Add a qualifier for + * metric_id that is the original name except with characters + * that parse-events can't parse replaced. For example, + * 'msr@tsc@' gets added as msr/tsc,metric-id=msr!3tsc!3/ + */ + sep = strchr(id, '@'); + if (sep) { + ret = strbuf_add(events, id, sep - id); + RETURN_IF_NON_ZERO(ret); + ret = strbuf_addch(events, '/'); + RETURN_IF_NON_ZERO(ret); + rsep = strrchr(sep, '@'); + ret = strbuf_add(events, sep + 1, rsep - sep - 1); + RETURN_IF_NON_ZERO(ret); + ret = strbuf_addstr(events, ",metric-id="); + RETURN_IF_NON_ZERO(ret); + sep = rsep; + } else { + sep = strchr(id, ':'); + if (sep) { + ret = strbuf_add(events, id, sep - id); + RETURN_IF_NON_ZERO(ret); + } else { + ret = strbuf_addstr(events, id); + RETURN_IF_NON_ZERO(ret); + } + ret = strbuf_addstr(events, "/metric-id="); + RETURN_IF_NON_ZERO(ret); + } + ret = encode_metric_id(events, id); + RETURN_IF_NON_ZERO(ret); + ret = strbuf_addstr(events, "/"); + RETURN_IF_NON_ZERO(ret); + + if (sep) { + ret = strbuf_addstr(events, sep + 1); + RETURN_IF_NON_ZERO(ret); + } + if (modifier) { + ret = strbuf_addstr(events, modifier); + RETURN_IF_NON_ZERO(ret); + } + no_group = false; + } + ret = strbuf_addf(events, "}:W"); + RETURN_IF_NON_ZERO(ret); + pr_debug("events-buf: %s\n", events->buf); + list_add_tail(&new_group_str->nd, group_strs); + } + } + return ret; +#undef RETURN_IF_NON_ZERO +} + /** * create_grouping - Create a list of groups and place all the events of * event_info_list into these groups. @@ -1910,8 +2000,8 @@ static int assign_event_grouping(struct metricgroup__event_info *e, */ static int create_grouping(struct list_head *pmu_info_list, struct list_head *event_info_list, - struct list_head *groupings __maybe_unused, - const char *modifier __maybe_unused) + struct list_head *groupings, + const char *modifier) { int ret = 0; struct metricgroup__event_info *e; @@ -1927,6 +2017,7 @@ static int create_grouping(struct list_head *pmu_info_list, if (ret) goto out; } + ret = hw_aware_metricgroup__build_event_string(groupings, modifier, &groups); out: metricgroup__free_group_list(&groups); return ret; @@ -1957,7 +2048,6 @@ static int hw_aware_build_grouping(struct expr_parse_ctx *ctx __maybe_unused, const char *id = cur->pkey; pr_debug("found event %s\n", id); - ret = get_metricgroup_events(id, etable, &event_info_list); if (ret) goto err_out; -- 2.39.3