From nobody Tue Feb 10 04:12:48 2026 Received: from mail-oa1-f73.google.com (mail-oa1-f73.google.com [209.85.160.73]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DA42122489F for ; Mon, 7 Apr 2025 05:01:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.73 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744002090; cv=none; b=ouf9gTHpCudH8tAqCADbPQIWsMT1ud32vklSL6bRUxE98S+aHSoFjzO/68t5sduxxDc53UqaxaYxBEzMXhzJcsiK9vmz2PE0YNDuEMDkysYpLeZWIU7hNQEHfh784h3c1XTW5ef/bfU9J+uyOCzggsyA6W6ZOI19PADLj5az0vs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744002090; c=relaxed/simple; bh=IFNfdI150vfN3Xo7/oCHlYzJh62CBUFp0b4auUgNBxw=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=LyVArlDCuYu0I39f/MQkvYctSNre7vzLXp78JDBCixGhL/uoaP0vPhahb26IWYJAQmyFoMTPTwLQNmM2I3sZ5BCQYf0uyZlEtIp7yhq4Caa4fMe6z9fUihymx9TB5LN8NIZU+o2sJ7RlBPbHEa1h9WQze1lTRAngt/fBzDLctBE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=MmLGtOgK; arc=none smtp.client-ip=209.85.160.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="MmLGtOgK" Received: by mail-oa1-f73.google.com with SMTP id 586e51a60fabf-2c23beea898so2865567fac.0 for ; Sun, 06 Apr 2025 22:01:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1744002088; x=1744606888; darn=vger.kernel.org; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=TQsKQ1vCjAU+l2hcTiBlNbndjH+ZisU6X+PObJgZnSg=; b=MmLGtOgKgteDHYftzUH7Q9e3SYh4gjvTDcuBkcSzaNajuRUatQQscISiTw0c8h243v SdcU1CwQSR94HigBnDqPqy+ZOeDEbqge3Jx4ECvBpw3QlJHmTUZklKfEaNTvQmWid/Sm tTppPB57HV+kA6GOLNrCQifbEZ6Xo9LHXHXiseUwIzFb5l9mDlzaO6iZMYDk0bRSLuJZ +yEIsYmGw12qyn7VQEch/cWsnwkBp6+Aof8sIVNwzjU26vxHX1DK/m2vt8giC4I4RI/n hRPivP9SIAJDfEE9/te30Tb0dfr8jQ+8dJIMtT+IuciEOYnG7fqmCQ8/ol2dGmh9GqIY 876g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1744002088; x=1744606888; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=TQsKQ1vCjAU+l2hcTiBlNbndjH+ZisU6X+PObJgZnSg=; b=KBZEw1bgG32BAHTjsIgBnKN6IsYqDwUw4YznEcJAGbBEHmQ7pyiB3V4ivJk9hYwOFR YujFiayGcuYLLoLjzCbS2X0sdnd7brRsrOAn5SkShXKDNLqYM6u0I3EVdq43jyA/rfds srANdF/8roefrL3uCM8exLpCT+6pfcswPmNlztlKnR7NrD4U9Y3zB1SNXuDPfs+Tvm9Q OiFqiPaSkWqM8yQADjJEMdCwqS1jUJMZVy3H4ydBUVMbW3wUB7Y7+zTY8YVoXMGiQXpX j/JtrBfaKcB6vOhmMvyDjY7twTsc6sP0NQyespcFICiv1InJBqCKE72BJsfMTTqt9Fim kQWA== X-Forwarded-Encrypted: i=1; AJvYcCUKyho3DXLjuHSTpL/otf6guhUsND3v7UMN4ohyswXiaEbuQXeo54sb6OEjxUJ6rnCOW91nvznKG6zoB+g=@vger.kernel.org X-Gm-Message-State: AOJu0Yz6yNcT/bLMdGhqIVQaedYaSOJsnf+sm7Wl0rG6IsDOv/4btJQu TlrhdnW1q2TW4qAEfhmTQLWLq8jro8H9eXdF7TyRP+D1gCDGasie2AquPeFnAYbjtNMLGTtrJNb 1mcrdFw== X-Google-Smtp-Source: AGHT+IHHRJRJoRVVv373ETzoRN0aw6OQoD6tbuJEgZ3VSq5A9ONhRxoH6jr/k8Z300LMtg7liYoqQzi0ty/2 X-Received: from oacny17.prod.google.com ([2002:a05:6871:7511:b0:2b8:55dd:faa7]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6870:e38e:b0:29d:c832:7ef6 with SMTP id 586e51a60fabf-2cd331bc71cmr4132687fac.39.1744002088039; Sun, 06 Apr 2025 22:01:28 -0700 (PDT) Date: Sun, 6 Apr 2025 22:00:55 -0700 In-Reply-To: <20250407050101.1389825-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250407050101.1389825-1-irogers@google.com> X-Mailer: git-send-email 2.49.0.504.g3bcea36a83-goog Message-ID: <20250407050101.1389825-11-irogers@google.com> Subject: [PATCH v2 10/16] perf intel-tpebs: Add support for updating counts in evsel__tpebs_read From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , Weilin Wang , James Clark , Xu Yang , John Garry , Howard Chu , Levi Yun , Dominique Martinet , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Rename to reflect evsel argument and for consistency with other tpebs functions. Update count from prev_raw_counts when available. Eventually this will allow inteval mode support. Signed-off-by: Ian Rogers --- tools/perf/util/evsel.c | 11 ++------ tools/perf/util/intel-tpebs.c | 52 ++++++++++++++--------------------- tools/perf/util/intel-tpebs.h | 2 +- 3 files changed, 25 insertions(+), 40 deletions(-) diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 554252ed1aab..1d343f51225b 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -1718,11 +1718,6 @@ static int evsel__read_one(struct evsel *evsel, int = cpu_map_idx, int thread) return perf_evsel__read(&evsel->core, cpu_map_idx, thread, count); } =20 -static int evsel__read_retire_lat(struct evsel *evsel, int cpu_map_idx, in= t thread) -{ - return tpebs_set_evsel(evsel, cpu_map_idx, thread); -} - static void evsel__set_count(struct evsel *counter, int cpu_map_idx, int t= hread, u64 val, u64 ena, u64 run, u64 lost) { @@ -1730,8 +1725,8 @@ static void evsel__set_count(struct evsel *counter, i= nt cpu_map_idx, int thread, =20 count =3D perf_counts(counter->counts, cpu_map_idx, thread); =20 - if (counter->retire_lat) { - evsel__read_retire_lat(counter, cpu_map_idx, thread); + if (evsel__is_retire_lat(counter)) { + evsel__tpebs_read(counter, cpu_map_idx, thread); perf_counts__set_loaded(counter->counts, cpu_map_idx, thread, true); return; } @@ -1889,7 +1884,7 @@ int evsel__read_counter(struct evsel *evsel, int cpu_= map_idx, int thread) return evsel__hwmon_pmu_read(evsel, cpu_map_idx, thread); =20 if (evsel__is_retire_lat(evsel)) - return evsel__read_retire_lat(evsel, cpu_map_idx, thread); + return evsel__tpebs_read(evsel, cpu_map_idx, thread); =20 if (evsel->core.attr.read_format & PERF_FORMAT_GROUP) return evsel__read_group(evsel, cpu_map_idx, thread); diff --git a/tools/perf/util/intel-tpebs.c b/tools/perf/util/intel-tpebs.c index e3227646a9cc..452ce3698221 100644 --- a/tools/perf/util/intel-tpebs.c +++ b/tools/perf/util/intel-tpebs.c @@ -415,49 +415,39 @@ int evsel__tpebs_open(struct evsel *evsel) return ret; } =20 - -int tpebs_set_evsel(struct evsel *evsel, int cpu_map_idx, int thread) +int evsel__tpebs_read(struct evsel *evsel, int cpu_map_idx, int thread) { - __u64 val; + struct perf_counts_values *count, *old_count =3D NULL; struct tpebs_retire_lat *t; - struct perf_counts_values *count; + uint64_t val; + + /* Only set retire_latency value to the first CPU and thread. */ + if (cpu_map_idx !=3D 0 || thread !=3D 0) + return 0; + + if (evsel->prev_raw_counts) + old_count =3D perf_counts(evsel->prev_raw_counts, cpu_map_idx, thread); =20 - /* Non reitre_latency evsel should never enter this function. */ - if (!evsel__is_retire_lat(evsel)) - return -1; + count =3D perf_counts(evsel->counts, cpu_map_idx, thread); =20 /* * Need to stop the forked record to ensure get sampled data from the * PIPE to process and get non-zero retire_lat value for hybrid. */ tpebs_stop(); - count =3D perf_counts(evsel->counts, cpu_map_idx, thread); =20 t =3D tpebs_retire_lat__find(evsel); - - /* Set ena and run to non-zero */ - count->ena =3D count->run =3D 1; - count->lost =3D 0; - - if (!t) { - /* - * Set default value or 0 when retire_latency for this event is - * not found from sampling data (record_tpebs not set or 0 - * sample recorded). - */ - count->val =3D 0; - return 0; + val =3D rint(t->val); + + if (old_count) { + count->val =3D old_count->val + val; + count->run =3D old_count->run + 1; + count->ena =3D old_count->ena + 1; + } else { + count->val =3D val; + count->run++; + count->ena++; } - - /* - * Only set retire_latency value to the first CPU and thread. - */ - if (cpu_map_idx =3D=3D 0 && thread =3D=3D 0) - val =3D rint(t->val); - else - val =3D 0; - - count->val =3D val; return 0; } =20 diff --git a/tools/perf/util/intel-tpebs.h b/tools/perf/util/intel-tpebs.h index 5c671181ec60..218a82866cee 100644 --- a/tools/perf/util/intel-tpebs.h +++ b/tools/perf/util/intel-tpebs.h @@ -12,6 +12,6 @@ extern bool tpebs_recording; =20 int evsel__tpebs_open(struct evsel *evsel); void evsel__tpebs_close(struct evsel *evsel); -int tpebs_set_evsel(struct evsel *evsel, int cpu_map_idx, int thread); +int evsel__tpebs_read(struct evsel *evsel, int cpu_map_idx, int thread); =20 #endif /* __INTEL_TPEBS_H */ --=20 2.49.0.504.g3bcea36a83-goog