From nobody Fri Dec 19 16:08:26 2025 Received: from mail-pg1-f201.google.com (mail-pg1-f201.google.com [209.85.215.201]) (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 D7BDD20E719 for ; Mon, 19 May 2025 19:52:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747684329; cv=none; b=rMUkq84tLw4vZHuyYe1AWCATFMqb2YINgGJt+2WXvZ6qp39XePEmSOZfjfPwXCRYPm5XLVptCq9ISQpdjKBd58xfQZNPVPtHxRt+zaFOAGrzHi02BKlgYnc6SB/TQmVG6SUxOepWE691BTDJPfnS2yAxFMHs6Cu+DYr8jalgcnE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747684329; c=relaxed/simple; bh=F91uGFNuS9ze+k4o3LzvwL3EVQh99OWk2GUUQpppF5w=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=nU2VRoi3hDAJ7bchYTkrrI/7jVDZtWsJkIM91IXECGbhKE3H6IK31PJ0sEJjyoePpqTQ0Ln9m0SLOz4f8AW5DPPX/ZSBcgMtZHDdfcm2QL38fbgBu2MMQyqfAzterFzZxP3TOqtytK52JPVsUEjasWeo4gBsRsiupLcrioThb34= 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=wh1i6VJg; arc=none smtp.client-ip=209.85.215.201 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="wh1i6VJg" Received: by mail-pg1-f201.google.com with SMTP id 41be03b00d2f7-b1ffc678adfso3041311a12.0 for ; Mon, 19 May 2025 12:52:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1747684327; x=1748289127; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=B88KQis10sHy3aFQlUkzgjmtvbJRuQpEiX14gbvKHas=; b=wh1i6VJgacMSkeorv8+ocAWh3vUr0QpUnauM5PUBa4Su5e6OXTZXAFjT4M3yrFI72R VwWC/xuf9sm/T2CcVQYHATgs8kvwOlGNdzMwV2Ue0+6v69c1iT5hstZxqVgvTPx+BAkf vdVdOKLoh0TybMUvCA6ZBQX2u8+wjfHsMasLg+VrbSrDX/62x2MSHPP4WzN01PiUyxDI xXeBEySYmJ88Sto8hEiPlwnZsPrOUWL7etOAkbMeFFMNhK6FE5dKAdRIzHN3zVZA9gcn g1XygW655CW9ky0hs1s4XdvDMY5pFNy1EvT4EA/V0uDBOa1TVxN4BMIr1tj4rM1ef1la tSDQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1747684327; x=1748289127; h=cc: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=B88KQis10sHy3aFQlUkzgjmtvbJRuQpEiX14gbvKHas=; b=n79nQwAfQT4BXbMojtKW087Ac7T0o2YBihYrdH9/l1B+io7APGmcFXL3KxX8kKhIki XLNhYSCFTpHUsExcyvJ69WnDbdseCE4UrSYqbTY9n+rX4tAKB7RfTvbW1h5aXi7nV20S Pog1TXuQ7oDuLStzNlWey0ZzxncA4ET8NCB8ybY2ZTSU+qqVRZy5g/+jppao8siBc8sc ehROVAT46FBiXhbNr/jjysmiQRx+9WPSWmzz8wuOSJNVZKWcoLyfWzUucaVrFPTn4KSg ZH4KElFK/CmE9MgSuIGCvs8WrXUmfisj2pgTPcmsYEh+U8IShks5CxAkJNBvEsuwaXYD g8QA== X-Forwarded-Encrypted: i=1; AJvYcCVVOhhfLNSLFwFI/dtXGN0bZErSwmoEl1CfqmMgxzlR0YjQXzHlBDEvLfQqGVu0kl8VW5lEhFGbMt7F6Z4=@vger.kernel.org X-Gm-Message-State: AOJu0Ywz3RC1btGkQEcjCL1FwI2u1exfnv5dESz0PpAukphaPCPdnAxU Z3uo1OtSgMMEgp1jMfFXU16qdW9wZfCnqG8rVTQaQDDX3MlQrymbUsSYrs8U3pt9/WA6zN+vpFO wZntoCsg//A== X-Google-Smtp-Source: AGHT+IGNKB0kTAILEX+H7U3c+Jevs+vPzolX2bExHW6YHAb/rS7vZwLc48G926qGoOnOZVWAucjqNObd1hy7 X-Received: from plka5.prod.google.com ([2002:a17:903:f85:b0:22e:154a:6dba]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a17:903:2449:b0:231:c2e8:89df with SMTP id d9443c01a7336-231d4535a98mr219436745ad.28.1747684327179; Mon, 19 May 2025 12:52:07 -0700 (PDT) Date: Mon, 19 May 2025 12:51:39 -0700 In-Reply-To: <20250519195148.1708988-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250519195148.1708988-1-irogers@google.com> X-Mailer: git-send-email 2.49.0.1101.gccaa498523-goog Message-ID: <20250519195148.1708988-3-irogers@google.com> Subject: [PATCH v3 2/7] libperf threadmap: Add perf_thread_map__idx From: Ian Rogers To: Gautam Menghani , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , Howard Chu , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Cc: maddy@linux.ibm.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Allow computation of thread map index from a PID. Note, with a perf_cpu_map the sorted nature allows for a binary search to compute the index which isn't currently possible with a perf_thread_map as they aren't guaranteed sorted. Signed-off-by: Ian Rogers --- tools/lib/perf/include/perf/threadmap.h | 1 + tools/lib/perf/threadmap.c | 12 ++++++++++++ 2 files changed, 13 insertions(+) diff --git a/tools/lib/perf/include/perf/threadmap.h b/tools/lib/perf/inclu= de/perf/threadmap.h index 8b40e7777cea..44deb815b817 100644 --- a/tools/lib/perf/include/perf/threadmap.h +++ b/tools/lib/perf/include/perf/threadmap.h @@ -14,6 +14,7 @@ LIBPERF_API void perf_thread_map__set_pid(struct perf_thr= ead_map *map, int idx, LIBPERF_API char *perf_thread_map__comm(struct perf_thread_map *map, int i= dx); LIBPERF_API int perf_thread_map__nr(struct perf_thread_map *threads); LIBPERF_API pid_t perf_thread_map__pid(struct perf_thread_map *map, int id= x); +LIBPERF_API int perf_thread_map__idx(struct perf_thread_map *map, pid_t pi= d); =20 LIBPERF_API struct perf_thread_map *perf_thread_map__get(struct perf_threa= d_map *map); LIBPERF_API void perf_thread_map__put(struct perf_thread_map *map); diff --git a/tools/lib/perf/threadmap.c b/tools/lib/perf/threadmap.c index 3ca9ba4987fc..db431b036f57 100644 --- a/tools/lib/perf/threadmap.c +++ b/tools/lib/perf/threadmap.c @@ -104,3 +104,15 @@ pid_t perf_thread_map__pid(struct perf_thread_map *map= , int idx) =20 return map->map[idx].pid; } + +int perf_thread_map__idx(struct perf_thread_map *threads, pid_t pid) +{ + if (!threads) + return pid =3D=3D -1 ? 0 : -1; + + for (int i =3D 0; i < threads->nr; ++i) { + if (threads->map[i].pid =3D=3D pid) + return i; + } + return -1; +} --=20 2.49.0.1101.gccaa498523-goog