From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yb1-f202.google.com (mail-yb1-f202.google.com [209.85.219.202]) (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 007D31C68E for ; Sat, 20 Jul 2024 07:46:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721461610; cv=none; b=XUYP4HZWdfVysiAebXz1mRmDkW8iWsfOjs1UCysvceluCoOXjUH9BKwDdpBFz3o39i00y74szOcG1QbAgF9jJ4bOAEXWjCOty9lA4Qf/8WmOlthQUCOspicwA4MqGfEV4EjMKRd4QRHPrqGOiL3yIGm/A47QODPoEr8AoHWwYJY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721461610; c=relaxed/simple; bh=TCkraRgkZ/cWDF55w+lJe2JNLcX3iOyf3fjmZqlM1v8=; h=Date:Message-Id:Mime-Version:Subject:From:To:Content-Type; b=qhRUVLg/KYAiDD2hEbdwZAD0MoizQcYGRwetRUyIsqoW2O/HZ5WGugJb5vPMTPYAsPOpDV1Uz4uAzSnofNKAqJQLgzJRBlD5e1FG7foXfSpgSXsr1tQJQ4rT+azY9wXmAsJx9K3E49r2tXUDtLDulLmv43usZFGNh/U4SJu8mRE= 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=C2ApYbbV; arc=none smtp.client-ip=209.85.219.202 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="C2ApYbbV" Received: by mail-yb1-f202.google.com with SMTP id 3f1490d57ef6-dfa7a8147c3so5836996276.3 for ; Sat, 20 Jul 2024 00:46:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1721461607; x=1722066407; darn=vger.kernel.org; h=to:from:subject:mime-version:message-id:date:from:to:cc:subject :date:message-id:reply-to; bh=Yp3G2O/AMKzgruzp+hIrvoG3w9Lyd6HB8ME50phSljQ=; b=C2ApYbbVT/yk02iOOy8itcbHYnQcN8P/xSBlhnFzfXXsfMhFkUj5R1cF3xgkGFMAhS wdVy0cfBlAIOzWOlGvhjrkjkhs20XjQ8FMDHQnxAJvMFISuBnN2TLF/rjUMycliRFPt9 V3MrPVBEP7e6O61boLd2chZ/UAxBwnHBrhkBiu2KFtkQqZNAWFuS1mEw9rg4ZRQtS/mQ QZGXlu2XdEpmO2bleTNPdMB4pTV8tqkRL2gYybYHwkIc1QBTdDYb6vQ3ofX5IzgByb/a K2qk18Y6trzvqIJthuT1Ihxfo81qCKkDwGjTRE5Gyz41thty1aNR4ivVvRy4hkOOVEnF klYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721461607; x=1722066407; h=to:from:subject:mime-version:message-id:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=Yp3G2O/AMKzgruzp+hIrvoG3w9Lyd6HB8ME50phSljQ=; b=U+AhHq+kNqbKAoCZvRCakb5JljM+0bETyo1/Jk4ma07Dfbv7OlXFKhzgbe/eJinjP5 +FIH8YAZ9ZVqOCDm8/6nfYcLRWqrX92lbdDIDM3LIN09vnI9T44MuuomkkAOdXgN0Ij0 MWgTzyhuVtlOan6SJlxNerIwwxI8BYZxyvPFjbihyUdgnjeNuv8F+WnyELp6D1/HOmoU ZTmQnngTJKr4/WYvCecPkSYKndgaDCelI5pOqKB8jMXUr/PACT1OA1fkr48mr7FU3G9S Ip9VvIht/Ny3B4X3tn2ncf9Oi51u1s3fJOCQU29fVTFz5AzaOpgJvoGv6iOAJP+fEr11 Lg+g== X-Forwarded-Encrypted: i=1; AJvYcCXavSZ+WqCbnp9Fg+To7mVGcTO5ov1B4NxdqvEwsz7psDTFL3CKgcTKGS9rO9yQ+8K7FqT+mazUHM8sFleD9r0Db0dVSB6rj2isFumL X-Gm-Message-State: AOJu0YwmFRIRwSEcrA4EbVu/d2fsNU598nR4KtJwt2P5VW8ZagxxHWOZ qEtmaaKjJ5et0qbdF5rcmXqeuycVm+e2YVZUSlqq7ka8VeIJc2qOmos7hQ4pQLi5BIU/B8Qq1/d rwLDg6Q== X-Google-Smtp-Source: AGHT+IECSiL47Avn+rFt/Lw8pbMrOMAl/W6rko3QnvPj+nApn4mgO2aALZpE+QoJUBwZ98UOHRhfGoOoLw1o X-Received: from irogers.svl.corp.google.com ([2620:15c:2a3:200:5df:6f0f:a93c:ac73]) (user=irogers job=sendgmr) by 2002:a25:902:0:b0:e05:a1b5:adc0 with SMTP id 3f1490d57ef6-e08704570c3mr7212276.10.1721461606800; Sat, 20 Jul 2024 00:46:46 -0700 (PDT) Date: Sat, 20 Jul 2024 00:45:51 -0700 Message-Id: <20240720074552.1915993-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.45.2.1089.g2a221341d9-goog Subject: [PATCH v1 1/2] libperf threadmap: Add ability to find index from pid 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 , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, Andi Kleen , Athira Rajeev Content-Type: text/plain; charset="UTF-8" It is useful to be able to determine the index of thread in a thread map as the index is used in other situations like finding the perf count values. Unlike with perf_cpu_map__idx a binary search can't be performed as the array isn't ordered. Also -1 in the array matches any pid. Signed-off-by: Ian Rogers --- tools/lib/perf/include/internal/threadmap.h | 1 + tools/lib/perf/threadmap.c | 9 +++++++++ 2 files changed, 10 insertions(+) diff --git a/tools/lib/perf/include/internal/threadmap.h b/tools/lib/perf/include/internal/threadmap.h index df748baf9eda..92889d81b6b1 100644 --- a/tools/lib/perf/include/internal/threadmap.h +++ b/tools/lib/perf/include/internal/threadmap.h @@ -19,5 +19,6 @@ struct perf_thread_map { }; struct perf_thread_map *perf_thread_map__realloc(struct perf_thread_map *map, int nr); +int perf_thread_map__idx(const struct perf_thread_map *threads, pid_t pid); #endif /* __LIBPERF_INTERNAL_THREADMAP_H */ diff --git a/tools/lib/perf/threadmap.c b/tools/lib/perf/threadmap.c index 07968f3ea093..728683199a85 100644 --- a/tools/lib/perf/threadmap.c +++ b/tools/lib/perf/threadmap.c @@ -99,3 +99,12 @@ pid_t perf_thread_map__pid(struct perf_thread_map *map, int idx) { return map->map[idx].pid; } + +int perf_thread_map__idx(const struct perf_thread_map *threads, pid_t pid) +{ + for (int i = 0; i < threads->nr; i++) { + if (pid == threads->map[i].pid || threads->map[i].pid == -1) + return i; + } + return -1; +} -- 2.45.2.1089.g2a221341d9-goog