From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794604630; b=xG0yMo4leqQhRkXmbTtr4xCI6sza8XdbR3BS45U7sV7xr9IKKPSqPPd3+N2TzSqV/1oy 0AcPk2VU3B0A5ediQkf0aiS32UeLi50XX/ZBjuiadgjFmF/jrzADN0vZgFgk+22n3jS1s n7/7/pdi3FYKJJpcI3ynMidRNO+Lbpi1A35Pr5dyH/tB17t8URIgguOiQnbxXI/SxsnJq f5nXyJukCBZk/5q8XHCEX4UMO6sZE9oQQk7gQ8I6bgTORrk6TIrzidwHYfdlN7nBxfwgy Da1K31tt9rkkxRDwJmG85fA87NpiQETgyAF50rcpYsrcebYs6eB/Ix3jU5du9egDFxA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794604630; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=Ft8vCQdxfeluYieMBPKYmyUVEOsN0nSxnpf2nT8N4BQ=; b=xjKJw/0Ubiu2WqYml99rukQYn9ORf2Hs/rO4PyteWSUOGvJU2S9qEQE8vSjxMCdDV0lJ TPBZtqvyZr5XzrB9tsW7AOkAlv3+0+GOODexnmHLC2BVu4CGeoyPTySiXF7/KJdKi5xO4 up3yv/TWBpiuB+hIGjagKkklf4acIQsr68gjX6dk3NHZLKFVkOWzSLApy0GQf80IzkZ2P QLrHXj4ekUFfHhr1gjTUH+WkKh3MUAqVl2JxBeaMKwbl0XFcyZDcX2QeaIfy8eHBKv6/6 ro1k1/wR4m/Omy0scwkxjVMpbDft7ocwY/ClcTgxR0mAawM3MorDV99CMDOQesdRKAg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b="eDrZ/qUp"; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B9DC6606A323 for ; Fri, 13 Nov 2026 21:17:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=eDrZ/qUp Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4DE2D1F000C4; Fri, 13 Nov 2026 21:17:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794604630; bh=Ft8vCQdxfeluYieMBPKYmyUVEOsN0nSxnpf2nT8N4BQ=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=eDrZ/qUpoww8KKpGZR4tghogHfnBjEsKfSSqa+a43IeMI1g0ai7j3fI97UDpb8Db9 kJ2yG+arLmITQNajbFyzahdIg6qMrXblhKOu0buJWx7wu0OOoDKIhwtxh4lhIsXx2j 4NL0AhdH3Jkddjz7w9ndIEqssHrYb+fd1zANK+xW5T1+PxQdtnsD6vlDJpyPHEGsox 6AC7oZFyPLohc3zaUufuzqHV1Zvtocp4ht+AtwCM77xHXNIGzf/OHkRqnG1mtdkmR+ v5TZiC+HlZy/e2emXz2dSjx1sThMPI/QGKRYkX8ud9+6RzMnui1zXhUBvLdml8Nvav BRgB9YcbJrxqQ== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH 08/10] perf build: Enable jevents string compression when available Reply-To: sashiko-reviews@lists.linux.dev To: "Ian Rogers" Cc: linux-perf-users@vger.kernel.org In-Reply-To: <20261113210822.3112700-9-irogers@google.com> References: <20261113210822.3112700-1-irogers@google.com> <20261113210822.3112700-9-irogers@google.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Fri, 13 Nov 2026 21:17:09 +0000 X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > Pass --compress=3D to jevents.py during regular builds to > enable block-indexed string compression (packing generated PMU event and > metric strings into independently compressed ~8 KiB blocks decompressed > on demand by (block_id << 16) | sub_offset), constructing the fallback > list from CONFIG_ZSTD, CONFIG_ZLIB, CONFIG_LZMA, and none so jevents.py > only emits decompression C code for libraries actually linked into perf > (e.g. falling back to zlib when built with NO_LIBZSTD=3D1, or uncompressed > strings when all three are disabled). >=20 > Expose JEVENTS_COMPRESS=3D (or a comma-separated > preference list) in Makefile.perf to override or disable compression, and > track NO_JEVENTS, JEVENTS_ARCH, JEVENTS_MODEL, and the active compression > selection in $(OUTPUT)pmu-events/jevents-flags so changing build flags > triggers regeneration without rerunning jevents.py on incremental no-op > builds. Also cover JEVENTS_COMPRESS=3Dnone in tools/perf/tests/make. >=20 > Signed-off-by: Ian Rogers Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261113210822.3112= 700-1-irogers@google.com?part=3D8