From owner-freebsd-stable@freebsd.org Sun Aug 26 11:45:54 2018 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 39D471073044 for ; Sun, 26 Aug 2018 11:45:54 +0000 (UTC) (envelope-from endo.mulo@gmail.com) Received: from mail-oi0-x22b.google.com (mail-oi0-x22b.google.com [IPv6:2607:f8b0:4003:c06::22b]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id AE0487CDCC for ; Sun, 26 Aug 2018 11:45:53 +0000 (UTC) (envelope-from endo.mulo@gmail.com) Received: by mail-oi0-x22b.google.com with SMTP id t68-v6so11446325oie.12 for ; Sun, 26 Aug 2018 04:45:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=8kOBL7Q5IDjFxXeUqlu1PcAHLd+WubQau0PpssY6j7o=; b=YNkIFWVghQD24kg0mwgN2FIdd+aynkQK/O0C2tpyaK8pHrHJUA6H9qnUqIms4hnSkp Ua1soOdGvwng0WH3tJ/VZEdt4BTPwKGAtWKjOszc4DZM7uSjvOW1aEIn0t1P/kFUO3cr G73RVhcvqMjULvLG/UTWoB/idCcQ8l0Vd/akjkE17YFUTUEXbArl5cmu4sJFXtc5oGgc JoDjb5lHjFCl6IX+Ec7JR0BTh2xv6OkMCrM0/7JWHbiVIR7bTNRVbaxQ5JR8bfFQ7Yrl 2/tnf5E8BzEmZZXx2aeXJyvQkcD8PyxPPZ8V2KPjooVdZhEu1d8j3dyfXHqECxPu+4Jo qxow== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=8kOBL7Q5IDjFxXeUqlu1PcAHLd+WubQau0PpssY6j7o=; b=AVVjO6rf7h8mHGDgcqAmrMkLhmhIkFKplxwM/Nbzh4w6+VJ+iL5sY93XXl/4BK4JOO 5x+kWskrK074s1fq3lOSi+ebCojbOdvkUxaVWshdROeKqjTMgBOZJvPGgsgmVt5aiCpM dB7AuEFUQgy4PZ/zbZPporWZvVGIsXHsFyHIxUF37gnV1AN/2vEIp3A2xP8NH54YCX7w 30sVmt7LifjVVI9PxRfqpUSbl0/LagO+d/l4VTsQS1wgwBAvuPcAld1MpRt1pp0Pf2Sl yghJrSZWJdS7+E4Kdlt9YmXYY3vGc+jiTVPkumxKpN7cyo9Mnr5jXqKWMQjzYApkdBET fR6w== X-Gm-Message-State: APzg51DWa2qhRFIMT6pyL+bSxRpwihDnlUDlfpbiU6uq3aItW22XgBIl y82O11+ADAYY3cPKusSPr/yDPKutl43HuNnUgCeKN2IT X-Google-Smtp-Source: ANB0VdaSyFCW9HxNrf8WxxJwhaCEHgM0Vc2h0MeseguccxrlX3a9UhLjnSZWUdiMEpvIg/TFqEzEx0LnKOUqybPFDHY= X-Received: by 2002:aca:6541:: with SMTP id j1-v6mr5986842oiw.157.1535283952567; Sun, 26 Aug 2018 04:45:52 -0700 (PDT) MIME-Version: 1.0 From: "Dmitriy M." Date: Sun, 26 Aug 2018 14:45:42 +0300 Message-ID: Subject: Issue probably with `top` and Uncompressed ARC display To: freebsd-stable@freebsd.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.27 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 26 Aug 2018 11:45:54 -0000 Hi all, Got issue with displaying Uncompressed ARC in `top` (K Uncompressed and negative Ratio) : ARC: 360G Total, 55G MFU, 271G MRU, 245M Anon, 7976M Header, 27G Other 281G Compressed, K Uncompressed, -5.70:1 Ratio Sysctl counters: [box:~]$ sysctl -a | grep compress vfs.zfs.sync_pass_dont_compress: 5 vfs.zfs.compressed_arc_enabled: 1 kstat.zfs.misc.arcstats.uncompressed_size: 2679818006016 kstat.zfs.misc.arcstats.compressed_size: 301540177408 Running pretty old 11.2-BETA3 FreeBSD 11.2-BETA3 #0 r334277 512GiB RAM total vfs.zfs.arc_max="360G" vfs.zfs.arc_min="360G" Is it (already known) bug in `top` or something wrong with system/ARC to worry about? I do not really believe that our data may be 8x compressed (on filesystem via `zfs get compressratio` got 2.10x), but nothing suspicious with system behaviour (CPU/IO/ZFS) was not noticed. Thanks!