From owner-freebsd-current@freebsd.org Sun Nov 29 16:04:59 2020 Return-Path: Delivered-To: freebsd-current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 837F44A670A for ; Sun, 29 Nov 2020 16:04:59 +0000 (UTC) (envelope-from rysto32@gmail.com) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 4CkY971Fz8z4pP3 for ; Sun, 29 Nov 2020 16:04:59 +0000 (UTC) (envelope-from rysto32@gmail.com) Received: by mailman.nyi.freebsd.org (Postfix) id 2961C4A6598; Sun, 29 Nov 2020 16:04:59 +0000 (UTC) Delivered-To: current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 2925F4A66F4 for ; Sun, 29 Nov 2020 16:04:59 +0000 (UTC) (envelope-from rysto32@gmail.com) Received: from mail-pg1-x536.google.com (mail-pg1-x536.google.com [IPv6:2607:f8b0:4864:20::536]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4CkY970bDLz4pLf for ; Sun, 29 Nov 2020 16:04:58 +0000 (UTC) (envelope-from rysto32@gmail.com) Received: by mail-pg1-x536.google.com with SMTP id f17so8407441pge.6 for ; Sun, 29 Nov 2020 08:04:58 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=ttOkdZlDv3PPwJEeHnMxTzyNc8t+pBPkidwyylfnn1M=; b=DP4aMLIp9lY8kJlbTIYYprKtY4b6b8y3cAKQzZEo6k3OEHzc35S7nR1kbvZOn0wCEI 2Y8cOZd/Y1oqm3TFXVc+wIwH4ke643+IzU2XYOtZIe4ifJi7JXqczB+Zp0o3wwcDkJo9 PVPAbEVxxpT6EcT/R/mGzklRvpfgSL8zJDF5inB3zrAWxKVlkOhM/+9abuTt6zFWda58 JAkaITaTxgO6fHQ/Odjfo2lvi5Iu/5Ut4eFLZOEyECpIl/d5hPM0GVRD4cJS7mBMK8qD K36JdyFjMdBjUUNgyjZdBufy14HwYs3/f85LF5uMO5bNDvMWsFTyBpfEGMpS4mZ79Ol2 okBg== X-Gm-Message-State: AOAM533x5HKp5Mau9rqe8xnBvXW4juBnB5jHK0anee1kvmzljdQri5/d Xi70wj4KSNmGhmVCf9Mj2/n5bUb0tQdTqN4g43A= X-Google-Smtp-Source: ABdhPJzkTl366ggsx2QmCjI9T/FJrxAJKRHMT97Qc4duGnmf0IAsxIsGmH1T5XSklXxtRrAxvcssH3ZXGQLGnrxRj6s= X-Received: by 2002:a17:90a:8b8b:: with SMTP id z11mr17816213pjn.117.1606665897559; Sun, 29 Nov 2020 08:04:57 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Ryan Stone Date: Sun, 29 Nov 2020 11:04:46 -0500 Message-ID: Subject: Re: Laptop exhibits erratic responsiveness To: David Wolfskill , Jonathan Looney , FreeBSD Current Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 4CkY970bDLz4pLf X-Spamd-Bar: ---- X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 29 Nov 2020 16:04:59 -0000 On Sun, Nov 29, 2020 at 9:12 AM David Wolfskill wrote: > OK, and demonstrated some long RTTs about every 11 packets or so, but we > see thing come to a screeching halt with: > > ... > 64 bytes from 172.16.8.13: icmp_seq=534 ttl=63 time=0.664 ms > lockstat: dtrace_status(): Abort due to systemic unresponsiveness > 64 bytes from 172.16.8.13: icmp_seq=535 ttl=63 time=9404.383 ms > > and we get no lockstat output. :-/ I believe that if you run lockstat with the additional "-x destructive" option, it will disable the responsiveness test (the option does sound scary but it will not have any other potentially destructive effect)