From owner-freebsd-hackers@freebsd.org Thu Jan 24 18:13:02 2019 Return-Path: Delivered-To: freebsd-hackers@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 9D15D14B8BCD for ; Thu, 24 Jan 2019 18:13:02 +0000 (UTC) (envelope-from zbeeble@gmail.com) Received: from mail-it1-x12d.google.com (mail-it1-x12d.google.com [IPv6:2607:f8b0:4864:20::12d]) (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 B191E76F57 for ; Thu, 24 Jan 2019 18:13:01 +0000 (UTC) (envelope-from zbeeble@gmail.com) Received: by mail-it1-x12d.google.com with SMTP id a6so5822983itl.4 for ; Thu, 24 Jan 2019 10:13:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=+L1QVQp2wxuCUfaDZOTWspLkjSSgPwtm9F18auNS6KY=; b=QtK1O344JewsHhNXp7olaDCh1+uoV8TnjCXWqFWQPbq0h/Zes1NGwX6ieWhLtG1z4W V1DcLD2e47gLcQmolbvp+IY5C+rooQb9gLOj/ZLhW+B+bMviU5NV+LGgT4Mjr/x2j/dS OMqkFNeGQVn4DyvtsRe4K0vkcEgsN4NrQN1x5hdV6zuc87hO2fhFLTCBEERj1Yg8V4C+ zBeJ+FZmJkrl/xoLQvxlheY9ZWTN+bMWnBvK4IglWGgcpV2WAh+sY+cul1qgtjOnuf9P h1ttOl0EfYRIYGe7/GOX27MTFU3x/lcUrY+AdyPHK13U6hwX+4B56rvHw4tglzLuysYv A14w== 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:cc; bh=+L1QVQp2wxuCUfaDZOTWspLkjSSgPwtm9F18auNS6KY=; b=XJoahNNijxZn0jBqIHUHTyzq0kVDsACwYq8GMNvobyhKbVRQKC49Nb/D49zX9C/7af zjm5Cs1rnxiN6x/aKAHbU/4gu6jE3KiOIe7/i/LNY2dZyv9mEqyEsq/Y7J2B5GT3Jcio DzdiKpEadGfJmy+Dzli/2TimSqZH90iay6rH4OdNNfqrdX56u9D1mCnNW6FTlTHA2Li0 /hKm1EUVE4QHpfOQlJqC6HzukAhQwW05o2f4/f/l0S5ROoTEKE5HLQQpA/0wWHh3uclz wI4+aqxKYcr6Cync78y4TJ21oT8txGbmrXqTiM7dJAn/w7nUmFsFoMshV8emkWs7xaQJ WLYg== X-Gm-Message-State: AJcUukdmcViNyqjcDTpcky/Hca+vqs3BhS96rpigfb8N/JsbHZNnZG6j KebPFPHdA7EkCCP34mMs3NtFM22wH0qh4tGPVAgimqM= X-Google-Smtp-Source: ALg8bN4bwiDkk3LbSc5hMUx6t767r+xNgTYv9uXZGL8ZNrAAWsrErK3A19INwLyocslOBTOgV/TX8W7+d8ayyq4Xp1c= X-Received: by 2002:a24:d4c2:: with SMTP id x185mr2240621itg.34.1548353581052; Thu, 24 Jan 2019 10:13:01 -0800 (PST) MIME-Version: 1.0 References: <1ce4898f-942b-d5ec-7563-fdceb56f4e88@rlwinm.de> <20190124185840.0973ea7f@ernst.home> In-Reply-To: <20190124185840.0973ea7f@ernst.home> From: Zaphod Beeblebrox Date: Thu, 24 Jan 2019 13:12:50 -0500 Message-ID: Subject: Re: Scheduled ideas: Two threads with one "stone" To: gljennjohn@gmail.com Cc: FreeBSD Hackers X-Rspamd-Queue-Id: B191E76F57 X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=QtK1O344; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of zbeeble@gmail.com designates 2607:f8b0:4864:20::12d as permitted sender) smtp.mailfrom=zbeeble@gmail.com X-Spamd-Result: default: False [-6.46 / 15.00]; TO_DN_SOME(0.00)[]; FREEMAIL_FROM(0.00)[gmail.com]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36]; DKIM_TRACE(0.00)[gmail.com:+]; RCPT_COUNT_TWO(0.00)[2]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; MX_GOOD(-0.01)[cached: alt3.gmail-smtp-in.l.google.com]; FREEMAIL_TO(0.00)[gmail.com]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_LAST(0.00)[]; MIME_TRACE(0.00)[0:+,1:+]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; DWL_DNSWL_NONE(0.00)[gmail.com.dwl.dnswl.org : 127.0.5.0]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; NEURAL_HAM_SHORT(-0.90)[-0.896,0]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-hackers@freebsd.org]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[d.2.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.b.8.f.7.0.6.2.list.dnswl.org : 127.0.5.0]; IP_SCORE(-2.56)[ip: (-8.30), ipnet: 2607:f8b0::/32(-2.49), asn: 15169(-1.91), country: US(-0.08)]; RCVD_COUNT_TWO(0.00)[2] Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Jan 2019 18:13:02 -0000 On Thu, Jan 24, 2019 at 1:01 PM Gary Jennejohn wrote: > > > Or switch to SCHED_4BSD. I ran your command line and was still > able to watch a HD movie in full screen mode without a single > glitch. My Ryzen has 6 physical cores and 6 SMTs. > This really isn't about "can you do X while building world" it's an argument about how unfairly we allocate CPU these days w.r.t. hyperthreading and related technologies. It's not "does this minimally work" it's about "can we do better" ....