From owner-freebsd-acpi@FreeBSD.ORG Mon May 5 00:25:51 2014 Return-Path: Delivered-To: freebsd-acpi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 961BC8BB; Mon, 5 May 2014 00:25:51 +0000 (UTC) Received: from mail-qg0-x229.google.com (mail-qg0-x229.google.com [IPv6:2607:f8b0:400d:c04::229]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 447EE1272; Mon, 5 May 2014 00:25:51 +0000 (UTC) Received: by mail-qg0-f41.google.com with SMTP id j5so60365qga.0 for ; Sun, 04 May 2014 17:25:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=irv2gEMJA82oBZO0fa6zl5ndmiu60OV+43+t46tO1zM=; b=oHWEkhXuG5Qz5ji/QwNo5pS+DvT5giIwwejWAwewLLPPsq8VBmv1F5bmoqoKLVyYGl HC5r5TKeNaKgGVJChhJIV+GsShhjrP5Evx8r4YzXawGrn/4gN0gdoNllYuJrwuJkUqaD Qkq7aIsf5Db1zK2R6QzionmVENGFohnbGre1XPPRKUk/3GOMg96jDI1jbG6G3CA/9p3c A8Nu/m1bvcKzwIqzbXfBRYpGPfNMBIPdXirOzfBdlgALQ+93V5vEzLSZ6McS4dGyvNdo sg/AImeqOXS9wJawdcw7YIBlLN8g+njcSovrg95gEcheEKC/fE1Sl2E4LuRpuRI5vbs0 X0Gg== MIME-Version: 1.0 X-Received: by 10.229.198.2 with SMTP id em2mr85033qcb.21.1399249550404; Sun, 04 May 2014 17:25:50 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.224.191.201 with HTTP; Sun, 4 May 2014 17:25:50 -0700 (PDT) In-Reply-To: References: Date: Sun, 4 May 2014 17:25:50 -0700 X-Google-Sender-Auth: 0PpzMHdxqj9hlUqdClQ-a1l-rJQ Message-ID: Subject: Re: proposal: set default lid state to S3, performance/economy Cx states to Cmax From: Adrian Chadd To: Warren Block Content-Type: text/plain; charset=UTF-8 Cc: Kevin Oberman , "freebsd-acpi@freebsd.org" , Rui Paulo , "freebsd-arch@freebsd.org" X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 May 2014 00:25:51 -0000 [snip] The easy-to-run test is "sysctl dev.cpu.0.cx_lowest=Cmax" and then use stuff. The problem is that we're not getting anywhere near enough exposure to this kind of stuff because we don't have it on by default and we don't have an active QA group with ridiculous amounts of hardware. So, I'd like to flip it on and then start blacklisting devices that actively don't work in halt states above C1. We're never going to cross this bridge fully if we leave things at C1 out of fear. I'm only suggesting we do this on -HEAD. If it's too scary then we can always flip the default back to C1 for 11.0-RELEASE. -a