From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 11999 invoked from network); 21 Oct 2022 17:42:31 -0000 Received: from 9front.inri.net (168.235.81.73) by inbox.vuxu.org with ESMTPUTF8; 21 Oct 2022 17:42:31 -0000 Received: from orthanc.ca ([208.79.93.154]) by 9front; Fri Oct 21 13:40:07 -0400 2022 Received: from orthanc.ca (localhost [127.0.0.1]) by orthanc.ca (OpenSMTPD) with ESMTP id da71b854; Fri, 21 Oct 2022 10:40:06 -0700 (PDT) From: "Lyndon Nerenberg (VE7TFX/VE6BBM)" To: 9front@9front.org, "David Arroyo" In-reply-to: <3707ae90-8a68-4eec-bb3e-b67ee5841182@app.fastmail.com> References: <26B1535D9EE1F3549FAB661259CC3845@ftrv.se> <3707ae90-8a68-4eec-bb3e-b67ee5841182@app.fastmail.com> Comments: In-reply-to "David Arroyo" message dated "Fri, 21 Oct 2022 11:38:34 -0400." MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <72766.1666374006.1@orthanc.ca> Date: Fri, 21 Oct 2022 10:40:06 -0700 Message-ID: <756d04ac6e8424de@orthanc.ca> List-ID: <9front.9front.org> List-Help: X-Glyph: ➈ X-Bullshit: basic anonymous STM hosting-aware interface Subject: Re: [9front] Speeding up snoopy(8) Reply-To: 9front@9front.org Precedence: bulk This is coming completely out of left field, but ... On machines that support atomic 64-bit read/write, would it be possible to map a single hardwired non-cacheable page into every process's address space and store the tick counter there? --lyndon