From nobody Sat Jan 4 15:32:11 2025 X-Original-To: freebsd-ppc@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4YQPZP2FrDz5kPCF for ; Sat, 04 Jan 2025 15:32:13 +0000 (UTC) (envelope-from superbisquit@gmail.com) Received: from mail-qv1-xf41.google.com (mail-qv1-xf41.google.com [IPv6:2607:f8b0:4864:20::f41]) (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 "WR4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4YQPZN4bf1z4fD6 for ; Sat, 4 Jan 2025 15:32:12 +0000 (UTC) (envelope-from superbisquit@gmail.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20230601 header.b=fFd0JgcM; spf=pass (mx1.freebsd.org: domain of superbisquit@gmail.com designates 2607:f8b0:4864:20::f41 as permitted sender) smtp.mailfrom=superbisquit@gmail.com; dmarc=pass (policy=none) header.from=gmail.com Received: by mail-qv1-xf41.google.com with SMTP id 6a1803df08f44-6d8f75b31bfso115238156d6.3 for ; Sat, 04 Jan 2025 07:32:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1736004731; x=1736609531; darn=freebsd.org; h=to:subject:message-id:date:from:mime-version:from:to:cc:subject :date:message-id:reply-to; bh=GVdoLn3xYvDwJ/oAKS878KPrB87vaNLG9RM2nWZm8Ww=; b=fFd0JgcMQ42/ZMhLcRnbRULkctF9oKWpvBUZRx3i4REXqWr6pCryk9s2Z4JSOS51aB 2oD9eTieHNbA6tYR033qzd5Va1JioZiZUfCPvvO1fywik4ZbCMXD8zekRubkw+IdOpL5 XdFEzN4kVl4sSvOS51CStJPsHATCQyT7Wyx4LIHQu7IKn4nJbpGp8rdchiZ+ltAne+Sz cZpOSQ8g6KoY9R3JqVhUv1kCNUp7a4qzpvxAOz4dlWwx2wr8v5b7p2QgpRRR1eV+emJm OEPV05shQZfWQCCkm3IUnp5joKYsqzg4J+lemm2WrWK/jsNxNgVXMS1JB4fV9kqSLpFG oJRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1736004731; x=1736609531; h=to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=GVdoLn3xYvDwJ/oAKS878KPrB87vaNLG9RM2nWZm8Ww=; b=hF+/VvHwsHvr25o//tvqYZWZ9WNCAJDXZjlfvt74wnLiV2uBoguHgNuV9MCaxYfqop 6zIh73GKk1sqWx/ZIR0Nzpe/MTaYlAGQ1nykjsk5lfGDaIMAFPVIgJO1zAYvqZy7KMWA o1o7M8onZxe4TjTUsCij6ffHFleFhUh7xO04xD7dWArwlzbjw2nbKVf0Z7tPJE9C/8Yd bJsir93wo4hqxPAxOFW4J2Qb9mg0KF+DABTIPvTU2YnB5WiohQp6xqV3LzM94lVCmR9D d/jqjoMSoNgi6M5zCCSfZVb6oGZ4vFoYCMbvYUbaDunkVEDCglQbEqjtmmto/QQV+zY/ UxpQ== X-Gm-Message-State: AOJu0YwyYdfZbCE0xiIndiM4RZXRojFJJzxwfjnuvh/+iWMqiuVw4CQR YlbFPhy4zo3hov3gCwJit0Kq0kTbI6/wMV+wgrlWlwpzTiujVszCVTGHcSs7+3ezxW11+fVumLI ldSjsbbVRlvSacD4QSurjFZR6dCcQox2yO6Ql8A== X-Gm-Gg: ASbGncuilVRWFRW0q6QYN2lcQWQqAtYAK8ulaB4oV1alcarcmNALsYUCft+l6Bo/zlY VTtWDxleDogANXfXhmi2OBR45fMftdxnYwIcjZ6FlFYTZ88AwxyoTuKm/Js4OnCkAsKOCfYd6 X-Google-Smtp-Source: AGHT+IG3VxIf3ganuvlOvuFbpwibFZi946YbtYS1NTCtt/AuwtuKhJEMV0cqMo9ALMc8M0ZMiroPkUQ8/3jiXNjeAxY= X-Received: by 2002:a05:6214:2628:b0:6d8:e679:547c with SMTP id 6a1803df08f44-6dd233527bcmr831615216d6.29.1736004731738; Sat, 04 Jan 2025 07:32:11 -0800 (PST) List-Id: Porting FreeBSD to the PowerPC List-Archive: https://lists.freebsd.org/archives/freebsd-ppc List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: freebsd-ppc@freebsd.org Sender: owner-freebsd-ppc@FreeBSD.org MIME-Version: 1.0 Received: by 2002:a05:6214:27ce:b0:6d8:8008:f426 with HTTP; Sat, 4 Jan 2025 07:32:11 -0800 (PST) From: Joe Nosay Date: Sat, 4 Jan 2025 10:32:11 -0500 Message-ID: Subject: Increasing kernel hertz rate above 2499 and not having the system run backwards To: FreeBSD PowerPC ML Content-Type: multipart/alternative; boundary="0000000000005d2129062ae319cb" X-Rspamd-Queue-Id: 4YQPZN4bf1z4fD6 X-Spamd-Bar: --- X-Spamd-Result: default: False [-4.00 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20230601]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36:c]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; RCVD_TLS_LAST(0.00)[]; TO_DN_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; MIME_TRACE(0.00)[0:+,1:+,2:~]; ARC_NA(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; FREEMAIL_FROM(0.00)[gmail.com]; TO_MATCH_ENVRCPT_ALL(0.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; RCVD_COUNT_TWO(0.00)[2]; FROM_EQ_ENVFROM(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; PREVIOUSLY_DELIVERED(0.00)[freebsd-ppc@freebsd.org]; MLMMJ_DEST(0.00)[freebsd-ppc@freebsd.org]; MID_RHS_MATCH_FROMTLD(0.00)[]; MISSING_XM_UA(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::f41:from] --0000000000005d2129062ae319cb Content-Type: text/plain; charset="UTF-8" I will need a reference to properly grep. The assumption is it exists in source kernel. Lower end machines of RISC architecture need the increased kernel hertz due to latency lag issues. Pre-preparing mentally and on other machines. At 2500 hertz the system goes away. There are other system control settings yet these do not deal with lag. Also, it is a working hypothesis that a dedicated machine for simple and certain tasks would work better with an increased kernel rate. Tickless and real time environments may be set up to do a comparative analysis. Query: when was the last time anyone set up a machine with a kernel rate of 2500 or more and the machine remained stable with a patch? --0000000000005d2129062ae319cb Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable I will need a reference to properly grep. The assumption is it exists in so= urce kernel. Lower end machines of RISC architecture need the increased ker= nel hertz due to latency lag issues. Pre-preparing mentally and on other ma= chines.
At 2500 hertz the system goes away. There are other system cont= rol settings yet these do not deal with lag.
Also, it is a workin= g hypothesis that a dedicated machine for simple and certain tasks would wo= rk better with an increased kernel rate. Tickless and real time environment= s may be set up to do a comparative analysis.
Query: when was the= last time anyone set up a machine with a kernel rate of 2500 or more and t= he machine remained stable with a patch?
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