From nobody Mon Jan 10 13:59:32 2022 X-Original-To: freebsd-hackers@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 10E3E193B35F for ; Mon, 10 Jan 2022 13:59:42 +0000 (UTC) (envelope-from ralph41096@protonmail.com) Received: from mail-4318.protonmail.ch (mail-4318.protonmail.ch [185.70.43.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "protonmail.com", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4JXb6j6LBXz3DX0 for ; Mon, 10 Jan 2022 13:59:41 +0000 (UTC) (envelope-from ralph41096@protonmail.com) Date: Mon, 10 Jan 2022 13:59:32 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail2; t=1641823173; bh=asCvXgQ1R48m4SeRfEYH9usoi0TnWSe2WMB85NMksY4=; h=Date:To:From:Cc:Reply-To:Subject:Message-ID:In-Reply-To: References:From:To:Cc; b=KnlOWoI0RLUPwS2kM6hUqu5hvlZto3GgqoFit2aQ0gVBfKBpc1jffyTF1dnG5mYlV Fl6g/IZLmsJXP5HLM5EhL2jIYnW2Ligy54AlvuPJ6fv1IL+CponiSChACUZPTL/bfW 8fIFfqcs/sQAfT0W0VCw2237X4pwNYM539UgSnTqhKtzf5oWeTh8mh3kivs1diuzC/ YU0fq774RyF9ybgQuAzcK5DBByZdUu3ml5VYXkNcgYL5wplg9vGLIYrYroRVd8h31q bSiKjyOKGsA7OKX+klkKYhxGlZEzM+257oBJNq267GoCoLHby1io3aqR1Nnal1FN9j G3W3oX871liSw== To: Eugene Grosbein From: Ambert Cc: "freebsd-hackers@freebsd.org" Reply-To: Ambert Subject: Re: Out-of-swap killer and SIGTERM signal Message-ID: In-Reply-To: <76ec92c8-2ace-e526-45b3-58fcd4ecc061@grosbein.net> References: <76ec92c8-2ace-e526-45b3-58fcd4ecc061@grosbein.net> List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-0.7 required=10.0 tests=ALL_TRUSTED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM,FREEMAIL_REPLYTO_END_DIGIT shortcircuit=no autolearn=disabled version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on mailout.protonmail.ch X-Rspamd-Queue-Id: 4JXb6j6LBXz3DX0 X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[] X-ThisMailContainsUnwantedMimeParts: N On 2022-01-10, Eugene Grosbein wrote: > Keep in mind that swap is optional feature and there are systems > running without any swap configured. If there is no swap installed on the computer, then the Out-of-swap killer will be awaken in soft mode when there is less than 2 GiB of free RAM left. If there is only 0.7 GiB of swap installed on the computer, then the Out-of-swap killer will be awaken in soft mode when there is less than 1.3 GiB of free RAM left. The administrator can get the old behaviour (no soft mode) by letting any of the two system-wide parameters to its default value (a grace period of zero seconds, a grace space of zero bytes). Ambert