From nobody Thu Aug 01 11:04:45 2024 X-Original-To: dev-commits-doc-all@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 4WZR1n4GsDz5SZdT for ; Thu, 01 Aug 2024 11:04:45 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (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 "mxrelay.nyi.freebsd.org", Issuer "R11" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4WZR1n2rmvz4qRX; Thu, 1 Aug 2024 11:04:45 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1722510285; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=ioIRzubiwHv3Ni5Id8c+R7WVHBClCBkbM5032HuEhak=; b=yBd+173cEcd2MvbjjDUsRExWV52KtjWyaWWdicqV9hu08DC924rVFHwo/jRluSrrNbhWs/ vz+29WC3FLkhCLcy+hFS97Zk/EqOJQy66fdrqR7UAPRMrHBchOCz5tzKKLjRwEGQZWFLx6 Ud/ktBbRnvfCPedkMYN2G9GoYy46DnLkeGgCfQGMfQtA9ZoJglGq8K2uxbeVg956Ww1zQ7 SdeEPq+Y/qGdDLsDBxFt2oytcCtJ+AAKvQ0/0JKNphYQThddiMBQQ/VCP37NzhS//45wne gBkG45EzBfixFMCVFv6VGYInQHruwMHxaU5Ngg4ckxS5amkX8YL6YvUlDXhbwA== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1722510285; a=rsa-sha256; cv=none; b=xOz6YQ1nH/2F21urkfZy95UEoCiqqGM5h9qRpdyELZTA6LOv25crOtOWbMzF0+h+PX7u/I siBs4jWCvcpRMs0vcRVIzwVlsHy34OEVxF/aj0nA2IQR10a8FotDbi6Lh3PMEmT88Y2hMo EKYvLCwWhdB0QOs9CeVcZFLwguCpHLCa8Q02QPCnt130aiTNjF7hg04IiFXnapCmNB24QJ 4imIWSrXx3iYj0r/ihUtXLPX2rD/I5Imbj8LxCm5hNHSoNKRDGy7Dhk2N5f435n5UY575W QFdcfKi3Mt/gT16bI3qqLkAKTkJtw/H8C/KV6Z3fF8vhsS8CnEJDx9bb5ykQHQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1722510285; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=ioIRzubiwHv3Ni5Id8c+R7WVHBClCBkbM5032HuEhak=; b=eWwTXGNFjjvN1v2h1FvJ7PgLGqitpVOSKOFvSezOItEY9jwroF/mRCSkqqdV5AIzU54e1D HOlZQxLWAy4/I9V/4/+Ztj6j+h2WqJEsLf11NslmH7t4efFDU1sOc/tXcxrh7zcXUskyjY 2BDy/RTXML4pqAayynN97OSk5jZfNpWROWFTwpN9S8re0zX8PwMlZo1GiaP/UHdC24WB4V CK/XGnFrrENgJDbKVI3jR0LjDnCue4CSjRjziLmCQvWLeETPmR/B+O584pPb64P2Ph5LhV I5agjQpJ+w8PWj4+R5RimX2xaPnPWBJ4zYATrmbbSydz7+PLJ65Sg1IqzRruFw== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (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 did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4WZR1n224jzjBs; Thu, 1 Aug 2024 11:04:45 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.18.1/8.18.1) with ESMTP id 471B4jcr067616; Thu, 1 Aug 2024 11:04:45 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.18.1/8.18.1/Submit) id 471B4jnV067613; Thu, 1 Aug 2024 11:04:45 GMT (envelope-from git) Date: Thu, 1 Aug 2024 11:04:45 GMT Message-Id: <202408011104.471B4jnV067613@gitrepo.freebsd.org> To: doc-committers@FreeBSD.org, dev-commits-doc-all@FreeBSD.org From: Lorenzo Salvadore Subject: git: ecdf406d4b - main - Status/2024Q2/openzfs.adoc: Add report List-Id: Commit messages for all branches of the doc repository List-Archive: https://lists.freebsd.org/archives/dev-commits-doc-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-doc-all@freebsd.org Sender: owner-dev-commits-doc-all@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: salvadore X-Git-Repository: doc X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: ecdf406d4be4eec2f0297d04db61e9a1fc140fae Auto-Submitted: auto-generated The branch main has been updated by salvadore: URL: https://cgit.FreeBSD.org/doc/commit/?id=ecdf406d4be4eec2f0297d04db61e9a1fc140fae commit ecdf406d4be4eec2f0297d04db61e9a1fc140fae Author: Paweł Jakub Dawidek AuthorDate: 2024-07-23 10:16:29 +0000 Commit: Lorenzo Salvadore CommitDate: 2024-08-01 11:04:22 +0000 Status/2024Q2/openzfs.adoc: Add report Reviewed by: status (Pau Amma ) --- .../en/status/report-2024-04-2024-06/openzfs.adoc | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/website/content/en/status/report-2024-04-2024-06/openzfs.adoc b/website/content/en/status/report-2024-04-2024-06/openzfs.adoc new file mode 100644 index 0000000000..979cb31434 --- /dev/null +++ b/website/content/en/status/report-2024-04-2024-06/openzfs.adoc @@ -0,0 +1,26 @@ +=== Hierarchical rate limits for OpenZFS + +Links: + +link:https://github.com/openzfs/zfs/pull/16205[Pull request] URL: link:https://github.com/openzfs/zfs/pull/16205[] + +Contact: Pawel Dawidek + +Rate limits allow to limit bandwidth and number of metadata operations per dataset. + +Hierarchical rate limits allow for granular resource control especially in shared environments, eg. when a single ZFS pool serves data to multiple, independent virtual machines or jails. + +Because the limits are hierarchical, they are enforced like the quota property: the children datasets must obey the limits of the parent dataset. + +The limits can be configured using six new properties: +limit_bw_read, limit_bw_write, limit_bw_total, limit_op_read, limit_op_write, limit_op_total +The limit_bw_* properties limit the read, write, or combined bandwidth, respectively, that a dataset and its descendants can consume. +Those limits are in bytes per second. +The limit_op_* properties limit the read, write, or both metadata operations, respectively, that a dataset and its descendants can generate. +Those limits are in number of operations per second. + +Limits are applied to file systems and ZFS volumes (and their snapshots). + +The initial work is done and the pull request is up for review. + +Sponsor: Klara Systems +Sponsor: FreeBSD Foundation