From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 29BD4C433E7 for ; Thu, 15 Oct 2020 18:26:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B483220872 for ; Thu, 15 Oct 2020 18:26:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=toxicpanda-com.20150623.gappssmtp.com header.i=@toxicpanda-com.20150623.gappssmtp.com header.b="aHs0c0s9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733063AbgJOS0H (ORCPT ); Thu, 15 Oct 2020 14:26:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37552 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733056AbgJOS0G (ORCPT ); Thu, 15 Oct 2020 14:26:06 -0400 Received: from mail-qt1-x841.google.com (mail-qt1-x841.google.com [IPv6:2607:f8b0:4864:20::841]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DC57CC061755 for ; Thu, 15 Oct 2020 11:26:05 -0700 (PDT) Received: by mail-qt1-x841.google.com with SMTP id h19so70370qtq.4 for ; Thu, 15 Oct 2020 11:26:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=toxicpanda-com.20150623.gappssmtp.com; s=20150623; h=from:to:subject:date:message-id:mime-version :content-transfer-encoding; bh=nyAds3OOnz6zboTVBw727hLUyPdhU7m05Bbz4O6dQT0=; b=aHs0c0s9ijEC/HS1gl+89zYKKxKN/nxS60VPyNvgCj7iVoltHM0Z2tfHbY47ZR6+Wg EWohBnY5rnXrlROUOYsPMAhUtNy4ZuG+RLpQf6hiRRfnRplFcP9ny+5p1OxbKbS1YNg4 Dtgxeb9hoVzBYk/UoZjm9Z9O5GT6kR7rF14DeaHE35ZIGin/I00gRnS/YIZpgBdn6lnV dxSShelAh2f48ApAG7DZiROjLrpEQrfx/qmxgFktqigk7dntFPv+EotKhYzyEVWZnMdw Mb9eug66eMiUf8Tny0sEuIHxiUGQK8C+MdLptz6NR/Os1k+P5/0Tks+11apOuLmzGNs8 FoGA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:mime-version :content-transfer-encoding; bh=nyAds3OOnz6zboTVBw727hLUyPdhU7m05Bbz4O6dQT0=; b=qNIfG7J7B3tu47lEcume6VdQST3HSuxqx9iTJ0FNe4iIRnNflshDuo7Own0bpAVbTz 0psOVWabOK+mNkBxgWs9rGHMwB9DdEGurt39DHR/hZ1vpmMQ/da5j3EX6MD6xIJWO8Re 3lSvEy3p+bmbAaDQZgsGjEErovGuETQE08QSEz7w8o1JfdzLLBNwRqzu1m6G/3EIF2py G7mn+8pDD2hvmp6okdflxoSVY3NJFtokiAGyrzKgf9c9rhyDMfreruDg4EQeWYq+OfPr vNIL5KVZoBTJYB7XFhFyrfmR8BvR0YXr1KhV+ojt7qRqs38eaXRgXmmhbfYXxPqlLQ3M PvVA== X-Gm-Message-State: AOAM531hcsgWu9l698uRds1PbMI1tKOv21mgtfXjQZKzV9Rl3n44jkA6 H97jdUOO0O7lN1rHVtkvX/B64jIZF8EFVmb4 X-Google-Smtp-Source: ABdhPJz5cjw/UfBo5VdfhvpZE+nUNd84tSvFEuWIR/rh/YjS0jmOCTxKNFg6uU5ZCZ97lRhtUNor1Q== X-Received: by 2002:aed:2706:: with SMTP id n6mr5408517qtd.280.1602786364737; Thu, 15 Oct 2020 11:26:04 -0700 (PDT) Received: from localhost (cpe-174-109-172-136.nc.res.rr.com. [174.109.172.136]) by smtp.gmail.com with ESMTPSA id g1sm26107qtp.74.2020.10.15.11.26.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 15 Oct 2020 11:26:04 -0700 (PDT) From: Josef Bacik To: linux-btrfs@vger.kernel.org, kernel-team@fb.com Subject: [PATCH 0/6] A variety of lock contention fixes Date: Thu, 15 Oct 2020 14:25:56 -0400 Message-Id: X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Hello, I've been running some stress tests recently in order to try and reproduce some problems I've tripped over in relocation. Most of this series is a reposting of patches I wrote when debugging related issues for Zygo that got lost. I've updated one of them to make the lock contention even better, making it so I have to ramp up my stress test loops because it now finishes way too fast. Thanks, Josef Josef Bacik (6): btrfs: do not block on deleted bgs mutex in the cleaner btrfs: only let one thread pre-flush delayed refs in commit btrfs: delayed refs pre-flushing should only run the heads we have btrfs: only run delayed refs once before committing btrfs: run delayed refs less often in commit_cowonly_roots btrfs: stop running all delayed refs during snapshot fs/btrfs/block-group.c | 11 +++++-- fs/btrfs/delayed-ref.h | 12 +++---- fs/btrfs/extent-tree.c | 2 +- fs/btrfs/transaction.c | 73 ++++++++++++++++-------------------------- 4 files changed, 43 insertions(+), 55 deletions(-) -- 2.24.1