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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: guix-devel@gnu.org Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Migadu-Flow: FLOW_IN X-Migadu-Country: US ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1639595400; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:in-reply-to:in-reply-to: references:references:list-id:list-help:list-unsubscribe: list-subscribe:list-post:dkim-signature; bh=ZgRbYrsUXCm1sw91QDqBQeXl4++CAz4KlFqyBHOdtfQ=; b=eB7PIpUotWmhYyLNIS1tUOHiu+4ZwJC8sI0H/YW7zPcME/ffwlVYb4oCMzIbxGFbQLkwwL 6dKzMBnY0oaVoeeVrzcQAY3ZzxZkz85myZVzjsdqvScII0j6Q2z1szRJBSSa9GbDt51Cda O8R+bohq/8M6Qx7+/TXRuF5AeIFP4j95mwNBrYnSFcqaOwT2EkZxuVMspcuuw41ldsRUc2 xA8NLiSvq48lC5Hbyb/SDmGnLT7CujlSX0Y9gVmtX2DgKUnrbpVrRRghmsj9gPeQR6aI+m mWXlwtuFkRNrQ0H0OXK92tcV7BHGzx+SxtA/M/yOuUdAbuPDugoukyLp7wocKw== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1639595400; a=rsa-sha256; cv=none; b=NbwFdSP361QhQQLScU8/SRtnDECcNWyrBXq069ez/+7zrxpuLrnkNiFOpZtoA9ZLj9Fec8 vL/qlvt90E40foWZMCEjqtje7SnVgXb1TQDBv5+Wgx8LNaUto2fbqntR3O5EQqy8kUcCtj JjAV3ZYMD/VkjZ1rNRMr9kpaAqXG7VWoLREVRK6DK7hEjDbpWlh3xdwxlsTLrmNpcGuC7L ficBS9Fq9Juj2lwlQMXMb7Ok70h7wkuJgQuTLWb8OV6ZjSOzNC7XrcliVgpF3igP940AJU JW/1O4l2Pt59IUQJq/qYBzNTjSMttHoS+LtBCv6jOodMpIh+hky18MZTT6sztA== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=pass header.d=famulari.name header.s=mesmtp header.b=mkIlX0en; dkim=pass header.d=messagingengine.com header.s=fm1 header.b=Dr57EunK; dmarc=none; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: -12.98 Authentication-Results: aspmx1.migadu.com; dkim=pass header.d=famulari.name header.s=mesmtp header.b=mkIlX0en; dkim=pass header.d=messagingengine.com header.s=fm1 header.b=Dr57EunK; dmarc=none; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: 7E62BDFE9 X-Spam-Score: -12.98 X-Migadu-Scanner: scn0.migadu.com X-TUID: 69+OV2DLQoja On Wed, Dec 15, 2021 at 05:15:08PM +0100, Mathieu Othacehe wrote: > * The IO operations on Berlin are mysteriously slow. Removing files from > /gnu/store/trash is taking ages. This is reported here: > https://issues.guix.gnu.org/51787. I believe this is because we are running `guix gc --verify=contents` to check the status of the build artifacts after the shutdown. I'm not sure whether or not we can get a progress report on this. > * The PostgreSQL database behind ci.guix.gnu.org also became super slow > and I decided to drop it. I don't know if there's a connection with > the above point. I'm missing the appropriate tools/knowledge to > monitor the IO & file-system performances. You might try `atop`, which at least highlights that the storage is almost fully loaded with I/O operations. Beyond that is `sar` from the sysstat package, although making use of it requires some learning.