From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ricardo Wurmus Subject: Re: Performance regression on NFS with new manifest version Date: Thu, 05 Oct 2017 17:13:53 +0200 Message-ID: <87fuaxocem.fsf@elephly.net> References: <873790o4q1.fsf@elephly.net> <87mv6ssyy0.fsf@gnu.org> <87377fukfl.fsf@gnu.org> <87shex4pc9.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:46588) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1e09WY-0000tv-OQ for guix-devel@gnu.org; Thu, 05 Oct 2017 13:01:28 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1e09WW-0005O5-Ur for guix-devel@gnu.org; Thu, 05 Oct 2017 13:01:26 -0400 Received: from sender-of-o51.zoho.com ([135.84.80.216]:21040) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1e09WW-0005NE-NK for guix-devel@gnu.org; Thu, 05 Oct 2017 13:01:24 -0400 In-reply-to: <87shex4pc9.fsf@gnu.org> List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: "Guix-devel" To: Ludovic =?utf-8?Q?Court=C3=A8s?= Cc: guix-devel Ludovic Courtès writes: >> $ strace -c guixr package --search-paths -p /gnu/profiles/per-language/r >> export PATH="/gnu/profiles/per-language/r/bin" >> export R_LIBS_SITE="/gnu/profiles/per-language/r/site-library/" >> export TERMINFO_DIRS="/gnu/profiles/per-language/r/share/terminfo" >> % time seconds usecs/call calls errors syscall >> ------ ----------- ----------- --------- --------- ---------------- >> 98.31 0.139510 11626 12 6 wait4 >> 0.77 0.001087 36 30 9 open >> 0.43 0.000615 21 29 8 stat > > I think you’re tracing ‘guixr’, which forks and just waits for ‘guix’ > and other commands, no? @Roel: Try “strace -f” to follow spawned commands. -- Ricardo GPG: BCA6 89B6 3655 3801 C3C6 2150 197A 5888 235F ACAC https://elephly.net