Date: Mon, 15 Feb 2016 08:09:36 -0200 From: Renato Botelho <garga@FreeBSD.org> To: Mike Tancsa <mike@sentex.net> Cc: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Subject: Re: passwd and pw speed regression? Message-ID: <397202D9-9A58-40D9-9759-EBE54184835A@FreeBSD.org> In-Reply-To: <56BCA298.9060000@sentex.net> References: <56BCA298.9060000@sentex.net>
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> On Feb 11, 2016, at 13:02, Mike Tancsa <mike@sentex.net> wrote: > > I noticed that on a new RELENG_10 box we are building, password updates > are taking a very long time to build. On the old RELENG_8 box, doing > something simple like adding a user > > # time pw useradd test12345 > 0.062u 0.063s 0:00.14 85.7% 54+988k 196+134io 0pf+0w > > # time pw userdel test12345 > 0.164u 0.044s 0:00.20 100.0% 28+1181k 0+18io 0pf+0w > > > On the new RELENG_10 box, > > # time pw useradd test12345 > 0.060u 0.120s 0:58.89 0.3% 58+146k 12+6485io 0pf+0w > > # time pw userdel test12345 > 0.125u 0.133s 0:58.80 0.4% 46+214k 13+9326io 0pf+0w > > > # wc /etc/passwd > 6113 14792 376128 /etc/passwd > > > Yes, almost 60 seconds to add a user to the password file? > > Does anyone know what is going on to account for the large difference > and how to work around it ? I am guessing > > https://svnweb.freebsd.org/base?view=revision&revision=285205 > > is the issue. Apart from keeping local source code changes, is there not > a better way to not have reasonable speeds ? A possible solution is being discussed at https://reviews.freebsd.org/D5186 If you can try out that patch and provide a feedback it would be great -- Renato Botelho
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