Date: Thu, 11 Feb 2016 10:02:48 -0500 From: Mike Tancsa <mike@sentex.net> To: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org>, garga@freebsd.org Subject: passwd and pw speed regression? Message-ID: <56BCA298.9060000@sentex.net>
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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 ?
---Mike
--
-------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike@sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada http://www.tancsa.com/
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