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From: Ed W <lists@wildgooses.com>
To: Jan Engelhardt <jengelh@medozas.de>
Cc: "Maciej Żenczykowski" <zenczykowski@gmail.com>,
	netfilter-devel@vger.kernel.org
Subject: Re: Performance issue due to constant "modprobes"
Date: Wed, 13 Apr 2011 13:35:13 +0100	[thread overview]
Message-ID: <4DA59881.1050501@wildgooses.com> (raw)
In-Reply-To: <alpine.LNX.2.01.1104131406130.25539@obet.zrqbmnf.qr>

Hi

> In iptables, the options --enable-static and --enable-shared are 
> semantically different from other projects.

Thanks for confirming - iptables also helpfully spells exactly this out
in the INSTALL doc (+1 for open source documentation!!)


>> Additionally, as helpfully pointed out by Jan, a chunk of my problem is
>> my static iptables apparently trying to probe a kernel module which
>> isn't incorporated into my kernel version.  I can't immediately see a
>> solution to not uselessly probing for that (without patching iptables)?
>> Any ideas?
> 
> I would have said it could be the missing SET module being the cause for 
> your modprobe time accumulation, but since you also use iptables-restore 
> that possibility, too, is eliminated.

Yes, although these modules are being probed for even on a zero
(missing) input to iptables-restore.  However, that seems consistent
with a v1.4.10 iptables --enable-static based binary?  Presumably this
just probes everything?

(To be clear my test in my previous email was NOT using your git commit
to delay mod probing)

I will have to retest with your commit and without my hack to see
exactly what is still being probed for

Thanks

Ed W

  reply	other threads:[~2011-04-13 12:35 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-07 23:16 Performance issue due to constant "modprobes" Ed W
2011-04-08  0:18 ` Jan Engelhardt
2011-04-08 17:11   ` Ed W
2011-04-08  0:47 ` Maciej Żenczykowski
2011-04-08 17:11   ` Ed W
2011-04-08 19:54     ` Jan Engelhardt
2011-04-08 23:22       ` Ed W
2011-04-08 23:42         ` Jan Engelhardt
2011-04-09 20:39           ` Ed W
2011-04-09 22:30             ` Jan Engelhardt
2011-04-12 21:03               ` Ed W
2011-04-12 22:05                 ` Jan Engelhardt
2011-04-13 11:08                   ` Ed W
2011-04-13 12:06                     ` Jan Engelhardt
2011-04-13  9:10               ` Maciej Żenczykowski
2011-04-13 11:35                 ` Ed W
2011-04-13 12:13                   ` Jan Engelhardt
2011-04-13 12:35                     ` Ed W [this message]
2011-04-13 12:45                       ` Jan Engelhardt
2011-04-13 16:45                         ` Ed W
2011-04-13 19:20                           ` Mr Dash Four
2011-04-14  7:07                           ` Maciej Żenczykowski
2011-04-14  7:13                             ` Maciej Żenczykowski
2011-04-14  7:19                               ` Jan Engelhardt
2011-04-18 13:38                                 ` Patrick McHardy
2011-04-18 16:33                               ` Ed W
2011-04-19  1:12                                 ` Maciej Żenczykowski
2011-04-19  9:03                                   ` Maciej Żenczykowski
2011-04-19 16:10                                     ` Ed W
2011-04-20  1:26                                       ` Maciej Żenczykowski
2011-04-20  6:41                                         ` Maciej Żenczykowski
2011-04-20  7:31                                           ` Jozsef Kadlecsik
2011-04-20  8:54                                             ` Ed W

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