From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Tremer <michael.tremer@ipfire.org>
To: development@lists.ipfire.org
Subject:
 Re: Problems with "Enable some performance tuning" => extremly slow downloads
Date: Thu, 21 Feb 2019 09:33:37 +0000
Message-ID: <E2D5D010-AC5C-41B0-8F5E-37D58FF56A3D@ipfire.org>
In-Reply-To: <086c745c-61c4-784c-739a-588ded7ca64c@ipfire.org>
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On 21 Feb 2019, at 00:36, Matthias Fischer <matthias.fischer(a)ipfire.org> wr=
ote:
>=20
> Hi,
>=20
> On 20.02.2019 16:40, Michael Tremer wrote:
>> Interesting=E2=80=A6 These settings shouldn=E2=80=99t have any impact on a=
ny connections going through the firewall.
>=20
> Yep. And at the moment, I'm not so sure they're really the cause because
> it happened again.
>=20
> At first, I thought it had something to do with my ISP. I made a call,
> but they couldn't find anything wrong with the connection. The problem
> would be on my side. Hm.
>=20
>> Can you narrow it down to one specific setting of these by disabling one b=
y one?
>=20
> Right now: definitely NO. Its "under investigation".
>=20
> Best,
> Matthias
>=20
> P.S.: Oh my - it was too late for something like this - just saw it: the
> machine needs a reboot to really get rid of the tuned parameters, right!?

No you can set these without a reboot...

>=20
>> -Michael
>>=20
>>> On 20 Feb 2019, at 10:18, Matthias Fischer <matthias.fischer(a)ipfire.org=
> wrote:
>>>=20
>>> Hi,
>>>=20
>>> being curious, I tested commit
>>> https://git.ipfire.org/?p=3Dipfire-2.x.git;a=3Dcommit;h=3Dd03916e55851a24=
3594ebf6f0c20c8f6d9092277
>>> on my Core 127 / 32bit IPFire.
>>>=20
>>> At first I didn't notice any differences, system was running as usual.
>>> No important performance impact or change.
>>>=20
>>> But yesterday, while starting some bigger downloads and closely
>>> watching, I noticed that everytime someone started to download a
>>> somewhat bigger file, e.g. 250-800 MB, downloading rates went down to a
>>> crawl. Some downloads even aborted and nearly all where amazingly slow
>>> (~150KB/s, normal: ~6.5 MB/s).
>>>=20
>>> Restarting our Fritzbox and IPFire itself didn't help, all downloads
>>> stayed that way.
>>>=20
>>> After reverting the above commit in '/etc/sysctl.conf' and running
>>> 'sysctl -p', system is running at full speed again: VDSL, 50Mbit down /
>>> 10Mbit up.
>>>=20
>>> Configuration:
>>> Duo Box with Core 127/32bit. Running 'privoxy 3.0.28', 'squid 4.6'
>>> (non-transparent, 512 MB RAM only), 'squidguard 1.5 beta',
>>> 'squidclamav', 'snort / guardian', 'unbound 1.9.0' with DoT/TFO.
>>>=20
>>> Could someone please test and confirm (or not ;-) ).
>>>=20
>>> Best,
>>> Matthias
>>=20
>>=20
>=20


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