From: Jarek Poplawski <jarkao2@gmail.com>
To: Patrick McHardy <kaber@trash.net>
Cc: slavon@bigtelecom.ru, netdev@vger.kernel.org
Subject: Re: Packetlost when "tc qdisc del dev eth0 root"
Date: Sun, 20 Jan 2008 00:21:56 +0100 [thread overview]
Message-ID: <47928614.1090209@gmail.com> (raw)
In-Reply-To: <478D9222.7030603@trash.net>
Patrick McHardy wrote, On 01/16/2008 06:12 AM:
> slavon@bigtelecom.ru wrote:
>> Good night! =)
>>
>> Sorry... i was wrong...
>> I see that problem more serious....
>>
>> Lets see to scheme
>>
>> Class 1
>> ---qdisc
>> ------- 10k classes
>> Class 2
>> ---qdisc
>> ------- 10k classes
>>
>> All traffic go to class 2... class 1 qdisc not have packets and if we
>> delete it - packets not lost... in theory... lets try delete class 1
>> qdisc (all childrens delete too)...
>> PC freeze on 2-5 seconds... its not forward any traffic at this
>> moment... its great tree lock?
>>
>> Its normal or code need to more accurate lock?
>
>
> htb class destruction can be quite expansive if one of the rb trees
> needs to be rebalanced. Doing that for 10000 classes would explain
> the delay.
I've just looked at this and it seems there should be no rbtrees operations
during htb qdisc deletion (or I miss something).
Slavon, I see nearby that you teach oprofile...
Regards,
Jarek P.
next prev parent reply other threads:[~2008-01-19 23:19 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-15 11:10 Packetlost when "tc qdisc del dev eth0 root" Badalian Vyacheslav
2008-01-15 16:05 ` Patrick McHardy
2008-01-15 16:11 ` slavon
2008-01-15 21:15 ` Jarek Poplawski
2008-01-15 21:46 ` slavon
2008-01-15 22:04 ` slavon
2008-01-15 22:49 ` Jarek Poplawski
2008-01-16 5:12 ` Patrick McHardy
2008-01-19 23:21 ` Jarek Poplawski [this message]
2008-01-15 22:32 ` Jarek Poplawski
2008-01-15 23:16 ` Glen Turner
2008-01-16 5:02 ` Patrick McHardy
2008-01-16 8:02 ` Jarek Poplawski
2008-01-16 8:05 ` Patrick McHardy
2008-01-16 8:35 ` Badalian Vyacheslav
2008-01-16 9:42 ` Jarek Poplawski
2008-01-16 8:52 ` Jarek Poplawski
2008-01-16 8:54 ` Badalian Vyacheslav
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=47928614.1090209@gmail.com \
--to=jarkao2@gmail.com \
--cc=kaber@trash.net \
--cc=netdev@vger.kernel.org \
--cc=slavon@bigtelecom.ru \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.