Re: [squid-users] Re: squid with pdns, bandwidth control issue

i have made some test and here is some detail and results
ok i am using two machine

1, Gateway IPcop (linux)
2. Debian lenny (squid)

i am using download manager to download a 50MB file.

IPCOP
-----------
when i do it VIA IPCOP my download burst rate up to 270 KB
not ping delay and other can also brows easily.

Squid on Lenny
------------------------

VIA SQuid (proxy mode) my download reach 365 which is full throughput
and faster then IPCOP but
ping delay reach 4000 which is considered almost near to death.

and no other users can brown and getting time out message on there browser.

i think this shows that issue is with squid box and i don't know
weather i have to tweak the squid or TCP buffer or anything

i am lost please help.

Thanks,

On Fri, Jun 29, 2012 at 5:19 PM, Muhammad Yousuf Khan <sirtcp_at_gmail.com> wrote:
> On Fri, Jun 29, 2012 at 4:54 PM, Amos Jeffries <squid3_at_treenet.co.nz> wrote:
>> On 29/06/2012 11:02 p.m., Muhammad Yousuf Khan wrote:
>>
>>> On Fri, Jun 29, 2012 at 3:34 PM, Amos Jeffries wrote:
>>>>
>>>> On 29/06/2012 10:09 p.m., Muhammad Yousuf Khan wrote:
>>>>>
>>>>> see the ping delay of my proxy server.
>>>>> see first few lines which is before download when i start download a
>>>>> huge file it when to 3000 which is too much and this is the only
>>>>> reason i think why it is happening. now at the bottem of this ping
>>>>> responce you will see when i cancled the download job things back to
>>>>> normal.
>>>>
>>>>
>>>>
>>>> Uhm, the entire network connectivity to a box going slow because one
>>>> application is running...
>>>
>>> sorry i didnt get your point, i mean i am working in a small network
>>> with just 30 nodes and i think it should easily handle the 30 node
>>> network becuase in my last company i was using IPCOP which was an
>>> excellent firewall with squid and it runs well with 120 users with
>>> same specs, btw what do you mean by "my box is slow becuase one
>>> application is running"
>>
>>
>> The buffer bloat description should explain it a bit better than I can.
>> Essentially there is no reason why ping should be affected so badly by Squid
>> (or any other program) moving TCP packets. Regardless of the number of users
>> or network size. But due to buffer and queue problems, it often does.
>>
>
>
>>
>>>
>>> note : i am using KVM virtual machine.
>>
>>
>> Hmm. IIRC there was some problem found a year ago with virtual machines. We
>> narrowed it down to something inside the image. Newely created VM had no
>> issues but cloned ones (even cloned from a fresh new image) would go very
>> slow under load for no identifiable reason. Your issue might be that.
>
> yes i am using a clone of the orignal VM. right now i have deleted the
> orignal one and i have already performe a lot of work in the machine.
> so creating a new one mean i have to work on the new one alot.
>
> any suggestion how to come out of this issue. instead waisting of time.
>
>
>
>>
>> Amos
>>
Received on Fri Jun 29 2012 - 13:12:53 MDT