Just to simplify tests here is the patch
On Tue, Nov 13, 2012 at 3:14 PM, Domenico Chierico
<domenico.chier...@sip2ser.it> wrote:
> Hi
> We have 1 sipxecs 4.4 with 50 users installed on kvm based virtual machine.
> We had the proxy that ran over 290% of cpu with an average cpu load
> close to 95%. Applying the review #22, the stuff start goes better and
> we are now close to 40% of cpu load.
>
> Some of this load come from the known SUBSCRIBE issue, but some others
> come from a strange behaviour of the tcp part of the sip stack that we
> found:
>
> - linphone client increases the load on sipXproxy, with his own
> strange keepalive method ("Jak" msg to the proxy) and switching the
> transport from tcp to udp.
>
> - Some other evidences come from my personal tests as I notify on 3 of
> August on dev-ml.
>
> Now I'm testing a solution that seems to work, but I wish to know your
> opinion. I've change the order of "if" statements into SipClient::run
> and I moved the branch about POLLERR and POLLHUP as first.
>
> On Fri, Aug 3, 2012 at 11:43 AM, Domenico Chierico
> <domenico.chier...@sip2ser.it> wrote:
>> I'm just playing around with go(lang), and this days I was starting
>> with sip stack implementation, just when messages starts float around
>> I'd realize that I've written a DOS for proxy ..
>> I just send INVITE to the proxy than reads for 100 and 180 and so I
>> close the socket, at this point I got this into the logs forever:
>>
>> "2012-08-03T09:31:03.817653Z":43810:SIP:DEBUG:testpbx.labsip2ser.net:SipClientTcp-30:22CEF700:SipXProxy:"SipClient[SipClientTcp-30]::run
>> resPoll= 1 revents: fd[0]= 0 fd[1]= 1d"
>> "2012-08-03T09:31:03.817668Z":43811:KERNEL:DEBUG:testpbx.labsip2ser.net:SipClientTcp-30:22CEF700:SipXProxy:"OsSocket::isReadyToWrite
>> poll returned 1 in socket: 21 0x7f5eec002070"
>> "2012-08-03T09:31:03.817683Z":43812:SIP:DEBUG:testpbx.labsip2ser.net:SipClientTcp-30:22CEF700:SipXProxy:"SipClient[SipClientTcp-30]::run
>> resPoll= 1 revents: fd[0]= 0 fd[1]= 1d"
>> "2012-08-03T09:31:03.817698Z":43813:KERNEL:DEBUG:testpbx.labsip2ser.net:SipClientTcp-30:22CEF700:SipXProxy:"OsSocket::isReadyToWrite
>> poll returned 1 in socket: 21 0x7f5eec002070"
>> "2012-08-03T09:31:03.817714Z":43814:SIP:DEBUG:testpbx.labsip2ser.net:SipClientTcp-30:22CEF700:SipXProxy:"SipClient[SipClientTcp-30]::run
>> resPoll= 1 revents: fd[0]= 0 fd[1]= 1d"
>> "2012-08-03T09:31:03.817728Z":43815:KERNEL:DEBUG:testpbx.labsip2ser.net:SipClientTcp-30:22CEF700:SipXProxy:"OsSocket::isReadyToWrite
>> poll returned 1 in socket: 21 0x7f5eec002070"
>>
>> I hope this helps..
>>
>> bye
>> Domenico Chierico
fix_sipxclient.patch
Description: Binary data
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