Re: [Turnserver-devel] Turnserver Performance Testing...

[Sebastien V. <se...@ji...>]

Hi Bill,

Le 19/03/12 20:55, Bill Clark a écrit :
>
> Sebastien,
>
> We managed to load Turnserver with 2K simultaneous connections pushing 
> 4K bytes per second at 85% CPU (single core as Turnserver is single 
> threaded).  Once we crossed 2.5K connections, Turnserver utilized 100% 
> CPU with a load average of 1.6 (in other words 160% CPU).  We pushed 
> number of connections to 3.5K at which point connections stated dropping.
>
> From our initial performance testing, it appears Turnserver is CPU 
> bound and cannot take full advantage of system resources.
>
> Questions:
>
> 1)Are there any plans to make Turnserver multi-threaded?
>

We think about it.

> 2)If so, what is the ETA of a multi-threaded release?
>

We cannot tell you a date yet. We need to analyze and propose a design 
to estimate time of effort to make TurnServer multi-threaded.

Regards,
--
Seb

> Regards,
>
> Bill Clark
>
> *From:*Bill Clark [mailto:bc...@co...]
> *Sent:* Monday, March 19, 2012 10:22 AM
> *To:* tur...@li...
> *Subject:* Re: [Turnserver-devel] Turnserver Performance Testing...
>
> Recompiling with switch '--enable-fdsetsize=65535' allows us to get 
> past the 203 simultaneous connection limit.
>
> Once we formulate our findings, we'll post to group.
>
> Regards,
>
> Bill Clark
>
> *From:*Bill Clark [mailto:bc...@co...]
> *Sent:* Monday, March 19, 2012 9:12 AM
> *To:* tur...@li... 
> <mailto:tur...@li...>
> *Subject:* Re: [Turnserver-devel] Turnserver Performance Testing...
>
> Resending without attachment to avoid message size limits and 
> requiring moderator approval.
>
> *From:*Bill Clark [mailto:bc...@co...]
> *Sent:* Friday, March 16, 2012 12:20 PM
> *To:* tur...@li... 
> <mailto:tur...@li...>
> *Subject:* [Turnserver-devel] Turnserver Performance Testing...
>
> Hi Sebastien,
>
> We're hitting a wall of 203 simultaneous connections on the 
> turnserver.  Could you please provide any server-level or turnserver 
> configuration that would increase this number?
>
> Attached is a netstat capture (netstat --aptn | grep turn) of all 
> sockets open on turnserver.
>
> We're stressing the Turnserver using a modified test_turn_client and 
> netcat as the peer.  The test_turn_client simply allocates, sets 
> permissions and waits for peer to send data.  Once test_turn_client is 
> notified of connection attempt, it binds and echoes data back to peer.
>
> We've increased the number of 'open file' handles to 65535 for all 
> users in /etc/security/limits.conf and ensured value persists across 
> reboots using 'ulimit --a'
>
> Setup:
>
> 1)Configuration
>
> a.Range of allowable sockets increased 40K
>
> i.max_port = 65535
>
> ii.min_port = 25535
>
> b.turn_tcp = true
>
> c.using user file for authentication
>
> 2)User file contains 40K users (ex user1, user2, ..., user40000) with 
> appropriate password, domain and authorized syntax.
>
> Execution:
>
> 1)All clients (aka test_turn_client) processes execute on own server 
> (IP 10.11.205.2)
>
> 2)All peers (aka netcast) execute on own server (IP 10.11.205.4)
>
> 3)Turnserver is running on own server (IP 10.11.205.5)
>
> Any help on this matter would be greatly appreciated.
>
> Regards,
>
> Bill Clark
>
>
>
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