Solved

Red5 RTMP Configuration Optimization

Posted on 2010-08-17
12
3,691 Views
Last Modified: 2013-11-08
I am running Red5 RTMP server on a Linux dedicated server which has 16 CPU cores.

The same server is also running PHP and MySQL.

In the Red5 configuration, what is the maximum that I should set the following values to for optimal performance on the basis that the majority (call it 80%) of the websites load will be on the Red5 server?

rtmp.io_threads=16
rtmp.connect_threads=4
rtmp.send_buffer_size=271360
rtmp.receive_buffer_size=65536
0
Comment
Question by:numberkruncher
  • 6
  • 3
12 Comments
 
LVL 61

Expert Comment

by:gheist
ID: 33519347
I would suggest 1x-2x no. of cores for each type of jetty threads
And customizing network buffers in Linux instead of on each SW you have.
Network buffers consume RAM so they should be as small as possible (bandwidth x delay)
say you expect 256kbps stream over wimax
256kbx1s=32kB
or set it blindly to 65535 to avoid incompatibilities with broke firewalls in home routers...
0
 
LVL 61

Expert Comment

by:gheist
ID: 33519353
also if you do not upload from webcams receive buffer can be one system page - 4kB
0
 
LVL 13

Author Comment

by:numberkruncher
ID: 33519431
I am sorry but I do not understand your reply.

What is io_threads and what is connect_threads?  What are their optimal values for a 16 CPU server?
0
 
LVL 61

Expert Comment

by:gheist
ID: 33558407
two threads of each type on each processor.
reasonably minimal net buffers.
0
Backup Your Microsoft Windows Server®

Backup all your Microsoft Windows Server – on-premises, in remote locations, in private and hybrid clouds. Your entire Windows Server will be backed up in one easy step with patented, block-level disk imaging. We achieve RTOs (recovery time objectives) as low as 15 seconds.

 
LVL 13

Author Comment

by:numberkruncher
ID: 33558525
Please can you fill the following in for me to illustrate what you are saying?
rtmp.io_threads=
rtmp.connect_threads=
rtmp.send_buffer_size=
rtmp.receive_buffer_size=

Open in new window

0
 
LVL 61

Accepted Solution

by:
gheist earned 500 total points
ID: 33566159
rtmp.io_threads=32
rtmp.connect_threads=32
rtmp.send_buffer_size=32768
rtmp.receive_buffer_size=4096
0
 
LVL 61

Expert Comment

by:gheist
ID: 33566161
PS send/receive buffers can be tuned globally using sysctl
0
 
LVL 13

Author Closing Comment

by:numberkruncher
ID: 33572145
Thanks, this was what I was after!
0
 
LVL 61

Expert Comment

by:gheist
ID: 33574581
You may need to increase thread counts if you encounter connection problems (check netstat -s time after time)
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Question regarding adding in a new domain controller 5 54
Botnet detection help me please 21 83
Vlan to Vlan communication 9 79
Unknown security group 2 59
If your business is like most, chances are you still need to maintain a fax infrastructure for your staff. It’s hard to believe that a communication technology that was thriving in the mid-80s could still be an essential part of your team’s modern I…
PRTG Network Monitor lets you monitor your bandwidth usage, so you know who is using up your bandwidth, and what they're using it for.
Internet Business Fax to Email Made Easy - With  eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, f…
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now