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Re: [cobalt-users] Streaming Media

chris wrote:

> Wow! your pentium can provide 63Mbps sustained media! what a fast disk
> you have! and what a big pipe! gorgeous! :-)
>
> chris

Hi Chris,

we're talking about the absolute peak maximum of the machine before the lights go
out - these numbers can only be reached, when doing a live broadcast, where all
streams are generated out of one incoming real media signal (from a live encoder),
so no big harddisk action is required. Serving the same content to many users is not
so demanding. The server uses Raid-0+1 U2W-SCSII Arrays. The unit is connected via 2
x100 Mbit to a 622 Mbit Backbone, so the pipe-thing should be possible.

Under normal conditions you won't get 1500 streams for a long time as users connect
and disconnect again. For a normal event-broadcast you can easily multiply your
stream numbers with 3-5 and get the total of users over the whole time (depending on
the content).

These servers are doing nothing but live-streaming.

I just quotet this numbers to give a comparison to a K6-II with 300 Mhz/IDE-Drives,
as I thought Richard would want to know what numbers of his RaQ he could expect.

In a live broadcast on the RaQ3i the CPU should be bottleneck, maybe when accessing
a huge number of on-demand-streams the Harddisk is the bottleneck.

byebye,

Niko


>
>
> Nikolas Samios wrote:
> > Well, let's put it this way - we are running one of the biggest
> > Streamingmedia-Server-Pools in Germany. On a Dual P-III 500 Mhz with 512 Mb of
> > Ram we can get about 1200 to 1500 Realmedia Streams with 42kpbs (ISDN).
>
> _______________________________________________
> cobalt-users mailing list
> cobalt-users@xxxxxxxxxxxxxxx
> http://list.cobalt.com/mailman/listinfo/cobalt-users

--
_____________________________
Nikolas Samios
CTO/Geschäftsführer

[!] m e d i a p h i l

digital media
Dompfaffweg 10
D-81827 Munich
Germany

Tel: +49.89.431.908.0
Fax: +49.89.431.908.80
eMail: ns@xxxxxxxxxxxx
http://www.mediaphil.de
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