Re: [CentOS] Check my math please

2008-11-06 Thread Nifty Cluster Mitch
On Wed, Nov 05, 2008 at 03:59:34PM -0600, Sean Carolan wrote: > > > Don't forget that the data speed != line speed. > > A line will only carry about 70% of the line > > speed as data because of packet overheads. > > Thanks for pointing this out. I believe I have enough information to > make my c

Re: [CentOS] Check my math please

2008-11-06 Thread Warren Young
Sean Carolan wrote: For a back-of-the napkin calculation can we not assume that data equal to the entire size of the file will be streamed to the client during playback? You can if you're using some of the fudge factors others have mentioned here. The headers for IP + UDP + RTP take at lea

Re: [CentOS] Check my math please

2008-11-05 Thread Monty Shinn
Sean Carolan wrote: The size of the file doesn't make much difference. What matters is the resolution and framerate of the vide For a back-of-the napkin calculation can we not assume that data equal to the entire size of the file will be streamed to the client during playback? I understand th

Re: [CentOS] Check my math please

2008-11-05 Thread Sean Carolan
> The size of the file doesn't make much difference. What matters is the > resolution and framerate of the vide For a back-of-the napkin calculation can we not assume that data equal to the entire size of the file will be streamed to the client during playback? I understand that frame rate, etc.

Re: [CentOS] Check my math please

2008-11-05 Thread Sean Carolan
> Don't forget that the data speed != line speed. > A line will only carry about 70% of the line > speed as data because of packet overheads. Thanks for pointing this out. I believe I have enough information to make my case. My guesstimate before seeing the actual file sizes was that this would

Re: [CentOS] Check my math please

2008-11-05 Thread Monty Shinn
Sean Carolan wrote: Ok this is kind of a goofy question but I want to make sure I get it right. Suppose we have a 25 mb video, that is 117 seconds long. If we wish for this streaming video to play smoothly with no compression, buffering or skipping, the following bandwidth requirements must be m

Re: [CentOS] Check my math please

2008-11-05 Thread John R Pierce
Sean Carolan wrote: Ok this is kind of a goofy question but I want to make sure I get it right. Suppose we have a 25 mb video, that is 117 seconds long. If we wish for this streaming video to play smoothly with no compression, buffering or skipping, the following bandwidth requirements must be m

RE: [CentOS] Check my math please

2008-11-05 Thread Neil Aggarwal
m for details. > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Sean Carolan > Sent: Wednesday, November 05, 2008 3:47 PM > To: CentOS mailing list > Subject: [CentOS] Check my math please > > Ok this is kind of a goofy quest

[CentOS] Check my math please

2008-11-05 Thread Sean Carolan
Ok this is kind of a goofy question but I want to make sure I get it right. Suppose we have a 25 mb video, that is 117 seconds long. If we wish for this streaming video to play smoothly with no compression, buffering or skipping, the following bandwidth requirements must be met: 25 megabytes = 20