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Where is my bandwidth???

PostPosted: Mon Jun 27, 2011 5:19 pm
by lottathought
I am trying to understand exactly why my bandwidth is choking off when I try to stream video.

My setup is this..
At my home, I have 30mb download and 5 MB upload. I have tested and confirmed this.

At my work, I have 40MB download and 20MB upload. I have speed tested this also.

When I try to stream video from my home to my work however, I am only able to get approx 284kb bandwidth.

I have read the post suggesting a trans-coding issue eating the CPU.
I am running a quad core CPU however and have 4 GB ram. (Windows Home Server I built is where Subsonic is installed.)

I do not see how the trans-coding would affect my bandwidth anyways.
And if I am testing good speeds at both locations, I do not know where else to look.

Some other info is this...
I am using only the Subsonic services to play video files.
My video files typically in MKV.
I did uncheck the MKV-FLV per a suggestion that I saw in a thread but this did not help.
I have tested all the way down to 200kb streaming. I still got some buffers ..but not as many. I would prefer to find where my bandwidth went though.
I am using DYNDNS.org to stream as I have a dynamic ip with Time Warner Roadrunner.

Thanks

PostPosted: Tue Jun 28, 2011 3:20 am
by GJ51
While the transcoding doesn't affect your bandwidth it does take a lot of cpu power and may not keep up with the data stream which cause it to buffer the video while the transcoding catches up. Even though you have a quad core cpu, the default version of ffmpeg that is installed with Subsonic only utilizes one core per video stream for the transcoding, effectively making your server a single core for the transcoding. I have made many posts regarding this issue and how to remedy it. Please search for one of those posts to find the answers you need.