Boston Linux & UNIX was originally founded in 1994 as part of The Boston Computer Society. We meet on the third Wednesday of each month at the Massachusetts Institute of Technology, in Building E51.

BLU Discuss list archive


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Discuss] Future-proofing a house for networking -- what to run?



On 9/13/2017 11:44 AM, Robert Krawitz wrote:
> On Wed, 13 Sep 2017 11:38:36 -0400, Richard Pieri wrote:
>> 1080p video streams (MPEG-4) need about 5-8 Mbps burst bandwidth.
>> Gigabit Ethernet has practical throughput about 300Mbps.
> 
> ???  I routinely get over 100 MB/sec (>800 Mbps) transferring files --
> even with scp -- between systems with fast enough disks.

If I'm not mistaken that's with jumbo frames enabled. Consumer NICs
typically do not support jumbo frames. Regardless, if you're getting
~2.5 times my throughput estimate then your MythTV usage is consuming
about 2% of your available bandwidth instead of my 5% estimate, so
instead of wasting 95% of the network bandwidth by not using it you're
wasting 98% of it.

If you were doing video editing then that would be a different story.
This is large(ish) scale bulk data transfers where high sustained
throughput is necessary. But then, you would do this kind of wiring in a
studio environment, not the entire residence.

So, yeah, whole-home wiring just doesn't make sense.

-- 
Rich P.



BLU is a member of BostonUserGroups
BLU is a member of BostonUserGroups
We also thank MIT for the use of their facilities.

Valid HTML 4.01! Valid CSS!



Boston Linux & Unix / webmaster@blu.org