[Bloat] Progress with latency-under-load tool

[Dave Täht]

grenville armitage <garmitage at swin.edu.au> writes:

> On 03/20/2011 21:45, Jonathan Morton wrote:
> 	[..]
>> Here are some numbers I got from a test over a switched 100base-TX LAN:
>>
>>      Upload Capacity: 1018 KiB/s
>>    Download Capacity: 2181 KiB/s
>> Link Responsiveness: 2 Hz
>>      Flow Smoothness: 1 Hz
>>
>> Horrible, isn't it?  I deliberately left these machines with standard
>> configurations in order to show that.
>
> Perhaps a tangential 2 cents from me, but I'm unclear how helpful
> Hertz is as a unit of measurement for the challenge of raising
> awareness of bufferbloat.  I suspect data networking people (whether
> network designers, admins, product managers, etc) don't think of IP
> networks as having characteristics measured in Hertz. And I'd imagine
> most ISP helpdesks wont know how to parse customer complaints along
> the lines of "your service doesn't give me enough Hertz".  Perhaps
> your tool could also add a parenthetical 'translation' of the
> responsiveness and smoothness values into something expressed in
> milliseconds?

Concur. And resolution past 3 significant digits from there seems
possible with posix timers. I regret that I have not had time to look
over the code yet this weekend.

How'd they do debloated?

>
> cheers,
> gja
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-- 
Dave Taht
http://nex-6.taht.net