[Bloat] passive network delay monitoring utility

[Kathleen Nichols]

Eric,

You are the king of Making The Right Thing Happen.

	Kathie

On 5/23/17 12:50 PM, Eric Dumazet wrote:
> I had the honor to attend Kathleen presentation at Google ;)
> 
> I then worked on making sure TCP TS TSval  would use 1ms units,
> regardless of CONFIG_HZ option in the kernel, since apparently some
> distros/devices use HZ=250 or even HZ=100
> 
> This should be in linux-4.13 when released.
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git/commit/?id=9a568de4818dea9a05af141046bd3e589245ab83
> 
> Cover letter for the patch series :
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git/commit/?id=e26925ec03b31f5ae4c1fc544515486229334ef9
> 
> 
> On Tue, 2017-05-23 at 15:22 -0400, Jim Gettys wrote:
>> Those of you who have not looked at pping should do so.
>>
>>
>> See: http://pollere.net/pping.html for a description, and look at the
>> slides linked to on that page.
>>
>>
>> In particular, it would be sweet to run this on a home router, as you
>> can monitor latency simultaneously in either direction.  Then we can
>> point a finger properly at the ISP or at the WiFi in the home network
>> (encouraging either/both to get fixed).
>>
>>
>> Anyone interested in undertaking such a project with me, please drop
>> me a note.
>>
>>
>> The only downside is that pping is a C++ app, which makes it big for a
>> home router, so it can't be used on old small home routers due to
>> footprint issues; but many current home routers would have space for
>> it.
>>
>>
>>                                                  - Jim
>>
>>
>>
>>
>>
>>
>>
>> On Sun, Apr 30, 2017 at 8:41 PM, Kathleen Nichols
>> <nichols at pollere.com> wrote:
>>         
>>         Hi,
>>         I've just made one of the tools I use to measure network delay
>>         available with a GPLv2 license. Perhaps it will be of
>>         intererst.
>>         
>>         https://github.com/pollere/pping
>>         
>>                 Kathie
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>>
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> 
>