Re: [Bloat] passive network delay monitoring utility

2017-05-26 Thread Kathleen Nichols
Couple of things. First, it's probably not hard to write a pping in other languages but c++ is my go to. (I am sort of learning javascript right now.) I think it's great if we get other versions. Secondly, for anyone who seriously wants to localize delay in their application/device/ what-have-you

Re: [Bloat] passive network delay monitoring utility

2017-05-26 Thread 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, si

Re: [Bloat] passive network delay monitoring utility

2017-05-23 Thread Eric Dumazet
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.kerne

Re: [Bloat] passive network delay monitoring utility

2017-05-23 Thread Jim Gettys
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 p

[Bloat] passive network delay monitoring utility

2017-04-30 Thread Kathleen Nichols
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 ___ Bloat mailing list Bloat@lists.bufferbloat.net https://lists.bufferb