On Sun, Jan 15, 2023 at 11:14 PM Sebastian Moeller <moell...@gmx.de> wrote: > > Hi Dave, > > On 16 January 2023 02:52:45 CET, Dave Taht <dave.t...@gmail.com> wrote: > >A rather long, meandering piece: > > > >https://blog.cerowrt.org/post/flaws_in_flent/ > > I think 'Flent’s default sampling rate is too low' has a conceptually simple > solution, record dats at high sample rates and optionally downsample before > plotting... However with the range of network speeds flent covers picking a > sane default is going to be a challenge. With almost all endhosts sporting > gigabit ethernet interfaces and beyond I am unsure whether basing the sample > rate on to-be-detected interface rate would help (it might serve to give an > upper bound for sampling rate).
The real problem is we run out of cpu when polling ss too fast. I haven't played with google labs' sampler as yet, it's here: A righter answer, long term, is to start wedging a lag meter, and sampling TCP_INFO, directly into more utilities and libraries. Adding a lag meter to git, for example, would get some eyeballs on bufferbloat quickly. Something that worked within a web browser, passively, would be good also. Getting TCP_INFO sampling into rust and go has been on my mind. https://github.com/rust-lang/socket2/issues/362 And thank you for reading. I am loving having emacs in front of me again. I hope to move more of my workload back into that, including email, and to add a grammar checker, in the hope that more of what I write in the future is more accessible. Assuming I can keep pounding out text at this rate, and continue to improve my workflow, the bufferbloat.net site will improve rapidly. > > regards > Sebastian > > > > > -- > Sent from my Android device with K-9 Mail. Please excuse my brevity. -- This song goes out to all the folk that thought Stadia would work: https://www.linkedin.com/posts/dtaht_the-mushroom-song-activity-6981366665607352320-FXtz Dave Täht CEO, TekLibre, LLC _______________________________________________ Flent-users mailing list -- flent-users@flent.org To unsubscribe send an email to flent-users-le...@flent.org
