19:01:07 <laanwj> #startmeeting 
19:01:07 <core-meetingbot> Meeting started Thu Jul 29 19:01:06 2021 UTC.  The chair is laanwj. Information about MeetBot at https://bitcoin.jonasschnelli.ch/ircmeetings.
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19:01:22 <hebasto> hi
19:01:23 <laanwj> #bitcoin -core-dev Meeting: achow101 _aj_ amiti ariard BlueMatt cfields Chris_Stewart_5 darosior digi_james dongcarl elichai2 emilengler fanquake fjahr gleb glozow gmaxwell gwillen hebasto instagibbs jamesob jarolrod jb55 jeremyrubin jl2012 jnewbery jonasschnelli jonatack jtimon kallewoof kanzure kvaciral laanwj lightlike luke-jr maaku marcofalke meshcollider michagogo moneyball morcos
19:01:24 <laanwj> nehan NicolasDorier paveljanik petertodd phantomcircuit promag provoostenator ryanofsky sdaftuar sipa vasild
19:01:26 <gene> hi
19:01:28 <gleb> hi
19:01:30 <sipa> hi
19:01:35 <achow101> hi
19:01:39 <kanzure> hi
19:01:42 <kvaciral[m]> hi
19:02:48 <laanwj> welcome to the weekly bitcoin-core-dev meeting, no pre-proposed meetings for today
19:02:55 <jonatack> hi
19:02:56 <laanwj> topics*
19:03:00 <laanwj> any last minute topics?
19:03:13 <gleb> I have one
19:03:16 <ariard> hi
19:03:34 <ariard> quick coredev updates
19:03:45 <gleb> "Acceptable transaction relay latency"
19:03:58 <laanwj> 22.0rc1 ran into guix build problems, we'll be doing a rc2 soon
19:04:38 <laanwj> #topic High priority for review
19:04:38 <core-meetingbot> topic: High priority for review
19:04:55 <laanwj> https://github.com/bitcoin/bitcoin/projects/8   8 PRs currently tagged as blockers
19:05:09 <laanwj> is there anything to add, remove or that is (almost) ready for merge?
19:07:18 <laanwj> seems not!
19:07:45 <laanwj> then let's move to the next topic
19:07:47 <laanwj> #topic Acceptable transaction relay latency (gleb)
19:07:47 <core-meetingbot> topic: Acceptable transaction relay latency (gleb)
19:08:52 <sipa> gleb: ?
19:08:53 <gleb> Yeah so after a slight protocol update to Erlay we discussed here at some point, it becomes apparent how sacrificing some latency allows to save bandwidth. The trade-off is somewhat non-trivial...
19:09:40 <gleb> My estimates show a transaction takes 4-5 seconds to relay across 95% of the nodes
19:09:55 <sipa> right now?
19:09:58 <gleb> Yes
19:10:12 <gleb> What if we increased it to 10 seconds? How we should even think about these numbers
19:10:18 <sipa> is that a measurement of the network, or something you conclude from simulating something like the current network?
19:10:19 <gleb> For a good reason, of course.
19:10:36 <gleb> simulating, but also I saw someone confirming this independently from me.
19:11:37 <sipa> i think that anything that is "small" compared to the interblock time is fine, but perhaps this is more something to discuss on the ML?
19:12:13 <gleb> sipa: hm, good point, maybe ML or slow-communication github issue is a better venue.
19:12:20 <gleb> Also, I hear your point about interblock time.
19:12:41 <gleb> For now just getting quick feedback.
19:13:38 <gleb> Okay, I guess no other opinions for now :) Let's move on then.
19:13:58 <sipa> can also be discussed on the PR i guess
19:14:10 <gleb> It becomes unreadable :(
19:14:20 <sipa> yeah...
19:14:22 <gleb> I already feel somewhat bad for having 100 resolved comments there
19:14:33 <jonatack> maybe a dedicated issue
19:14:40 <laanwj> right just make a new issue
19:14:57 <gleb> yeah gonna do that.
19:15:03 <laanwj> github's lack of a threading structure makes that necessary
19:15:24 <laanwj> #topic Coredev updates (ariard)
19:15:25 <core-meetingbot> topic: Coredev updates (ariard)
19:15:27 <ariard> hi
19:15:54 <ariard> so restrictions in france aren't improving, we're discussing with others orgas to move in another country
19:16:03 <ariard> top candidate for now is switzerland
19:16:16 <ariard> dates will stay the same
19:16:47 <ariard> they do have a nice tool to check the conditions of entries here, like which vaccins are accepted, which countries :https://travelcheck.admin.ch/home
19:17:02 <jonatack> restrictions certainly are a moving target
19:17:17 <jarolrod> iceland?
19:17:46 <jarolrod> although i believe they have restrictions against eastern block countries
19:17:56 <ariard> jarolrod: note, there is a visa issue, we do have attendees coming from asia/non-first class countries
19:18:10 <ariard> switzerland is okay for uk/usa/eu, i'm still checking for the other cases
19:18:28 <ariard> and the good thing it will be easier to accesss for our american friends :)
19:18:34 <jarolrod> ah yes. Very complicated. Thank you to those coordinating and doing the work :)
19:18:55 <ariard> so we'll take a decision before august 23rd (or 3 meeting from now)
19:19:26 <jonatack> (i recently recalled that i know the owner of an amazing chateau here and it would have been pretty amazing to do it there...maybe next time)
19:19:37 <ariard> meanwhile, gonna send a mail for topics collection/signal group in the coming weeks
19:20:04 <ariard> stats levels, we do have 33 yes so far, and sponsoring for travel subsidies should be okay
19:20:24 <ariard> voila, if you have nay question feel free to reach jonatack or schmidty or me, staying available
19:20:33 <ariard> *any
19:20:37 <jarolrod> thanks for the update!
19:21:17 <laanwj> yes, thanks for the update, and for sticking with it, it's definitely not easy this time
19:21:32 <sipa> one day we will meet again! in person!
19:21:37 <laanwj> yess
19:22:15 <laanwj> any other topics for today?
19:23:03 <laanwj> #endmeeting