--- Day changed Sat Mar 25 2017
00:14 < waxwing> i was gonna say, that's just a config error
00:14 < waxwing> interesting, thanks. on tails as well, hmm.
00:14 < waxwing> i probably mentioned before, but this might help: https://github.com/AdamISZ/joinmarket-clientserver/blob/master/docs/tumblerguide.md
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11:43 < GithubBot5678> [joinmarket] WyseNynja opened pull request #725: Add "extend_mixdepth=True" to yieldgen (develop...patch-2) https://git.io/vSIIR
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12:06 < ananteris> yeah.. but after using it a while it's clear theres still some issues... python is running excrutciatingly slow.. to the point where it takes ~10 minutes just for wallet-tool to ask for a password
12:07 < waxwing> ananteris: ouch. how much ram?
12:16 < ananteris> 8gb, 3gb free
12:17 < waxwing> hmm, so 10 mins to ask for a password, using your Core node (pruned), on Tails, wallet near-empty or big history?
12:18 < waxwing> sounds kinda interesting
12:18 < waxwing> hang on, it only syncs *after* password. what's going on?
12:21 < belcher> reading from disk maybe super slow?
12:21 < belcher> or just starting up python, or maybe connecting to bitcoind's json rpc
12:21 < waxwing> yeah, weird, isn't it.
12:21 < belcher> very
12:22 < waxwing> yeah it only does the initial 'getblockchaininfo' sanity check over rpc before the password.
12:25 < ananteris> brand new wallet
12:25 < ananteris> well, it's not a full 10 for the password ask, but its significantly longer than the last version, importing addresses is where the real hang is
12:26 < ananteris> disk io isn't the bottleneck and cpu is idle
12:26 < ananteris> well, mostly.. that is python isn't in a busy loop
12:29 < waxwing> gotta admit i find that hard to believe - for running wallet-tool, it doesn't do anything different. e.g. that whole daemon and twisted part is not used at all there.
12:29 < waxwing> the code is very nearly identical.
12:30 < belcher> are there more import statements used?
12:30 < belcher> they might take a long time if it requires reading from and compiling python bytecode?
12:30 < waxwing> yeah. it should require more memory.
12:30 < waxwing> hmm i guess. seems a stretch, but, don't know.
12:30 < waxwing> i mean existing code sits in about, what, 30MB?
12:31 < belcher> that also includes any libraries it uses
12:31 < waxwing> in itself couldn't really cause those symptoms i *think*
12:36 < ananteris> you aware of any way to inspect the callstack of a python process while it's running? I can write it meh but don't ever debug it.. there's also 3 warning, 2 in skep256k1 about an implicit char * cast, and the other in the most recent version of cffi (gotten from pip --upgrade) complaining about point_conversion_form_t assuming something is an unsigned int
12:37 < ananteris> wallet tool won't even actually complete, I assumed it was alot slower.. joinmarketd/tumbler will run with an old wallet
12:37 < waxwing> the 2 about implicit char* are normal (unfortunately!), the 3rd i haven't seen though.
12:38 < waxwing> ananteris: are you sure you haven't accidentally picked up a default config?
12:38 < waxwing> you're running from within the scripts/ directory, right, and updated the joinmarket.cfg in that directory?
12:39 < waxwing> a default config is created whenever one isn't in that directory, and it has blockr by default iirc
12:39 < ananteris> yeah, it's a new config, updated to my settings
12:39 < waxwing> (which of course wouldn't work). but i guess it can't be that.
12:39 < waxwing> so it literally just hangs?
12:39 < ananteris> gdb apparently has a python mode for attaching
12:39 < waxwing> yeah that would be a cool trick to do, i've never done it.
12:40 < waxwing> is there some super-weirdness with the network and rpc. did you try doing rpc calls by hand?
12:40 < ananteris> yup, rpc calls, at least through bitcoin-cli work.. havn't tried with curl
12:41 < ananteris> http://pastebin.com/KnnifrzS
12:42 < waxwing> and just sits there after that?
12:42 < waxwing> but yeah i presume that is a cffi version thing, never seen it
12:42 < waxwing> i should try to reproduce this perhaps
12:44 < waxwing> didn't focus on it since we got a lot fewer people interested after blockr stopped working and Core was hard. i know it's ridiculous that people were using it with blockr, but they were. most didn't seem prepared to do the work to get it working with Core.
12:45 < waxwing> it seemed like in the early days there was more interest in setting it up with Core. but now pruning, it should really be easier.
12:48 < ananteris> yeah... probably sooner or later you're going to see nightly snapshots getting released somewhere of a pruned blockchain.. even though its an extremely stupid idea
12:48 < ananteris> afaik
12:49 < waxwing> ananteris: if there's really no other output than that, then yeah it's really needed to figure out where it's hanging. it both "only makes sense" and "makes no sense at all" that the json rpc connections are hanging or something :)
12:49 < waxwing> especially if your first report is true: that there is a long delay *before* password. i suppose memory shortage can cause these symptoms, but you said tails had 3GB free, so .. no.
12:49 < ananteris> theres more.. actually just noticed i clipped a line of the exception for cffi
12:50 < ananteris> up to hang... http://pastebin.com/3QZ26VVH
12:52 < waxwing> 2 minutes for getaddressesbyaccount is nuts .. on a fresh wallet! that's just 1 rpc call.
12:52 < waxwing> and the python calculations are trivial.
12:54 < waxwing> ananteris: re that warning: https://www.reddit.com/r/joinmarket/comments/5t7cti/unable_to_install_libsecp_dependency/ddlrq1e/
12:55 < ananteris> it's something weirder than just RPC.. I have a script that does a bitcoin-cli getreceivedbyaddress on 500 addresses and it completes in 2s
12:55 < waxwing> this guy had a crash not a slowdown, but i googled and found the same string.
12:55 < waxwing> meh, maybe false trail.
12:56 < waxwing> but it's really important: do you see a slowdown *before* the passphrase? i see 19:05:04 but i can't see at what time the passphrase entry occurs
12:59 < ananteris> there is a 2 minute delay for the password prompt, so yes
12:59 < ananteris> not an entire 10 minutes though
12:59 < ananteris> it's long
12:59 < waxwing> hmm i'll check the code again but pretty sure no secp256k1 operations before that.
12:59 < waxwing> so unless it's somehow very slow both in loading, and then executing? doesn't make sense.
13:00 < waxwing> if you can't get that gdb thing to work you could just put print statements around the json rpc calls in jmclient/jsonrpc.py as a sanity check to see how fast they are
13:00 < ananteris> well it's a liveOS, there are periodic IO lag spikes.. but not for THAT long.. plus eventually it gets cleared up which isn't happening for the get address hang
13:01 < waxwing> i'd def put print statements around those lines as a first check to eliminate json rpc calls
13:01 < ananteris> alright
13:01 < waxwing> https://github.com/AdamISZ/joinmarket-clientserver/blob/master/jmclient/jmclient/jsonrpc.py#L111 i guess for example
13:02 < ananteris> autoreconf is a build tool IIRC, so i'm in the middle of a reboot/rebuild to see if that was a dep that will fix it
13:02 < waxwing> i agree it's kinda ridiculous :)
13:02 < waxwing> yeah that autoreconf thing, i was hoping he'd doc exactly what happened there (which OS)
13:03 < ananteris> he said debian, so probably tails
13:04 < waxwing> right could be
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14:23 < emzy> Gerade gefunden https://www.youtube.com/watch?v=ZmZ_tvbhJ0I  Travis Goodspeed – A Keynote in Praise of Junk Hacking
14:23 < emzy> oh wrong channel... 
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