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62016-08-02T00:18:39 <GitHub23> [bitcoin] pstratem opened pull request #8445: Move CWallet::setKeyPool to private section of CWallet. (master...2016-07-01-cwallet-api-cleanup) https://github.com/bitcoin/bitcoin/pull/8445
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162016-08-02T01:08:56 <Chris_Stewart_5> is there a line of code I can change somewhere to compile the entire project with c++11 standard?
172016-08-02T01:10:57 <sipa> we already do
182016-08-02T01:12:48 <sipa> as in: you can't compile the 0.13 codebase with c++03 anymore
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202016-08-02T01:14:18 <Chris_Stewart_5> I'm still learning C++ build systems. What file is this specified in exactly? I've searched configure.ac, Makefile.am, Makefile.in
212016-08-02T01:14:32 <Chris_Stewart_5> The only reference to 'c++11' I can find is wrt to boost inside of configure.ac
222016-08-02T01:16:56 <sipa> line 59
232016-08-02T01:17:27 <sipa> AX_CXX_COMPILE_STDCXX([11], [noext], [mandatory])
242016-08-02T01:18:06 <Chris_Stewart_5> Ahh ok. Thank you
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262016-08-02T01:18:55 <phantomcircuit> a bunch of the tests in wallet/test/rpc_wallet_tests.cpp seem to be pretty confused
272016-08-02T01:19:06 <phantomcircuit> things like calling getbalance on an address instead of an account and stuff
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292016-08-02T01:26:39 <sipa> phantomcircuit: wah
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312016-08-02T01:34:24 <phantomcircuit> sipa: yeah... line 104
322016-08-02T01:34:26 <phantomcircuit> BOOST_CHECK_NO_THROW(CallRPC("getbalance " + demoAddress.ToString()));
332016-08-02T01:34:34 <phantomcircuit> that's basically completely meaningless
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392016-08-02T02:15:29 <kanzure> https://twitter.com/kanzure/status/760297796411002880
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652016-08-02T05:50:07 <wumpus> phantomcircuit: I don't think rpc_wallet_tests.cpp should ideally exist at all
662016-08-02T05:50:18 <wumpus> phantomcircuit: it is from before we had the RPC functional tests framework
672016-08-02T05:50:49 <wumpus> unit tests that check RPC behavior, except for the most basic level, aren't really unit tests
682016-08-02T05:51:17 <wumpus> so if someone takes care that everything that is in rpc_wallet_tests.cpp and is worthwhile is being tested in the RPC wallet tests, the file can go
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702016-08-02T05:51:54 <phantomcircuit> wumpus: great im pretty sure we're already doing that and this is doing a bunch of reallllly weird stuff
712016-08-02T05:52:02 <wumpus> great
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742016-08-02T06:27:26 <GitHub156> [bitcoin] laanwj pushed 6 new commits to master: https://github.com/bitcoin/bitcoin/compare/ea268747b6d4...63c03dd41cc0
752016-08-02T06:27:27 <GitHub156> bitcoin/master 56c87e9 Suhas Daftuar: Allow changing BIP9 parameters on regtest
762016-08-02T06:27:27 <GitHub156> bitcoin/master 9c8593d Pieter Wuille: Implement SipHash in Python
772016-08-02T06:27:28 <GitHub156> bitcoin/master a8689fd Suhas Daftuar: Tests: refactor compact size serialization in mininode
782016-08-02T06:27:36 <GitHub180> [bitcoin] laanwj closed pull request #8418: Add tests for compact blocks (master...cb-testing) https://github.com/bitcoin/bitcoin/pull/8418
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1182016-08-02T08:30:47 <GitHub103> [bitcoin] paveljanik opened pull request #8446: BIP9 parameters on regtest cleanup (master...20160802_shadow_bip9params) https://github.com/bitcoin/bitcoin/pull/8446
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1372016-08-02T11:18:24 <wumpus> cfields: I don't get it, I don't manage to compile master for ARM anymore: https://github.com/bitcoin/bitcoin/issues/8447 however, in travis it's working. What could be the difference, that I'm compiling my own toolchain?
1382016-08-02T11:19:10 <wumpus> I guess I'll try in a trusty VM
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1412016-08-02T11:30:48 <wumpus> maybe this is false alarm and the g++ compiler produced by crosstool lacks some feature to support the c++11 threading primitives, or I've just forgot to pass some setting
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1692016-08-02T15:10:00 <GitHub15> [bitcoin] laanwj closed pull request #8436: Update release-notes.md (0.13...patch-1) https://github.com/bitcoin/bitcoin/pull/8436
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2002016-08-02T18:57:03 <Sanakov> Hello everybod: Yesterday we launched https://www.bitfuse.org; Share your files and get paid in bitcoins.
2012016-08-02T18:57:08 <Sanakov> Please let me know what you think of the website.
2022016-08-02T19:02:58 *** supasonic has quit IRC
2032016-08-02T19:03:30 <molz> Sanakov, wrong channel
2042016-08-02T19:07:36 <Sanakov> where
2052016-08-02T19:07:48 <Sanakov> do I post stuff like this then? Any suggestions
2062016-08-02T19:07:50 <Sanakov> Thank you
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2102016-08-02T19:24:59 <instagibbs> Sanakov, #bitcoin-otc
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2132016-08-02T19:27:52 <Sanakov> thanks
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2162016-08-02T19:59:28 <morcos> cfields: sipa: i've benchmarked the cumulative results of what jeremy and i have been working on.
2172016-08-02T19:59:39 <morcos> http://imgur.com/a/WPvi1
2182016-08-02T20:00:21 <sipa> morcos: nice!
2192016-08-02T20:00:26 <sipa> morcos: what is tipcache?
2202016-08-02T20:00:27 *** sipa sets mode: -o sipa
2212016-08-02T20:00:37 <morcos> still a bit more work to go before PR's and we probably need to figure out how to apply NicolasDorier's hash cache as well
2222016-08-02T20:00:59 <morcos> tipcache is a permanent CCoinsViewCache in front of pcoinstip instead of creating a new one each ConnectBlock
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2242016-08-02T20:01:34 <morcos> its prepopulated every 30 secs by the inputs necessary for a block created by CreateNewBlock (takes on average 13ms)
2252016-08-02T20:01:47 <sipa> ha
2262016-08-02T20:01:55 <morcos> and its only cleared after a block is connected
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2282016-08-02T20:02:12 <morcos> this also serves to keep pcoinsTip itself properly warm
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2302016-08-02T20:02:40 <sipa> interesting
2312016-08-02T20:02:51 <morcos> so all these tests are with about 550M of total caches (300M dbcache, 100M sigcache, approx 150M tipcache) or 450M dbache if not using tipcache
2322016-08-02T20:03:41 <morcos> so overal cpu running time is increased of course using tipcache, but it happens out of critical path and its quick enough that its not hurting anything i dont' think 13ms every 30 secs
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2352016-08-02T20:06:39 <sipa> morcos: i can do benchmarks on a 52-core system, if you have code for me to test
2362016-08-02T20:06:45 <sipa> s/core/thread/
2372016-08-02T20:07:28 <jeremyrubin> woooo
2382016-08-02T20:07:34 <morcos> ah, ok good , yeah i have 16 cores / 32 threads
2392016-08-02T20:07:42 <jeremyrubin> How many cores?
2402016-08-02T20:08:06 <sipa> 2 chips, each 13 cores, each 2 threads
2412016-08-02T20:08:17 <gmaxwell> s/13/14/
2422016-08-02T20:08:18 <morcos> i tried setting scriptcheck threads to 24 or 32 and it slowed down a lot in all versions
2432016-08-02T20:08:38 <sipa> oops, 56, not 52
2442016-08-02T20:08:47 <jeremyrubin> how is the memory bus configured?
2452016-08-02T20:09:03 <jeremyrubin> im curious how the lockfree stuff is implemented
2462016-08-02T20:09:19 <jeremyrubin> nvm
2472016-08-02T20:10:20 <jeremyrubin> (but in general, if someone better understands the lockfree stuff there are a bunch of low hanging fruit optimizations to investigate, although as is it's already fast enough to forget about for a while)
2482016-08-02T20:10:39 <morcos> in any case the question there will only be whether it gets slower, as there isn't much room to get faster by more parallelism without changes. waiting on verification is pretty minimal now.
2492016-08-02T20:10:57 <morcos> i suppose it could help a lot on startup/reindex, where you don't have warm caches (sig or pcoinstip)
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2512016-08-02T20:11:22 <jeremyrubin> quick q: best way to give up cpu cycles
2522016-08-02T20:11:34 <jeremyrubin> eg, sleep(0), this_thread::yield()
2532016-08-02T20:11:43 <sipa> jeremyrubin: i wonder about the same
2542016-08-02T20:11:58 <gmaxwell> jeremyrubin: it's numa. with 4-way parallel memory on each of the two chips.
2552016-08-02T20:12:21 <morcos> sipa: have you figured out what the optimal number of scriptcheck threads is for you do do a reindex is right now?
2562016-08-02T20:12:51 <sipa> morcos: i have not; will do
2572016-08-02T20:15:00 <sipa> morcos: how do you benchmark? use -debug=bench numbers?
2582016-08-02T20:15:58 <morcos> sipa: yes thats what i've been doing
2592016-08-02T20:16:23 <morcos> although for reindex, i guess the actual time elapsed is most interesting
2602016-08-02T20:17:15 <sipa> for the graph you posted above... where do those come from?
2612016-08-02T20:18:03 <morcos> thats using sdaftuar's simulation mode over the first 3 days of may (470 blocks)
2622016-08-02T20:18:23 <morcos> so a bit biased by having no mempool at the beginning of that period..
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2932016-08-02T22:49:05 <NicolasDorier> Actually, the bug I pointed out yestersday about time-too-new may really be a problem: https://www.reddit.com/r/Bitcoin/comments/4vsvvm/bitcoind_stuck_at_block_422168_timestamp_too_far/.
2942016-08-02T22:49:05 <NicolasDorier> Having seen that independently, I tried to make a test to reproduce the bug in regnet. However I could not reproduce: If the block was rejected for time-too-new, then later rebroadcasted it worked fine and was reconsidered. I've not tried with header first propagation though
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3012016-08-02T23:32:20 <gmaxwell> NicolasDorier: maybe if its rejected during the startup checks.
3022016-08-02T23:32:37 <gmaxwell> e.g. set time forward, accept a block. shut down, turn time back. restart.
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3062016-08-02T23:37:08 <sipa> NicolasDorier: i don't understand the logs there
3072016-08-02T23:37:38 <sipa> the "CheckBlockHeader(): block timestamp too far in the future" message is something that implies a header is being received that at the time of receipt is too far in the future
3082016-08-02T23:38:04 <sipa> while the "AcceptBlockHeader: block is marked invalid" message is about the header being marked as invalid in the database
3092016-08-02T23:38:55 <sipa> the two should never occur together
3102016-08-02T23:39:07 <sipa> as the first should result in us not storing the header at all
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