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  5 2018-06-05T00:30:57  <bitcoin-git> [bitcoin] MarcoFalke opened pull request #13395: rpc: Avoid "duplicate" return value for invalid submitblock (master...Mf1806-rpcMiningSubmitblock) https://github.com/bitcoin/bitcoin/pull/13395
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 29 2018-06-05T02:38:15  <bitcoin-git> [bitcoin] glaksmono closed pull request #13322: Fixing texts in the "encrypt wallet" GUI process (master...bitcoin-gui-13245) https://github.com/bitcoin/bitcoin/pull/13322
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 55 2018-06-05T09:18:08  <bitcoin-git> [bitcoin] Empact opened pull request #13396: Drop unused uint 256 not operator (master...drop-bool-not) https://github.com/bitcoin/bitcoin/pull/13396
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 74 2018-06-05T12:00:25  <skeees> just a quick post that #12934 which we discussed at the IRC meeting a few weeks ago (https://bitcoincore.org/en/meetings/2018/05/03/) is now in a reviewable state
 75 2018-06-05T12:00:27  <gribble> https://github.com/bitcoin/bitcoin/issues/12934 | [net] [validation] Call ProcessNewBlock() asynchronously by skeees · Pull Request #12934 · bitcoin/bitcoin · GitHub
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109 2018-06-05T13:49:46  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/0de7cc848e07...861de3b518ad
110 2018-06-05T13:49:46  <bitcoin-git> bitcoin/master 989c899 Giulio Lombardo: Rename “OS X” to the newer “macOS” convention
111 2018-06-05T13:49:47  <bitcoin-git> bitcoin/master 861de3b Wladimir J. van der Laan: Merge #13366: Docs: Rename “OS X” to the newer “macOS” convention...
112 2018-06-05T13:50:47  <bitcoin-git> [bitcoin] laanwj closed pull request #13366: Docs: Rename “OS X” to the newer “macOS” convention (master...osx-renaming) https://github.com/bitcoin/bitcoin/pull/13366
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125 2018-06-05T14:31:42  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/861de3b518ad...7c7508c268fa
126 2018-06-05T14:31:42  <bitcoin-git> bitcoin/master 81bbd32 practicalswift: build: Guard against accidental introduction of new Boost dependencies
127 2018-06-05T14:31:43  <bitcoin-git> bitcoin/master 7c7508c Wladimir J. van der Laan: Merge #13385: build: Guard against accidental introduction of new Boost dependencies...
128 2018-06-05T14:32:42  <bitcoin-git> [bitcoin] laanwj closed pull request #13385: build: Guard against accidental introduction of new Boost dependencies (master...lint-boost) https://github.com/bitcoin/bitcoin/pull/13385
129 2018-06-05T14:34:31  <Roybent> #worldchat
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135 2018-06-05T14:50:35  <provoostenator> While trying to get bitcoind to run on one the many *-pi's out there, I wondered: has anyone ever tried to design a system on chip that's optimal for this?
136 2018-06-05T14:51:17  <echeveria> provoostenator: the optimal processor is anything other than a raspberry pi. lets take this to #bitcoin.
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148 2018-06-05T15:25:53  <Roybent> Invitation Age of sail at #AdventuresofChat
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153 2018-06-05T15:42:23  <bitcoin-git> [bitcoin] MarcoFalke pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/7c7508c268fa...2140f6cbc5e9
154 2018-06-05T15:42:24  <bitcoin-git> bitcoin/master fa36aa7 MarcoFalke: wallet: Prevent segfault when sending to unspendable witness
155 2018-06-05T15:42:24  <bitcoin-git> bitcoin/master 2140f6c MarcoFalke: Merge #13351: wallet: Prevent segfault when sending to unspendable witness...
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157 2018-06-05T15:43:14  <bitcoin-git> [bitcoin] MarcoFalke closed pull request #13351: wallet: Prevent segfault when sending to unspendable witness (master...Mf1806-walletUnspendableWitnessIsMine) https://github.com/bitcoin/bitcoin/pull/13351
158 2018-06-05T15:45:18  <Roybent> Invitation Age of sail at #AdventuresofChat
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161 2018-06-05T15:52:07  <wumpus> provoostenator: you mean secp256k1 specific instructions? people have been thingking about it, could be done on a FPGA, but I don't think it's ever been done
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164 2018-06-05T15:54:08  <provoostenator> echeveria seems to believe sha256 is the bottleneck (see #bitcoin), but also that anything outside the CPU would be too slow I/O to be worh it.
165 2018-06-05T15:55:21  <echeveria> I looked at the Zynq combination FPGA / ARM devices a long time ago and came to the conclusion that the copy time even on the shared memory bus between the two chips would make it non viable. I'd enjoy being proved wrong though.
166 2018-06-05T15:55:44  <Roybent> Invitation Age of sail at #AdventuresofChat
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169 2018-06-05T16:00:40  <sipa> Roybent: not here
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172 2018-06-05T16:04:17  <wumpus> provoostenator: well sha256 extension instructions exist for ARM (supported on newer SoCs), I intend to add support for them at some point. But I would be surprised if that is the biggest bottleneck in validation.
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174 2018-06-05T16:05:08  <wumpus> echeveria: yes, if there is high-bandwidth communication between two chpis that tends to dominate. I was thinking of, say, RiscV extensions for secp256k1 validation so it's in-core.
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176 2018-06-05T16:05:34  <wumpus> for ARM it's somewhat unlikely at this time
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179 2018-06-05T16:07:35  <sipa> secp256k1 validation only needs 6 Mbyte/s or so bandwidth to be faster than regular cpu cores
180 2018-06-05T16:08:47  <wumpus> even an USB2.0 secp256k1 dongle would work then
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183 2018-06-05T16:11:19  <provoostenator> Many of these boards have DDR2-SODIMM sockets that you stick something into...
184 2018-06-05T16:11:31  <echeveria> my conclusion was that it would take longer to copy than to do it on the CPU
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186 2018-06-05T16:13:51  <echeveria> perhaps that's not true.
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188 2018-06-05T16:14:11  <echeveria> I wasn't able to find any research on doing ECDSA on a FPGA that looked promising though
189 2018-06-05T16:14:17  <wumpus> M.2 expansion slots are also becoming quite common (though there are lots of different "keys" which makes it unclear what is uncompatible, but some of them include PCI-e lanes)
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191 2018-06-05T16:15:06  <provoostenator> Well, I just got my Nanopi Neo Plus 2, an Orange Pi Plus 2E is underway, as well as the octacore Khadas VIM2 Max... so if anyone needs something benchmarked.
192 2018-06-05T16:15:25  <echeveria> secp256k1's benchmark will say "slow"
193 2018-06-05T16:16:11  <wumpus> echeveria: I could find some research on that, but for specific curves this is not something that tends to exist as open source :)
194 2018-06-05T16:16:17  <provoostenator> At least they have wifi support, so I can put them in the freezer to keep the CPU's from downclocking :-)
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196 2018-06-05T16:16:40  <echeveria> wumpus: for non specific curves the research presented speeds slower than a small ARM core sadly
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198 2018-06-05T16:19:25  <wumpus> echeveria: right - the hardware would really need to be optimized for a specific properties, otherwise it's not going to help compared to just a sw implementation
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201 2018-06-05T16:21:36  <wumpus> echeveria: the secp256k1 library isn't easy to compete against I suppose
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229 2018-06-05T17:06:43  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/2140f6cbc5e9...f0fd39f37630
230 2018-06-05T17:06:44  <bitcoin-git> bitcoin/master 6aa33fe Ben Woosley: Drop UpdateTransaction in favor of UpdateInput...
231 2018-06-05T17:06:44  <bitcoin-git> bitcoin/master f0fd39f Wladimir J. van der Laan: Merge #13269: refactoring: Drop UpdateTransaction in favor of UpdateInput...
232 2018-06-05T17:07:33  <bitcoin-git> [bitcoin] laanwj closed pull request #13269: refactoring: Drop UpdateTransaction in favor of UpdateInput (master...update-transaction) https://github.com/bitcoin/bitcoin/pull/13269
233 2018-06-05T17:07:46  <bitcoin-git> [bitcoin] MarcoFalke opened pull request #13399: rpc: Add submitblockheader (master...Mf1806-rpcBlockHeader) https://github.com/bitcoin/bitcoin/pull/13399
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255 2018-06-05T17:32:29  <sipa> cfields: going to PR that SSE4 speedup?
256 2018-06-05T17:37:31  <sipa> gmaxwell: the 4-way code is actually SSE4, not SSSE3
257 2018-06-05T17:37:36  <sipa> (it uses pinsrd)
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261 2018-06-05T17:43:58  <sipa> gmaxwell: i think that could be avoided, though if really desired
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264 2018-06-05T17:57:56  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/f0fd39f37630...264efdca74f2
265 2018-06-05T17:57:56  <bitcoin-git> bitcoin/master fa4760f MarcoFalke: qa: Increase includeconf test coverage
266 2018-06-05T17:57:57  <bitcoin-git> bitcoin/master 264efdc Wladimir J. van der Laan: Merge #13367: qa: Increase includeconf test coverage...
267 2018-06-05T17:58:56  <bitcoin-git> [bitcoin] laanwj closed pull request #13367: qa: Increase includeconf test coverage (master...Mf1806-qaIncludeconf) https://github.com/bitcoin/bitcoin/pull/13367
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271 2018-06-05T18:05:09  <promag> sipa: have you shared the benchmark code mentioned in #13386?
272 2018-06-05T18:05:11  <gribble> https://github.com/bitcoin/bitcoin/issues/13386 | SHA256 implementations based on Intel SHA Extensions by sipa · Pull Request #13386 · bitcoin/bitcoin · GitHub
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275 2018-06-05T18:06:02  <Silva> Hello !
276 2018-06-05T18:06:39  <Silva> Does Bitcoin implements Multi Signature?
277 2018-06-05T18:08:57  <sipa> promag: bench/bench_bitcoin
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280 2018-06-05T18:10:38  <promag> sipa +1
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282 2018-06-05T18:11:45  <sipa> Silva: https://bitcoin.stackexchange.com
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284 2018-06-05T18:13:56  <Silva> sipa, the bench implements mult_sig ?
285 2018-06-05T18:14:42  <sipa> Silva: not here, this channel is for development
286 2018-06-05T18:15:32  <Silva> actually I would like to know where in the code is this implementation for Multisig ?
287 2018-06-05T18:15:34  <sipa> Silva: if you have general questions about how bitcoin works, see the #bitcoin irc channel, the developer documentation on https://bitcoin.org/en/developer-documentation, or ask on https://bitcoin.stackexchange.com
288 2018-06-05T18:15:45  <sipa> Silva: that's not something i can answer in 3 sentences
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292 2018-06-05T18:22:51  <reca> hello why this issue is locked: https://github.com/bitcoin/bitcoin/issues/13387 ?
293 2018-06-05T18:28:52  <cfields> sipa: sure. I spent some time trying to understand why it didn't apply to the avx2 path, and poking at intel's other suggested optims
294 2018-06-05T18:30:26  <sipa> cfields: let me know if you have more things to benchmark
295 2018-06-05T18:31:26  <cfields> sipa: thanks, but I think it's a bit too far out of my wheelhouse. If you're comfortable with the speedup being generic and expected, I'll just PR as-is.
296 2018-06-05T18:31:57  <phantomcircuit> reca, it says in the issue why it's locked
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299 2018-06-05T18:35:05  <reca> phantomcircuit: could you copy/paste here the exact resason pls because seriously I don't see it and in general I don't understand why you closed it
300 2018-06-05T18:36:55  <cfields> sipa: in particular, I'm not understanding why Round() operates on 128/256bit vectors rather than uint32_t's? Is it just the cost of moving them in/out of the larger registers?
301 2018-06-05T18:37:11  <sipa> cfields: hmm?
302 2018-06-05T18:37:45  <sipa> cfields: the __m128i act like 4 parallel 32 bit integers
303 2018-06-05T18:38:12  <sipa> so 'Add' does 4 additions in parallel, Xor does 4 parallel xors in parallel, ...
304 2018-06-05T18:39:05  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/264efdca74f2...a589f536b5e1
305 2018-06-05T18:39:05  <bitcoin-git> bitcoin/master ebec731 Ben Woosley: Drop the chain argument to GetDifficulty...
306 2018-06-05T18:39:06  <bitcoin-git> bitcoin/master a589f53 Wladimir J. van der Laan: Merge #13288: rpc: Remove the need to include rpc/blockchain.cpp in order to put `GetDifficulty` under test...
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308 2018-06-05T18:39:34  <sipa> cfields: operating on uint32's would lose the SIMD speedup
309 2018-06-05T18:39:50  <bitcoin-git> [bitcoin] laanwj closed pull request #13288: rpc: Remove the need to include rpc/blockchain.cpp in order to put `GetDifficulty` under test (master...get-difficulty) https://github.com/bitcoin/bitcoin/pull/13288
310 2018-06-05T18:39:59  <reca> sipa: where are this official git mirrors of the bitcoin core ?
311 2018-06-05T18:40:05  <sipa> reca: git clone
312 2018-06-05T18:40:08  <cfields> sipa: yes, I understand that. It just doesn't look how I would expect.
313 2018-06-05T18:40:29  <sipa> reca: there is no urgent issue; we can have a discussion about alternatives, but the ownership of github doesn't affect us
314 2018-06-05T18:40:46  <sipa> reca: if microsoft would start making invasive changes to the platform, then of course that changes
315 2018-06-05T18:41:14  <sipa> reca: as explained in the issue, we don't actually rely on github for maintaining the integrity of the code
316 2018-06-05T18:42:01  <sipa> cfields: what would you expect?
317 2018-06-05T18:42:31  <reca> sipa: for me it doesn't really matter who owns Github the problem is that this tool is not open-source
318 2018-06-05T18:42:42  <wumpus> I'd like to invite Empact (Ben Woosley) and ken281222 (Chun Lee) to the organizations, as they've been contributing very actively, everyone agree?
319 2018-06-05T18:42:57  <achow101> wumpus: ack
320 2018-06-05T18:43:00  <sipa> wumpus: ack
321 2018-06-05T18:43:01  <cfields> ack
322 2018-06-05T18:43:14  <sipa> reca: that's a fair point, but not an urgent issue
323 2018-06-05T18:43:23  <wumpus> thanks
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325 2018-06-05T18:44:26  <wumpus> reca: I just started a mirror on a Tor hidden service FWIW
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327 2018-06-05T18:45:33  <reca> sipa: maybe it's no an urgent issue but it would be nice to have some official git mirrors as a reference to Github
328 2018-06-05T18:45:40  <sipa> reca: i agree!
329 2018-06-05T18:45:42  <wumpus> reca: http://nxshomzlgqmwfwhcnyvbznyrybh3gotlfgis7wkv7iur2yj2rarlhiad.onion/
330 2018-06-05T18:45:56  <reca> wumpus: thx
331 2018-06-05T18:46:07  <phantomcircuit> wumpus, why is that so long? new .onion format?
332 2018-06-05T18:46:26  <wumpus> phantomcircuit: yes, v3 have longer pubkeys
333 2018-06-05T18:46:49  <sipa> ed25519, right?
334 2018-06-05T18:47:03  <cfields> sipa: not sure, I suppose
335 2018-06-05T18:47:22  <sipa> cfields: do you see the semantics of each of the helper functions at the beginning of the file?
336 2018-06-05T18:47:24  <wumpus> phantomcircuit: https://gist.github.com/laanwj/4fe8470881d7b9499eedc48dc9ef1ad1#Appendix_B_Tor_v3_address_encoding
337 2018-06-05T18:47:28  <wumpus> sipa: indeed!
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340 2018-06-05T18:48:30  <cfields> sipa: sure, I see how those operate on multiple values.
341 2018-06-05T18:48:50  <sipa> cfields: same for Round :)
342 2018-06-05T18:49:18  <sipa> each of the a,b,c,d,e,f,g,h variables contains 1/8th of the state for each of the 4 hashes being computed
343 2018-06-05T18:49:30  <cfields> sipa: I just don't see where distinct values are actually loaded, other than wX.
344 2018-06-05T18:49:45  <sipa> Read4
345 2018-06-05T18:50:13  <sipa> it returns a 128-bit value which contains 32 bits from each of the 4 input blobs
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347 2018-06-05T18:50:52  <sipa> the w0...w16 variables are a moving window of the last 16 round constants
348 2018-06-05T18:51:01  <sipa> which are the expanded form of the input
349 2018-06-05T18:52:13  <cfields> sipa: aha, there it is. Yes, I was misunderstanding. Thank you.
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351 2018-06-05T18:53:12  <cfields> sipa: I kept getting caught up on the fact that it looks like Sigma0/Sigma1 could be computed in-parallel for 3 or 4 values at a time.
352 2018-06-05T18:53:40  <sipa> yup, and it is :)
353 2018-06-05T18:53:45  <cfields> so I was expected the loads to be more local that way
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355 2018-06-05T18:58:15  <gmaxwell> sipa: I don't think anyone cares much about SSSE3 vs SSE4 support.
356 2018-06-05T18:58:22  <sipa> gmaxwell: okay!
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362 2018-06-05T19:06:47  <bitcoin-git> [bitcoin] theuni opened pull request #13400: sha256: small speedup for sse4 path. (master...sha2-avx1) https://github.com/bitcoin/bitcoin/pull/13400
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364 2018-06-05T19:07:31  <gmaxwell> sipa: ^ you should see if thats a speedup on ryzen. :P
365 2018-06-05T19:07:58  <sipa> gmaxwell: good idea!
366 2018-06-05T19:08:21  <cfields> sipa: I thought that's what your 5% number was?
367 2018-06-05T19:08:30  <sipa> gmaxwell: actually, that's totally irrelevant, as AVX2 will be used there
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369 2018-06-05T19:09:17  <sipa> the benchmark was just a way to spot check that cfields' benchmark wasn't too specific for his system
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371 2018-06-05T19:09:54  <sipa> but i can test there too
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373 2018-06-05T19:10:11  <gmaxwell> Yes, sure but it would be interesting. If its slower on ryzen it's probably also slower on other AMD that doesn't have avx2.
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377 2018-06-05T19:17:06  <sipa> gmaxwell, cfields: ugh, 10% slower on Ryzen
378 2018-06-05T19:17:42  <gmaxwell> lol.
379 2018-06-05T19:17:44  <cfields> sigh
380 2018-06-05T19:17:55  <sipa> sense, it makes none.
381 2018-06-05T19:17:58  <gmaxwell> I think wumpus has some pre-ryzen amd stuff?
382 2018-06-05T19:18:01  <sipa> but cpu scheduling is complicated
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384 2018-06-05T19:20:04  <wumpus> yep
385 2018-06-05T19:20:16  <sipa> wumpus: does it have AVX2?
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387 2018-06-05T19:20:47  <sipa> ("avx2" in /proc/cpuingo)
388 2018-06-05T19:21:23  <wumpus> AMD A9-9420
389 2018-06-05T19:21:24  <wumpus> oh let me see
390 2018-06-05T19:21:47  <wumpus> sipa: it does
391 2018-06-05T19:21:51  <sipa> wumpus: dang :)
392 2018-06-05T19:22:44  <wumpus> I have two other AMD systems I can check though
393 2018-06-05T19:23:14  <sipa> wumpus: ideally we find an SSE4 capable system that does not have AVX2
394 2018-06-05T19:23:27  <sipa> ("sse4_1" in /proc/cpuinfo)
395 2018-06-05T19:24:03  <wumpus> this is a "AMD FX-8370" with only "avx" (also  sse4_1 sse4_2)
396 2018-06-05T19:24:39  <sipa> cool! can you benchmark bench_bitcoin -filter=".*SHA256D64.*" there before and after #13400 ?
397 2018-06-05T19:24:41  <gribble> https://github.com/bitcoin/bitcoin/issues/13400 | sha256: small speedup for sse4 path. by theuni · Pull Request #13400 · bitcoin/bitcoin · GitHub
398 2018-06-05T19:25:10  <wumpus> also an even older one, but that doesn't have sse4_x
399 2018-06-05T19:25:11  <wumpus> sure
400 2018-06-05T19:25:14  <sipa> thanks!
401 2018-06-05T19:25:44  <cfields> woohoo, thanks wumpus!
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413 2018-06-05T19:53:01  <wumpus> cfields: sipa: about 25% slower with #13400 https://0bin.net/paste/P1dcff3jykaU7h6p#KjX2cwzdyI8KyExoUEgxfCSyXtspgYnIkH7nUJRND-W
414 2018-06-05T19:53:02  <gribble> https://github.com/bitcoin/bitcoin/issues/13400 | sha256: small speedup for sse4 path. by theuni · Pull Request #13400 · bitcoin/bitcoin · GitHub
415 2018-06-05T19:53:11  <cfields> whoa
416 2018-06-05T19:54:17  <cfields> ok, closing. Not worth playing that game.
417 2018-06-05T19:55:05  <wumpus> sorry
418 2018-06-05T19:56:40  <cfields> no worries. It was a cheap/easy boost, but not enough to miss.
419 2018-06-05T19:57:06  <wumpus> just repeated the test, same result, kind of counter-intuitive, but yes it's how these things go
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421 2018-06-05T19:57:55  <cfields> uhmm, whoa...
422 2018-06-05T19:58:20  <cfields> wumpus: mind testing one more time, adding -mavx to SSE41_CXXFLAGS ?
423 2018-06-05T19:59:47  <wumpus> yes, will try
424 2018-06-05T20:00:04  <wumpus> with the patch or both with and without?
425 2018-06-05T20:01:48  <cfields> I just tested with, and got a ~65% speedup. Haven't tested without yet.
426 2018-06-05T20:01:56  <cfields> (also haven't investigated where it comes from yet)
427 2018-06-05T20:02:49  <sipa> cfields: whoa!
428 2018-06-05T20:02:51  <wumpus> will try both then
429 2018-06-05T20:03:07  <sipa> should we provide an sse4+avx implementation (just the same code with mavx enabled)?
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431 2018-06-05T20:04:34  <cfields> sipa: if that's reproducible, I'd say that's justifiable. I'm assuming it's pebcak for now though :)
432 2018-06-05T20:04:44  <gmaxwell> that seems bonkers
433 2018-06-05T20:05:23  <sipa> AVX adds 256-bit registers
434 2018-06-05T20:05:39  <sipa> which perhaps the compiler uses as extra register space (instead of spilling to stack)
435 2018-06-05T20:10:44  <wumpus> cfields: this has the results added with -mavx - https://0bin.net/paste/ReThQTAAWhKYfH7x#K99wDsZBBbtqEnc1N44e9UWz2E-t1y2jDhByhD8BBZe - not much difference from before
436 2018-06-05T20:11:35  <cfields> huh. I've repeated mine several times now.
437 2018-06-05T20:12:38  <sipa> looking at the generated code, with -mavx -msse4, the 4-way SSE asm code uses 256-bit registers extensively
438 2018-06-05T20:13:23  <sipa> so it's not unreasonable to expect that on some systems, its performance is affected
439 2018-06-05T20:13:24  <cfields> sipa: do you see an improvement over master?
440 2018-06-05T20:13:32  <sipa> haven't benchmarked yet
441 2018-06-05T20:13:39  <wumpus> cfields: well either it's due to this system, or I'm doing something wrong
442 2018-06-05T20:13:58  <wumpus> -AX_CHECK_COMPILE_FLAG([-msse4.1],[[SSE41_CXXFLAGS="-msse4.1"]],,[[$CXXFLAG_WERROR]])
443 2018-06-05T20:14:01  <wumpus> +AX_CHECK_COMPILE_FLAG([-msse4.1],[[SSE41_CXXFLAGS="-msse4.1 -mavx"]],,[[$CXXFLAG_WERROR]])
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445 2018-06-05T20:14:04  <wumpus> that's the correct patch?
446 2018-06-05T20:14:05  <sipa> it's also not unreasonable that the impact of such changes is wildly different on Intel vs AMD cpus
447 2018-06-05T20:14:10  <sipa> wumpus: yup
448 2018-06-05T20:14:52  <cfields> wumpus: yep, didn't mean to imply that you did something wrong :)
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451 2018-06-05T20:18:01  <bitcoin-git> [bitcoin] theuni closed pull request #13400: sha256: small speedup for sse4 path. (master...sha2-avx1) https://github.com/bitcoin/bitcoin/pull/13400
452 2018-06-05T20:20:01  <wumpus> I vaguely remember earlier troubles with AVX sha256 and this particular computer
453 2018-06-05T20:20:41  <cfields> well at least it's no worse
454 2018-06-05T20:22:16  <wumpus> bleh, at some point you'd need to benchmark on every specific vendor and model seperately to see what is the best way
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457 2018-06-05T20:32:19  <Rebo> hi does anyone here has experience with setting up a bitcoin full node on an azure virtual machine?
458 2018-06-05T20:42:57  <bitcoin-git> [bitcoin] TheBlueMatt opened pull request #13402: Document validationinterace callback blocking deadlock potential. (master...2018-05-abc-scheduler-docs) https://github.com/bitcoin/bitcoin/pull/13402
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460 2018-06-05T20:46:40  <wumpus> Rebo: better ask in #bitcoin
461 2018-06-05T20:46:52  <Rebo> ah thank you
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