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  8 2017-08-28T01:05:46  <gmaxwell> wumpus: we've caught you now, you've been keeping the time machine hidden from us
  9 2017-08-28T01:05:53  <gmaxwell> Date:   Fri Feb 17 17:26:01 2017 +0100
 10 2017-08-28T01:05:56  <gmaxwell>     build: bump version to 0.15.99
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 12 2017-08-28T01:19:07  <achow101> lol
 13 2017-08-28T01:21:44  <bitcoin-git> [bitcoin] ChandlerScheurkogel opened pull request #11172: Fixed a grammar issue. (master...patch-1) https://github.com/bitcoin/bitcoin/pull/11172
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 16 2017-08-28T01:44:05  <midnightmagic> can i use the time machine plz. i gotta deliver a petri dish back about a decade.
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 24 2017-08-28T02:48:26  <meshcollider> Good idea to add an optional bool parameter to decoderawtransaction to override achow101s heuristic test if present? Suggested here:  https://github.com/bitcoin/bitcoin/pull/10481#issuecomment-325244946
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 26 2017-08-28T02:53:41  <meshcollider> s/decoderawtransaction/fundrawtransaction/
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 30 2017-08-28T04:03:44  <sipa> meshcollider: if we do it for one, we must do it for both
 31 2017-08-28T04:03:51  <sipa> the same reasoning applies
 32 2017-08-28T04:04:08  <sipa> except that decoderawtransaction is somewhat less likely to have impact
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 37 2017-08-28T04:51:51  <wallet42> sipa: what bech32hrp do you have in mind for these ?
 38 2017-08-28T04:52:24  <sipa> wallet42: i'm working on searching for a 12-character checksum with much stronger properties
 39 2017-08-28T04:53:01  <wallet42> how did you hack space-time? you have more that 24 hours in a day?
 40 2017-08-28T04:53:43  <sipa> wallet42: by 'working' i mean i have some computers running analysis
 41 2017-08-28T04:54:24  <sipa> where 'some' means 176 cpu cores ;)
 42 2017-08-28T04:54:45  <wallet42> i meant that you have an incredible work pace
 43 2017-08-28T04:54:57  <sipa> heh, thanks :)
 44 2017-08-28T04:59:57  <meshcollider> he's right haha you seem to be working on everything
 45 2017-08-28T05:02:07  <luke-jr> lol
 46 2017-08-28T05:05:56  <wallet42> I was thinking about an easy to implement yet better fee algo for wallet developers. The current situation is bad because many wallets (most that i used) want good user experience and thus chose a fee for them that puts it at the top of the mempool priority queue. If the mempool is bigger than 1 MB, that means they are constantly outcompeting each other.
 47 2017-08-28T05:05:56  <wallet42> My simple fix would be (by default) use an opt-in RBF. Look at the mean feerate (sat/byte) in the mempool. Substract 1 sat/byte. Use that fee. If the user then complaints, offer him to increase fee via RBF after 1 hour no confirmation.
 48 2017-08-28T05:05:56  <wallet42> Now there is a drag down instead of drag up in terms of average/mean feerate.
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 50 2017-08-28T05:09:17  <sipa> wallet42: i don't think average necessarily means anything
 51 2017-08-28T05:09:32  <sipa> anyone can create a near infinite amount of transactions of low fee
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 59 2017-08-28T05:38:22  <bitcoin-git> [bitcoin] AkioNak opened pull request #11173: RPC: Fix currency unit string in the help text (master...use_currency_unit_constant) https://github.com/bitcoin/bitcoin/pull/11173
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 80 2017-08-28T06:34:58  <webuser322> just a reminded, someone please remove https://github.com/bitcoin/bitcoin/pull/10821/commits/6b8d872e5e2dd68a5229ec55f5261dae34ff9bdb so SSE4 optimized SHA256 begins being tested/used by default
 81 2017-08-28T06:36:13  <gmaxwell> webuser322: thanks.
 82 2017-08-28T06:37:56  <webuser322> np, and the segwit settings faq/guide for miners... the things one think first in the morning ;)
 83 2017-08-28T06:40:26  <webuser322> \quit have a good day core!
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 89 2017-08-28T06:53:08  <gmaxwell> mental note: we need release notes on the topup stuff and instructions for rescanning
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 93 2017-08-28T06:58:01  <kallewoof> After seeing a bunch of complaints about fee estimation on Bitcoin Core I decided to do some profiling on how well the estimator is doing. My approach may be off, but it seems to be overshooting by a ton.
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 95 2017-08-28T06:59:41  <kallewoof> Approach: every 100 txs that go into mempool, do an estimateSmartFee for 1..10 blocks for conservative and the same for non-conservative, and store that. For every new block, iterate over all stored estimations and increment blocks waited, and check if the fee per kb for each tx is greater than the lowest 10 fee transactions in the block. If it is, count it as "would have gone into the block".
 96 2017-08-28T07:00:50  <gmaxwell> right now is not a very useful time to look, because the network just spent several days with 50% hashrate gone, and is likely about to spend several days with it gone again.
 97 2017-08-28T07:02:14  <kallewoof> Feels like something that estimator should take into account. Ideally. As long as it's possible for random miner groups to fork off and make random chains the hash rate is going to be very unstable in the foreseeable future. I guess.
 98 2017-08-28T07:06:35  <gmaxwell> as far as your strategy goes, one problem is that blocks frequently contain transactions which have fees far lower than would be accepted for your own txn.
 99 2017-08-28T07:06:46  <gmaxwell> Because the miner is being paid out of band, invisibly to us.
100 2017-08-28T07:06:59  <kallewoof> Is it that common?
101 2017-08-28T07:07:29  <gmaxwell> yes, enough to seriously distort estimates. It really is the case that they're too high now, however... just pointing out the methodology limitations.
102 2017-08-28T07:07:45  <kallewoof> Wow. TIL
103 2017-08-28T07:08:41  <kallewoof> FWIW the results I'm seeing after a couple of blocks, even though it may be of limited value as you pointed out:
104 2017-08-28T07:08:44  <kallewoof> [bench::fees (    conservative)] 1730 ests, 1730 overshoots (403247 more sat/k/tx), 0 undershoots (0 less sat/k/tx), 0 overblocks (0 blocks/tx), 1557 underblocks (5 blocks/tx)
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106 2017-08-28T07:08:46  <kallewoof> [bench::fees (non-conservative)] 1704 ests, 1704 overshoots (84916 more sat/k/tx), 0 undershoots (0 less sat/k/tx), 0 overblocks (0 blocks/tx), 1531 underblocks (4 blocks/tx)
107 2017-08-28T07:09:08  <wallet42> Is there a website to track out-of-band transaction? eg. mined tx that has not been seen by any (or at least all of the watching) nodes before?
108 2017-08-28T07:09:23  <sipa> kallewoof: fee estimation isn't looking at the fees in blocks; it's looking at how long blocks take to confirm
109 2017-08-28T07:09:39  <gmaxwell> wallet42: no, but your debug log will show you them if you have compact block debugging enabled.
110 2017-08-28T07:09:40  <sipa> and given that it aims for (afaik?) 85%, i would indeed expect that in the majority of cases it overshoots
111 2017-08-28T07:10:12  <wallet42> undershoot + rbf!
112 2017-08-28T07:10:46  <kallewoof> sipa: I'm trying to find a way for the (arguably common) case where a user wants their tx to go into the next couple of blocks for a reasonable fee. Lots of people seem to manually pick a fee and lots of others are baffled by the high fees estimated.
113 2017-08-28T07:11:37  <kallewoof> So I do estimateSmartFee(1..10) and then keep that around and see when the estimation actually put me in towards the bottom fo the block. Is my reasoning off on that? Aside from what gmaxwell said about miners being paid off-band.
114 2017-08-28T07:11:48  <gmaxwell> right now if you pick a reasonable fee for 4 blocks based on the mempool it is very likely you will not make it in in 20 blocks... because the hashrate will drop soon, so it may not be as high as you think.
115 2017-08-28T07:12:13  <kallewoof> gmaxwell: if the hashrate is lower than expected, shouldn't the estimator undershoot?
116 2017-08-28T07:12:29  <gmaxwell> kallewoof: it would be better if instead you looked at txn it you mempool and saw when they confirm, rather than looking at the block.
117 2017-08-28T07:12:32  <sipa> kallewoof: right... i'm certainly not saying the current approach is the right one, but trying to see if an estimation algorithm that is designed to overshoot overshoots seems hardly useful :)
118 2017-08-28T07:13:10  <kallewoof> gmaxwell: but i'm trying to profile estimateSmartFee(); doing what you say seems like a great next step though.
119 2017-08-28T07:13:15  <gmaxwell> kallewoof: no, undershooting is quite bad when no rbf is used, the conservative one should hopefully almost never understoot.
120 2017-08-28T07:13:28  <kallewoof> sipa: well, 'overshoot' and 'overshoot by 403247 satoshi/k' are different things, IMO
121 2017-08-28T07:13:35  <gmaxwell> kallewoof: the setting for confirmation targetst is when is quite sure to confirm by, not most likely to.
122 2017-08-28T07:13:49  <sipa> kallewoof: fair
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124 2017-08-28T07:14:54  <gmaxwell> kallewoof: so for example, if you predict that fee X will confirm in 5 blocks, you shouldn't think there was an overshoot unless _ALL_ mempool txn with fee X> confirmed by 5 blocks.
125 2017-08-28T07:15:18  <gmaxwell> (or virtually all, like 95% of them)
126 2017-08-28T07:17:06  <kallewoof> Got it. What I'm seeing now is that txs with "confirm within 5" are going into the next block rather consistently. But this may be because of what you said about the out of band miner payment. Bleh. Maybe I should take the bottom 10 that I also saw in the mempool. I think I can do that.
127 2017-08-28T07:17:48  <gmaxwell> well no, right now it really is overshooting. It just doesn't respond fast enouh for capacity changing 100% in hours.
128 2017-08-28T07:17:58  <kallewoof> Then again, nothing prevents these people from also broadcasting their super-low-fee tx so that approach isn't really ideal either.
129 2017-08-28T07:18:17  <wumpus> gmaxwell: apparently I indeed misconfigured the time machine, now it looks like I bumped 0.14.99 and 0.15.99 in exactly the same second
130 2017-08-28T07:19:43  <kallewoof> gmaxwell: I think there are two incompatible approaches here: (1) I want my tx to confirm with as low a fee as possible; I can wait a bit, but obviously not forever; (2) I want my tx to confirm within the next few blocks; I am willing to pay extra for this. Right now everyone is being lumped into (2) when it seems a lot of people are of mindset (1).
131 2017-08-28T07:19:46  <gmaxwell> kallewoof: you can just look at your mempool, and ask for each fee >=X in the mempool at time t, what percentage of them were confirmed by T+5.  Our conservative estimator is designed to try return a number that makes that figure very high like 95%.
132 2017-08-28T07:20:20  <gmaxwell> trying to get e.g. 1 block however requires looking at the mempool, which is very hard to do safely with an unsupervised approach.
133 2017-08-28T07:20:36  <gmaxwell> (keep in mind we're limited to use approaches which attackers have limited ability to influence)
134 2017-08-28T07:21:00  <kallewoof> Does it not look at mempool for >1 conf case? I didn't see any conditionals about that.
135 2017-08-28T07:21:17  <gmaxwell> e.g. you could look at the mempool right now and see what would get you in... assuming your mempool was current this would work, until there was some softfork or transaction censorship your node didn't know about, and in that case an attacker could make you think 100BTC fees weren't making it in...
136 2017-08-28T07:21:22  <sipa> it only looks at how long mempool txn take to confirm
137 2017-08-28T07:21:41  <sipa> it doesn't look at the composition of the mempool itself, nor the composition of blocks itself
138 2017-08-28T07:21:46  <gmaxwell> unconfirmed txn don't figure into its reasoning because of those influence issues.
139 2017-08-28T07:23:07  <kallewoof> Would a "use mempool to optimize fee" option in the fee estimator make sense? It would only ever lower the fee and it would use the mempool to figure out where approximately to place the fee to get into the bottom 10%.
140 2017-08-28T07:23:43  <kallewoof> Maybe it would require or default-on rbf to give you a way out if it gets stuck..
141 2017-08-28T07:23:58  <wumpus> luke-jr: #7339 seems a mess to me; no one in practice will want to build without libevent support; it will create exactly the same user confusion as #10826  "oh I can build without boost?" except there isn't even the excuse that it will be better in the future
142 2017-08-28T07:24:03  <gmaxwell> Esp if RBF is in use and your mempool is in sync, bidding directly against it is a great approach.  But we haven't figured out how to make it safe (if it's even possible).. though it could be used to only lower the estimates vs the current approach. I think we mostly don't do that now because RBF support is new, and really won't be fully complete until after we've switched the wallet to segwit (
143 2017-08-28T07:24:09  <gmaxwell> because some of the bumping corner cases are not reasonable to solve in the presence of malleability)
144 2017-08-28T07:24:17  <gmaxwell> kallewoof: jinx.
145 2017-08-28T07:24:38  <gmaxwell> kallewoof: yes, I think it would, if it only lowers, and if RBF is in use... and if the bumping is a bit more effective than what we have now.
146 2017-08-28T07:25:18  <gmaxwell> though we may also need to complete mempool sync to get useful enough data shortly after startup. :(  oh well it would still be useful if it wasn't available all the time.
147 2017-08-28T07:25:20  <wumpus> luke-jr: and it does add yet another configuration combination to test
148 2017-08-28T07:25:40  <kallewoof> Okay! Thanks for the feedback. :) I will look into that for sure.
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150 2017-08-28T07:28:15  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/ede386c2193f...6ca15136246c
151 2017-08-28T07:28:15  <bitcoin-git> bitcoin/master 8897b1b MeshCollider: Add meshcollider gitian key
152 2017-08-28T07:28:16  <bitcoin-git> bitcoin/master 6ca1513 Wladimir J. van der Laan: Merge #11153: Add meshcollider Gitian PGP key...
153 2017-08-28T07:28:59  <bitcoin-git> [bitcoin] laanwj closed pull request #11153: Add meshcollider Gitian PGP key (master...201708_add_meshcollider_gpg) https://github.com/bitcoin/bitcoin/pull/11153
154 2017-08-28T07:35:30  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/6ca15136246c...5b8af7b87913
155 2017-08-28T07:35:30  <bitcoin-git> bitcoin/master e254830 Andrew Chow: Make tabs toolbar no longer have a context menu...
156 2017-08-28T07:35:31  <bitcoin-git> bitcoin/master 5b8af7b Wladimir J. van der Laan: Merge #11169: [GUI] Make tabs toolbar no longer have a context menu...
157 2017-08-28T07:36:14  <bitcoin-git> [bitcoin] laanwj closed pull request #11169: [GUI] Make tabs toolbar no longer have a context menu (master...rm-hide-tabs) https://github.com/bitcoin/bitcoin/pull/11169
158 2017-08-28T07:40:40  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/5b8af7b87913...c7229ac36e36
159 2017-08-28T07:40:40  <bitcoin-git> bitcoin/master 82dd719 Wladimir J. van der Laan: rpc: Write authcookie atomically...
160 2017-08-28T07:40:41  <bitcoin-git> bitcoin/master c7229ac Wladimir J. van der Laan: Merge #11131: rpc: Write authcookie atomically...
161 2017-08-28T07:41:19  <bitcoin-git> [bitcoin] laanwj closed pull request #11131: rpc: Write authcookie atomically (master...2017_08_atomic_cookie) https://github.com/bitcoin/bitcoin/pull/11131
162 2017-08-28T07:42:25  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/c7229ac36e36...298251161c7b
163 2017-08-28T07:42:25  <bitcoin-git> bitcoin/master e40fa98 danra: Simplify bswap_16 implementation...
164 2017-08-28T07:42:26  <bitcoin-git> bitcoin/master 2982511 Wladimir J. van der Laan: Merge #11138: Compat: Simplify bswap_16 implementation...
165 2017-08-28T07:43:03  <bitcoin-git> [bitcoin] laanwj closed pull request #11138: Compat: Simplify bswap_16 implementation (master...patch-2) https://github.com/bitcoin/bitcoin/pull/11138
166 2017-08-28T07:44:14  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/298251161c7b...745bbdc189b2
167 2017-08-28T07:44:14  <bitcoin-git> bitcoin/master b426e24 Dan Raviv: Remove redundant explicitly defined copy ctors...
168 2017-08-28T07:44:15  <bitcoin-git> bitcoin/master 745bbdc Wladimir J. van der Laan: Merge #11161: Remove redundant explicitly defined copy ctors...
169 2017-08-28T07:44:54  <bitcoin-git> [bitcoin] laanwj closed pull request #11161: Remove redundant explicitly defined copy ctors (master...fix/redundant-CFeeRate-copy-ctor) https://github.com/bitcoin/bitcoin/pull/11161
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173 2017-08-28T07:55:51  <wumpus> so another rc necessary for 0.15.0?
174 2017-08-28T07:56:37  <gmaxwell> I don't personally think another RC is needed but I think the project uses a higher standard than I do.
175 2017-08-28T07:58:23  <wumpus> if we do it makes sense to tag it today, at least, so it's hopefully gitian-built and I can upload the executables before I leave for SF
176 2017-08-28T07:59:03  <wumpus> if we don't, the same applies for -final I guess
177 2017-08-28T08:00:54  <bitcoin-git> [bitcoin] laanwj pushed 1 new commit to 0.15: https://github.com/bitcoin/bitcoin/commit/0a6af47ffabbeee29fec5b5d71eaff43a08969da
178 2017-08-28T08:00:54  <bitcoin-git> bitcoin/0.15 0a6af47 MarcoFalke: [doc] build-windows: Mention that only trusty works...
179 2017-08-28T08:02:48  <wumpus> if we do nothing right now, we'll be stuck with rc2 for the next two weeks and a rc3 to posssibly be done after that
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181 2017-08-28T08:06:28  <bitcoin-git> [bitcoin] laanwj pushed 3 new commits to master: https://github.com/bitcoin/bitcoin/compare/745bbdc189b2...9c833f471c14
182 2017-08-28T08:06:29  <bitcoin-git> bitcoin/master a54c7b9 Alex Morcos: Fix rounding errors in calculation of minimum change size
183 2017-08-28T08:06:29  <bitcoin-git> bitcoin/master 6af49dd Alex Morcos: Output a bit more information for fee calculation report.
184 2017-08-28T08:06:30  <bitcoin-git> bitcoin/master 9c833f4 Wladimir J. van der Laan: Merge #11145: Fix rounding bug in calculation of minimum change...
185 2017-08-28T08:07:05  <bitcoin-git> [bitcoin] laanwj closed pull request #11145: Fix rounding bug in calculation of minimum change (master...fixrounding) https://github.com/bitcoin/bitcoin/pull/11145
186 2017-08-28T08:07:29  <wumpus> anyhow I"m open to ideas, I'll not be on IRC a lot today and tomorrow (packing etc) but if we want to tag something we need to do it soon
187 2017-08-28T08:08:30  <gmaxwell> well, morcos fix needs to be merged in 0.15 branch. it applied cleanly for me and thats what I was testing on (0.15+it)
188 2017-08-28T08:08:45  <wumpus> yes, but for 0.15.0 or 0.15.1?
189 2017-08-28T08:08:56  <wumpus> obviously it needs to go into some 0.15 release
190 2017-08-28T08:09:03  <sipa> #11145 is a crashing bugfix
191 2017-08-28T08:09:21  <sipa> i think it needs to be in 0.15.0
192 2017-08-28T08:09:47  <wumpus> ok
193 2017-08-28T08:09:59  <wumpus> so merge it into 0.15 and do a rc3 now?
194 2017-08-28T08:10:08  <sipa> sgtm
195 2017-08-28T08:10:19  <gmaxwell> ACK..
196 2017-08-28T08:10:50  <gmaxwell> This will put the release on what day most likely?
197 2017-08-28T08:11:10  <gmaxwell> (asking for my slides, I'm doing a presentation on 0.15 tomorrow)
198 2017-08-28T08:11:10  <wumpus> sept 14/15
199 2017-08-28T08:11:37  <wumpus> given that we don't need to do another rc, of course
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202 2017-08-28T08:13:38  <wumpus> I never expected this to slip so far
203 2017-08-28T08:14:30  <wumpus> let's do 0.15 quickly, they say, we need it soon,...
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205 2017-08-28T08:15:58  <gmaxwell> this slip is due to a regression bug at least, we would have made the announced schedule but for it.
206 2017-08-28T08:16:03  <gmaxwell> so I think thats pretty good.
207 2017-08-28T08:16:48  <wumpus> it's too early to say
208 2017-08-28T08:16:54  <gmaxwell> it's not like sse4 sha2 or something we did at the last minute is biting us, and the change that introduced this bug itself fixed an important issue.
209 2017-08-28T08:17:04  <gmaxwell> well yes, but given what we know now.
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212 2017-08-28T08:18:23  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to 0.15: https://github.com/bitcoin/bitcoin/compare/0a6af47ffabb...5b059a833eb5
213 2017-08-28T08:18:23  <bitcoin-git> bitcoin/0.15 e51bb71 Alex Morcos: Fix rounding errors in calculation of minimum change size...
214 2017-08-28T08:18:24  <bitcoin-git> bitcoin/0.15 5b059a8 Alex Morcos: Output a bit more information for fee calculation report....
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216 2017-08-28T08:19:31  <bitcoin-git> [bitcoin] laanwj pushed 1 new commit to 0.15: https://github.com/bitcoin/bitcoin/commit/e8ad101e5b104ca913beb82a77f5b3bfa1a7c5f6
217 2017-08-28T08:19:32  <bitcoin-git> bitcoin/0.15 e8ad101 Matt Corallo: Changing -txindex requires -reindex, not -reindex-chainstate...
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219 2017-08-28T08:23:32  <bitcoin-git> [bitcoin] laanwj closed pull request #11149: Use prefix instead of postfix increment/decrement for non-trivial typ… (master...prefix-increment) https://github.com/bitcoin/bitcoin/pull/11149
220 2017-08-28T08:29:49  <bitcoin-git> [bitcoin] laanwj pushed 1 new commit to 0.15: https://github.com/bitcoin/bitcoin/commit/29a3cb237802a6f240def54cbc74cb2d5375683a
221 2017-08-28T08:29:49  <bitcoin-git> bitcoin/0.15 29a3cb2 Wladimir J. van der Laan: qt: Translation update pre-rc3...
222 2017-08-28T08:32:03  <wumpus> isn't opening two issues just for release notes items a bit much?
223 2017-08-28T08:33:06  <sipa> wumpus: oh, right
224 2017-08-28T08:33:34  <sipa> sure, i can add things there; just wasn't sure if we'd still look at the existing one
225 2017-08-28T08:33:49  <wumpus> need to reopen it at least
226 2017-08-28T08:34:18  <wumpus> well I'd say posting there will bring it to attention of more people than creating an ew issue
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229 2017-08-28T08:38:17  <wumpus> anyhow  * [new tag]         v0.15.0rc3 -> v0.15.0rc3
230 2017-08-28T08:39:43  <kallewoof> Just to clarify, there's no code that prioritizes transactions based on lifetime anymore, right? I.e. the higher fee from a longer confirmation window is simply based on probability
231 2017-08-28T08:39:52  <kallewoof> Er, lower fee I meant
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233 2017-08-28T08:41:09  <wumpus> yes. Though: the 'priority' code didn't prioritize based on transaction lifetime, but lifetime of the input utxos
234 2017-08-28T08:41:30  <kallewoof> Ah, right, I knew that.
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237 2017-08-28T08:57:11  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/9c833f471c14...df91e11ae1e9
238 2017-08-28T08:57:11  <bitcoin-git> bitcoin/master de9a1db Russell Yanofsky: Acquire cs_main lock before cs_wallet during wallet initialization...
239 2017-08-28T08:57:12  <bitcoin-git> bitcoin/master df91e11 Wladimir J. van der Laan: Merge #11126: Acquire cs_main lock before cs_wallet during wallet initialization...
240 2017-08-28T08:57:51  <bitcoin-git> [bitcoin] laanwj closed pull request #11126: Acquire cs_main lock before cs_wallet during wallet initialization (master...pr/loadlock2) https://github.com/bitcoin/bitcoin/pull/11126
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242 2017-08-28T09:06:01  <bitcoin-git> [bitcoin] laanwj opened pull request #11176: build: Rename --enable-experimental-asm to --enable-asm and enable by default (master...2017_08_non_experimental_asm) https://github.com/bitcoin/bitcoin/pull/11176
243 2017-08-28T09:06:41  <gmaxwell> wumpus: ^ thanks, would have done myself but was busy.
244 2017-08-28T09:07:39  <wumpus> np, I hope I got the build system stuff right
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258 2017-08-28T10:15:12  <bitcoin-git> [bitcoin] laanwj pushed 3 new commits to master: https://github.com/bitcoin/bitcoin/compare/df91e11ae1e9...f088a1bb392e
259 2017-08-28T10:15:13  <bitcoin-git> bitcoin/master 5f850b0 Karl-Johan Alm: [bench] Include ms/blk stats in Connect* benchmarks.
260 2017-08-28T10:15:13  <bitcoin-git> bitcoin/master a473eff Karl-Johan Alm: [bench] Replace 0.00(000)1 with MICRO/MILLI #defines in validation.cpp.
261 2017-08-28T10:15:14  <bitcoin-git> bitcoin/master f088a1b Wladimir J. van der Laan: Merge #10303: [bench] Include ms/blk stats in Connect* benchmarks....
262 2017-08-28T10:15:27  <bitcoin-git> [bitcoin] laanwj closed pull request #10303: [bench] Include ms/blk stats in Connect* benchmarks. (master...bench-add-per-block-stats) https://github.com/bitcoin/bitcoin/pull/10303
263 2017-08-28T10:18:11  <bitcoin-git> [bitcoin] rawodb opened pull request #11177: Support for SegWit Addresses in RPC  calls (master...pr/rpc_getsegwitaddresses) https://github.com/bitcoin/bitcoin/pull/11177
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269 2017-08-28T10:43:10  <kallewoof> Accidentally posted in #bitcoin-dev instead of here, but I got some initial mempool optimizing code for fee estimation in place that looks promising. Will check back when I have more profiling done.
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271 2017-08-28T10:45:02  <kallewoof> Avg 2953 sat/k/tx overshoot seems useful for sure, compared to 370542 (conservative) or 116949 (non-conservative).
272 2017-08-28T11:01:13  <bitcoin-git> [bitcoin] MeshCollider opened pull request #11178: Add iswitness parameter to decode- and fundrawtransaction RPCs (master...201708_rawtx_bool) https://github.com/bitcoin/bitcoin/pull/11178
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278 2017-08-28T11:52:10  <instagibbs> kallewoof, is this for mempool-based sniping?
279 2017-08-28T11:55:04  <kallewoof> instagibbs: not sure what you mean by sniping, but it uses mempool to optimize fees
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281 2017-08-28T12:26:46  <bitcoin-git> [bitcoin] laanwj opened pull request #11179: rpc: Push down safe mode checks (master...2017_08_safemode_pushdown) https://github.com/bitcoin/bitcoin/pull/11179
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293 2017-08-28T14:00:38  <fanquake> wumpus will you be uploading the sigs for the signed build shortly?
294 2017-08-28T14:15:21  <bitcoin-git> [bitcoin] laanwj closed pull request #11172: Fixed a grammar issue. (master...patch-1) https://github.com/bitcoin/bitcoin/pull/11172
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296 2017-08-28T14:40:45  <kallewoof> wumpus: I may be mixing things up, but was this not changed in a recent merge (or was it a not-merged-yet PR?): "SHA256 hashing has been optimized for architectures supporting SSE 4 (See PR 10182). SHA256 is around 50% faster on supported hardware, which results in around 5% faster IBD and block validation. In version 0.15, SHA256 hardware optimization is disabled in release builds by default, but
297 2017-08-28T14:40:46  <kallewoof> can be enabled by using --enable-experimental-asm when building.
298 2017-08-28T14:40:54  <kallewoof> " (from release notes in 0.15)
299 2017-08-28T14:41:36  <kallewoof> Oh it's a few lines up. I'll add a note to that PR about the release notes in case it's meant for 0.15
300 2017-08-28T14:42:44  <wumpus> fanquake: I can't do that
301 2017-08-28T14:43:41  <wumpus> kallewoof: that release note is correct for 0.15
302 2017-08-28T14:43:49  <wumpus> after 0.15 we'll enable the asm by default
303 2017-08-28T14:44:22  <promag> wumpus: will you submit a patch to add the runtime flag?
304 2017-08-28T14:44:27  <kallewoof> Gotcha
305 2017-08-28T14:44:30  <wumpus> what runtime flag?
306 2017-08-28T14:44:51  <promag> to enable/disable sha256 asm
307 2017-08-28T14:45:03  <wumpus> oh no, I'm not going to do that
308 2017-08-28T14:45:30  <promag> but do you think is really useful?
309 2017-08-28T14:45:46  <wumpus> no, it wouldn't be useful for me, my point was that *if* user switching of the sha256 method should be possible it should be at run time
310 2017-08-28T14:46:38  <promag> ok, agree
311 2017-08-28T14:46:58  <kallewoof> "This can be useful if running a pruned node, since loading a wallet where the most recent sync is beyond the pruned height results in having to download and revalidate the whole blockchain." << Really? Not just the blocks starting at the wallet's last sync point?
312 2017-08-28T14:47:02  <wumpus> when there are a lot of different ones it might be useful to be able to switch for benchmarking, on the other hand 'bench_bitcoin' should likely just test them al
313 2017-08-28T14:47:11  <wumpus> no need for user involvement
314 2017-08-28T14:47:15  <kallewoof> (^ for multi wallets in QT being synced even tho only one is shown)
315 2017-08-28T14:49:07  <wumpus> kallewoof: I think 'beyond' is confusing there, isn't 'before' meant?
316 2017-08-28T14:49:09  <promag> wumpus: I thought the same regarding benchmarking
317 2017-08-28T14:49:59  <wumpus> kallewoof: if the block at time of the last sync of a wallet was pruned, it re-fetches everything
318 2017-08-28T14:50:25  <kallewoof> Maybe English is failing me. It sounds to me like it has to redownload everything from genesis if a wallet happens to not have been synced for the last (blocks remaining afte pruning) + 1 blocks.
319 2017-08-28T14:50:39  <wumpus> that's what it does, yes
320 2017-08-28T14:50:52  <kallewoof> Oh... kay.
321 2017-08-28T14:50:58  <wumpus> it would be possible to download only a subset of the blocks, but that never happens
322 2017-08-28T14:51:14  <kallewoof> Maybe wallet.dat files should have an age :)
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327 2017-08-28T14:56:06  <kallewoof> Btw I've been meaning to mention this. Kalle Alm = Karl-Johan Alm for the release notes. Didn't feel important enough to bring up but I saw someone make a PR to fix names before.
328 2017-08-28T14:56:52  <wumpus> feel free to submit a PR to fix it
329 2017-08-28T14:59:14  <kallewoof> Sure thing. Since someone was doing it for a group of people I was sort of wondering if there was a place where this was written down.
330 2017-08-28T14:59:42  <wumpus> there was an editing phase on the wiki, but now it's been merged back to the branch
331 2017-08-28T15:01:31  <bitcoin-git> [bitcoin] kallewoof opened pull request #11180: [release-notes.md] Remove alias (0.15...patch-1) https://github.com/bitcoin/bitcoin/pull/11180
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334 2017-08-28T15:05:52  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to 0.15: https://github.com/bitcoin/bitcoin/compare/29a3cb237802...48790e0efaf4
335 2017-08-28T15:05:52  <bitcoin-git> bitcoin/0.15 a461cf4 kallewoof: Update release-notes.md
336 2017-08-28T15:05:53  <bitcoin-git> bitcoin/0.15 48790e0 Wladimir J. van der Laan: Merge #11180: [release-notes.md] Remove alias...
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348 2017-08-28T15:58:08  <bitcoin-git> [bitcoin] laanwj pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/f088a1bb392e...cee4fe1d53b2
349 2017-08-28T15:58:08  <bitcoin-git> bitcoin/master eefc2f3 danra: Move local include to before system includes...
350 2017-08-28T15:58:09  <bitcoin-git> bitcoin/master cee4fe1 Wladimir J. van der Laan: Merge #11144: Move local include to before system includes...
351 2017-08-28T15:58:48  <bitcoin-git> [bitcoin] laanwj closed pull request #11144: Move local include to before system includes (master...patch-6) https://github.com/bitcoin/bitcoin/pull/11144
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358 2017-08-28T16:12:41  <sc> hi there!
359 2017-08-28T16:12:47  *** sc is now known as Guest89941
360 2017-08-28T16:13:43  <Guest89941> Does anyone know how to keep mining reward constant in regtest for quite a long period of time? It halves very fast for my purposes
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369 2017-08-28T16:44:20  <MarcoFalke> s_c: https://github.com/bitcoin/bitcoin/pull/8623/files#diff-64cbe1ad5465e13bc59ee8bb6f3de2e7R243
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371 2017-08-28T16:45:51  <s_c> MarcoFalke, thank you!
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385 2017-08-28T17:22:02  <luke-jr> wumpus: I see your point
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403 2017-08-28T18:20:20  <bitcoin-git> [bitcoin] jnewbery opened pull request #11182: [tests] Add P2P interface to TestNode (master...test_node_p2p) https://github.com/bitcoin/bitcoin/pull/11182
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416 2017-08-28T19:09:57  <wall__> Hello
417 2017-08-28T19:10:08  <wall__> How to get bitcoin wallet ?
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419 2017-08-28T19:11:41  <sipa> wall__: #bitcoin, and https://bitcoin.org/en/getting-started
420 2017-08-28T19:13:46  <wall__> Sipa : i still confussed   with sofware this
421 2017-08-28T19:14:07  <wall__> Can you help me
422 2017-08-28T19:15:09  <sipa> wall__: off topic here, this is a development channel. use #bitcoin
423 2017-08-28T19:16:04  <wall__> Oh ok
424 2017-08-28T19:17:05  <wall__> How to see log in bitcoin core
425 2017-08-28T19:17:29  <sipa> #bitcoin
426 2017-08-28T19:18:37  <wall__> Ok thx
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438 2017-08-28T19:54:02  <bitcoin-git> [bitcoin] rawodb closed pull request #11170: Add label support to "addwitnessaddress" (master...pr/rpc_addwitnessaddress) https://github.com/bitcoin/bitcoin/pull/11170
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462 2017-08-28T20:30:48  <cfields> gitian builders: v0.15.0rc3 detached sigs are pushed
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467 2017-08-28T20:57:19  <bitcoin-git> [bitcoin] MarcoFalke pushed 7 new commits to master: https://github.com/bitcoin/bitcoin/compare/cee4fe1d53b2...60dd9cc47058
468 2017-08-28T20:57:20  <bitcoin-git> bitcoin/master 25cd520 practicalswift: Use sys.exit(...) instead of exit(...): exit(...) should not be used in programs
469 2017-08-28T20:57:20  <bitcoin-git> bitcoin/master 51cb6b8 practicalswift: Use print(...) instead of undefined printf(...)
470 2017-08-28T20:57:21  <bitcoin-git> bitcoin/master 9b94054 practicalswift: Avoid reference to undefined name: stderr does not exist, sys.stderr does
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472 2017-08-28T20:57:44  <bitcoin-git> [bitcoin] MarcoFalke closed pull request #10781: Python cleanups (master...python-cleanups) https://github.com/bitcoin/bitcoin/pull/10781
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484 2017-08-28T21:30:02  <maaku> I added a new opcode to script/interpreter.cpp that uses data serialization, and on 0.15 (but not prior) I get a compilation error because memory_cleanse can't be found when linking bitcoinconsensus. Is it intentional that this support function is excluded from libbitcoinconsensus?
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487 2017-08-28T21:33:24  <sipa> maaku: i don't see why it should be excluded from libbitcoinconsensus
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493 2017-08-28T21:50:01  <maaku> sipa: hrm. that would require linking against ssl
494 2017-08-28T21:50:45  <sipa> maaku: ugh, we need to replace that function with something non-openssl then
495 2017-08-28T21:50:54  <sipa> the openssl implementation is braindead anyway
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508 2017-08-28T23:07:42  <bitcoin-git> [bitcoin] dooglus opened pull request #11184: Use IsMine() to check whether we own the custom change address... (0.15...change_ismine_0.15) https://github.com/bitcoin/bitcoin/pull/11184
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511 2017-08-28T23:13:35  <luke-jr> sipa: any particular reason you left off BIP 143 on https://github.com/bitcoin/bips/pull/579 ?
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516 2017-08-28T23:26:35  <meshcollider> With BIP 143 I did also check the spelling of CODESEPARATOR was consistent with script.cpp btw, in case that was the issue
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521 2017-08-28T23:49:24  <bitcoin-git> [bitcoin] MarcoFalke pushed 2 new commits to master: https://github.com/bitcoin/bitcoin/compare/60dd9cc47058...91e49c51f1ae
522 2017-08-28T23:49:24  <bitcoin-git> bitcoin/master 6d2d2eb Jorge Timón: RPC: gettxout: Slightly improve doc and tests
523 2017-08-28T23:49:25  <bitcoin-git> bitcoin/master 91e49c5 MarcoFalke: Merge #10859: RPC: gettxout: Slightly improve doc and tests...
524 2017-08-28T23:49:47  <bitcoin-git> [bitcoin] MarcoFalke closed pull request #10859: RPC: gettxout: Slightly improve doc and tests (master...b15-rpc-gettxout-mempool) https://github.com/bitcoin/bitcoin/pull/10859
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