Wladimir J. van der Laan a6926b065d Merge #12048: Use best-fit strategy in Arena, now O(log(n)) instead O(n) ... 5fbf7c4 fix nits: variable naming, typos (Martin Ankerl) 1e0ee90 Use best-fit strategy in Arena, now O(log(n)) instead O(n) (Martin Ankerl) Pull request description: This replaces the first-fit algorithm used in the Arena with a best-fit. According to "Dynamic Storage Allocation: A Survey and Critical Review", Wilson et. al. 1995, http://www.scs.stanford.edu/14wi-cs140/sched/readings/wilson.pdf, both startegies work well in practice. The advantage of using best-fit is that we can switch the O(n) allocation to O(log(n)). Additionally, some previously O(log(n)) operations are now O(1) operations by using hash maps. The end effect is that the benchmark runs about 2.5 times faster on my machine: # Benchmark, evals, iterations, total, min, max, median old: BenchLockedPool, 5, 530, 5.25749, 0.00196938, 0.00199755, 0.00198172 new: BenchLockedPool, 5, 1300, 5.11313, 0.000781493, 0.000793314, 0.00078606 I've run all unit tests and benchmarks, and increased the number of iterations so that BenchLockedPool takes about 5 seconds again. Tree-SHA512: 6551e384671f93f10c60df530a29a1954bd265cc305411f665a8756525e5afe2873a8032c797d00b6e8c07e16d9827465d0b662875433147381474a44119ccce		2018-03-22 14:28:37 +01:00
..
bench	Merge #12048: Use best-fit strategy in Arena, now O(log(n)) instead O(n)	2018-03-22 14:28:37 +01:00
compat	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
config
consensus	Fix typos	2018-03-21 10:54:17 +01:00
crypto	Consensus: Fix bug when compiler do not support __builtin_clz*	2018-03-01 17:20:27 +08:00
leveldb	Bump leveldb subtree	2018-02-16 08:59:28 -05:00
obj
obj-test
policy	Fix typos	2018-03-21 10:54:17 +01:00
primitives	Merge #10498: Use static_cast instead of C-style casts for non-fundamental types	2018-02-07 16:15:28 -05:00
qt	Merge #12723: Qt5: Warning users about invalid-BIP21 URI bitcoin://	2018-03-21 16:57:27 +01:00
rpc	Remove unnecessary NONNEGATIVE_SIGNED	2018-03-20 13:07:17 -04:00
script	Fix typos	2018-03-21 08:34:44 +02:00
secp256k1	Bump secp256k1 subtree	2017-09-29 16:02:39 +02:00
support	Merge #12048: Use best-fit strategy in Arena, now O(log(n)) instead O(n)	2018-03-22 14:28:37 +01:00
test	Merge #12704: base58: use map instead of strchr() when decode	2018-03-22 10:00:10 +01:00
univalue	univalue: Bump subtree	2018-02-10 09:55:54 -05:00
wallet	Merge #12747: Fix typos	2018-03-21 18:04:04 -04:00
zmq	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
.clang-format	Merge #10193: scripted-diff: Remove #include <boost/foreach.hpp>	2017-07-04 18:05:18 +02:00
addrdb.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
addrdb.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
addrman.cpp	net: Correct addrman logging	2018-03-06 21:52:53 +01:00
addrman.h	Fix typos	2018-03-21 10:54:17 +01:00
amount.h	Consensus: Policy: MOVEONLY: Move CFeeRate out of the consensus module	2017-05-03 18:00:13 +02:00
arith_uint256.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
arith_uint256.h	[arith_uint256] Avoid unnecessary this-copy using prefix operator	2018-02-28 19:59:19 +09:00
base58.cpp	use base58 map instead of strchr()	2018-03-21 11:57:57 +08:00
base58.h	Split key_io (address/key encodings) off from base58	2018-02-19 18:55:21 -08:00
bech32.cpp	scripted-diff: Replace #include "" with #include <> (ryanofsky)	2017-11-16 08:23:01 +13:00
bech32.h	Import Bech32 C++ reference code & tests	2017-09-28 16:02:16 -07:00
bitcoin-cli-res.rc
bitcoin-cli.cpp	bitcoin-cli: Provide a better error message when bitcoind is not running	2018-03-09 14:55:44 +01:00
bitcoin-tx-res.rc
bitcoin-tx.cpp	Merge #10694: Remove redundant code in MutateTxSign(CMutableTransaction&, const std::string&)	2018-03-13 16:59:50 +01:00
bitcoind-res.rc
bitcoind.cpp	Move scheduler/threadGroup into common-init instead of per-app	2018-01-25 11:35:34 -05:00
blockencodings.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
blockencodings.h	Support deserializing into temporaries	2018-03-13 17:04:31 -07:00
bloom.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
bloom.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
chain.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
chain.h	Add static_assert to prevent VARINT(<signed value>)	2018-03-15 18:57:55 -05:00
chainparams.cpp	Disable wallet fallbackfee by default on mainnet	2018-02-25 09:33:46 +08:00
chainparams.h	Disable wallet fallbackfee by default on mainnet	2018-02-25 09:33:46 +08:00
chainparamsbase.cpp	Refactor: One CBaseChainParams should be enough	2018-02-08 22:06:43 +01:00
chainparamsbase.h	Refactor: One CBaseChainParams should be enough	2018-02-08 22:06:43 +01:00
chainparamsseeds.h	Fix a-vs-an typos	2018-02-11 10:48:15 +01:00
checkpoints.cpp	Add LookupBlockIndex function	2018-03-06 19:52:19 +00:00
checkpoints.h	Add LookupBlockIndex function	2018-03-06 19:52:19 +00:00
checkqueue.h	[Refactor] Remove unused fQuit var from checkqueue.h	2018-01-07 20:44:21 +00:00
clientversion.cpp	Merge #11966: clientversion: Use full commit hash for commit-based version descriptions	2018-02-13 10:58:41 +01:00
clientversion.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
coins.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
coins.h	Support deserializing into temporaries	2018-03-13 17:04:31 -07:00
compat.h	Add new prevector benchmarks.	2018-02-27 11:42:06 -08:00
compressor.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
compressor.h	Support deserializing into temporaries	2018-03-13 17:04:31 -07:00
core_io.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
core_memusage.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
core_read.cpp	Merge #10498: Use static_cast instead of C-style casts for non-fundamental types	2018-02-07 16:15:28 -05:00
core_write.cpp	Fix typos	2018-03-21 08:34:44 +02:00
cuckoocache.h	Fix typos	2018-03-21 08:34:44 +02:00
dbwrapper.cpp	Log fatal LevelDB errors more verbosely	2018-03-09 22:51:10 -08:00
dbwrapper.h	Add DynamicMemoryUsage() to LevelDB	2018-03-06 00:25:39 -05:00
fs.cpp	scripted-diff: Replace #include "" with #include <> (ryanofsky)	2017-11-16 08:23:01 +13:00
fs.h	[Trivial] Add BITCOIN_FS_H endif footer in fs.h	2017-05-19 02:01:28 -07:00
hash.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
hash.h	Support deserializing into temporaries	2018-03-13 17:04:31 -07:00
httprpc.cpp	Split key_io (address/key encodings) off from base58	2018-02-19 18:55:21 -08:00
httprpc.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
httpserver.cpp	Merge #12366: http: Join worker threads before deleting work queue	2018-02-08 09:21:49 +01:00
httpserver.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
indirectmap.h
init.cpp	Merge #11041: Add LookupBlockIndex	2018-03-13 19:12:35 +01:00
init.h	Move scheduler/threadGroup into common-init instead of per-app	2018-01-25 11:35:34 -05:00
key.cpp	Merge #9598: Improve readability by removing redundant casts to same type (on all platforms)	2018-03-07 17:47:46 +01:00
key.h	Make CKey::Load references const	2018-01-23 13:16:56 -05:00
key_io.cpp	Simplify Base32 and Base64 conversions	2018-03-07 07:04:07 -08:00
key_io.h	Split key_io (address/key encodings) off from base58	2018-02-19 18:55:21 -08:00
keystore.cpp	Merge #11403: SegWit wallet support	2018-01-10 20:55:41 -10:00
keystore.h	Merge #11403: SegWit wallet support	2018-01-10 20:55:41 -10:00
limitedmap.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
Makefile.am	Implement Branch and Bound coin selection in a new file	2018-03-13 12:39:17 -04:00
Makefile.bench.include	Add new prevector benchmarks.	2018-02-27 11:42:06 -08:00
Makefile.leveldb.include	build: verify that the assembler can handle crc32 functions	2017-07-13 12:49:05 -04:00
Makefile.qt.include	Merge #11621: [build] Add temp_bitcoin_locale_qrc to CLEAN_QT to fix make distcheck	2017-11-17 14:04:02 +01:00
Makefile.qttest.include	Remove redundant testutil files	2017-09-05 15:02:17 +12:00
Makefile.test.include	Add tests for the Branch and Bound algorithm	2018-03-13 12:39:26 -04:00
memusage.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
merkleblock.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
merkleblock.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
miner.cpp	Remove unused variable in SortForBlock	2018-03-14 23:10:39 -07:00
miner.h	Remove unused variable in SortForBlock	2018-03-14 23:10:39 -07:00
net.cpp	Merge #12716: Fix typos and cleanup in various files	2018-03-21 11:17:43 -04:00
net.h	Polish interfaces around PeerLogicValidation	2018-03-14 10:11:01 +01:00
net_processing.cpp	Fix typos	2018-03-21 08:34:44 +02:00
net_processing.h	Polish interfaces around PeerLogicValidation	2018-03-14 10:11:01 +01:00
netaddress.cpp	Merge #10498: Use static_cast instead of C-style casts for non-fundamental types	2018-02-07 16:15:28 -05:00
netaddress.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
netbase.cpp	Remove redundant checks for MSG_* from configure.ac	2018-03-15 20:02:00 +01:00
netbase.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
netmessagemaker.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
noui.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
noui.h
pow.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
pow.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
prevector.h	Use memset() to optimize prevector::resize()	2018-02-27 13:27:51 -08:00
protocol.cpp	Add setter for g_initial_block_download_completed	2018-02-17 21:28:50 +11:00
protocol.h	Add setter for g_initial_block_download_completed	2018-02-17 21:28:50 +11:00
pubkey.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
pubkey.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
random.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
random.h	Fix typos	2018-03-21 08:34:44 +02:00
rest.cpp	Add LookupBlockIndex function	2018-03-06 19:52:19 +00:00
reverse_iterator.h	Declare single-argument (non-converting) constructors "explicit"	2017-08-16 16:33:25 +02:00
reverselock.h
scheduler.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
scheduler.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
serialize.h	Add static_assert to prevent VARINT(<signed value>)	2018-03-15 18:57:55 -05:00
streams.h	Support deserializing into temporaries	2018-03-13 17:04:31 -07:00
sync.cpp	Fix typos	2018-01-28 13:21:25 +01:00
sync.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
threadinterrupt.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
threadinterrupt.h
threadsafety.h
timedata.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
timedata.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
tinyformat.h	Fix typos	2018-03-21 08:34:44 +02:00
torcontrol.cpp	boost: drop boost threads from torcontrol	2018-02-08 14:35:29 -05:00
torcontrol.h	boost: drop boost threads from torcontrol	2018-02-08 14:35:29 -05:00
txdb.cpp	Add static_assert to prevent VARINT(<signed value>)	2018-03-15 18:57:55 -05:00
txdb.h	Merge #10498: Use static_cast instead of C-style casts for non-fundamental types	2018-02-07 16:15:28 -05:00
txmempool.cpp	Remove unused mempool index	2018-01-09 08:59:21 -05:00
txmempool.h	Fix typos	2018-03-21 08:34:44 +02:00
ui_interface.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
ui_interface.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
uint256.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
uint256.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
undo.h	Merge #12716: Fix typos and cleanup in various files	2018-03-21 11:17:43 -04:00
util.cpp	Replace boost::call_once with std::call_once	2018-03-21 20:02:45 +00:00
util.h	Fix typos	2018-03-21 08:34:44 +02:00
utilmoneystr.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
utilmoneystr.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
utilstrencodings.cpp	Simplify Base32 and Base64 conversions	2018-03-07 07:04:07 -08:00
utilstrencodings.h	Generalize ConvertBits	2018-03-06 20:28:08 -08:00
utiltime.cpp	Format timestamps using ISO 8601 formatting (e.g. "2018-02-28T12:34:56Z")	2018-03-09 15:02:01 +01:00
utiltime.h	Format timestamps using ISO 8601 formatting (e.g. "2018-02-28T12:34:56Z")	2018-03-09 15:02:01 +01:00
validation.cpp	Fix typos	2018-03-21 08:34:44 +02:00
validation.h	Add LookupBlockIndex function	2018-03-06 19:52:19 +00:00
validationinterface.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
validationinterface.h	Polish interfaces around PeerLogicValidation	2018-03-14 10:11:01 +01:00
version.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
versionbits.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
versionbits.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
warnings.cpp	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00
warnings.h	Increment MIT Licence copyright header year on files modified in 2017	2018-01-03 02:26:56 +09:00