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[Wallet] IsEquivalentTo commented, removing an extra round of ser+hash calculation. #1231

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merged 1 commit into from Jan 2, 2020

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@furszy furszy commented Dec 28, 2019

To explain the reason that forced me to hunt this for over a week..

In huge wallets (+100k txs wallets) the 4.0 startup time is taking +30 minutes. Which is crazy long and sounded much more as a regression over 3.4 which was taking less than 10 minutes.

Root cause:

After some time (and improvements over different areas #1217), found that the IsEquivalentTo method is adding an extra round of serialization + hash calculation on every transaction that is loaded into the wallet. Which gets really, time-wise, expensive in big wallets for a small benefit.

Test:

Environment:

  • Wallet with 419,633 db records.
  • MacOS i7, 16gb ram.

Pre-PR transactions load time:

30 minutes and i got bored and killed the process..

Post-PR transactions load time:

34.369 seconds.

For now, decided to just comment it to be able to release 4.0.1 as soon as possible with all of the improvements.

The final, future, goal of course it's not this one, we need to backport the whole loadToWallet flow from upstream + introduce our own changes there.

Just a first initial step solving the regression.

…f serialization + hash calculation in every read transaction in the wallet startup.
@furszy furszy self-assigned this Dec 28, 2019
@random-zebra random-zebra added this to the 4.0.1 milestone Dec 29, 2019
@Fuzzbawls
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Wallet load times for one of my testnet wallets, which contains ~3600 various zPIV transactions:

current master branch:

Wallet completed loading in         2034024ms

this pr:

Wallet completed loading in           49724ms

That is quite the difference.

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ACK 24fb46d

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ACK 24fb46d and merging...

random-zebra added a commit that referenced this pull request Jan 2, 2020
…nd of ser+hash calculation.

24fb46d [Wallet] IsEquivalentTo commented for now to not add an extra round of serialization + hash calculation in every read transaction in the wallet startup. (furszy)

Pull request description:

  To explain the reason that forced me to hunt this for over a week..

  In huge wallets (+100k txs wallets) the 4.0 startup time is taking +30 minutes. Which is crazy long and sounded much more as a regression over 3.4 which was taking less than 10 minutes.

  Root cause:

  After some time (and improvements over different areas #1217), found that the `IsEquivalentTo` method is adding an extra round of serialization + hash calculation on every transaction that is loaded into the wallet. Which gets really, time-wise, expensive in big wallets for a small benefit.

  Test:

  Environment:
  - Wallet with 419,633 db records.
  - MacOS i7, 16gb ram.

  Pre-PR transactions load time:

  30 minutes and i got bored and killed the process..

  Post-PR transactions load time:

  34.369 seconds.

  For now, decided to just comment it to be able to release 4.0.1 as soon as possible with all of the improvements.

  The final, future, goal of course it's not this one, we need to backport the whole `loadToWallet` flow from upstream + introduce our own changes there.

  Just a first initial step solving the regression.

ACKs for top commit:
  Fuzzbawls:
    ACK 24fb46d
  random-zebra:
    ACK 24fb46d and merging...

Tree-SHA512: bd4b7b34b60eabf9ebe555312bbb26373430057bff07d1ee1d0bc137004dd47bfbf3d263e146113e347b3a767b4e01376fdf3b2984abd4b321d188ac91cfa391
@random-zebra random-zebra merged commit 24fb46d into PIVX-Project:master Jan 2, 2020
Fuzzbawls pushed a commit to Fuzzbawls/PIVX that referenced this pull request Jan 11, 2020
…f serialization + hash calculation in every read transaction in the wallet startup.

Github-Pull: PIVX-Project#1231
Rebased-From: 24fb46d
Fuzzbawls added a commit that referenced this pull request Jan 12, 2020
d209897 [RPC] Notate all account stuff as deprecated (Fuzzbawls)
10bbf9e [Qt] Initialize isLoading to false for CS view (Fuzzbawls)
b7c63b8 [Trivial] Set log2_work decimals to 16 in the logs Github-Pull: #1252 Rebased-From: d83e67c (random-zebra)
a80e2e9 [RPC] Fix getstakingstatus removing compile-time conditional (random-zebra)
876d393 [Wallet][Cleanup][GUI] minor updates to staking status (random-zebra)
f9f437a [Wallet] CStakerStatus: save a pointer to the tip instead of the hash Github-Pull: #1245 Rebased-From: 968d861 (random-zebra)
f9022cf [GUI] Refactor updateStakingStatus and set it to inactive after locking (random-zebra)
cd6f6cb [Trivial] Fix lastHashTime type in miner Github-Pull: #1245 Rebased-From: d2aebc5 (random-zebra)
6845d18 [RPC] Add CStakerStatus data to getstakingstatus Github-Pull: #1245 Rebased-From: b8ed76f (random-zebra)
b63d963 [PoS] Lock cs_main when getting chainActive data in miner Github-Pull: #1245 Rebased-From: d2d5f08 (random-zebra)
6fac9b9 [Cleanup] Remove unused variables in miner (random-zebra)
7128945 [Core][PoS] Replace mapHashedBlocks and nLastCoinStakeSearchInterval (random-zebra)
c546ac1 [Cleanup][Wallet] Remove unused nSearchInterval field in CreateCoinStake Github-Pull: #1245 Rebased-From: 6b2b813 (random-zebra)
5dbda15 [GUI] Every masternode action checking for tier two network synced. (furszy)
499dac8 [Trivial][RPC] Fix example line in importprivkey help (missing arg) Github-Pull: #1242 Rebased-From: ce93872 (random-zebra)
4133401 [Tests] Add wallet_import_stakingaddress to test runner (random-zebra)
8ac5cbb [Tests] Add functional test for import staking address/key Github-Pull: #1242 Rebased-From: d1ebf2e (random-zebra)
bb9426a [RPC] Add coldstaking address support in importaddress Github-Pull: #1242 Rebased-From: 3bd5579 (random-zebra)
3084143 [RPC] Add coldstaking address support in importprivkey Github-Pull: #1242 Rebased-From: 144ec35 (random-zebra)
bb021af [Model][Wallet][Performance] TxRecord updateStatus not accepted stake status fix + performance improvements. (furszy)
1f0823f [GUI][Model] Start missing masternodes flow implemented. (furszy)
90639d1 [GUI] Masternodes start all flow implemented. (furszy)
14f3220 [Core] Don't log missing MNs during CBudgetProposal::CleanAndRemove (random-zebra)
7e1b908 [GUI] Translator class abstracted to be able to reuse the ProcessSendCoinsReturn method in the masternodeswizard class. (furszy)
fa73ae3 [GUI] Masternode creation wizard, creation fail event properly detailing the failure cause in the subsequent error dialog. (furszy)
447265f [Wallet] Graceful shutdown in the unlock corrupted wallet,  showing the proper error message in screen. (furszy)
81cbe1d [Cleanup][Tests] Remove precompute option in default framework node conf Github-Pull: #1237 Rebased-From: 51cbb00 (random-zebra)
ded2cc2 [Cleanup] remove fPrecompute option in SelectStakeCoins (random-zebra)
391c9e6 [Cleanup][Tests] Remove crazy useful unittest created by "Tom" Github-Pull: #1237 Rebased-From: 0187f0d (random-zebra)
67411b5 [Cleanup][Wallet] Remove zpiv spend cache from zpiv tracker Github-Pull: #1237 Rebased-From: 29a934c (random-zebra)
7084840 [Cleanup][DB] Remove DB functions for zerocoin precomputing Github-Pull: #1237 Rebased-From: bd3eebb (random-zebra)
1e93feb [Cleanup] Remove zPIV precomputing global variables. Github-Pull: #1237 Rebased-From: 837f4e2 (random-zebra)
4de0dec [Cleanup][Qt] remove COLUMN_PRECOMPUTE from zpivcontroldialog Github-Pull: #1237 Rebased-From: 520284e (random-zebra)
3394078 [Cleanup] Init: remove precompute-related helps in strUsage Github-Pull: #1237 Rebased-From: 2585532 (random-zebra)
7d03510 [Cleanup] Init: remove "precompute" debug category (not used anywhere) Github-Pull: #1237 Rebased-From: fbcf37b (random-zebra)
9ea6aa2 [Tests][BUG] Fix RPC_TRANSACTION_REJECTED in mining_pos_reorg Github-Pull: #1218 Rebased-From: 1fb9dd3 (random-zebra)
44c60dc [Tests] sort exported mints by denom in zc_spends and zc_wrapped_serials (random-zebra)
0538d25 [Tests] Speed up cache generation (random-zebra)
3abe8a8 [Travis][Tests] Add travis ping during create_cache Github-Pull: #1218 Rebased-From: 6a2a3b9 (random-zebra)
e6080f4 [RPC][BUG] Remove extra lock in spendrawzerocoin Github-Pull: #1218 Rebased-From: 35ea5bc (random-zebra)
88ddf09 [Tests][Trivial] remove stale zerocoin_publicSpend_reorg (random-zebra)
5c70582 [Tests] Fix and re-enable wrapping serials test Github-Pull: #1218 Rebased-From: 039c220 (random-zebra)
fc7069a [RPC] Enable v2 spending on regtest with spendrawzerocoin Github-Pull: #1218 Rebased-From: ddf18d9 (random-zebra)
5a3951a [Tests] Sort test_runner list by execution time (and comment it there) Github-Pull: #1218 Rebased-From: b3af5bd (random-zebra)
248adc5 [Tests] Fix edge case for double spends in zerocoin_spends.py (random-zebra)
66f3cb1 [Tests] Remove zpiv tests from fakestake (random-zebra)
11bc853 [Trivial] Rename base test class in p2p_time_offset functional test Github-Pull: #1218 Rebased-From: cb54381 (random-zebra)
8a25781 [Tests] Refactor POS reorg test (random-zebra)
ddc6b8a [Tests] Prefix "_pos_" tests with "_mining_" Github-Pull: #1218 Rebased-From: 384c636 (random-zebra)
97da652 [Tests] Fix wallet_reorg-stake functional test Github-Pull: #1218 Rebased-From: 8949e38 (random-zebra)
807b4ab [Consensus] Fix fake-stake spent serials detection on forked chains Github-Pull: #1218 Rebased-From: 0417f66 (random-zebra)
24bee71 [Tests] Unify and complete FakeStake test suite in a single testcase. Github-Pull: #1218 Rebased-From: d2c1ef2 (random-zebra)
0dc9e17 [Tests] Refactor PIVX tools in test_framework, blocktools and utils Github-Pull: #1218 Rebased-From: b3f0c59 (random-zebra)
07a7081 [RPC][Tests] createrawzerocoinpublicspend --> createrawzerocoinspend (random-zebra)
ccd5b80 [Tests] Refactor zerocoin_valid_public_spend into zerocoin_spends (random-zebra)
0b551a9 [Tests] Add zerocoins to PoS cache (random-zebra)
ae841ed [RPC] use json object as output of mintzerocoin (random-zebra)
5539b01 [Tests] Restore p2p_zpos_fakestake (random-zebra)
8f84377 [Tests] Lower zerocoin confirmations on regtest (random-zebra)
f36a035 [Tests] Fix zerocoin_valid_public_spend with new v3 activation height Github-Pull: #1218 Rebased-From: acf8fea (random-zebra)
d7804b7 [Tests] Set public spend activation for regtest to block 400 (from 350) (random-zebra)
e8b7ce3 [RPC] Refactor spendzerocoin/spendzcoinmints, fix createrawzerocoinstake (random-zebra)
9134f40 [Tests] Introduce PIVX specific blocktools (random-zebra)
56cfbdd [Tests] Cleanup rpc_spork functional test with new util functions Github-Pull: #1218 Rebased-From: 68ce4e9 (random-zebra)
e5e6f28 [Tests] Define spork util functions (random-zebra)
ac6f95e [Tests] Use PoS_cache in zerocoin_public_spend Github-Pull: #1218 Rebased-From: 383ab89 (random-zebra)
e093f7b [RPC] Add mint txid to spendrawzerocoin (and look for it if empty) Github-Pull: #1218 Rebased-From: 422f003 (random-zebra)
8ebd65a [Trivial] Detailed debug log for received spork messages Github-Pull: #1218 Rebased-From: afabe8c (random-zebra)
f669844 [Tests] Define a new 'PoS' cache with 330-blocks chain Github-Pull: #1218 Rebased-From: 80306e1 (random-zebra)
3c84efd [Tests] Fix CheckBlockHeader version after block 300 for regtest Github-Pull: #1218 Rebased-From: af05235 (random-zebra)
3b8de3a [Tests] Have combine_logs default to most recent test dir (random-zebra)
baa97af [Tests] rename base class to PivxTestFramework Github-Pull: #1218 Rebased-From: 8f668b6 (random-zebra)
ab553bf [Tests] Debug assert_raises_rpc_error Github-Pull: #1218 Rebased-From: 261bb6a (random-zebra)
76531e2 [Cleanup] Replace addr purpose strings with AddressBookPurpose constants Github-Pull: #1238 Rebased-From: 768694f (random-zebra)
09120ce [RPC] Fix Base58Type in ListaddressesForPurpose (random-zebra)
7e32b1e [RPC] Add optional bool arg to listdelegators to show blacklisted addrs Github-Pull: #1238 Rebased-From: 34e871c (random-zebra)
8f01bce [RPC] Add optional str argument to delegatoradd for address label Github-Pull: #1238 Rebased-From: 21f1b9d (random-zebra)
bb1c8f2 [Docs] Update build-unix.md (Fuzzbawls)
f035a4a [Cleanup] Remove precomputing (Fuzzbawls)
ee4aed3 [Trivial] Adding load txs on demand todo text. (furszy)
784094b [Startup] Decrease the amount of blocks checked for corruption in the startup. (furszy)
3b67bc6 [GUI][Performance] Optimizations to every list view load in the GUI. (furszy)
7da7eb7 [Model] Maximum amount of loaded record in ram, preventing any self-spamming. (furszy)
aeaf418 [GUI] Adding the capability to decrease the screen size for smaller screens support. (furszy)
2a5d14d [Wallet] IsEquivalentTo commented for now to not add an extra round of serialization + hash calculation in every read transaction in the wallet startup. (furszy)
f7a1420 Minor changes within 4.0 wallet FAQ Github-Pull: #1224 Rebased-From: 43b783f (NoobieDev12)
053d365 [Trivial] Remove spammy log in in StakeV1 Github-Pull: #1233 Rebased-From: f9857f7 (random-zebra)
16441e9 [GUI][Trivial] Minor edits to written content Github-Pull: #1184 Rebased-From: dae64f3 (random-zebra)
ffac2a7 [BUG][RPC] fix signature check (against old format) in mnbudgetrawvote Github-Pull: #1206 Rebased-From: ae063d0 (random-zebra)
e82e2f5 [GUI][Bug] Show locked balance in the available total amount and notify the user about its existence. (furszy)
47d2c40 [Backport][Performance] Cache best block hash for miner thread usage + refactor. (furszy)
fe12794 [Wallet] Remove un-necessary CheckTransaction call when loading wallet. (Fuzzbawls)
b8f2b1a [Build] Clean up warnings (Cave Spectre)
d4e6693 [Cleanup] Remove unnecessary QtCreator files (Fuzzbawls)
361757b [Build] Bump snapcraft nightlies to 4.0.99 (Fuzzbawls)

Pull request description:

  Updates the `4.0` branch with relevant merged PRs in preparation for tagging the `4.0.1` release.

  Included PRs:
  #1204
  #1205
  #1199
  #1222
  #1203
  #1223
  #1206
  #1184
  #1233
  #1224
  #1231
  #1228
  #1217
  #1234
  #1207
  #1238
  #1218
  #1237
  #1229
  #1211
  #1243
  #1221
  #1240
  #1242
  #1250
  #1245
  #1252
  #1253
  #1251

ACKs for top commit:
  random-zebra:
    utACK d209897

Tree-SHA512: 092349a93ea4bfe6d6284d5b996055d2900576fab971707458260a848fbdbb15926b13e6ee46469b283721f7dc51a455f5d209a62d9309caa03cecd3b66bd556
@furszy furszy deleted the 2019_huge_wallet_startup branch November 29, 2022 14:05
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3 participants