feat(qt): refresh the whole wallet instead of processing individual updates for huge notification queues #5453
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…updates for huge notification queues
UdjinM6
changed the title
| { | ||
| if (vQueueNotifications.size() - i <= 10) { | ||
| bool invoked = QMetaObject::invokeMethod(ttm, "setProcessingQueuedTransactions", Qt::QueuedConnection, Q_ARG(bool, false)); | ||
| if (vQueueNotifications.size() < 10000) { |
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can you justify this magic number a bit more? why not 500 or 1k or 100k?
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Processing 10K notifications worked ok-ish, with a slight delay for my 500k+ txes wallet. Processing 50-100k was already too slow comparing to refreshing the wallet instead. So I just kept 10k as a threshold. Could be higher or could be lower on different machines I guess, not sure how to pick the right number here.
| @@ -82,6 +83,7 @@ class TransactionTablePriv | |||
| } | |||
| } | |||
| } | |||
| parent->endResetModel(); | |||
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would it be a valid state of parent if an exception would be thrown before endResetModel() is called?
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Hmm.. Not sure I get the question.. What kind of exception? And why you think it should affect parent (TransactionTableModel*)?
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https://doc.qt.io/qt-6/qabstractitemmodel.html#endResetModel
You must call this function after resetting any internal data structure in your model or proxy model.
I see that some methods doesn't have noexcept specifier, more over functions between beginResetModel() and endResetModel() such as getWalletTxs, showTransaction have allocation inside: it means that any time an exception can be thrown.
There're two possible solution for resolve "you must call" request:
- write a wrapper such as
lock_guardthat will call endResetModel() in a destructor. - wrap everything between begin & endResetModel to try-catch and safely call
endResetModel
UdjinM6
dismissed stale reviews from PastaPastaPasta and ogabrielides
via
3ccd0a5
…pdates for huge notification queues (dashpay#5453) ## Issue being fixed or feature implemented It's super slow for wallets with 100.000s of txes to process lots of notifications produced by rescan. Skip them all and simply refresh the whole wallet instead. In my case (500k+ txes testnet wallet) gui update after `rescanblockchain` time is down from _forever_ to ~30 seconds. Same for `wipewallettxes true` (dashpay#5451 ). Gui update after `wipewallettxes`/`wipewallettxes false` is instant (cause there are no txes anymore) vs _forever_ before the patch. ## What was done? refresh the whole wallet when notification queue is above 10K operations actual changes (ignoring whitespaces): dashpay@d013cb4?w=1 ## How Has This Been Tested? running on top of dashpay#5451 and dashpay#5452 , wiping and rescanning w/ and w/out this patch. ## Breaking Changes should be none ## Checklist: - [x] I have performed a self-review of my own code - [ ] I have commented my code, particularly in hard-to-understand areas - [ ] I have added or updated relevant unit/integration/functional/e2e tests - [ ] I have made corresponding changes to the documentation - [x] I have assigned this pull request to a milestone _(for repository code-owners and collaborators only)_
Issue being fixed or feature implemented
It's super slow for wallets with 100.000s of txes to process lots of notifications produced by rescan. Skip them all and simply refresh the whole wallet instead. In my case (500k+ txes testnet wallet) gui update after
rescanblockchaintime is down from forever to ~30 seconds. Same forwipewallettxes true(#5451 ). Gui update afterwipewallettxes/wipewallettxes falseis instant (cause there are no txes anymore) vs forever before the patch.What was done?
refresh the whole wallet when notification queue is above 10K operations
actual changes (ignoring whitespaces): d013cb4?w=1
How Has This Been Tested?
running on top of #5451 and #5452 , wiping and rescanning w/ and w/out this patch.
Breaking Changes
should be none
Checklist: