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[performance] minimise log field allocations (#3529)

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* when appending log field only do so by minimal amount

* move slice utils to separate package to fix import cycle, add GrowJust() and AppendJust() functions

* fix GrowJust() not returning slice of same length

* improved xslices tests

* make AppendJust() test check for slice contents, fix AppendJust() final copying behaviour

* add a +1 with field growth to try minimise allocation for log 'msg' field
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kim 2024-11-11 15:45:19 +00:00 • committed by GitHub
commit e3c2b790fd
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29 changed files with 189 additions and 76 deletions
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6
internal/db/bundb/statusfave.go
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@ -31,7 +31,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/state"
"github.com/superseriousbusiness/gotosocial/internal/util"
"github.com/superseriousbusiness/gotosocial/internal/util/xslices"
"github.com/uptrace/bun"
)
@ -155,7 +155,7 @@ func (s *statusFaveDB) GetStatusFaves(ctx context.Context, statusID string) ([]*
// Reorder the statuses by their
// IDs to ensure in correct order.
getID := func(f *gtsmodel.StatusFave) string { return f.ID }
util.OrderBy(faves, faveIDs, getID)
xslices.OrderBy(faves, faveIDs, getID)
if gtscontext.Barebones(ctx) {
// no need to fully populate.
@ -339,7 +339,7 @@ func (s *statusFaveDB) DeleteStatusFaves(ctx context.Context, targetAccountID st
}
// Deduplicate determined status IDs.
statusIDs = util.Deduplicate(statusIDs)
statusIDs = xslices.Deduplicate(statusIDs)
// Invalidate any cached status faves for this status ID.
s.state.Caches.DB.StatusFave.InvalidateIDs("ID", statusIDs)