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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/conversation.go
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@ -31,7 +31,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/paging"
"github.com/superseriousbusiness/gotosocial/internal/state"
"github.com/superseriousbusiness/gotosocial/internal/util"
"github.com/superseriousbusiness/gotosocial/internal/util/xslices"
"github.com/uptrace/bun"
"github.com/uptrace/bun/dialect"
)
@ -209,7 +209,7 @@ func (c *conversationDB) getConversationsByLastStatusIDs(
// Reorder the conversations by their last status IDs to ensure correct order.
getID := func(b *gtsmodel.Conversation) string { return b.ID }
util.OrderBy(conversations, conversationLastStatusIDs, getID)
xslices.OrderBy(conversations, conversationLastStatusIDs, getID)
if gtscontext.Barebones(ctx) {
// no need to fully populate.
@ -558,7 +558,7 @@ func (c *conversationDB) DeleteStatusFromConversations(ctx context.Context, stat
// Invalidate cache entries.
updatedConversationIDs = append(updatedConversationIDs, deletedConversationIDs...)
updatedConversationIDs = util.Deduplicate(updatedConversationIDs)
updatedConversationIDs = xslices.Deduplicate(updatedConversationIDs)
c.state.Caches.DB.Conversation.InvalidateIDs("ID", updatedConversationIDs)
return nil