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cmd/utils: prealloc + clear map

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This commit is contained in:
cuiweixie 2026-01-20 22:05:43 +08:00
parent 127d1f42bb
commit a584b07b23
1 changed files with 2 additions and 2 deletions
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4
cmd/utils/cmd.go
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@ -512,7 +512,7 @@ func ImportPreimages(db ethdb.Database, fn string) error {
stream := rlp.NewStream(reader, 0) stream := rlp.NewStream(reader, 0)
// Import the preimages in batches to prevent disk thrashing // Import the preimages in batches to prevent disk thrashing
preimages := make(map[common.Hash][]byte) preimages := make(map[common.Hash][]byte, 1024)
for { for {
// Read the next entry and ensure it's not junk // Read the next entry and ensure it's not junk
@ -528,7 +528,7 @@ func ImportPreimages(db ethdb.Database, fn string) error {
preimages[crypto.Keccak256Hash(blob)] = common.CopyBytes(blob) preimages[crypto.Keccak256Hash(blob)] = common.CopyBytes(blob)
if len(preimages) > 1024 { if len(preimages) > 1024 {
rawdb.WritePreimages(db, preimages) rawdb.WritePreimages(db, preimages)
preimages = make(map[common.Hash][]byte) clear(preimages)
} }
} }
// Flush the last batch preimage data // Flush the last batch preimage data