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ethdb/pebble: use Pebble's internal constant calculation

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Péter Szilágyi 2023-10-13 16:49:37 +03:00
parent 38c2925944
commit 2941c522bb
1 changed files with 9 additions and 2 deletions
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11
ethdb/pebble/pebble.go
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@ -146,8 +146,15 @@ func New(file string, cache int, handles int, namespace string, readonly bool, e
// The max memtable size is limited by the uint32 offsets stored in // The max memtable size is limited by the uint32 offsets stored in
// internal/arenaskl.node, DeferredBatchOp, and flushableBatchEntry. // internal/arenaskl.node, DeferredBatchOp, and flushableBatchEntry.
// Taken from https://github.com/cockroachdb/pebble/blob/master/open.go#L38 //
maxMemTableSize := 4<<30 - 1 // Capped by 4 GB // - MaxUint32 on 64-bit platforms;
// - MaxInt on 32-bit platforms.
//
// It is used when slices are limited to Uint32 on 64-bit platforms (the
// length limit for slices is naturally MaxInt on 32-bit platforms).
//
// Taken from https://github.com/cockroachdb/pebble/blob/master/internal/constants/constants.go
maxMemTableSize := (1<<31)<<(^uint(0)>>63) - 1
// Two memory tables is configured which is identical to leveldb, // Two memory tables is configured which is identical to leveldb,
// including a frozen memory table and another live one. // including a frozen memory table and another live one.