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mdbx mergeThreshold option #665

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Alex Sharov 2022-10-03 16:53:23 +07:00 committed by GitHub
parent ca2ebac0f9
commit 9860f845fe
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1 changed files with 18 additions and 7 deletions
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25
kv/mdbx/kv_mdbx.go
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@ -59,7 +59,12 @@ type MdbxOpts struct {
syncPeriod time.Duration syncPeriod time.Duration
augumentLimit uint64 augumentLimit uint64
pageSize uint64 pageSize uint64
roTxsLimiter *semaphore.Weighted
// must be in the range from 12.5% (almost empty) to 50% (half empty)
// which corresponds to the range from 8192 and to 32768 in units respectively
mergeThreshold uint64
roTxsLimiter *semaphore.Weighted
} }
func testKVPath() string { func testKVPath() string {
@ -72,11 +77,12 @@ func testKVPath() string {
func NewMDBX(log log.Logger) MdbxOpts { func NewMDBX(log log.Logger) MdbxOpts {
return MdbxOpts{ return MdbxOpts{
bucketsCfg: WithChaindataTables, bucketsCfg: WithChaindataTables,
flags: mdbx.NoReadahead | mdbx.Coalesce | mdbx.Durable, flags: mdbx.NoReadahead | mdbx.Coalesce | mdbx.Durable,
log: log, log: log,
pageSize: kv.DefaultPageSize(), pageSize: kv.DefaultPageSize(),
growthStep: 2 * datasize.GB, growthStep: 2 * datasize.GB,
mergeThreshold: 32768,
} }
} }
@ -160,6 +166,11 @@ func (opts MdbxOpts) WriteMap() MdbxOpts {
return opts return opts
} }
func (opts MdbxOpts) WriteMergeThreshold(v uint64) MdbxOpts {
opts.mergeThreshold = v
return opts
}
func (opts MdbxOpts) WithTableCfg(f TableCfgFunc) MdbxOpts { func (opts MdbxOpts) WithTableCfg(f TableCfgFunc) MdbxOpts {
opts.bucketsCfg = f opts.bucketsCfg = f
return opts return opts
@ -263,7 +274,7 @@ func (opts MdbxOpts) Open() (kv.RwDB, error) {
} }
// must be in the range from 12.5% (almost empty) to 50% (half empty) // must be in the range from 12.5% (almost empty) to 50% (half empty)
// which corresponds to the range from 8192 and to 32768 in units respectively // which corresponds to the range from 8192 and to 32768 in units respectively
if err = env.SetOption(mdbx.OptMergeThreshold16dot16Percent, 32768); err != nil { if err = env.SetOption(mdbx.OptMergeThreshold16dot16Percent, opts.mergeThreshold); err != nil {
return nil, err return nil, err
} }
} }