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set worker counts for pre-migrations

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This commit is contained in:
Steven Allen 2021-01-27 15:47:34 -08:00
parent cffeb1a590
commit bceb246080
1 changed files with 16 additions and 4 deletions
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20
chain/stmgr/forks.go
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@ -4,6 +4,7 @@ import (
"bytes"
"context"
"encoding/binary"
"runtime"
"sort"
"sync"
"time"
@ -885,8 +886,13 @@ func UpgradeCalico(ctx context.Context, sm *StateManager, _ MigrationCache, cb E
}
func UpgradeActorsV3(ctx context.Context, sm *StateManager, cache MigrationCache, cb ExecCallback, root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet) (cid.Cid, error) {
// TODO: tune this.
config := nv10.Config{MaxWorkers: 1}
// Use all the CPUs except 3.
workerCount := runtime.NumCPU() - 3
if workerCount <= 0 {
workerCount = 1
}
config := nv10.Config{MaxWorkers: uint(workerCount)}
newRoot, err := upgradeActorsV3Common(ctx, sm, cache, root, epoch, ts, config)
if err != nil {
return cid.Undef, xerrors.Errorf("migrating actors v3 state: %w", err)
@ -908,8 +914,14 @@ func UpgradeActorsV3(ctx context.Context, sm *StateManager, cache MigrationCache
}
func PreUpgradeActorsV3(ctx context.Context, sm *StateManager, cache MigrationCache, root cid.Cid, epoch abi.ChainEpoch, ts *types.TipSet) error {
// TODO: tune this.
config := nv10.Config{MaxWorkers: 1}
// Use half the CPUs for pre-migration, but leave at least 3.
workerCount := runtime.NumCPU()
if workerCount <= 4 {
workerCount = 1
} else {
workerCount /= 2
}
config := nv10.Config{MaxWorkers: uint(workerCount)}
_, err := upgradeActorsV3Common(ctx, sm, cache, root, epoch, ts, config)
return err
}