case <-mTimer.C:
			saveMRFToDisk()
			mTimer.Reset(mrfSaveInterval)
		case <-p.ctx.Done():
			p.mrfStopCh <- struct{}{}
			xioutil.SafeClose(p.mrfSaveCh)
			// We try to save if possible, but we don't care beyond that.
			saveMRFToDisk()
			return
		case e, ok := <-p.mrfSaveCh:
			if !ok {
				return
			}
			entries[e.versionID] = e

			if len(entries) >= mrfMaxEntries {
				saveMRFToDisk()

		newConcurrent := concurrent + (concurrent+1)/2
		autoTunedCapacityNeeded := uint64(newConcurrent * size)
		if capacity < autoTunedCapacityNeeded {
			// Turn-off auto-tuning if next possible concurrency would reach beyond disk capacity.
			return true, false, ""
		}
	}

	return true, autotune, ""
}

// DriveSpeedtestHandler - reports throughput of drives available in the cluster