| # Copyright 2017 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| # eMMC devices queue features are not currently supported, so the IO queue |
| # length is 2. |
| # Leaving the IO scheduler queue length at 128 mean up to 126 IOs can be |
| # sitting in the queue. An IO can sit up to 4s in the queue. |
| # Instead, reduce the IO scheduler queue length to 32, putting processes that |
| # read or write to sleep earlier. |
| # 30 IOs are more than enough for finding merging candidates. |
| ACTION=="add", SUBSYSTEM=="block", KERNEL=="mmcblk[0-9]", SUBSYSTEMS=="mmc", \ |
| ATTR{queue/nr_requests}="32" |
