[packages/kernel/LINUX_4_1] - disable multiqueue by default; mq layer doesn't support I/O schedulers and lack of I/O schedulers

arekm arekm at pld-linux.org
Tue Aug 9 10:08:51 CEST 2016


commit 4a0bd54aafa9922cbfa242984cdb2ccabe9b98ef
Author: Arkadiusz Miśkiewicz <arekm at maven.pl>
Date:   Tue Aug 9 10:08:43 2016 +0200

    - disable multiqueue by default; mq layer doesn't support I/O schedulers and lack of I/O schedulers harm rotational systems a lot. For systems that benefit from MQ and where MQ behaves better than default with I/O scheduler == noop there is a option to enable - scsi_mod.use_blk_mq=1)

 kernel-multiarch.config | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/kernel-multiarch.config b/kernel-multiarch.config
index e75e197..84de54f 100644
--- a/kernel-multiarch.config
+++ b/kernel-multiarch.config
@@ -2474,7 +2474,7 @@ MD_FAULTY all=m
 MD_CLUSTER all=m
 #- file drivers/md/bcache/Kconfig goes here
 BLK_DEV_DM all=m
-DM_MQ_DEFAULT all=y
+DM_MQ_DEFAULT all=n
 DM_DEBUG all=n
 #- file drivers/md/persistent-data/Kconfig goes here
 DM_CRYPT all=m
@@ -5759,7 +5759,7 @@ RAID_ATTRS all=m
 SCSI all=m
 SCSI_DMA all=y
 SCSI_NETLINK all=y
-SCSI_MQ_DEFAULT all=y
+SCSI_MQ_DEFAULT all=n
 SCSI_PROC_FS all=y
 #- SCSI support type (disk, tape, CD-ROM)
 BLK_DEV_SD all=m
================================================================

---- gitweb:

http://git.pld-linux.org/gitweb.cgi/packages/kernel.git/commitdiff/4a0bd54aafa9922cbfa242984cdb2ccabe9b98ef



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