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#1 2018-10-13 16:07:11

superipermeganoob
Member
Registered: 2011-05-03
Posts: 17

what io/scheduler for mixed ssd and hdd?

hi, i installed arch on a system with 2 disk, one SSD and one HDD, what io/scheduler do i use? cfq for HDD and noop for SSD? noop for both? the wiki is not clear

[root@Dell-g5-5587 i]# cat /sys/block/nvme0n1/queue/scheduler
[none] mq-deadline kyber bfq 
[root@Dell-g5-5587 i]# cat /sys/block/sda/queue/scheduler
noop deadline [cfq] 

are there other solutions to optimize the system besides moving tmp files in the ram?
fstab:

# <file system> <dir> <type> <options> <dump> <pass>
# /dev/nvme0n1p0 EFI
#UUID=58be-7418					/boot		vfat		defaults						0 2

# /dev/nvme0n1p4 SWAP
UUID=3ab2f54f-7c2a-4b6c-a9ae-460462072fbd	swap		swap		defaults						0 0 

# compile in RAM
shm                    				/dev/shm      	tmpfs     	nodev,nosuid,noatime					0 0

# /tmp in RAM
tmpfs						/tmp		tmpfs		defaults,noatime,mode=1777				0 0

# /var/tmp in RAM
tmpfs						/var/tmp	tmpfs		defaults,noatime,mode=1777				0 0

# /dev/nvme0n1p6 LABEL=ARCH_ROOT
UUID=44f44174-0528-4fe0-97e0-dca22d0ba340	/         	ext4      	defaults,noatime,discard,commit=100,data=ordered	0 1

# /dev/nvme0n1p7 LABEL=ARCH_HOME
UUID=3fbfa3a8-d9da-4528-ae68-6ba0e4e7e73b	/home     	ext4      	defaults,noatime,discard,commit=100,data=ordered	0 2

# /dev/sda1
UUID=4705d098-bf4f-495a-b26d-60c03cd3c784	/mnt/Data	ext4		defaults,relatime					0 2

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#2 2018-10-13 16:54:41

jasonwryan
Anarchist
From: .nz
Registered: 2009-05-09
Posts: 25,918
Website

Re: what io/scheduler for mixed ssd and hdd?

Not an Installation issue, moving to NC...


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