Performance issue with SSHD hybrid drive

ombre703 · 2022-03-12 15:16:40

Hello,
I have a performance issue that is making my system almost unusable : it freezes randomly, even when I haven't resource-intensive programs running.
Some research on the wiki made me able to point out an issue with my Seagate SSHD (very slow io), but this SSHD is quite fast on Windows.

Here is my config (MSI Leopard GP75-9SD laptop) :
- Intel i7-9750H with 12 virtual cores (6 physics)
- NVIDIA GTX 1660 Ti (with proprietary drivers, working fine)
- RAM : 16GB (no swap partition)
- SSD NVME (512GB) with Windows 11 partition and Linux's / (btrfs) and /boot/efi (fat32)
- Seagate FireCuda SSHD Disk (2TB) where I have one NTFS partition (1TB) for Windows + 1TB partition for the linux /home (btrfs)

Some command output :

htop output :
https://i.imgur.com/gzZ3xgI.png

iostat output (sda = the SSHD) when only Brave is opened playing a youtube video
https://i.imgur.com/1xuqiqe.png

free output ("disponible" = "avaliable")
https://i.imgur.com/LUWDQZY.png

Some benchmark results :

On the SSHD partition with Crystal on Windows 11 (with VSCode + Brave on Youtube) :
Directories such as Desktop, Documents, ... are located on the SSHD.
https://i.imgur.com/QOW8KDc.png

On the SSHD with linux (in the same conditions) :

With hdparm :

$ sudo hdparm -t /dev/sda 

/dev/sda:
 Timing buffered disk reads:  36 MB in  3.01 seconds =  11.96 MB/sec

$ sudo hdparm -t /dev/sda3

/dev/sda3:
 Timing buffered disk reads:  72 MB in  3.06 seconds =  23.53 MB/sec

With KDiskMark :
https://i.imgur.com/U0QJTEA.png

There is no errors related to this in the system logs.

How can I have the same performance with this disk on linux as in Windows ?
And, if I missed something, how can I fix this performance issue ?
I haven't found any information that helped me on Google or in any distro wiki / forum about a similar problem.

Thank you for any help.

Edit : adding some complementary informations

Mount options for /home in /ets/fstab :

 UUID=05161b6c-d62c-424f-8334-079f518906e6 /home          btrfs   defaults,noatime,autodefrag,compress=zstd 0 0

Kernel parameters (/etc/default/grub) :

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash apparmor=1 security=apparmor"

Kernel modules (/etc/mkinitcpio.conf) :

MODULES="crc32c-intel intel_lpss_pci"

Mod Edit - Replaced oversized images with links.
CoC - Pasting pictures and code

Last edited by ombre703 (2022-03-14 10:20:44)

Ferdinand · 2022-03-12 17:57:01

I can't say that I see any particular reason why you should get twice the sequential read speed in CrystalDiskMark under Windows than you do with hdparm under Linux - but they are different tools, and there's always a chance you're comparing apples to oranges.

I tried to find a cross platform disk tester, but didn't, except maybe Phoronix.
But I did find that KDiskMark looks remarkably like CrystalDiskMark, so maybe they've some similarities under the hood too?

Last edited by Ferdinand (2022-03-12 17:58:21)

ombre703 · 2022-03-12 18:55:21

I did a benchmark with KDiskMark (I'll do it with Phoronix on both systems later).
Here is the result :
https://i.imgur.com/U0QJTEA.png

I think that writing is even boosted because my partition is mounted with the noatime parameter in the fstab.
I don't have any explanation for the reading speed...

I'll update the first post with this benchmark and by adding some informations.
Thank you for your response.

Last edited by ombre703 (2022-03-12 18:56:54)

Arch Linux

#1 2022-03-12 15:16:40