Hi there,
it is well documented that Ceph performance is extremely poor with consumer ssd/nvme block devices.
Recommending enterprise or data center devices is IMHO not sufficient as these terms are not really standardized.
I propose to write a little system program which determines the properties of a device with regards to the system calls performed by ceph osd.
Can anyone hint me how such a program should look like? Simply some timing of fsync system calls?
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