Re: Retrieve number of read/write operations for a particular file in Cephfs

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Hello,

On Mon, Jan 16, 2023 at 11:04 AM thanh son le <ltson4121994@xxxxxxxxx> wrote:
>
> Hi,
>
> I have been studying the document from Ceph and Rados but I could not find
> any metrics to measure the number of read/write operations for each file. I
> understand that Cephfs is the front-end, the file is going to be stored as
> an object in the OSD and I have found that Ceph provides a Cache Tiering
> feature which also requires the monitor for read/write operation for each
> object. Could someone please give me guidance on how this is achieved?
> Thanks.

You can try to get the "perf dump" from ceph-fuse to measure. The osd
write/reads are not fine-grained though.

-- 
Patrick Donnelly, Ph.D.
He / Him / His
Red Hat Partner Engineer
IBM, Inc.
GPG: 19F28A586F808C2402351B93C3301A3E258DD79D
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