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Can I get CXL read information with pcm-sensor-server? #572

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hyeongtakji opened this issue Jul 26, 2023 · 5 comments
Open

Can I get CXL read information with pcm-sensor-server? #572

hyeongtakji opened this issue Jul 26, 2023 · 5 comments
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enhancement help wanted

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@hyeongtakji
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Hello,

d2a8e58 added CXL metrics, but as far as I can see, I can only check CXL write information with pcm-sensor-server. Is there any specific reason why CXL read has not been added?
@rdementi
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rdementi commented Sep 13, 2023 •
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there are some HW limitations of the PMU. But we can add system-wide CXL read metric in pcm-sensor-server (similar to the one in the pcm-memory).

@hyeongtakji
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Hello Dementiev, thank you for your reply.

But we can add system-wide CXL read metric in pcm-sensor-server (similar to the one in the pcm-memory).

Great to hear that! Is there any plan for support?

@davelarsennl
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Hi Roman,
Can you advise whether the CXL read metrics limitation is addressed with Emerald Rapids?
Thanks, Dave

@rdementi
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rdementi commented Feb 26, 2024 •
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Hi Dave, (sorry for the late response) Emerald Rapids has the same limitation.

@HJ-Fan
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HJ-Fan commented Sep 25, 2024

But we can add system-wide CXL read metric in pcm-sensor-server (similar to the one in the pcm-memory).

Hi~ Interested in this too. Is there any plan to support it?

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@opcm @rdementi @HJ-Fan @hyeongtakji @davelarsennl