Details
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Bug
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Resolution: Unresolved
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Minor
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None
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Lustre 2.14.0, Lustre 2.16.0
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None
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3
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9223372036854775807
Description
Newer client nodes have up to 192 cores, and it is likely that more cores will appear in short order.
The client runs 2-4 ldlm_cbCP_NN threads per CPT (32 for 192 cores), one ldlm_bl_NN thread per core, which is far too many since they are almost never active. It is unlikely that the client-side LDLM threads need to be per-CPT or per-core, and could instead have a fixed number of threads (e.g. sqrt(num_cores)) that are shared among all cores.