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Tuning FAPolicy Guidance #312

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smhanes15 opened this issue Jul 18, 2024 · 1 comment
Open

Tuning FAPolicy Guidance #312

smhanes15 opened this issue Jul 18, 2024 · 1 comment

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@smhanes15
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RHEL-8 host running newest available kernel. Periodically see a host go down with "Core dump to | /bin/false pipe failed". 12 CPUs and 20GB RAM. No other host is approaching the numbers below. Seeking tuning guidance.

Suspicion is fapolicy isn't tuned well to the workload this host performs.

Within 10 minutes of starting the host up, fapolicy statistics has output such as:

Permissive: false
q_size: 800
Inter-thread max queue depth 0
Allowed accesses: 9,467,715
Denied accesses: 1
Trust database max pages: 12800
Trust database pages in use: 3012 (23%)

Subject cache size: 32,687
Subject slots in use: 32,687 (100%)
Subject hits: 9,435,029
Subject misses: 428,018
Subject evictions: 395,331 (4%)

Object cache size: 20,483
Object slots in use: 7943 (38%)
Object hits: 9,459,772
Object misses: 12,292
Object evictions: 4349 (0%)

@radosroka
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Does this happen also with permissive=true? Stats looks good nothing irregular.

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