The ksoftirqd process keeps utilising a lot of system CPU time in RHEL 6.3
Issue
- According to
top
, the ksoftirqd process consistently generates a high percentage of CPU utilisation - The
perf report
indicates the following:
42,73% ksoftirqd/0 [kernel.kallsyms] [k] find_busiest_group
14,24% ksoftirqd/0 [kernel.kallsyms] [k] local_clock
14,24% ksoftirqd/0 [kernel.kallsyms] [k] find_next_bit
14,24% ksoftirqd/0 [kernel.kallsyms] [k] memcpy
14,24% ksoftirqd/0 [kernel.kallsyms] [k] _spin_lock
0,28% ksoftirqd/0 [kernel.kallsyms] [k] perf_pmu_nop_void
0,01% ksoftirqd/0 [kernel.kallsyms] [k] native_write_msr_safe
Environment
- Red Hat Enterprise Linux 6.3
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