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Diffstat (limited to 'qa/pconf/cpu/excess_fpe')
| -rw-r--r-- | qa/pconf/cpu/excess_fpe | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/qa/pconf/cpu/excess_fpe b/qa/pconf/cpu/excess_fpe new file mode 100644 index 0000000..fe166eb --- /dev/null +++ b/qa/pconf/cpu/excess_fpe @@ -0,0 +1,43 @@ +#pmieconf-rules 1 +# + +rule cpu.excess_fpe + default = "$rule$" + predicate = +"some_host ( + some_inst ( + kernel.percpu.cpu.sys $hosts$ > $systime_util$ / 100 && + kernel.percpu.syscall $hosts$ < $syscall_rate$ + ) +)" + enabled = no + version = 1 + help = +"This predicate attempts to detect processes generating very large +numbers of floating point exceptions (FPEs). Characteristic of this +situation is heavy system time coupled with low system call rates +(exceptions are delivered through the kernel to the process, taking +some system time, but no system call is serviced on the applications +behalf."; + +string rule + default = "possible high floating point exception rate" + modify = no + display = no; + +percent systime_util + default = 50 + help = +"Threshold percentage for kernel CPU utilization, in the range 0 +(idle) to 100 (completely busy)"; + +double syscall_rate + default = 100 + help = +"Threshold system call rate at which something is deemed amiss."; + +string action_expand + default = %i@%h + display = no + modify = no; + |