Comments below ...
On Thu, 2005-08-11 at 09:43 +0000, yangyi wrote:
> +#ifndef CONFIG_CRITICAL_LATENCY_HIST
> if (!report_latency(delta))
> goto out;
> +#endif
Why ? This combined with the hunk below is just preempt_threshold ..
Just use preempt_threshold instead of all the ifdefs everywhere .
> ____trace(cpu, TRACE_FN, tr, CALLER_ADDR0, parent_eip, 0, 0, 0);
> /*
> @@ -1393,11 +1382,13 @@ check_critical_timing(int cpu, struct cp
> if (tr->critical_sequence != max_sequence || down_trylock(&max_mutex))
> goto out;
>
> +#ifndef CONFIG_CRITICAL_LATENCY_HIST
> if (!preempt_thresh && preempt_max_latency > delta) {
> printk("bug: updating %016Lx > %016Lx?\n",
> preempt_max_latency, delta);
> printk(" [%016Lx %016Lx %016Lx]\n", T0, T1, T2);
> }
> +#endif
>
> latency = cycles_to_usecs(delta);
>
-
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