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SubjectRe: [PATCH] Export CPU Scheduler Tunables via DebugFS
Hi,

On Sun, Sep 03, 2006 at 08:28:02AM -0500, Brandon Philips wrote:
> This patch exports the CPU scheduler tunables via DebugFS.


> +int min_timeslice;
> +#define MIN_TIMESLICE (min_timeslice)
> +int def_timeslice;
> +#define DEF_TIMESLICE (def_timeslice)
> +int on_runqueue_weight;
> +#define ON_RUNQUEUE_WEIGHT (on_runqueue_weight)
> +int child_penalty;
> +#define CHILD_PENALTY (child_penalty)
> +int parent_penalty;
> +#define PARENT_PENALTY (parent_penalty)
> +int exit_weight;
> +#define EXIT_WEIGHT (exit_weight)
> +int prio_bonus_ratio;
> +#define PRIO_BONUS_RATIO (prio_bonus_ratio)
> +int max_bonus;
> +#define MAX_BONUS (max_bonus)
> +int interactive_delta;
> +#define INTERACTIVE_DELTA (interactive_delta)
> +int max_sleep_avg;
> +#define MAX_SLEEP_AVG (max_sleep_avg)
> +int starvation_limit;
> +#define STARVATION_LIMIT (starvation_limit)

__read_mostly? Except for those variables which are being tweaked
quite often by live scheduler code... (probably none)

This only concerns the case of CONFIG_DEBUGFS_SCHED being activated,
but it may still be nice to have, I think, since scheduler stuff
should rather be fast than slow.

But since it is a debugging-only option omitting __read_mostly may
make sense...

Andreas Mohr

--
VGER BF report: H 0.00129204
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