Re: [PATCH (updated)] timer: Run calc_load halfway through each round_jiffies second

Pavel Machek
2007-03-05T21:38:31Z

Hi!

> Whenever jiffies is started at a multiple of 5*HZ or
> wraps, calc_load is run exactly on the second which is
> when tasks using round_jiffies will be scheduled to run.
> This has a bad effect on the load average, making it
> tend towards 1.00 if a task happens to run every time
> the load is being calculated.
>
> This changes calc_load so that it updates load half a
> second after any tasks scheduled using round_jiffies.

Hmm, otoh this makes calc_load more expensive, power-wise, because it
needs to wake the cpu once more?

Timetraveling, sorry.
Pavel
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