Re: [patch v5 09/15] sched: add power aware scheduling in fork/exec/wake
From: Alex Shi
Date: Sun Feb 24 2013 - 06:55:57 EST
>> Um, let me try to explain again, The utilisation need much time to
>> accumulate itself(345ms). Whenever with or without load weight, many
>> bursting tasks just give a minimum weight to the carrier CPU at the
>> first few ms. So, it is too easy to do a incorrect distribution here and
>> need migration on later periodic balancing.
> I dont understand why forked tasks are taking time to accumulate the
> load.I understand this if it were to be a woken up task.The first time
new forked task will get its load at once.
but the CPU utilization still need time to accumulate, these are
different concept. The cpu utilization means in a past period, this cpu
runs some ms...
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/