Re: [RFC] sched: implement the exclusive wait queue as a LIFO queue

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Apr 28, 2010 at 4:15 PM, Yong Zhang <yong.zhang@xxxxxxxxxxxxx> wrote:
>
> What do you mean "we don't need these processes"?

If the work is less than the workers, we don't need the workers at the
tail of the exculsive list.

>
>> without them, why we wake them up?
>
> So some processs(at the tail of exclusive list)will be treated abnormally
> and it will sleep for a long time, is this reasonable?
>

If there isn't enough work to be done, we'd better not disrupt them
and  leave them sleeping forever to keep the scheduler happier. Do we
have reason to keep fair to all the workers? Does it have benefit?

-- 
Regards,
Changli Gao(xiaosuo@xxxxxxxxx)
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux