Re: RFC: default group_isolation to 1, remove option

[Jens Axboe]

On 2011-03-07 21:34, Vivek Goyal wrote:
> One side affect of limitless bio queueing is an AIO process can queue
> up lots of bios in a group and if one tries to kill the process, it
> waits for all the IOs to finish and can take up a very long time
> depending on throttling limits of the group.

But I doubt this is a problem, really. Sure you could queue tons of IO
with aio if you really wanted, but aio does maintain er per-system
limit. So it's not infinite. The fact that waiting for pending aios can
take a while if you ctrl-c or kill the process is not a real worry,
imho.

-- 
Jens Axboe

--
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/