Messages in this thread | | | Date | Tue, 05 Aug 2008 21:01:50 +0900 (JST) | Subject | Re: Too many I/O controller patches | From | Hirokazu Takahashi <> |
| |
Hi,
> I think that OOM problems caused by memory/cache systems. > So, it will be better that I/O controller created out of these problems > first, although a lateness of the I/O device would be related. > If these problem can be resolved, its technique should be applied into > normal I/O control as well as cgroups.
Yes, this is one of the problems linux kernel still has, which should be solved.
But I believe this should be done in the linux memory management layer including the cgroup memory controller, which has to work correctly on any type of device with various access speeds.
I think it's better that I/O controllers should only focus on flow of I/O requests. This approach will keep the implementation of linux kernel simple.
> Buffered write I/O is also related with cache system. > We must consider this problem as I/O control. > I don't have a good way which can resolve this problems. >
Thank you, Hirokazu Takahashi.
| |