Too many I/O controller patches
taka at valinux.co.jp
Tue Aug 5 05:01:50 PDT 2008
> 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
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
> 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.
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