On Mon, 26 Nov 2001, Daniel Phillips wrote:
> So far, this seems to be working out pretty well. OK, without further ado...
By popular request, the TODO list in my VM patch:
VM TODO list
Forever valid TODO entries:
- keep up with the official kernel
- port over bugfixes
- minimise the diff by keeping code in sync, where possible
Easy short-term features:
- IO clustering for page_launder() and sync_old_buffers()
- readahead on per-VMA level (+ drop behind?)
- reclaim swap space from try_to_swap_out(), for better
low-swap operation
- more graceful degradation when the load gets high
- reducing readahead
- unfair pageout so not all apps fall over
- simplify SMP locking
- replace foo()/foo_pgd()/foo_pmd()/foo_pte() stuff with
one single function using a for_each_pte() macro
for_each_pte(ptep, mm, start_address, end_address)
Long-term features:
- reverse mapping
- memory objects, using pagecache and tmpfs for storage so
the memory object itself doesn't introduce any new overhead
- using the memory objects, removing page table copying from fork()
- load control able to deal with really extreme loads, swapping
(patches available from my home page)
cheers,
Rik
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