Re: pre2 swap_out() changes

[Zlatko Calusic <zlatko@iskon.hr>]

Linus Torvalds <torvalds@transmeta.com> writes:

> On Thu, 11 Jan 2001, Marcelo Tosatti wrote:
> > 
> > Since no process calls swap_out() directly, I dont see any sense on the
> > comment above. 
> 
> Stage #2 is to allow them to call refill_inactive() in the low-memory case
> (right now processes can only do "page_launder()" in alloc_pages(), and I
> think that is wrong - it means that the only one scanning page tables etc
> is kswapd)
> 

Performance of 2.4.0-pre2 is terrible as it is now. There is a big
performance drop from 2.4.0. Simple test (that is not excessively
swapping, I remind) shows this:

2.2.17     -> make -j32  392.49s user 47.87s system 168% cpu 4:21.13 total
2.4.0      -> make -j32  389.59s user 31.29s system 182% cpu 3:50.24 total
2.4.0-pre2 -> make -j32  393.32s user 138.20s system 129% cpu 6:51.82 total

-- 
Zlatko
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