[PATCH] minor page aging update

Rik van Riel (riel@conectiva.com.br)
Mon, 24 Sep 2001 17:38:45 -0300 (BRST)

Hi Alan,

here is the promised minor page aging update to 2.4.9-ac15:

1) use min()/max() for age_page_{up,down}, now the
thing is resistant to people changing PAGE_AGE_DECL ;)

2) in try_to_swap_out(), still adjust the page age even if
the zone does have enough inactive pages ... this is a
very cheap operation and will keep the page aging info
in zones better up to date

3) only call do_try_to_free_pages() when we have a free
shortage, this means kswapd() won't waste CPU time on
working sets which fit in memory, but "spill over"
into the inactive list ... also update comments a bit

4) remove run_task_queue(&tq_disk) from kswapd() since
page_launder() will already have done this if needed



IA64: a worthy successor to the i860.

http://www.surriel.com/ http://www.conectiva.com/ http://distro.conectiva.com/

- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/