From: Rik van Riel <riel@conectiva.com.br> To: Alan Cox <alan@lxorguk.ukuu.org.uk> Subject: [PATCH] minor page aging update Date: Mon, 24 Sep 2001 17:38:45 -0300 (BRST) Cc: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org> 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 regards, Rik -- 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/