On Thu, Nov 22, 2012 at 5:41 PM, Fengguang Wu [off-list ref] wrote:

On Wed, Nov 21, 2012 at 12:07:22PM +0200, Metin Döşlü wrote:

quoted

On Wed, Nov 21, 2012 at 12:00 PM, Jaegeuk Hanse [off-list ref] wrote:

quoted

On 11/21/2012 05:58 PM, metin d wrote:

Hi Fengguang,

I run tests and attached the results. The line below I guess shows the data-1 page caches.

0x000000080000006c       6584051    25718  __RU_lA___________________P________    referenced,uptodate,lru,active,private


I thinks this is just one state of page cache pages.

But why these page caches are in this state as opposed to other page
caches. From the results I conclude that:

data-1 pages are in state : referenced,uptodate,lru,active,private

I wonder if it's this code that stops data-1 pages from being
reclaimed:

shrink_page_list():

                if (page_has_private(page)) {
                        if (!try_to_release_page(page, sc->gfp_mask))
                                goto activate_locked;

What's the filesystem used?

It was ext3.

quoted

data-2 pages are in state : referenced,uptodate,lru,mappedtodisk

Thanks,
Fengguang

-- 
Metin Döşlü

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>