On 03/28/2014 08:36 AM, Dan Streetman wrote:
Well my general idea was to modify shrink_page_list() so that instead of calling add_to_swap() and then pageout(), anonymous pages would be added to a compressed cache. I haven't worked out all the specific details, but I am initially thinking that the compressed cache could simply repurpose incoming pages to use as the compressed cache storage (using its own page mapping, similar to swap page mapping), and then add_to_swap() the storage pages when the compressed cache gets to a certain size. Pages that don't compress well could just bypass the compressed cache, and get sent the current route directly to add_to_swap().
That sounds a lot like what zswap does. How is your proposal different? And, is there an easier way to implement that difference? :) -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>