balance_dirty_pages_ratelimited_nr(9) suse man page | unix.com

BALANCE_DIRTY_PAGES_(9) 				    Memory Management in Linux					   BALANCE_DIRTY_PAGES_(9)

NAME
       balance_dirty_pages_ratelimited_nr - balance dirty memory state

SYNOPSIS
       void balance_dirty_pages_ratelimited_nr(struct address_space * mapping, unsigned long nr_pages_dirtied);

ARGUMENTS
       mapping
	   address_space which was dirtied

       nr_pages_dirtied
	   number of pages which the caller has just dirtied

DESCRIPTION
       Processes which are dirtying memory should call in here once for each page which was newly dirtied. The function will periodically check
       the system's dirty state and will initiate writeback if needed.

       On really big machines, get_writeback_state is expensive, so try to avoid calling it too often (ratelimiting). But once we're over the
       dirty memory limit we decrease the ratelimiting by a lot, to prevent individual processes from overshooting the limit by (ratelimit_pages)
       each.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010						   BALANCE_DIRTY_PAGES_(9)