balance_dirty_pages_ratelimited_nr(9) [suse man page]

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)

FOOTPRINT(1)						    BSD General Commands Manual 					      FOOTPRINT(1)

NAME

     footprint -- gathers memory information about one or more processes

SYNOPSIS

     footprint [-j path] [-f bytes|formatted|pages] [-p name|pid] [-x name|pid] [-t] [-s] [-v] [-y] [-w] [--swapped] [--wired] [-a] process-name |
	       pid | memgraph [...]
     footprint -h, --help

DESCRIPTION

     The footprint utility gathers and displays memory consumption information for the specified processes or memory graph files.

     footprint will display all addressable memory used by the specified processes, but it emphasizes memory considered 'dirty' by the kernel for
     purposes of accounting.  If multiple processes are specified, footprint will de-duplicate multiply mapped objects and will display shared
     objects separately from private ones.

     footprint must be run as root when inspecting processes that are not owned by the current user.

OPTIONS

     -a, --all
	     target all processes (will take much longer)

     -j, --json path
	     also save a JSON representation of the data to the specified path

     -f, --format bytes|formatted|pages
	     textual output should be formatted in bytes, pages, or human-readable formatted (default)

     -p, --proc name
	     target the given process by name (can be used multiple times)

     -p, --pid pid
	     target the given process by pid (can be used multiple times)

     -x, --exclude name/pid
	     exclude the given process by name or pid (can be used multiple times)

	     often used with --all to exclude some processes from analysis

     -t, --targetChildren
	     in addition to the supplied processes, target their children, grandchildren, etc.

     -s, --skip
	     skip processes that are dirty tracked and have no outstanding XPC transactions (i.e., are "clean")

     -v      display vmmap-like output of address space layout

     -y, --summary
	     print only regions with dirty memory, and condense __TEXT, __DATA, and __LINKEDIT regions into 'Other' subtotal

     -w, --wide
	     show wide output with all columns (implies --swapped --wired)

     --swapped
	     show swapped/compressed column, a subset of 'dirty'

     --wired
	     show wired memory column, a subset of 'dirty'

     -h, --help
	     display help and exit

SAMPLE USAGE

     footprint Mail WindowServer

OS X
								 January 29, 2018							      OS X