perf kmem: Print gfp flags in human readable string
Save libtraceevent output and print it in the header.
# perf kmem stat --page --caller
#
# GFP flags
# ---------
#
00000010: NI: GFP_NOIO
#
000000d0: K: GFP_KERNEL
#
00000200: NWR: GFP_NOWARN
#
000084d0: K|R|Z: GFP_KERNEL|GFP_REPEAT|GFP_ZERO
#
000200d2: HU: GFP_HIGHUSER
#
000200da: HUM: GFP_HIGHUSER_MOVABLE
#
000280da: HUM|Z: GFP_HIGHUSER_MOVABLE|GFP_ZERO
#
002084d0: K|R|Z|NT: GFP_KERNEL|GFP_REPEAT|GFP_ZERO|GFP_NOTRACK
#
0102005a: NF|HW|M: GFP_NOFS|GFP_HARDWALL|GFP_MOVABLE
---------------------------------------------------------------------------------------------------------
Total alloc (KB) | Hits | Order | Mig.type | GFP flags | Callsite
---------------------------------------------------------------------------------------------------------
60 | 15 | 0 | UNMOVABL | K|R|Z|NT | pte_alloc_one
40 | 10 | 0 | MOVABLE | HUM|Z | handle_mm_fault
24 | 6 | 0 | MOVABLE | HUM | do_wp_page
24 | 6 | 0 | UNMOVABL | K | __pollwait
...
Requested-by: Joonsoo Kim <js1304@gmail.com>
Suggested-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Pekka Enberg <penberg@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Joonsoo Kim <js1304@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/1429592107-1807-5-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
projects / firefly-linux-kernel-4.4.55.git / commit