The patch titled
Subject: tools/vm/slabinfo: use getopt no_argument/optional_argument
has been removed from the -mm tree. Its filename was
tools-vm-slabinfo-use-getopt-no_argument-optional_argument.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Subject: tools/vm/slabinfo: use getopt no_argument/optional_argument
This patchset adds 'extended' slabinfo mode that provides additional
information:
-- totals summary
-- slabs sorted by size
-- slabs sorted by loss (waste)
The patches also introduces several new slabinfo options to limit the
number of slabs reported, sort slabs by loss (waste); and some fixes.
Extended output example (slabinfo -X -N 2):
Slabcache Totals
----------------
Slabcaches : 91 Aliases : 119->69 Active: 63
Memory used: 199798784 # Loss : 10689376 MRatio: 5%
# Objects : 324301 # PartObj: 18151 ORatio: 5%
Per Cache Average Min Max Total
----------------------------------------------------------------------------
#Objects 5147 1 89068 324301
#Slabs 199 1 3886 12537
#PartSlab 12 0 240 778
%PartSlab 32% 0% 100% 6%
PartObjs 5 0 4569 18151
% PartObj 26% 0% 100% 5%
Memory 3171409 8192 127336448 199798784
Used 3001736 160 121429728 189109408
Loss 169672 0 5906720 10689376
Per Object Average Min Max
-----------------------------------------------------------
Memory 585 8 8192
User 583 8 8192
Loss 2 0 64
Slabs sorted by size
--------------------
Name Objects Objsize Space Slabs/Part/Cpu O/S O %Fr %Ef Flg
ext4_inode_cache 69948 1736 127336448 3871/0/15 18 3 0 95 a
dentry 89068 288 26058752 3164/0/17 28 1 0 98 a
Slabs sorted by loss
--------------------
Name Objects Objsize Loss Slabs/Part/Cpu O/S O %Fr %Ef Flg
ext4_inode_cache 69948 1736 5906720 3871/0/15 18 3 0 95 a
inode_cache 11628 864 537472 642/0/4 18 2 0 94 a
The last patch in the series addresses Linus' comment from
http://marc.info/?l=linux-mm&m=144148518703321&w=2
(well, it's been some time. sorry.)
gnuplot script takes the slabinfo records file, where every record is a `slabinfo -X'
output. So the basic workflow is, for example, as follows:
while [ 1 ]; do slabinfo -X -N 2 >> stats; sleep 1; done
^C
slabinfo-gnuplot.sh stats
The last command will produce 3 png files (and 3 stats files)
-- graph of slabinfo totals
-- graph of slabs by size
-- graph of slabs by loss
It's also possible to select a range of records for plotting (a range of collected
slabinfo outputs) via `-r 10,100` (for example); and compare totals from several
measurements (to visially compare slabs behaviour (10,50 range)) using
pre-parsed totals files:
slabinfo-gnuplot.sh -r 10,50 -t stats-totals1 .. stats-totals2
This also, technically, supports ktest. Upload new slabinfo to target,
collect the stats and give the resulting stats file to slabinfo-gnuplot
This patch (of 8):
Use getopt constants in `struct option' ->has_arg instead of numerical
representations.
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/vm/slabinfo.c | 34 +++++++++++++++++-----------------
1 file changed, 17 insertions(+), 17 deletions(-)
diff -puN tools/vm/slabinfo.c~tools-vm-slabinfo-use-getopt-no_argument-optional_argument tools/vm/slabinfo.c
--- a/tools/vm/slabinfo.c~tools-vm-slabinfo-use-getopt-no_argument-optional_argument
+++ a/tools/vm/slabinfo.c
@@ -1268,23 +1268,23 @@ static void output_slabs(void)
}
struct option opts[] = {
- { "aliases", 0, NULL, 'a' },
- { "activity", 0, NULL, 'A' },
- { "debug", 2, NULL, 'd' },
- { "display-activity", 0, NULL, 'D' },
- { "empty", 0, NULL, 'e' },
- { "first-alias", 0, NULL, 'f' },
- { "help", 0, NULL, 'h' },
- { "inverted", 0, NULL, 'i'},
- { "numa", 0, NULL, 'n' },
- { "ops", 0, NULL, 'o' },
- { "report", 0, NULL, 'r' },
- { "shrink", 0, NULL, 's' },
- { "slabs", 0, NULL, 'l' },
- { "track", 0, NULL, 't'},
- { "validate", 0, NULL, 'v' },
- { "zero", 0, NULL, 'z' },
- { "1ref", 0, NULL, '1'},
+ { "aliases", no_argument, NULL, 'a' },
+ { "activity", no_argument, NULL, 'A' },
+ { "debug", optional_argument, NULL, 'd' },
+ { "display-activity", no_argument, NULL, 'D' },
+ { "empty", no_argument, NULL, 'e' },
+ { "first-alias", no_argument, NULL, 'f' },
+ { "help", no_argument, NULL, 'h' },
+ { "inverted", no_argument, NULL, 'i'},
+ { "numa", no_argument, NULL, 'n' },
+ { "ops", no_argument, NULL, 'o' },
+ { "report", no_argument, NULL, 'r' },
+ { "shrink", no_argument, NULL, 's' },
+ { "slabs", no_argument, NULL, 'l' },
+ { "track", no_argument, NULL, 't'},
+ { "validate", no_argument, NULL, 'v' },
+ { "zero", no_argument, NULL, 'z' },
+ { "1ref", no_argument, NULL, '1'},
{ NULL, 0, NULL, 0 }
};
_
Patches currently in -mm which might be from sergey.senozhatsky@xxxxxxxxx are
zram-keep-the-exact-overcommited-value-in-mem_used_max.patch
mm-zsmalloc-constify-struct-zs_pool-name.patch
zsmalloc-use-preempth-for-in_interrupt.patch
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