The patch titled
Subject: tools/vm/slabinfo: sort slabs by loss
has been removed from the -mm tree. Its filename was
tools-vm-slabinfo-sort-slabs-by-loss.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: sort slabs by loss
Introduce opt "-L|--sort-loss" to sort and output slabs by
loss (waste) in slabcache().
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 | 25 +++++++++++++++++++++----
1 file changed, 21 insertions(+), 4 deletions(-)
diff -puN tools/vm/slabinfo.c~tools-vm-slabinfo-sort-slabs-by-loss tools/vm/slabinfo.c
--- a/tools/vm/slabinfo.c~tools-vm-slabinfo-sort-slabs-by-loss
+++ a/tools/vm/slabinfo.c
@@ -80,6 +80,7 @@ int set_debug = 0;
int show_ops = 0;
int show_activity = 0;
int output_lines = -1;
+int sort_loss;
/* Debug options */
int sanity = 0;
@@ -126,6 +127,7 @@ static void usage(void)
"-z|--zero Include empty slabs\n"
"-1|--1ref Single reference\n"
"-N|--lines=K Show the first K slabs\n"
+ "-L|--Loss Sort by loss\n"
"\nValid debug options (FZPUT may be combined)\n"
"a / A Switch on all debug options (=FZUP)\n"
"- Switch off all debug options\n"
@@ -301,8 +303,9 @@ static void first_line(void)
if (show_activity)
printf("Name Objects Alloc Free %%Fast Fallb O CmpX UL\n");
else
- printf("Name Objects Objsize Space "
- "Slabs/Part/Cpu O/S O %%Fr %%Ef Flg\n");
+ printf("Name Objects Objsize %s "
+ "Slabs/Part/Cpu O/S O %%Fr %%Ef Flg\n",
+ sort_loss ? "Loss" : "Space");
}
/*
@@ -335,6 +338,11 @@ static unsigned long slab_activity(struc
s->alloc_slowpath + s->free_slowpath;
}
+static unsigned long slab_waste(struct slabinfo *s)
+{
+ return slab_size(s) - s->objects * s->object_size;
+}
+
static void slab_numa(struct slabinfo *s, int mode)
{
int node;
@@ -563,7 +571,10 @@ static void slabcache(struct slabinfo *s
if (show_empty && s->slabs)
return;
- store_size(size_str, slab_size(s));
+ if (sort_loss == 0)
+ store_size(size_str, slab_size(s));
+ else
+ store_size(size_str, slab_waste(s));
snprintf(dist_str, 40, "%lu/%lu/%d", s->slabs - s->cpu_slabs,
s->partial, s->cpu_slabs);
@@ -1013,6 +1024,8 @@ static void sort_slabs(void)
result = slab_size(s1) < slab_size(s2);
else if (sort_active)
result = slab_activity(s1) < slab_activity(s2);
+ else if (sort_loss)
+ result = slab_waste(s1) < slab_waste(s2);
else
result = strcasecmp(s1->name, s2->name);
@@ -1291,6 +1304,7 @@ struct option opts[] = {
{ "zero", no_argument, NULL, 'z' },
{ "1ref", no_argument, NULL, '1'},
{ "lines", required_argument, NULL, 'N'},
+ { "Loss", no_argument, NULL, 'L'},
{ NULL, 0, NULL, 0 }
};
@@ -1302,7 +1316,7 @@ int main(int argc, char *argv[])
page_size = getpagesize();
- while ((c = getopt_long(argc, argv, "aAd::Defhil1noprstvzTSN:",
+ while ((c = getopt_long(argc, argv, "aAd::Defhil1noprstvzTSN:L",
opts, NULL)) != -1)
switch (c) {
case '1':
@@ -1371,6 +1385,9 @@ int main(int argc, char *argv[])
output_lines = 1;
}
break;
+ case 'L':
+ sort_loss = 1;
+ break;
default:
fatal("%s: Invalid option '%c'\n", argv[0], optopt);
_
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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