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slabinfo: Support printout of the number of fallbacks

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Add functionality to slabinfo to print out the number of fallbacks
that have occurred for each slab cache when the -D option is specified.
Also widen the allocation / free field since the numbers became
too big after a week.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
This commit is contained in:
Christoph Lameter
2008-04-29 16:14:46 -07:00
committed by Pekka Enberg
parent 0121c619d0
commit f715e6f15e
1 changed files with 6 additions and 4 deletions
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10
Documentation/vm/slabinfo.c
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@@ -38,7 +38,7 @@ struct slabinfo {
unsigned long alloc_from_partial, alloc_slab, free_slab, alloc_refill; unsigned long alloc_from_partial, alloc_slab, free_slab, alloc_refill;
unsigned long cpuslab_flush, deactivate_full, deactivate_empty; unsigned long cpuslab_flush, deactivate_full, deactivate_empty;
unsigned long deactivate_to_head, deactivate_to_tail; unsigned long deactivate_to_head, deactivate_to_tail;
unsigned long deactivate_remote_frees; unsigned long deactivate_remote_frees, order_fallback;
int numa[MAX_NODES]; int numa[MAX_NODES];
int numa_partial[MAX_NODES]; int numa_partial[MAX_NODES];
} slabinfo[MAX_SLABS]; } slabinfo[MAX_SLABS];
@@ -293,7 +293,7 @@ int line = 0;
void first_line(void) void first_line(void)
{ {
if (show_activity) if (show_activity)
printf("Name Objects Alloc Free %%Fast\n"); printf("Name Objects Alloc Free %%Fast Fallb O\n");
else else
printf("Name Objects Objsize Space " printf("Name Objects Objsize Space "
"Slabs/Part/Cpu O/S O %%Fr %%Ef Flg\n"); "Slabs/Part/Cpu O/S O %%Fr %%Ef Flg\n");
@@ -573,11 +573,12 @@ void slabcache(struct slabinfo *s)
total_alloc = s->alloc_fastpath + s->alloc_slowpath; total_alloc = s->alloc_fastpath + s->alloc_slowpath;
total_free = s->free_fastpath + s->free_slowpath; total_free = s->free_fastpath + s->free_slowpath;
printf("%-21s %8ld %8ld %8ld %3ld %3ld \n", printf("%-21s %8ld %10ld %10ld %3ld %3ld %5ld %1d\n",
s->name, s->objects, s->name, s->objects,
total_alloc, total_free, total_alloc, total_free,
total_alloc ? (s->alloc_fastpath * 100 / total_alloc) : 0, total_alloc ? (s->alloc_fastpath * 100 / total_alloc) : 0,
total_free ? (s->free_fastpath * 100 / total_free) : 0); total_free ? (s->free_fastpath * 100 / total_free) : 0,
s->order_fallback, s->order);
} }
else else
printf("%-21s %8ld %7d %8s %14s %4d %1d %3ld %3ld %s\n", printf("%-21s %8ld %7d %8s %14s %4d %1d %3ld %3ld %s\n",
@@ -1188,6 +1189,7 @@ void read_slab_dir(void)
slab->deactivate_to_head = get_obj("deactivate_to_head"); slab->deactivate_to_head = get_obj("deactivate_to_head");
slab->deactivate_to_tail = get_obj("deactivate_to_tail"); slab->deactivate_to_tail = get_obj("deactivate_to_tail");
slab->deactivate_remote_frees = get_obj("deactivate_remote_frees"); slab->deactivate_remote_frees = get_obj("deactivate_remote_frees");
slab->order_fallback = get_obj("order_fallback");
chdir(".."); chdir("..");
if (slab->name[0] == ':') if (slab->name[0] == ':')
alias_targets++; alias_targets++;