A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 03:01:39 -04:00
Code Issues Projects Releases Packages Wiki Activity

Merge branch 'slub/lockless' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6

Browse source 
* 'slub/lockless' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: (21 commits)
  slub: When allocating a new slab also prep the first object
  slub: disable interrupts in cmpxchg_double_slab when falling back to pagelock
  Avoid duplicate _count variables in page_struct
  Revert "SLUB: Fix build breakage in linux/mm_types.h"
  SLUB: Fix build breakage in linux/mm_types.h
  slub: slabinfo update for cmpxchg handling
  slub: Not necessary to check for empty slab on load_freelist
  slub: fast release on full slab
  slub: Add statistics for the case that the current slab does not match the node
  slub: Get rid of the another_slab label
  slub: Avoid disabling interrupts in free slowpath
  slub: Disable interrupts in free_debug processing
  slub: Invert locking and avoid slab lock
  slub: Rework allocator fastpaths
  slub: Pass kmem_cache struct to lock and freeze slab
  slub: explicit list_lock taking
  slub: Add cmpxchg_double_slab()
  mm: Rearrange struct page
  slub: Move page->frozen handling near where the page->freelist handling occurs
  slub: Do not use frozen page flag but a bit in the page counters
  ...
This commit is contained in:
Linus Torvalds 2011-07-30 08:21:48 -10:00
commit c11abbbaa3
5 changed files with 616 additions and 304 deletions
Download patch file Download diff file Expand all files Collapse all files

57
tools/slub/slabinfo.c
View file

@ -2,8 +2,9 @@
* Slabinfo: Tool to get reports about slabs
*
* (C) 2007 sgi, Christoph Lameter
* (C) 2011 Linux Foundation, Christoph Lameter
*
* Compile by:
* Compile with:
*
* gcc -o slabinfo slabinfo.c
*/
@ -39,6 +40,8 @@ struct slabinfo {
unsigned long cpuslab_flush, deactivate_full, deactivate_empty;
unsigned long deactivate_to_head, deactivate_to_tail;
unsigned long deactivate_remote_frees, order_fallback;
unsigned long cmpxchg_double_cpu_fail, cmpxchg_double_fail;
unsigned long alloc_node_mismatch, deactivate_bypass;
int numa[MAX_NODES];
int numa_partial[MAX_NODES];
} slabinfo[MAX_SLABS];
@ -99,7 +102,7 @@ static void fatal(const char *x, ...)
static void usage(void)
{
printf("slabinfo 5/7/2007. (c) 2007 sgi.\n\n"
printf("slabinfo 4/15/2011. (c) 2007 sgi/(c) 2011 Linux Foundation.\n\n"
"slabinfo [-ahnpvtsz] [-d debugopts] [slab-regexp]\n"
"-a|--aliases Show aliases\n"
"-A|--activity Most active slabs first\n"
@ -293,7 +296,7 @@ int line = 0;
static void first_line(void)
{
if (show_activity)
printf("Name Objects Alloc Free %%Fast Fallb O\n");
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");
@ -379,14 +382,14 @@ static void show_tracking(struct slabinfo *s)
printf("\n%s: Kernel object allocation\n", s->name);
printf("-----------------------------------------------------------------------\n");
if (read_slab_obj(s, "alloc_calls"))
printf(buffer);
printf("%s", buffer);
else
printf("No Data\n");
printf("\n%s: Kernel object freeing\n", s->name);
printf("------------------------------------------------------------------------\n");
if (read_slab_obj(s, "free_calls"))
printf(buffer);
printf("%s", buffer);
else
printf("No Data\n");
@ -400,7 +403,7 @@ static void ops(struct slabinfo *s)
if (read_slab_obj(s, "ops")) {
printf("\n%s: kmem_cache operations\n", s->name);
printf("--------------------------------------------\n");
printf(buffer);
printf("%s", buffer);
} else
printf("\n%s has no kmem_cache operations\n", s->name);
}
@ -462,19 +465,32 @@ static void slab_stats(struct slabinfo *s)
if (s->cpuslab_flush)
printf("Flushes %8lu\n", s->cpuslab_flush);
if (s->alloc_refill)
printf("Refill %8lu\n", s->alloc_refill);
total = s->deactivate_full + s->deactivate_empty +
s->deactivate_to_head + s->deactivate_to_tail;
s->deactivate_to_head + s->deactivate_to_tail + s->deactivate_bypass;
if (total)
printf("Deactivate Full=%lu(%lu%%) Empty=%lu(%lu%%) "
"ToHead=%lu(%lu%%) ToTail=%lu(%lu%%)\n",
s->deactivate_full, (s->deactivate_full * 100) / total,
s->deactivate_empty, (s->deactivate_empty * 100) / total,
s->deactivate_to_head, (s->deactivate_to_head * 100) / total,
if (total) {
printf("\nSlab Deactivation Ocurrences %%\n");
printf("-------------------------------------------------\n");
printf("Slab full %7lu %3lu%%\n",
s->deactivate_full, (s->deactivate_full * 100) / total);
printf("Slab empty %7lu %3lu%%\n",
s->deactivate_empty, (s->deactivate_empty * 100) / total);
printf("Moved to head of partial list %7lu %3lu%%\n",
s->deactivate_to_head, (s->deactivate_to_head * 100) / total);
printf("Moved to tail of partial list %7lu %3lu%%\n",
s->deactivate_to_tail, (s->deactivate_to_tail * 100) / total);
printf("Deactivation bypass %7lu %3lu%%\n",
s->deactivate_bypass, (s->deactivate_bypass * 100) / total);
printf("Refilled from foreign frees %7lu %3lu%%\n",
s->alloc_refill, (s->alloc_refill * 100) / total);
printf("Node mismatch %7lu %3lu%%\n",
s->alloc_node_mismatch, (s->alloc_node_mismatch * 100) / total);
}
if (s->cmpxchg_double_fail || s->cmpxchg_double_cpu_fail)
printf("\nCmpxchg_double Looping\n------------------------\n");
printf("Locked Cmpxchg Double redos %lu\nUnlocked Cmpxchg Double redos %lu\n",
s->cmpxchg_double_fail, s->cmpxchg_double_cpu_fail);
}
static void report(struct slabinfo *s)
@ -573,12 +589,13 @@ static void slabcache(struct slabinfo *s)
total_alloc = s->alloc_fastpath + s->alloc_slowpath;
total_free = s->free_fastpath + s->free_slowpath;
printf("%-21s %8ld %10ld %10ld %3ld %3ld %5ld %1d\n",
printf("%-21s %8ld %10ld %10ld %3ld %3ld %5ld %1d %4ld %4ld\n",
s->name, s->objects,
total_alloc, total_free,
total_alloc ? (s->alloc_fastpath * 100 / total_alloc) : 0,
total_free ? (s->free_fastpath * 100 / total_free) : 0,
s->order_fallback, s->order);
s->order_fallback, s->order, s->cmpxchg_double_fail,
s->cmpxchg_double_cpu_fail);
}
else
printf("%-21s %8ld %7d %8s %14s %4d %1d %3ld %3ld %s\n",
@ -1190,6 +1207,10 @@ static void read_slab_dir(void)
slab->deactivate_to_tail = get_obj("deactivate_to_tail");
slab->deactivate_remote_frees = get_obj("deactivate_remote_frees");
slab->order_fallback = get_obj("order_fallback");
slab->cmpxchg_double_cpu_fail = get_obj("cmpxchg_double_cpu_fail");
slab->cmpxchg_double_fail = get_obj("cmpxchg_double_fail");
slab->alloc_node_mismatch = get_obj("alloc_node_mismatch");
slab->deactivate_bypass = get_obj("deactivate_bypass");
chdir("..");
if (slab->name[0] == ':')
alias_targets++;