slabinfo: Support printout of the number of fallbacks
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>
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@ -38,7 +38,7 @@ struct slabinfo {
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unsigned long alloc_from_partial, alloc_slab, free_slab, alloc_refill;
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unsigned long cpuslab_flush, deactivate_full, deactivate_empty;
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unsigned long deactivate_to_head, deactivate_to_tail;
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unsigned long deactivate_remote_frees;
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unsigned long deactivate_remote_frees, order_fallback;
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int numa[MAX_NODES];
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int numa_partial[MAX_NODES];
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} slabinfo[MAX_SLABS];
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@ -293,7 +293,7 @@ int line = 0;
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void first_line(void)
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{
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if (show_activity)
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printf("Name Objects Alloc Free %%Fast\n");
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printf("Name Objects Alloc Free %%Fast Fallb O\n");
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else
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printf("Name Objects Objsize Space "
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"Slabs/Part/Cpu O/S O %%Fr %%Ef Flg\n");
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@ -573,11 +573,12 @@ void slabcache(struct slabinfo *s)
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total_alloc = s->alloc_fastpath + s->alloc_slowpath;
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total_free = s->free_fastpath + s->free_slowpath;
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printf("%-21s %8ld %8ld %8ld %3ld %3ld \n",
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printf("%-21s %8ld %10ld %10ld %3ld %3ld %5ld %1d\n",
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s->name, s->objects,
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total_alloc, total_free,
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total_alloc ? (s->alloc_fastpath * 100 / total_alloc) : 0,
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total_free ? (s->free_fastpath * 100 / total_free) : 0);
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total_free ? (s->free_fastpath * 100 / total_free) : 0,
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s->order_fallback, s->order);
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}
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else
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printf("%-21s %8ld %7d %8s %14s %4d %1d %3ld %3ld %s\n",
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@ -1188,6 +1189,7 @@ void read_slab_dir(void)
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slab->deactivate_to_head = get_obj("deactivate_to_head");
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slab->deactivate_to_tail = get_obj("deactivate_to_tail");
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slab->deactivate_remote_frees = get_obj("deactivate_remote_frees");
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slab->order_fallback = get_obj("order_fallback");
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chdir("..");
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if (slab->name[0] == ':')
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alias_targets++;
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