D20930.id.diff
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D20930.id.diff
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	Index: head/sys/vm/uma.h
	===================================================================
	--- head/sys/vm/uma.h
	+++ head/sys/vm/uma.h
	@@ -274,6 +274,7 @@
	* NUMA aware Zone. Implements a best
	* effort first-touch policy.
	*/
	+#define UMA_ZONE_MINBUCKET 0x20000 /* Use smallest buckets. */

	/*
	* These flags are shared between the keg and zone. In zones wishing to add
	Index: head/sys/vm/uma_core.c
	===================================================================
	--- head/sys/vm/uma_core.c
	+++ head/sys/vm/uma_core.c
	@@ -209,6 +209,7 @@
	(((sizeof(void ) (n)) - sizeof(struct uma_bucket)) / sizeof(void *))

	#define BUCKET_MAX BUCKET_SIZE(256)
	+#define BUCKET_MIN BUCKET_SIZE(4)

	struct uma_bucket_zone bucket_zones[] = {
	{ NULL, "4 Bucket", BUCKET_SIZE(4), 4096 },
	@@ -1867,9 +1868,12 @@
	KASSERT((arg->flags & (UMA_ZONE_MAXBUCKET \| UMA_ZONE_NOBUCKET)) !=
	(UMA_ZONE_MAXBUCKET \| UMA_ZONE_NOBUCKET),
	("Invalid zone flag combination"));
	- if ((arg->flags & UMA_ZONE_MAXBUCKET) != 0)
	+ if ((arg->flags & UMA_ZONE_MAXBUCKET) != 0) {
	zone->uz_count = BUCKET_MAX;
	- else if ((arg->flags & UMA_ZONE_NOBUCKET) != 0)
	+ } else if ((arg->flags & UMA_ZONE_MINBUCKET) != 0) {
	+ zone->uz_count = BUCKET_MIN;
	+ zone->uz_count_max = BUCKET_MIN;
	+ } else if ((arg->flags & UMA_ZONE_NOBUCKET) != 0)
	zone->uz_count = 0;
	else
	zone->uz_count = bucket_select(zone->uz_size);