From: Liam Howlett <liam.howlett@oracle.com>
To: "maple-tree@lists.infradead.org" <maple-tree@lists.infradead.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>
Subject: [PATCH v9 04/69] radix tree test suite: add allocation counts and size to kmem_cache
Date: Wed, 4 May 2022 01:07:42 +0000 [thread overview]
Message-ID: <20220504010716.661115-6-Liam.Howlett@oracle.com> (raw)
In-Reply-To: <20220504010716.661115-1-Liam.Howlett@oracle.com>
From: "Liam R. Howlett" <Liam.Howlett@Oracle.com>
Add functions to get the number of allocations, and total allocations from
a kmem_cache. Also add a function to get the allocated size and a way to
zero the total allocations.
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---
tools/testing/radix-tree/linux.c | 28 +++++++++++++++++++++++++++-
1 file changed, 27 insertions(+), 1 deletion(-)
diff --git a/tools/testing/radix-tree/linux.c b/tools/testing/radix-tree/linux.c
index 277aa8b70abc..f20529ae4dbe 100644
--- a/tools/testing/radix-tree/linux.c
+++ b/tools/testing/radix-tree/linux.c
@@ -24,6 +24,8 @@ struct kmem_cache {
void *objs;
void (*ctor)(void *);
unsigned int non_kernel;
+ unsigned long nr_allocated;
+ unsigned long nr_tallocated;
};
void kmem_cache_set_non_kernel(struct kmem_cache *cachep, unsigned int val)
@@ -31,9 +33,28 @@ void kmem_cache_set_non_kernel(struct kmem_cache *cachep, unsigned int val)
cachep->non_kernel = val;
}
+unsigned long kmem_cache_get_alloc(struct kmem_cache *cachep)
+{
+ return cachep->size * cachep->nr_allocated;
+}
+
+unsigned long kmem_cache_nr_allocated(struct kmem_cache *cachep)
+{
+ return cachep->nr_allocated;
+}
+
+unsigned long kmem_cache_nr_tallocated(struct kmem_cache *cachep)
+{
+ return cachep->nr_tallocated;
+}
+
+void kmem_cache_zero_nr_tallocated(struct kmem_cache *cachep)
+{
+ cachep->nr_tallocated = 0;
+}
+
void *kmem_cache_alloc_lru(struct kmem_cache *cachep, struct list_lru *lru,
int gfp)
-
{
void *p;
@@ -64,7 +85,9 @@ void *kmem_cache_alloc_lru(struct kmem_cache *cachep, struct list_lru *lru,
memset(p, 0, cachep->size);
}
+ uatomic_inc(&cachep->nr_allocated);
uatomic_inc(&nr_allocated);
+ uatomic_inc(&cachep->nr_tallocated);
if (kmalloc_verbose)
printf("Allocating %p from slab\n", p);
return p;
@@ -74,6 +97,7 @@ void kmem_cache_free(struct kmem_cache *cachep, void *objp)
{
assert(objp);
uatomic_dec(&nr_allocated);
+ uatomic_dec(&cachep->nr_allocated);
if (kmalloc_verbose)
printf("Freeing %p to slab\n", objp);
pthread_mutex_lock(&cachep->lock);
@@ -99,6 +123,8 @@ kmem_cache_create(const char *name, unsigned int size, unsigned int align,
ret->size = size;
ret->align = align;
ret->nr_objs = 0;
+ ret->nr_allocated = 0;
+ ret->nr_tallocated = 0;
ret->objs = NULL;
ret->ctor = ctor;
ret->non_kernel = 0;
--
2.35.1
next prev parent reply other threads:[~2022-05-04 1:08 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-04 1:07 [PATCH v9 00/69] Maple Tree v9 Liam Howlett
2022-05-04 1:07 ` Liam Howlett
2022-05-04 1:07 ` [PATCH v9 01/69] Maple Tree: add new data structure Liam Howlett
2022-05-04 1:07 ` [PATCH v9 02/69] radix tree test suite: add pr_err define Liam Howlett
2022-05-04 1:07 ` [PATCH v9 03/69] radix tree test suite: add kmem_cache_set_non_kernel() Liam Howlett
2022-05-04 1:07 ` Liam Howlett [this message]
2022-05-04 1:07 ` [PATCH v9 06/69] radix tree test suite: add lockdep_is_held to header Liam Howlett
2022-05-04 1:07 ` [PATCH v9 05/69] radix tree test suite: add support for slab bulk APIs Liam Howlett
2022-05-04 1:07 ` [PATCH v9 07/69] lib/test_maple_tree: add testing for maple tree Liam Howlett
2022-05-04 1:07 ` [PATCH v9 09/69] mm: add VMA iterator Liam Howlett
2022-05-04 1:07 ` [PATCH v9 08/69] mm: start tracking VMAs with maple tree Liam Howlett
2022-05-10 10:37 ` SeongJae Park
2022-05-10 15:51 ` Liam Howlett
2022-05-10 16:58 ` Liam Howlett
2022-05-12 17:01 ` Qian Cai
2022-05-12 17:50 ` Liam Howlett
2022-06-06 12:26 ` Qian Cai
2022-06-06 16:16 ` Liam Howlett
2022-06-06 16:42 ` Qian Cai
2022-05-04 1:07 ` [PATCH v9 10/69] mmap: use the VMA iterator in count_vma_pages_range() Liam Howlett
2022-05-04 1:07 ` [PATCH v9 12/69] mm/mmap: use the maple tree for find_vma_prev() instead of the rbtree Liam Howlett
2022-05-04 1:07 ` [PATCH v9 11/69] mm/mmap: use the maple tree in find_vma() " Liam Howlett
2022-05-04 1:07 ` [PATCH v9 13/69] mm/mmap: use maple tree for unmapped_area{_topdown} Liam Howlett
2022-05-04 1:07 ` [PATCH v9 14/69] kernel/fork: use maple tree for dup_mmap() during forking Liam Howlett
2022-05-06 2:25 ` [PATCH v9 00/69] Maple Tree v9 Andrew Morton
2022-05-09 18:55 ` Liam Howlett
2022-05-09 20:02 ` Andrew Morton
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