[v5,2/2] mempool: distinguish debug counters from cache and pool
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Commit Message
From: Joyce Kong <joyce.kong@arm.com>
If cache is enabled, objects will be retrieved/put from/to cache,
subsequently from/to the common pool. Now the debug stats calculate
the objects retrieved/put from/to cache and pool together, it is
better to distinguish them.
Signed-off-by: Joyce Kong <joyce.kong@arm.com>
Signed-off-by: Dharmik Thakkar <dharmik.thakkar@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
---
lib/mempool/rte_mempool.c | 16 ++++++++++++++++
lib/mempool/rte_mempool.h | 29 ++++++++++++++++++++++-------
2 files changed, 38 insertions(+), 7 deletions(-)
Comments
On Tue, Apr 27, 2021 at 11:01:40AM -0500, Dharmik Thakkar wrote:
> From: Joyce Kong <joyce.kong@arm.com>
>
> If cache is enabled, objects will be retrieved/put from/to cache,
> subsequently from/to the common pool. Now the debug stats calculate
> the objects retrieved/put from/to cache and pool together, it is
> better to distinguish them.
>
> Signed-off-by: Joyce Kong <joyce.kong@arm.com>
> Signed-off-by: Dharmik Thakkar <dharmik.thakkar@arm.com>
> Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
@@ -1244,6 +1244,14 @@ rte_mempool_dump(FILE *f, struct rte_mempool *mp)
for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
sum.put_bulk += mp->stats[lcore_id].put_bulk;
sum.put_objs += mp->stats[lcore_id].put_objs;
+ sum.put_common_pool_bulk +=
+ mp->stats[lcore_id].put_common_pool_bulk;
+ sum.put_common_pool_objs +=
+ mp->stats[lcore_id].put_common_pool_objs;
+ sum.get_common_pool_bulk +=
+ mp->stats[lcore_id].get_common_pool_bulk;
+ sum.get_common_pool_objs +=
+ mp->stats[lcore_id].get_common_pool_objs;
sum.get_success_bulk += mp->stats[lcore_id].get_success_bulk;
sum.get_success_objs += mp->stats[lcore_id].get_success_objs;
sum.get_fail_bulk += mp->stats[lcore_id].get_fail_bulk;
@@ -1254,6 +1262,14 @@ rte_mempool_dump(FILE *f, struct rte_mempool *mp)
fprintf(f, " stats:\n");
fprintf(f, " put_bulk=%"PRIu64"\n", sum.put_bulk);
fprintf(f, " put_objs=%"PRIu64"\n", sum.put_objs);
+ fprintf(f, " put_common_pool_bulk=%"PRIu64"\n",
+ sum.put_common_pool_bulk);
+ fprintf(f, " put_common_pool_objs=%"PRIu64"\n",
+ sum.put_common_pool_objs);
+ fprintf(f, " get_common_pool_bulk=%"PRIu64"\n",
+ sum.get_common_pool_bulk);
+ fprintf(f, " get_common_pool_objs=%"PRIu64"\n",
+ sum.get_common_pool_objs);
fprintf(f, " get_success_bulk=%"PRIu64"\n", sum.get_success_bulk);
fprintf(f, " get_success_objs=%"PRIu64"\n", sum.get_success_objs);
fprintf(f, " get_fail_bulk=%"PRIu64"\n", sum.get_fail_bulk);
@@ -64,14 +64,21 @@ extern "C" {
#ifdef RTE_LIBRTE_MEMPOOL_DEBUG
/**
* A structure that stores the mempool statistics (per-lcore).
+ * Note: Cache stats (put_cache_bulk/objs, get_cache_bulk/objs) are not
+ * captured since they can be calculated from other stats.
+ * For example: put_cache_objs = put_objs - put_common_pool_objs.
*/
struct rte_mempool_debug_stats {
- uint64_t put_bulk; /**< Number of puts. */
- uint64_t put_objs; /**< Number of objects successfully put. */
- uint64_t get_success_bulk; /**< Successful allocation number. */
- uint64_t get_success_objs; /**< Objects successfully allocated. */
- uint64_t get_fail_bulk; /**< Failed allocation number. */
- uint64_t get_fail_objs; /**< Objects that failed to be allocated. */
+ uint64_t put_bulk; /**< Number of puts. */
+ uint64_t put_objs; /**< Number of objects successfully put. */
+ uint64_t put_common_pool_bulk; /**< Number of bulks enqueued in common pool. */
+ uint64_t put_common_pool_objs; /**< Number of objects enqueued in common pool. */
+ uint64_t get_common_pool_bulk; /**< Number of bulks dequeued from common pool. */
+ uint64_t get_common_pool_objs; /**< Number of objects dequeued from common pool. */
+ uint64_t get_success_bulk; /**< Successful allocation number. */
+ uint64_t get_success_objs; /**< Objects successfully allocated. */
+ uint64_t get_fail_bulk; /**< Failed allocation number. */
+ uint64_t get_fail_objs; /**< Objects that failed to be allocated. */
/** Successful allocation number of contiguous blocks. */
uint64_t get_success_blks;
/** Failed allocation number of contiguous blocks. */
@@ -699,10 +706,16 @@ rte_mempool_ops_dequeue_bulk(struct rte_mempool *mp,
void **obj_table, unsigned n)
{
struct rte_mempool_ops *ops;
+ int ret;
rte_mempool_trace_ops_dequeue_bulk(mp, obj_table, n);
ops = rte_mempool_get_ops(mp->ops_index);
- return ops->dequeue(mp, obj_table, n);
+ ret = ops->dequeue(mp, obj_table, n);
+ if (ret == 0) {
+ __MEMPOOL_STAT_ADD(mp, get_common_pool_bulk, 1);
+ __MEMPOOL_STAT_ADD(mp, get_common_pool_objs, n);
+ }
+ return ret;
}
/**
@@ -749,6 +762,8 @@ rte_mempool_ops_enqueue_bulk(struct rte_mempool *mp, void * const *obj_table,
{
struct rte_mempool_ops *ops;
+ __MEMPOOL_STAT_ADD(mp, put_common_pool_bulk, 1);
+ __MEMPOOL_STAT_ADD(mp, put_common_pool_objs, n);
rte_mempool_trace_ops_enqueue_bulk(mp, obj_table, n);
ops = rte_mempool_get_ops(mp->ops_index);
return ops->enqueue(mp, obj_table, n);