Split statistics from debug, to make mempool statistics available without
the performance cost of continuously validating the cookies in the mempool
elements.
mempool_perf_autotest shows the follwing change in rate_persec.
When enabling mempool debug without this patch:
-28.1 % and -74.0 %, respectively without and with cache.
When enabling mempool stats (but not debug) with this patch:
-5.8 % and -21.2 %, respectively without and with cache.
v2:
* Fix checkpatch warning:
Use C style comments in rte_include.h, not C++ style.
* Do not rename the rte_mempool_debug_stats structure.
Signed-off-by: Morten Brørup <m...@smartsharesystems.com>
---
config/rte_config.h | 2 ++
lib/mempool/rte_mempool.c | 6 +++---
lib/mempool/rte_mempool.h | 6 +++---
3 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/config/rte_config.h b/config/rte_config.h
index ae56a86394..3c4876d434 100644
--- a/config/rte_config.h
+++ b/config/rte_config.h
@@ -47,6 +47,8 @@
/* mempool defines */
#define RTE_MEMPOOL_CACHE_MAX_SIZE 512
+/* RTE_LIBRTE_MEMPOOL_STATS is not set */
+/* RTE_LIBRTE_MEMPOOL_DEBUG is not set */
/* mbuf defines */
#define RTE_MBUF_DEFAULT_MEMPOOL_OPS "ring_mp_mc"
diff --git a/lib/mempool/rte_mempool.c b/lib/mempool/rte_mempool.c
index 21c94a2b9f..62d1ce764e 100644
--- a/lib/mempool/rte_mempool.c
+++ b/lib/mempool/rte_mempool.c
@@ -818,7 +818,7 @@ rte_mempool_create_empty(const char *name, unsigned n,
unsigned elt_size,
RTE_CACHE_LINE_MASK) != 0);
RTE_BUILD_BUG_ON((sizeof(struct rte_mempool_cache) &
RTE_CACHE_LINE_MASK) != 0);
-#ifdef RTE_LIBRTE_MEMPOOL_DEBUG
+#ifdef RTE_LIBRTE_MEMPOOL_STATS
RTE_BUILD_BUG_ON((sizeof(struct rte_mempool_debug_stats) &
RTE_CACHE_LINE_MASK) != 0);
RTE_BUILD_BUG_ON((offsetof(struct rte_mempool, stats) &
@@ -1221,7 +1221,7 @@ rte_mempool_audit(struct rte_mempool *mp)
void
rte_mempool_dump(FILE *f, struct rte_mempool *mp)
{
-#ifdef RTE_LIBRTE_MEMPOOL_DEBUG
+#ifdef RTE_LIBRTE_MEMPOOL_STATS
struct rte_mempool_info info;
struct rte_mempool_debug_stats sum;
unsigned lcore_id;
@@ -1269,7 +1269,7 @@ rte_mempool_dump(FILE *f, struct rte_mempool *mp)
fprintf(f, " common_pool_count=%u\n", common_count);
/* sum and dump statistics */
-#ifdef RTE_LIBRTE_MEMPOOL_DEBUG
+#ifdef RTE_LIBRTE_MEMPOOL_STATS
rte_mempool_ops_get_info(mp, &info);
memset(&sum, 0, sizeof(sum));
for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
diff --git a/lib/mempool/rte_mempool.h b/lib/mempool/rte_mempool.h
index 3725a72951..9c4bf5549f 100644
--- a/lib/mempool/rte_mempool.h
+++ b/lib/mempool/rte_mempool.h
@@ -56,7 +56,7 @@ extern "C" {
#define RTE_MEMPOOL_HEADER_COOKIE2 0xf2eef2eedadd2e55ULL /**< Header cookie.
*/
#define RTE_MEMPOOL_TRAILER_COOKIE 0xadd2e55badbadbadULL /**< Trailer
cookie.*/
-#ifdef RTE_LIBRTE_MEMPOOL_DEBUG
+#ifdef RTE_LIBRTE_MEMPOOL_STATS
/**
* A structure that stores the mempool statistics (per-lcore).
* Note: Cache stats (put_cache_bulk/objs, get_cache_bulk/objs) are not
@@ -237,7 +237,7 @@ struct rte_mempool {
uint32_t nb_mem_chunks; /**< Number of memory chunks */
struct rte_mempool_memhdr_list mem_list; /**< List of memory chunks */
-#ifdef RTE_LIBRTE_MEMPOOL_DEBUG
+#ifdef RTE_LIBRTE_MEMPOOL_STATS
/** Per-lcore statistics. */
struct rte_mempool_debug_stats stats[RTE_MAX_LCORE];
#endif
@@ -302,7 +302,7 @@ struct rte_mempool {
* @param n
* Number to add to the object-oriented statistics.
*/
-#ifdef RTE_LIBRTE_MEMPOOL_DEBUG
+#ifdef RTE_LIBRTE_MEMPOOL_STATS
#define RTE_MEMPOOL_STAT_ADD(mp, name, n) do { \
unsigned __lcore_id = rte_lcore_id(); \
if (__lcore_id < RTE_MAX_LCORE) { \
--
2.17.1
