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| author | Santosh Shilimkar <santosh.shilimkar@oracle.com> | 2016-07-09 17:14:02 -0700 |
|---|---|---|
| committer | Santosh Shilimkar <santosh.shilimkar@oracle.com> | 2017-01-02 14:02:51 -0800 |
| commit | 09b2b8f52895addd9bf28dc5ac98ff5cc750cf9a (patch) | |
| tree | 719eb7c249bc7e6f81a2be16bc7163db8f4a749b /net/rds/ib_recv.c | |
| parent | 581d53c91cbf7b31415a9ed5e9a8b89d6af609b3 (diff) | |
| download | linux-09b2b8f52895addd9bf28dc5ac98ff5cc750cf9a.tar.gz linux-09b2b8f52895addd9bf28dc5ac98ff5cc750cf9a.tar.bz2 linux-09b2b8f52895addd9bf28dc5ac98ff5cc750cf9a.zip | |
RDS: IB: add few useful cache stasts
Tracks the ib receive cache total, incoming and frag allocations.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Diffstat (limited to 'net/rds/ib_recv.c')
| -rw-r--r-- | net/rds/ib_recv.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c index 6803b75eb8bd..4b0f12679219 100644 --- a/net/rds/ib_recv.c +++ b/net/rds/ib_recv.c @@ -194,6 +194,8 @@ static void rds_ib_frag_free(struct rds_ib_connection *ic, rdsdebug("frag %p page %p\n", frag, sg_page(&frag->f_sg)); rds_ib_recv_cache_put(&frag->f_cache_entry, &ic->i_cache_frags); + atomic_add(RDS_FRAG_SIZE / SZ_1K, &ic->i_cache_allocs); + rds_ib_stats_add(s_ib_recv_added_to_cache, RDS_FRAG_SIZE); } /* Recycle inc after freeing attached frags */ @@ -261,6 +263,7 @@ static struct rds_ib_incoming *rds_ib_refill_one_inc(struct rds_ib_connection *i atomic_dec(&rds_ib_allocation); return NULL; } + rds_ib_stats_inc(s_ib_rx_total_incs); } INIT_LIST_HEAD(&ibinc->ii_frags); rds_inc_init(&ibinc->ii_inc, ic->conn, ic->conn->c_faddr); @@ -278,6 +281,8 @@ static struct rds_page_frag *rds_ib_refill_one_frag(struct rds_ib_connection *ic cache_item = rds_ib_recv_cache_get(&ic->i_cache_frags); if (cache_item) { frag = container_of(cache_item, struct rds_page_frag, f_cache_entry); + atomic_sub(RDS_FRAG_SIZE / SZ_1K, &ic->i_cache_allocs); + rds_ib_stats_add(s_ib_recv_added_to_cache, RDS_FRAG_SIZE); } else { frag = kmem_cache_alloc(rds_ib_frag_slab, slab_mask); if (!frag) @@ -290,6 +295,7 @@ static struct rds_page_frag *rds_ib_refill_one_frag(struct rds_ib_connection *ic kmem_cache_free(rds_ib_frag_slab, frag); return NULL; } + rds_ib_stats_inc(s_ib_rx_total_frags); } INIT_LIST_HEAD(&frag->f_item); |