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| author | Zhu Yanjun <yanjun.zhu@oracle.com> | 2019-06-03 07:28:01 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-06-06 03:07:06 +0300 |
| commit | fe3475af3bdf38fac78787ec2fe9eedaf2518188 (patch) | |
| tree | 18e24b6e1102c9b28096416b2f0bdcb7e04c92a2 /net/rds/ib.c | |
| parent | dceebd4c927427669fa285b7d972a8156e2ef233 (diff) | |
| download | linux-fe3475af3bdf38fac78787ec2fe9eedaf2518188.tar.xz | |
net: rds: add per rds connection cache statistics
The variable cache_allocs is to indicate how many frags (KiB) are in one
rds connection frag cache.
The command "rds-info -Iv" will output the rds connection cache
statistics as below:
"
RDS IB Connections:
LocalAddr RemoteAddr Tos SL LocalDev RemoteDev
1.1.1.14 1.1.1.14 58 255 fe80::2:c903:a:7a31 fe80::2:c903:a:7a31
send_wr=256, recv_wr=1024, send_sge=8, rdma_mr_max=4096,
rdma_mr_size=257, cache_allocs=12
"
This means that there are about 12KiB frag in this rds connection frag
cache.
Since rds.h in rds-tools is not related with the kernel rds.h, the change
in kernel rds.h does not affect rds-tools.
rds-info in rds-tools 2.0.5 and 2.0.6 is tested with this commit. It works
well.
Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds/ib.c')
| -rw-r--r-- | net/rds/ib.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/rds/ib.c b/net/rds/ib.c index 2da9b75bad16..f9baf2d5a82a 100644 --- a/net/rds/ib.c +++ b/net/rds/ib.c @@ -318,6 +318,7 @@ static int rds_ib_conn_info_visitor(struct rds_connection *conn, iinfo->max_recv_wr = ic->i_recv_ring.w_nr; iinfo->max_send_sge = rds_ibdev->max_sge; rds_ib_get_mr_info(rds_ibdev, iinfo); + iinfo->cache_allocs = atomic_read(&ic->i_cache_allocs); } return 1; } @@ -351,6 +352,7 @@ static int rds6_ib_conn_info_visitor(struct rds_connection *conn, iinfo6->max_recv_wr = ic->i_recv_ring.w_nr; iinfo6->max_send_sge = rds_ibdev->max_sge; rds6_ib_get_mr_info(rds_ibdev, iinfo6); + iinfo6->cache_allocs = atomic_read(&ic->i_cache_allocs); } return 1; } |