diff options
| author | Song Yoong Siang | 2024-03-03 16:32:24 +0800 |
|---|---|---|
| committer | Daniel Borkmann | 2024-03-04 15:01:59 +0100 |
| commit | 01031fd473059bf69bb6edc6d51d4bd58ad92e50 (patch) | |
| tree | 05d146fce3abfe4cbf39785303e10518b4fd12e5 | |
| parent | 8f79870ec8a9409983ad5981e1b7d599cbf047bd (diff) | |
selftests/bpf: xdp_hw_metadata reduce sleep interval
In current ping-pong design, xdp_hw_metadata will wait until the packet
transmission completely done, then only start to receive the next packet.
The current sleep interval is 10ms, which is unnecessary large. Typically,
a NIC does not need such a long time to transmit a packet. Furthermore,
during this 10ms sleep time, the app is unable to receive incoming packets.
Therefore, this commit reduce sleep interval to 10us, so that
xdp_hw_metadata is able to support periodic packets with shorter interval.
10us * 500 = 5ms should be enough for packet transmission and status
retrieval.
Signed-off-by: Song Yoong Siang <yoong.siang.song@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/bpf/20240303083225.1184165-2-yoong.siang.song@intel.com
| -rw-r--r-- | tools/testing/selftests/bpf/xdp_hw_metadata.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/xdp_hw_metadata.c b/tools/testing/selftests/bpf/xdp_hw_metadata.c index 878d68db0325..bdf5d8180067 100644 --- a/tools/testing/selftests/bpf/xdp_hw_metadata.c +++ b/tools/testing/selftests/bpf/xdp_hw_metadata.c @@ -480,7 +480,7 @@ peek: for (int j = 0; j < 500; j++) { if (complete_tx(xsk, clock_id)) break; - usleep(10*1000); + usleep(10); } } } |