From: Zhengchao Shao <shaozhengchao@huawei.com>
To: <bpf@vger.kernel.org>, <netdev@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <ast@kernel.org>,
<daniel@iogearbox.net>, <davem@davemloft.net>, <kuba@kernel.org>,
<hawk@kernel.org>, <john.fastabend@gmail.com>,
<andrii@kernel.org>, <kafai@fb.com>, <songliubraving@fb.com>,
<yhs@fb.com>, <kpsingh@kernel.org>
Cc: <weiyongjun1@huawei.com>, <shaozhengchao@huawei.com>,
<yuehaibing@huawei.com>
Subject: [PATCH bpf-next] samples/bpf: reduce the sampling interval in xdp1_user
Date: Tue, 19 Apr 2022 19:47:46 +0800 [thread overview]
Message-ID: <20220419114746.291613-1-shaozhengchao@huawei.com> (raw)
If interval is 2, and sum - prev[key] = 1, the result = 0. This will
mislead the tester that the port has no traffic right now. So reduce the
sampling interval to 1.
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
---
samples/bpf/xdp1_user.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/samples/bpf/xdp1_user.c b/samples/bpf/xdp1_user.c
index 631f0cabe139..bacebb4b602f 100644
--- a/samples/bpf/xdp1_user.c
+++ b/samples/bpf/xdp1_user.c
@@ -161,7 +161,7 @@ int main(int argc, char **argv)
}
prog_id = info.id;
- poll_stats(map_fd, 2);
+ poll_stats(map_fd, 1);
return 0;
}
--
2.17.1
next reply other threads:[~2022-04-19 11:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-19 11:47 Zhengchao Shao [this message]
2022-04-20 22:10 ` [PATCH bpf-next] samples/bpf: reduce the sampling interval in xdp1_user patchwork-bot+netdevbpf
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