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From: Cong Wang <xiyou.wangcong@gmail.com>
To: Linux Kernel Network Developers <netdev@vger.kernel.org>
Cc: Cong Wang <cong.wang@bytedance.com>
Subject: Re: [Patch net-next 00/13] net: add more tracepoints to TCP/IP stack
Date: Thu, 5 Aug 2021 19:22:22 -0700	[thread overview]
Message-ID: <CAM_iQpWJ8+U7ExYC0mq_GWmsFw-2EYJEo6wnfZW_pVALa5KE6g@mail.gmail.com> (raw)
In-Reply-To: <20210805185750.4522-1-xiyou.wangcong@gmail.com>

On Thu, Aug 5, 2021 at 11:57 AM Cong Wang <xiyou.wangcong@gmail.com> wrote:
>
> From: Cong Wang <cong.wang@bytedance.com>
>
> This patchset adds 12 more tracepoints to TCP/IP stack, both
> IPv4 and IPv6. The goal is to trace skb in different layers
> and to measure the latency of each layer.

It looks like we should not trace them at the end of each target function,
instead we have to trace them in the beginning, otherwise the ordering
is reversed in the output.

I will send V2 tomorrow.

Thanks.

      parent reply	other threads:[~2021-08-06  2:22 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-05 18:57 [Patch net-next 00/13] net: add more tracepoints to TCP/IP stack Cong Wang
2021-08-05 18:57 ` [Patch net-next 01/13] net: introduce a new header file include/trace/events/ip.h Cong Wang
2021-08-05 18:57 ` [Patch net-next 02/13] ipv4: introduce tracepoint trace_ip_queue_xmit() Cong Wang
2021-08-06 10:08   ` Eric Dumazet
2021-08-09 20:32     ` Cong Wang
2021-08-11 21:22   ` Martin KaFai Lau
2021-08-11 22:48     ` Cong Wang
2021-08-11 23:08       ` Martin KaFai Lau
2021-08-12  0:37         ` Cong Wang
2021-08-12  5:46           ` Martin KaFai Lau
2021-08-05 18:57 ` [Patch net-next 03/13] tcp: introduce tracepoint trace_tcp_transmit_skb() Cong Wang
2021-08-05 18:57 ` [Patch net-next 04/13] udp: introduce tracepoint trace_udp_send_skb() Cong Wang
2021-08-05 18:57 ` [Patch net-next 05/13] udp: introduce tracepoint trace_udp_v6_send_skb() Cong Wang
2021-08-05 18:57 ` [Patch net-next 06/13] ipv4: introduce tracepoint trace_ip_rcv() Cong Wang
2021-08-05 18:57 ` [Patch net-next 07/13] ipv6: introduce tracepoint trace_ipv6_rcv() Cong Wang
2021-08-05 18:57 ` [Patch net-next 08/13] ipv4: introduce tracepoint trace_ip_local_deliver_finish() Cong Wang
2021-08-05 18:57 ` [Patch net-next 09/13] udp: introduce tracepoint trace_udp_rcv() Cong Wang
2021-08-05 18:57 ` [Patch net-next 10/13] ipv6: introduce tracepoint trace_udpv6_rcv() Cong Wang
2021-08-05 18:57 ` [Patch net-next 11/13] tcp: introduce tracepoint trace_tcp_v4_rcv() Cong Wang
2021-08-05 18:57 ` [Patch net-next 12/13] ipv6: introduce tracepoint trace_tcp_v6_rcv() Cong Wang
2021-08-05 18:57 ` [Patch net-next 13/13] sock: introduce tracepoint trace_sk_data_ready() Cong Wang
2021-08-06  2:22 ` Cong Wang [this message]

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