Re: [PATCH v3 net-next 2/5] net: tracepoint: replace tcp_set_state tracepoint with inet_sock_set_state tracepoint

On Sat, Dec 30, 2017 at 7:06 PM, Yafang Shao <laoar.s...@gmail.com> wrote: > On Sun, Dec 31, 2017 at 6:33 AM, Brendan Gregg > <brendan.d.gr...@gmail.com> wrote: >> On Tue, Dec 19, 2017 at 7:12 PM, Yafang Shao <laoar.s...@gmail.com> wrote: >>> As sk_stat

Re: [PATCH v3 net-next 2/5] net: tracepoint: replace tcp_set_state tracepoint with inet_sock_set_state tracepoint

On Tue, Dec 19, 2017 at 7:12 PM, Yafang Shao wrote: > As sk_state is a common field for struct sock, so the state > transition tracepoint should not be a TCP specific feature. > Currently it traces all AF_INET state transition, so I rename this > tracepoint to

Re: [Patch net-next v3] tcp: add a tracepoint for tcp retransmission

On Fri, Oct 13, 2017 at 3:09 PM, Alexei Starovoitov <alexei.starovoi...@gmail.com> wrote: > On Fri, Oct 13, 2017 at 01:50:44PM -0700, Brendan Gregg wrote: >> On Fri, Oct 13, 2017 at 1:03 PM, Cong Wang <xiyou.wangc...@gmail.com> wrote: >> > We need a real-time notif

Re: [Patch net-next v3] tcp: add a tracepoint for tcp retransmission

On Fri, Oct 13, 2017 at 1:03 PM, Cong Wang wrote: > We need a real-time notification for tcp retransmission > for monitoring. > > Of course we could use ftrace to dynamically instrument this > kernel function too, however we can't retrieve the connection > information at

Re: [PATCH v2 net-next 0/6] perf, bpf: add support for bpf in sw/hw perf_events

by Peter and Daniel. Thanks Alexei! Tested-by: Brendan Gregg <bgr...@netflix.com> Brendan

Re: [PATCH net-next 0/6] perf, bpf: add support for bpf in sw/hw perf_events

On Mon, Aug 29, 2016 at 5:19 AM, Peter Zijlstra wrote: > > On Fri, Aug 26, 2016 at 07:31:18PM -0700, Alexei Starovoitov wrote: > > Hi Peter, Dave, > > > > this patch set is a follow up to the discussion: > > https://lkml.org/lkml/2016/8/4/304 > > It turned out to be simpler