> On 10 сент. 2015 г., at 19:45, Dmitry Sivachenko <trtrmi...@gmail.com> wrote:
>
> Hello!
>
> I am using fresh FreeBSD-10/stable.
>
> I have a program which establish a TCP connection to server and sends a lot
> of small requests over it.
> I put haproxy load balancer working in TCP mode in the middle, which listens
> some port on localhost.
>
> Under the relatively low network load (20MB/sec, ~100 kpps), netisr process
> starts to consume close to 100% CPU, and does not allow to utilize more
> network bandwidth:
>
> 11 root -72 - 0K 944K CPU27 27 0:34 98.06% intr{swi1:
> netisr 0}
>
> If I do not pass traffic through haproxy but connect directly to remote
> server, netisr process consumes 0% CPU and everything works well.
>
> Is it rather expected or this can be fixed?
>
> Thanks in advance.
Also I want to add that netisr process consume CPU only when TCP client and
haproxy are running on the same host. If I move haproxy to a separate machine,
netisr process does show in top(1) output at all.
So this looks weird at least.
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