it's the output, not ack coalescing (Re: TSO and FreeBSD vs Linux)

[Adrian Chadd]

Luigi,

Did you ever publish your patches or methodology for doing sampling?



-adrian


On 14 August 2013 21:00, Vijay Singh <vijju.singh at gmail.com> wrote:

> Is that what FLOWTABLE does? Also we need a mechanism to record time spent
> at various layers in the stack. Luigi has used his own methods but we're
> lacking something more generic. At work we have some crude tools that use
> mcount information to indirectly measure costs but they are not reliable
> and only provide partial information.
>
> Sent from my iPhone
>
> On Aug 14, 2013, at 11:11 AM, Adrian Chadd <adrian at freebsd.org> wrote:
>
> > On 14 August 2013 04:47, Lev Serebryakov <lev at freebsd.org> wrote:
> >
> >
> >>  And we should invalidate this info on ARP/route changes, or connection
> >> will be lost in such cases, am I right?.. So, on each such event code
> >> should look into all sockets and check, if routing/ARP information is
> >> still
> >> valid for them. Or we should store lists of sockets in routing and ARP
> >> tables... I don't know, what is worse.
> >
> > .. or per-CPU copies of the ARP table.. ?
> >
> >
> >
> > -adrian
> > _______________________________________________
> > freebsd-net at freebsd.org mailing list
> > http://lists.freebsd.org/mailman/listinfo/freebsd-net
> > To unsubscribe, send any mail to "freebsd-net-unsubscribe at freebsd.org"
>