Re: Enabling linux kernel jit compiler from dumpcap?

[Bálint Réczey <balint () balintreczey hu>]

Hi,

I would be happier if the applications I run did not change kernel
configuration without my consent.

Regarding Wireshark I would prefer suggesting "echo 1 >
/proc/sys/net/core/bpf_jit_enable" in the documentation
instead of adding code to enable JIT.
There may be good reasons for not enabling it by default in the Linux kernel.

Cheers,
Balint

2013/8/22 Anders Broman <a.broman () bredband net>:
> Guy Harris skrev 2013-08-22 18:16:
>
> > On Aug 22, 2013, at 4:46 AM, Anders Broman <anders.broman () ericsson com>
> > wrote:
> >
> > > Should we add code to enable the JIT compiler from dumpcap?
> >
> > Should I add code to enable the JIT compiler to libpcap while I'm at it?
> >
> > Should the Linux kernel folks enable it by default?
> >
> > I'm inclined to answer "yes" to all three questions.  I think the FreeBSD
> > JIT compiler is enabled by default.  I'm surprised that the Linux one isn't.
>
> I checked in the dumpcap code. I agree that it might be useful in libpcap
> too, root privileges are required to
> change it I think. and Yes
>
> > I'm surprised that the Linux one isn't
> Regards
> Anders
>
> > ___________________________________________________________________________
> > Sent via:    Wireshark-dev mailing list <wireshark-dev () wireshark org>
> > Archives:    http://www.wireshark.org/lists/wireshark-dev
> > Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev
> >
> > mailto:wireshark-dev-request () wireshark org?subject=unsubscribe
>
> ___________________________________________________________________________
> Sent via:    Wireshark-dev mailing list <wireshark-dev () wireshark org>
> Archives:    http://www.wireshark.org/lists/wireshark-dev
> Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev
>             mailto:wireshark-dev-request () wireshark org?subject=unsubscribe
___________________________________________________________________________
Sent via:    Wireshark-dev mailing list <wireshark-dev () wireshark org>
Archives:    http://www.wireshark.org/lists/wireshark-dev
Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev
             mailto:wireshark-dev-request () wireshark org?subject=unsubscribe