nflog performance ...

nflog performance ...

[Akshat Kakkar]

I am using ulogd2 to log iptables activity.
However, when using pgsql as output plugin ... performance is very
very sluggish. (~130-150 entries per second)

To enhance performance I am trying

modprobe ipt_ULOG nlbufsiz=65535 flushtimeout=1000

but this gives error : ipt_ULOG module not found.


On the same lines, I tried

modprobe ipt_NFLOG nlbufsiz=65535 flushtimeout=1000
It didnt give any error !!!

But still there is no increase in performance.
Are these values effective?

I am also using  --nflog-threshold 50 in iptables rule.

I am setting buffer_size as
netlink_socket_buffer_size=104857600
netlink_socket_buffer_maxsize=1048576000

When running ulog, it gives message of setting buffer size as
21708600. Though it didnt give any message like
"ulogd_inppkt_NFLOG.c:443 We are losing events, increasing buffer size
to xxxxxx"
but again why it is only setting buffer size as 21708600 though I have
set in config as 104857600?

Re: nflog performance ...

[Akshat Kakkar]

Anybody?

On Tue, Aug 29, 2017 at 4:11 PM, Akshat Kakkar <akshat.1984@gmail.com> wrote:
> I am using ulogd2 to log iptables activity.
> However, when using pgsql as output plugin ... performance is very
> very sluggish. (~130-150 entries per second)
>
> To enhance performance I am trying
>
> modprobe ipt_ULOG nlbufsiz=65535 flushtimeout=1000
>
> but this gives error : ipt_ULOG module not found.
>
>
> On the same lines, I tried
>
> modprobe ipt_NFLOG nlbufsiz=65535 flushtimeout=1000
> It didnt give any error !!!
>
> But still there is no increase in performance.
> Are these values effective?
>
> I am also using  --nflog-threshold 50 in iptables rule.
>
> I am setting buffer_size as
> netlink_socket_buffer_size=104857600
> netlink_socket_buffer_maxsize=1048576000
>
> When running ulog, it gives message of setting buffer size as
> 21708600. Though it didnt give any message like
> "ulogd_inppkt_NFLOG.c:443 We are losing events, increasing buffer size
> to xxxxxx"
> but again why it is only setting buffer size as 21708600 though I have
> set in config as 104857600?

Re: nflog performance ...

[Stephen Hemminger]

On Wed, 30 Aug 2017 13:27:57 +0530
Akshat Kakkar <akshat.1984@gmail.com> wrote:

> Anybody?
> 
> On Tue, Aug 29, 2017 at 4:11 PM, Akshat Kakkar <akshat.1984@gmail.com> wrote:
> > I am using ulogd2 to log iptables activity.
> > However, when using pgsql as output plugin ... performance is very
> > very sluggish. (~130-150 entries per second)
> >
> > To enhance performance I am trying
> >
> > modprobe ipt_ULOG nlbufsiz=65535 flushtimeout=1000
> >
> > but this gives error : ipt_ULOG module not found.
> >
> >
> > On the same lines, I tried
> >
> > modprobe ipt_NFLOG nlbufsiz=65535 flushtimeout=1000
> > It didnt give any error !!!
> >
> > But still there is no increase in performance.
> > Are these values effective?
> >
> > I am also using  --nflog-threshold 50 in iptables rule.
> >
> > I am setting buffer_size as
> > netlink_socket_buffer_size=104857600
> > netlink_socket_buffer_maxsize=1048576000
> >
> > When running ulog, it gives message of setting buffer size as
> > 21708600. Though it didnt give any message like
> > "ulogd_inppkt_NFLOG.c:443 We are losing events, increasing buffer size
> > to xxxxxx"
> > but again why it is only setting buffer size as 21708600 though I have
> > set in config as 104857600?  

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