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Date: Wed, 30 Aug 2017 13:27:57 +0530 From: Akshat Kakkar <akshat.1984@...il.com> To: netdev <netdev@...r.kernel.org> Subject: Re: nflog performance ... Anybody? On Tue, Aug 29, 2017 at 4:11 PM, Akshat Kakkar <akshat.1984@...il.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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