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Date: Tue, 29 Aug 2017 16:11:52 +0530 From: Akshat Kakkar <akshat.1984@...il.com> To: netdev <netdev@...r.kernel.org> Subject: nflog performance ... 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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