System can't take more than 5k req /sec

[Norberto Meijome]

Have you ruled out AWS limits? Putting varnish aside for a minute, can you
handle 5k/sec TCP conns with something like nginx +static files.?
On 30/04/2014 4:35 am, "Jason Price" <japrice at gmail.com> wrote:

> (And Jorge: iptables isn't in play at all.  lsmod | grep iptables
> shows nothing.)
>
> On Mon, Apr 28, 2014 at 4:37 PM,  <lnsano at bol.com.br> wrote:
> > Could you print the output for?
> > $ ss -s
> > $ sudo sysctl -a|egrep
> > "ip_local_port_range|tcp_max_tw_buckets|backlog|somaxconn"
>
> [root at XXXXXXXXX ~]# ss -s
> Total: 853 (kernel 6127)
> TCP:   695 (estab 292, closed 94, orphaned 0, synrecv 0, timewait 94/0),
> ports 0
>
> Transport Total     IP        IPv6
> *         6127      -         -
> RAW       0         0         0
> UDP       8         5         3
> TCP       601       598       3
> INET      609       603       6
> FRAG      0         0         0
>
> [root at XXXXXXXXX ~]# sysctl -a|egrep
> "ip_local_port_range|tcp_max_tw_buckets|backlog|somaxconn"
> net.core.netdev_max_backlog = 5000
> net.core.somaxconn = 512
> net.ipv4.ip_local_port_range = 32768    61000
> net.ipv4.tcp_max_syn_backlog = 4096
> net.ipv4.tcp_max_tw_buckets = 131072
>
> This system isn't under super heavy load currently (about 400 req/sec)
> but it has been at max load.
>
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