On Wed, Jun 12, 2019 at 11:21 AM David Miller wrote:
>
> From: David Miller
> Date: Wed, 12 Jun 2019 11:03:44 -0700 (PDT)
>
> > Applied to net-next and build testing.
>
> Missing symbol export it seems...
>
> ERROR: "tcp_tx_delay_enabled" [net/ipv6/ipv6.ko] undefined!
> make[1]: *** [scripts/Make
From: David Miller
Date: Wed, 12 Jun 2019 11:03:44 -0700 (PDT)
> Applied to net-next and build testing.
Missing symbol export it seems...
ERROR: "tcp_tx_delay_enabled" [net/ipv6/ipv6.ko] undefined!
make[1]: *** [scripts/Makefile.modpost:91: __modpost] Error 1
From: Eric Dumazet
Date: Mon, 10 Jun 2019 20:03:34 -0700
> Adding delays to TCP flows is crucial for studying behavior
> of TCP stacks, including congestion control modules.
>
> Linux offers netem module, but it has unpractical constraints :
> - Need root access to change qdisc
> - Hard to setup
On Tue, Jun 11, 2019 at 12:16 PM David Miller wrote:
>
> From: Eric Dumazet
> Date: Mon, 10 Jun 2019 20:03:34 -0700
>
> > This patchs adds TCP_TX_DELAY socket option, to set a delay in
> > usec units.
> >
> > unsigned int tx_delay = 1; /* 10 msec */
> >
> > setsockopt(fd, SOL_TCP, TCP_TX_
From: Eric Dumazet
Date: Mon, 10 Jun 2019 20:03:34 -0700
> This patchs adds TCP_TX_DELAY socket option, to set a delay in
> usec units.
>
> unsigned int tx_delay = 1; /* 10 msec */
>
> setsockopt(fd, SOL_TCP, TCP_TX_DELAY, &tx_delay, sizeof(tx_delay));
I'm trying to think about what th