From: Eric Dumazet <eduma...@google.com> 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 = 10000; /* 10 msec */ > > setsockopt(fd, SOL_TCP, TCP_TX_DELAY, &tx_delay, sizeof(tx_delay)); I'm trying to think about what the implications are for allowing arbitrary users to do this. It allows a user to stuff a TCP cloned SKB in the queues for a certain amount of time, and then multiply this by how big a send window the user can create (this ramp up takes no time, as the TCP_TX_DELAY option can be intentionally set only after the window is maxxed out) and how many TCP flows the user can create. Is this something worth considering?
