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sched: Make check-spaces happy

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Signed-off-by: David Goulet <dgoulet@torproject.org>
This commit is contained in:
David Goulet 2017-09-14 14:29:52 -04:00
parent 3d2d8d6841
commit ba08f8a4ed
1 changed files with 8 additions and 7 deletions
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15
src/or/scheduler_kist.c
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@ -245,13 +245,14 @@ update_socket_info_impl, (socket_table_ent_t *ent))
if (tcp_space < 0) {
tcp_space = 0;
}
/* Imagine we have filled up tcp_space already for a socket and the scheduler
* isn't going to run again for a while. We should write a little extra to the
* kernel so it has some data to send between scheduling runs if it gets ACKs
* back so it doesn't sit idle. With the suggested sock_buf_size_factor of
* 1.0, a socket can have at most 2*cwnd data in the kernel: 1 cwnd on the
* wire waiting for ACKs and 1 cwnd ready and waiting to be sent when those
* ACKs come. */
/* Imagine we have filled up tcp_space already for a socket and the
* scheduler isn't going to run again for a while. We should write a little
* extra to the kernel so it has some data to send between scheduling runs
* if it gets ACKs back so it doesn't sit idle. With the suggested
* sock_buf_size_factor of 1.0, a socket can have at most 2*cwnd data in the
* kernel: 1 cwnd on the wire waiting for ACKs and 1 cwnd ready and waiting
* to be sent when those ACKs come. */
extra_space =
clamp_double_to_int64((ent->cwnd * ent->mss) * sock_buf_size_factor) -
ent->notsent;