| commit | b66e91ccbc34ebd5a2f90f9e1bc1597e2924a500 | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <edumazet@google.com> | Fri May 15 12:39:30 2015 -0700 |
| committer | David S. Miller <davem@davemloft.net> | Sun May 17 22:45:49 2015 -0400 |
| tree | 13db6cdf2a7ff4f841f3ec44b5700a8e9af1b361 | |
| parent | 76dfa6082032b5c179864816fa508879421678eb [diff] |
tcp: halves tcp_mem[] limits Allowing tcp to use ~19% of physical memory is way too much, and allowed bugs to be hidden. Add to this that some drivers use a full page per incoming frame, so real cost can be twice the advertized one. Reduce tcp_mem by 50 % as a first step to sanity. tcp_mem[0,1,2] defaults are now 4.68%, 6.25%, 9.37% of physical memory. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>