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| author |   Eric Dumazet <edumazet@google.com> | 2015-05-15 12:39:30 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-05-17 22:45:49 -0400 |
| commit | b66e91ccbc34ebd5a2f90f9e1bc1597e2924a500 (patch) | |
| tree | 13db6cdf2a7ff4f841f3ec44b5700a8e9af1b361 /net/switchdev/switchdev.c | |
| parent | tcp: allow one skb to be received per socket under memory pressure (diff) | |
| download | wireguard-linux-b66e91ccbc34ebd5a2f90f9e1bc1597e2924a500.tar.xz wireguard-linux-b66e91ccbc34ebd5a2f90f9e1bc1597e2924a500.zip | |
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>
Diffstat (limited to 'net/switchdev/switchdev.c')
0 files changed, 0 insertions, 0 deletions