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authorEric Dumazet <edumazet@google.com>2012-11-30 10:08:52 +0000
committerDavid S. Miller <davem@davemloft.net>2012-12-01 11:36:37 -0500
commitfd90b29d757827ab12d6669292612308ec249532 (patch)
treeba0a7cbd8520e3e7d4a45ff91e9e1b5ea4850810 /net/ipv4/inet_diag.c
parentabe303dbc22bd16cde6f1a62fc25f63cc254caf7 (diff)
downloadlinux-fd90b29d757827ab12d6669292612308ec249532.tar.gz
tcp: change default tcp hash size
As time passed, available memory increased faster than number of
concurrent tcp sockets.

As a result, a machine with 4GB of ram gets a hash table
with 524288 slots, using 8388608 bytes of memory.

Lets change that by a 16x factor (one slot for 128 KB of ram)

Even if a small machine needs a _lot_ of sockets, tcp lookups are now
very efficient, using one cache line per socket.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/inet_diag.c')
0 files changed, 0 insertions, 0 deletions