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| author | Peter Pan(潘卫平) <panweiping3@gmail.com> | 2011-12-05 21:39:41 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-12-06 13:02:28 -0500 |
| commit | 99b53bdd810611cc178e1a86bc112d8f4f56a1e9 (patch) | |
| tree | 0d663b68aaa3c5e1e7290809183a3031be6c9072 /net | |
| parent | 65e9d805e96c7e6a15c1e3b0c00a842d2249bab8 (diff) | |
| download | linux-99b53bdd810611cc178e1a86bc112d8f4f56a1e9.tar.bz2 | |
ipv4:correct description for tcp_max_syn_backlog
Since commit c5ed63d66f24(tcp: fix three tcp sysctls tuning),
sysctl_max_syn_backlog is determined by tcp_hashinfo->ehash_mask,
and the minimal value is 128, and it will increase in proportion to the
memory of machine.
The original description for tcp_max_syn_backlog and sysctl_max_syn_backlog
are out of date.
Changelog:
V2: update description for sysctl_max_syn_backlog
Signed-off-by: Weiping Pan <panweiping3@gmail.com>
Reviewed-by: Shan Wei <shanwei88@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/request_sock.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/net/core/request_sock.c b/net/core/request_sock.c index 182236b2510a..9b570a6a33c5 100644 --- a/net/core/request_sock.c +++ b/net/core/request_sock.c @@ -26,10 +26,11 @@ * but then some measure against one socket starving all other sockets * would be needed. * - * It was 128 by default. Experiments with real servers show, that + * The minimum value of it is 128. Experiments with real servers show that * it is absolutely not enough even at 100conn/sec. 256 cures most - * of problems. This value is adjusted to 128 for very small machines - * (<=32Mb of memory) and to 1024 on normal or better ones (>=256Mb). + * of problems. + * This value is adjusted to 128 for low memory machines, + * and it will increase in proportion to the memory of machine. * Note : Dont forget somaxconn that may limit backlog too. */ int sysctl_max_syn_backlog = 256; |