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Commit 59758f44 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by David S. Miller
Browse files

[TCP]: Use read mostly for CUBIC parameters. 



These module parameters should be in the read mostly area to avoid
cache pollution.

Signed-off-by: default avatarStephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 3aef0fd9

net/ipv4/tcp_cubic.c

+10 −10
Original line number Diff line number Diff line
@@ -26,16 +26,16 @@ 
					  */

#define	BICTCP_HZ		10	/* BIC HZ 2^10 = 1024 */



static int fast_convergence = 1;

static int max_increment = 16;

static int beta = 819;		/* = 819/1024 (BICTCP_BETA_SCALE) */

static int initial_ssthresh = 100;

static int bic_scale = 41;

static int tcp_friendliness = 1;



static u32 cube_rtt_scale;

static u32 beta_scale;

static u64 cube_factor;

static int fast_convergence __read_mostly = 1;

static int max_increment __read_mostly = 16;

static int beta __read_mostly = 819;	/* = 819/1024 (BICTCP_BETA_SCALE) */

static int initial_ssthresh __read_mostly = 100;

static int bic_scale __read_mostly = 41;

static int tcp_friendliness __read_mostly = 1;



static u32 cube_rtt_scale __read_mostly;

static u32 beta_scale __read_mostly;

static u64 cube_factor __read_mostly;



/* Note parameters that are used for precomputing scale factors are read-only */

module_param(fast_convergence, int, 0644);