From 78631ceb990ad10ce7f9c6a1f154c2edf0950870 Mon Sep 17 00:00:00 2001
From: Stefano Brivio <sbrivio@redhat.com>
Date: Tue, 5 Oct 2021 19:32:20 +0200
Subject: [PATCH] tcp: Reduce size of socket pools

A large pool helps marginally with CRR latency, but has detrimental
effects on TCP memory pressure.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
---
 tcp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tcp.c b/tcp.c
index 2409b97..d42e9ab 100644
--- a/tcp.c
+++ b/tcp.c
@@ -359,8 +359,8 @@
 #define FIN_TIMEOUT			240000
 #define LAST_ACK_TIMEOUT		240000
 
-#define TCP_SOCK_POOL_SIZE		256
-#define TCP_SOCK_POOL_TSH		128 /* Refill in ns if > x used */
+#define TCP_SOCK_POOL_SIZE		32
+#define TCP_SOCK_POOL_TSH		16 /* Refill in ns if > x used */
 #define TCP_SPLICE_PIPE_POOL_SIZE	256
 #define REFILL_INTERVAL			1000