From 95766fff6b9a78d11fc2d3812dd035381690b55d Mon Sep 17 00:00:00 2001 From: Hideo Aoki Date: Mon, 31 Dec 2007 00:29:24 -0800 Subject: [UDP]: Add memory accounting. Signed-off-by: Takahiro Yasui Signed-off-by: Hideo Aoki Signed-off-by: David S. Miller --- Documentation/networking/ip-sysctl.txt | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'Documentation/networking') diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 6f7872ba1def..17a6e46fbd43 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -446,6 +446,33 @@ tcp_dma_copybreak - INTEGER and CONFIG_NET_DMA is enabled. Default: 4096 +UDP variables: + +udp_mem - vector of 3 INTEGERs: min, pressure, max + Number of pages allowed for queueing by all UDP sockets. + + min: Below this number of pages UDP is not bothered about its + memory appetite. When amount of memory allocated by UDP exceeds + this number, UDP starts to moderate memory usage. + + pressure: This value was introduced to follow format of tcp_mem. + + max: Number of pages allowed for queueing by all UDP sockets. + + Default is calculated at boot time from amount of available memory. + +udp_rmem_min - INTEGER + Minimal size of receive buffer used by UDP sockets in moderation. + Each UDP socket is able to use the size for receiving data, even if + total pages of UDP sockets exceed udp_mem pressure. The unit is byte. + Default: 4096 + +udp_wmem_min - INTEGER + Minimal size of send buffer used by UDP sockets in moderation. + Each UDP socket is able to use the size for sending data, even if + total pages of UDP sockets exceed udp_mem pressure. The unit is byte. + Default: 4096 + CIPSOv4 Variables: cipso_cache_enable - BOOLEAN -- cgit v1.2.3