From 534d0a4b44aa193da785ae180475a448f57805e2 Mon Sep 17 00:00:00 2001 From: Ondrej Zajicek Date: Sun, 24 Jul 2022 02:15:20 +0200 Subject: KRT: Scan routing tables separetely on linux to avoid congestion MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Remove compile-time sysdep option CONFIG_ALL_TABLES_AT_ONCE, replace it with runtime ability to run either separate table scans or shared scan. On Linux, use separate table scans by default when the netlink socket option NETLINK_GET_STRICT_CHK is available, but retreat to shared scan when it fails. Running separate table scans has advantages where some routing tables are managed independently, e.g. when multiple routing daemons are running on the same machine, as kernel routing table modification performance is significantly reduced when the table is modified while it is being scanned. Thanks Daniel Gröber for the original patch and Toke Høiland-Jørgensen for suggestions. --- sysdep/cf/README | 1 - 1 file changed, 1 deletion(-) (limited to 'sysdep/cf/README') diff --git a/sysdep/cf/README b/sysdep/cf/README index 9a7a4afa..68078bbe 100644 --- a/sysdep/cf/README +++ b/sysdep/cf/README @@ -4,7 +4,6 @@ Available configuration variables: CONFIG_AUTO_ROUTES Device routes are added automagically by the kernel CONFIG_SELF_CONSCIOUS We're able to recognize whether route was installed by us CONFIG_MULTIPLE_TABLES The kernel supports multiple routing tables -CONFIG_ALL_TABLES_AT_ONCE Kernel scanner wants to process all tables at once CONFIG_SINGLE_ROUTE There is only one route per network CONFIG_MC_PROPER_SRC Multicast packets have source address according to socket saddr field -- cgit v1.2.3