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authorOndrej Zajicek <santiago@crfreenet.org>2022-07-24 02:15:20 +0200
committerOndrej Zajicek <santiago@crfreenet.org>2022-07-24 02:15:20 +0200
commit534d0a4b44aa193da785ae180475a448f57805e2 (patch)
treebd4aba91e8bc918380ea490ecab93d3c7e775977 /sysdep/cf/README
parent971721c9b50d361e886762f1c7d0392e10f74021 (diff)
KRT: Scan routing tables separetely on linux to avoid congestion
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.
Diffstat (limited to 'sysdep/cf/README')
-rw-r--r--sysdep/cf/README1
1 files changed, 0 insertions, 1 deletions
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