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In some environment, broadcast traffic is suppressed at high rate (i.e. a kind of bandwidth limit setting). When it is applied, TIPC broadcast can still run successfully. However, when it comes to a high load, some packets will be dropped first and TIPC tries to retransmit them but the packet retransmission is intentionally broadcast too, so making things worse and not helpful at all. This commit enables the broadcast retransmission via unicast which only retransmits packets to the specific peer that has really reported a gap i.e. not broadcasting to all nodes in the cluster, so will prevent from being suppressed, and also reduce some overheads on the other peers due to duplicates, finally improve the overall TIPC broadcast performance. Note: the functionality can be turned on/off via the sysctl file: echo 1 > /proc/sys/net/tipc/bc_retruni echo 0 > /proc/sys/net/tipc/bc_retruni Default is '0', i.e. the broadcast retransmission still works as usual. Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Jon Maloy <jmaloy@redhat.com> Signed-off-by: Tuong Lien <tuong.t.lien@dektech.com.au> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| addr.c | ||
| addr.h | ||
| bcast.c | ||
| bcast.h | ||
| bearer.c | ||
| bearer.h | ||
| core.c | ||
| core.h | ||
| crypto.c | ||
| crypto.h | ||
| diag.c | ||
| discover.c | ||
| discover.h | ||
| eth_media.c | ||
| group.c | ||
| group.h | ||
| ib_media.c | ||
| Kconfig | ||
| link.c | ||
| link.h | ||
| Makefile | ||
| monitor.c | ||
| monitor.h | ||
| msg.c | ||
| msg.h | ||
| name_distr.c | ||
| name_distr.h | ||
| name_table.c | ||
| name_table.h | ||
| net.c | ||
| net.h | ||
| netlink_compat.c | ||
| netlink.c | ||
| netlink.h | ||
| node.c | ||
| node.h | ||
| socket.c | ||
| socket.h | ||
| subscr.c | ||
| subscr.h | ||
| sysctl.c | ||
| topsrv.c | ||
| topsrv.h | ||
| trace.c | ||
| trace.h | ||
| udp_media.c | ||
| udp_media.h | ||