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authorEric Dumazet <eric.dumazet@gmail.com>2010-04-19 09:07:33 +0400
committerDavid S. Miller <davem@davemloft.net>2010-04-20 00:20:34 +0400
commit88751275b8e867d756e4f86ae92afe0232de129f (patch)
tree011913d98eb65f5e90981da0275c2f5a07c2bee1 /tools/perf/util/quote.h
parenta03b1a5c95e8bcb07512122995bbf5bd3c39f2b9 (diff)
downloadlinux-88751275b8e867d756e4f86ae92afe0232de129f.tar.xz
rps: shortcut net_rps_action()
net_rps_action() is a bit expensive on NR_CPUS=64..4096 kernels, even if RPS is not active. Tom Herbert used two bitmasks to hold information needed to send IPI, but a single LIFO list seems more appropriate. Move all RPS logic into net_rps_action() to cleanup net_rx_action() code (remove two ifdefs) Move rps_remote_softirq_cpus into softnet_data to share its first cache line, filling an existing hole. In a future patch, we could call net_rps_action() from process_backlog() to make sure we send IPI before handling this cpu backlog. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/util/quote.h')
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