AuxXxilium/linux_dsm_epyc7002
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452f299da3
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Thomas Graf 452f299da3 [PKT_SCHED]: Reduce branch mispredictions in pfifo_fast_dequeue 
The current call to __qdisc_dequeue_head leads to a branch
misprediction for every loop iteration, the fact that the
most common priority is 2 makes this even worse.  This issue
has been brought up by Eric Dumazet <dada1@cosmosbay.com>
but unlike his solution which was to manually unroll the loop,
this approach preserves the possibility to increase the number
of bands at compile time. 

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-07-18 13:30:53 -07:00
..
802 [NET]: __be'ify *_type_trans() 2005-07-12 12:08:43 -07:00
8021q [VLAN]: Fix early vlan adding leads to not functional device 2005-07-12 12:13:49 -07:00
appletalk [ATALK] aarp: replace schedule_timeout() with msleep() 2005-06-22 22:11:44 -07:00
atm [NET]: __be'ify *_type_trans() 2005-07-12 12:08:43 -07:00
ax25 [AX25] Introduce ax25_type_trans 2005-04-24 18:53:06 -07:00
bluetooth [NET]: Transform skb_queue_len() binary tests into skb_queue_empty() 2005-07-08 14:57:23 -07:00
bridge [NET]: move config options out to individual protocols 2005-07-11 21:13:56 -07:00
core [NET]: Fix sparse warnings 2005-07-08 14:57:47 -07:00
decnet [NET]: move config options out to individual protocols 2005-07-11 21:13:56 -07:00
econet [NET]: move config options out to individual protocols 2005-07-11 21:13:56 -07:00
ethernet [NET]: __be'ify *_type_trans() 2005-07-12 12:08:43 -07:00
ipv4 [NETFILTER]: Revert nf_reset change 2005-07-12 11:57:52 -07:00
ipv6 [NET]: move config options out to individual protocols 2005-07-11 21:13:56 -07:00
ipx [NET]: move config options out to individual protocols 2005-07-11 21:13:56 -07:00
irda [NET]: Transform skb_queue_len() binary tests into skb_queue_empty() 2005-07-08 14:57:23 -07:00
key [IPSEC]: Add XFRM_STATE_NOPMTUDISC flag 2005-06-20 13:21:43 -07:00
lapb [NET]: move config options out to individual protocols 2005-07-11 21:13:56 -07:00
llc [NET]: Transform skb_queue_len() binary tests into skb_queue_empty() 2005-07-08 14:57:23 -07:00
netlink [NET]: Transform skb_queue_len() binary tests into skb_queue_empty() 2005-07-08 14:57:23 -07:00
netrom Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
packet [NETFILTER]: Revert nf_reset change 2005-07-12 11:57:52 -07:00
rose Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rxrpc [PATCH] Cleanup patch for process freezing 2005-06-25 17:10:13 -07:00
sched [PKT_SCHED]: Reduce branch mispredictions in pfifo_fast_dequeue 2005-07-18 13:30:53 -07:00
sctp [SCTP]: __nocast annotations 2005-07-11 20:57:47 -07:00
sunrpc [PATCH] coverity: sunrpc/xprt task null check 2005-07-07 18:23:47 -07:00
unix [NET]: move config options out to individual protocols 2005-07-11 21:13:56 -07:00
wanrouter [NET]: __be'ify *_type_trans() 2005-07-12 12:08:43 -07:00
x25 [NET]: move config options out to individual protocols 2005-07-11 21:13:56 -07:00
xfrm [NET]: move config options out to individual protocols 2005-07-11 21:13:56 -07:00
compat.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig [NET]: move config options out to individual protocols 2005-07-11 21:13:56 -07:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nonet.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
socket.c [NET]: dont use strlen() but the result from a prior sprintf() 2005-06-22 14:32:51 -07:00
sysctl_net.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
TUNABLE Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00