Junchang Wang a8d764b983 pktgen: adding prefetchw() call ...

We know for sure pktgen is going to write skb->data right after
*_alloc_skb, causing unnecessary cache misses.

Idea is to add a prefetchw() call to prefetch the first cache line
indicated by skb->data. On systems with Adjacent Cache Line Prefetch,
it's probably two cache lines are prefetched.

With this patch, pktgen on Intel SR1625 server with two E5530
quad-core processors and a single ixgbe-based NIC went from 8.63Mpps
to 9.03Mpps, with 4.6% improvement.

Signed-off-by: Junchang Wang <junchangwang@gmail.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2010-12-10 15:36:52 -08:00

..

datagram.c

Fix a typo in datagram.c and sctp/socket.c.

2010-12-06 13:10:11 -08:00

dev_addr_lists.c

net: include linux/proc_fs.h in dev_addr_lists.c

2010-04-07 16:46:36 -07:00

dev.c

net: call dev_queue_xmit_nit() after skb_dst_drop()

2010-12-08 10:39:54 -08:00

drop_monitor.c

drop_monitor: use genl_register_family_with_ops()

2010-07-26 20:59:42 -07:00

dst.c

net/dst: dst_dev_event() called after other notifiers

2010-11-09 12:17:16 -08:00

ethtool.c

net: Fix too optimistic NETIF_F_HW_CSUM features

2010-12-06 12:59:04 -08:00

fib_rules.c

fib_rules: __rcu annotates ctarget

2010-10-27 11:37:32 -07:00

filter.c

filter: use size of fetched data in __load_pointer()

2010-12-09 20:47:04 -08:00

flow.c

net: return operator cleanup

2010-09-23 14:33:39 -07:00

gen_estimator.c

pkt_sched: remov unnecessary bh_disable

2010-09-10 12:47:59 -07:00

gen_stats.c

net/core: EXPORT_SYMBOL cleanups

2010-07-12 12:57:55 -07:00

iovec.c

net: Limit socket I/O iovec total length to INT_MAX.

2010-10-28 11:47:52 -07:00

kmap_skb.h

[PATCH] severing skbuff.h -> highmem.h

2006-12-04 02:00:29 -05:00

link_watch.c

net/core: EXPORT_SYMBOL cleanups

2010-07-12 12:57:55 -07:00

Makefile

net: support time stamping in phy devices.

2010-07-18 19:15:26 -07:00

neighbour.c

net/neighbour: cancel_delayed_work() + flush_scheduled_work() -> cancel_delayed_work_sync()

2010-10-21 04:25:48 -07:00

net_namespace.c

net_ns: add __rcu annotations

2010-10-25 14:18:27 -07:00

net-sysfs.c

net sched: use xps information for qdisc NUMA affinity

2010-12-01 12:47:42 -08:00

net-sysfs.h

xps: Add CONFIG_XPS

2010-11-28 18:24:14 -08:00

net-traces.c

netdev: Add tracepoints to netdev layer

2010-09-07 17:51:33 +02:00

netevent.c

net/core: EXPORT_SYMBOL cleanups

2010-07-12 12:57:55 -07:00

netpoll.c

net: add netif_tx_queue_frozen_or_stopped

2010-11-28 10:47:18 -08:00

pktgen.c

pktgen: adding prefetchw() call

2010-12-10 15:36:52 -08:00

request_sock.c

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

2010-12-08 13:47:38 -08:00

rtnetlink.c

rtnl: make link af-specific updates atomic

2010-11-27 22:56:08 -08:00

scm.c

scm: lower SCM_MAX_FD

2010-11-24 11:16:43 -08:00

skbuff.c

net: don't reallocate skb->head unless the current one hasn't the needed extra size or is shared

2010-12-03 10:59:47 -08:00

sock.c

net: optimize INET input path further

2010-12-09 20:05:58 -08:00

stream.c

net: Fix the condition passed to sk_wait_event()

2010-10-03 20:41:32 -07:00

sysctl_net_core.c

rps: add __rcu annotations

2010-10-25 14:18:27 -07:00

timestamping.c

filter: constify sk_run_filter()

2010-12-08 10:30:34 -08:00

user_dma.c

net/core/user_dma.c: Use frag list abstraction interfaces.

2009-06-09 00:19:10 -07:00

utils.c

net: return operator cleanup

2010-09-23 14:33:39 -07:00