Paolo Bonzini 948a8ac296 ringtest: poll for new buffers once before updating event index ... Updating the event index has a memory barrier and causes more work on the other side to actually signal the event. It is unnecessary if a new buffer has already appeared on the ring, so poll once before doing the update. The effect of this on the 0.9 ring implementation is pretty much invisible, but on the new-style ring it provides a consistent 3% performance improvement. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>		2016-10-31 00:21:43 +02:00
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accounting
arch	x86/cpufeature: Add AVX512_4VNNIW and AVX512_4FMAPS features	2016-10-19 17:37:13 +02:00
build	tools build: Add feature detection for g++	2016-10-05 19:59:35 -03:00
cgroup
firewire
gpio
hv
iio
include	tools: Synchronize tools/include/uapi/linux/bpf.h	2016-10-05 19:31:48 -03:00
kvm/kvm_stat
laptop
lguest
lib
net
nfsd
objtool	objtool: Fix rare switch jump table pattern detection	2016-10-27 08:20:27 +02:00
pcmcia
perf	perf jit: Fix build issue on Ubuntu	2016-10-17 11:25:34 -03:00
power
scripts
spi
testing	linux-kselftest-4.9-rc1-update	2016-10-14 15:17:12 -07:00
thermal/tmon
time
usb
virtio	ringtest: poll for new buffers once before updating event index	2016-10-31 00:21:43 +02:00
vm
Makefile