Jason Wang 809ecb9bca vhost: cache used event for better performance ... When event index was enabled, we need to fetch used event from userspace memory each time. This userspace fetch (with memory barrier) could be saved sometime when 1) caching used event and 2) if used event is ahead of new and old to new updating does not cross it, we're sure there's no need to notify guest. This will be useful for heavy tx load e.g guest pktgen test with Linux driver shows ~3.5% improvement. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>		2016-12-16 00:12:50 +02:00
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Kconfig	vhost: split out vringh Kconfig	2016-08-02 16:54:28 +03:00
Kconfig.vringh	vhost: split out vringh Kconfig	2016-08-02 16:54:28 +03:00
Makefile	VSOCK: Add Makefile and Kconfig	2016-08-02 02:57:30 +03:00
net.c	locking/core: Remove cpu_relax_lowlatency() users	2016-11-16 10:15:10 +01:00
scsi.c	vhost/scsi: fix reuse of &vq->iov[out] in response	2016-08-23 17:16:57 +03:00
test.c	Merge 4.8-rc5 into char-misc-next	2016-09-05 08:04:07 +02:00
test.h
vhost.c	vhost: cache used event for better performance	2016-12-16 00:12:50 +02:00
vhost.h	vhost: cache used event for better performance	2016-12-16 00:12:50 +02:00
vringh.c	vringh: update for virtio 1.0 APIs	2014-12-15 23:49:28 +02:00
vsock.c	vsock: lookup and setup guest_cid inside vhost_vsock_lock	2016-12-16 00:12:49 +02:00