Michael S. Tsirkin
eaae8132ef
vhost-net: select tx zero copy dynamically ...
Even when vhost-net is in zero-copy transmit mode,
net core might still decide to copy the skb later
which is somewhat slower than a copy in user
context: data copy overhead is added to the cost of
page pin/unpin. The result is that enabling tx zero copy
option leads to higher CPU utilization for guest to guest
and guest to host traffic.
To fix this, suppress zero copy tx after a given number of
packets triggered late data copy. Re-enable periodically
to detect workload changes.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-02 21:29:58 -04:00
ACPI: Reorder IPMI driver before any other ACPI drivers
2012-10-16 18:07:12 -07:00
Merge branch 'samsung_platform_data' into staging/for_v3.7
2012-10-05 22:32:05 -03:00
sections: fix section conflicts in drivers/atm
2012-10-06 03:04:40 +09:00
memory-hotplug: update memory block's state and notify userspace
2012-10-09 16:23:02 +09:00
Merge branch 'for-3.7/core' of git://git.kernel.dk/linux-block
2012-10-11 09:04:23 +09:00
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
2012-10-16 18:14:31 -07:00
cpufreq: OMAP: use get_cpu_device() instead of omap_device API
2012-10-08 14:58:56 -07:00
ACPI idle, CPU hotplug: Fix NULL pointer dereference during hotplug
2012-10-08 22:52:54 -04:00
ARM: soc: late platform updates
2012-10-07 20:55:16 +09:00
Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
2012-10-10 11:10:41 +09:00
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2012-10-06 03:16:12 +09:00
firewire: cdev: fix user memory corruption (i386 userland on amd64 kernel)
2012-10-09 18:26:28 +02:00
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2012-10-09 16:08:04 +09:00
nouveau: fix warning on 32-bit build.
2012-10-16 16:40:53 +10:00
Merge branch 'next' into for-linus
2012-10-11 00:45:21 -07:00
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
2012-10-13 11:27:59 +09:00
Merge branch 'i2c-embedded/for-next' of git://git.pengutronix.de/git/wsa/linux
2012-10-11 10:27:51 +09:00
sections: fix section conflicts in drivers/ide
2012-10-06 03:04:41 +09:00
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2012-10-10 19:52:19 +09:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2012-10-13 10:56:03 +09:00
IOMMU Updates for Linux v3.7-rc1
2012-10-08 06:33:44 +09:00
isdn: remove dead code
2012-10-26 03:46:41 -04:00
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
2012-10-10 20:14:07 +09:00
Merge branch 'virtio-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
2012-10-07 21:04:56 +09:00
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2012-10-06 03:16:12 +09:00
md updates for 3.7
2012-10-13 13:22:01 -07:00
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
2012-10-12 12:39:17 +09:00
1. New drivers:
2012-10-07 17:29:24 +09:00
pwm: Changes for v3.7-rc1
2012-10-10 20:15:24 +09:00
mmc: mxs-mmc: Fix merge issue causing build error
2012-10-11 17:21:40 -04:00
mtd: Disable mtdchar mmap on MMU systems
2012-10-09 15:08:42 +01:00
tun: report orphan frags errors to zero copy callback
2012-11-02 21:29:57 -04:00
Devicetree updates for 3.7
2012-10-03 09:44:08 -07:00
mm: use mm->exe_file instead of first VM_EXECUTABLE vma->vm_file
2012-10-09 16:22:18 +09:00
Xtensa patchset for 3.7
2012-10-09 16:11:46 +09:00
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
2012-10-06 03:16:12 +09:00
pinctrl/nomadik: always use the simple irqdomain
2012-10-15 09:09:27 +02:00
Merge branches 'fixes-for-37', 'ec' and 'thermal' into release
2012-10-09 01:47:35 -04:00
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
2012-10-13 11:27:59 +09:00
pps, ptp: Remove dependencies on EXPERIMENTAL
2012-11-01 11:35:17 -04:00
ptp: add an ioctl to compare PHC time with system time
2012-11-01 11:41:34 -04:00
pwm: Changes for v3.7-rc1
2012-10-10 20:15:24 +09:00
rapidio: update for destination ID allocation
2012-10-11 08:50:15 +09:00
MFD bits for the 3.7 merge window.
2012-10-05 12:01:30 +09:00
Merge branch 'virtio-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
2012-10-07 21:04:56 +09:00
Merge branch 'virtio-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
2012-10-07 21:04:56 +09:00
rtc: kconfig: fix RTC_INTF defaults connected to RTC_CLASS
2012-10-11 08:50:16 +09:00
qeth: fix deadlock between recovery and bonding driver
2012-10-16 14:41:46 -04:00
SCSI misc on 20121012
2012-10-13 10:57:01 +09:00
sh: Fix up more fallout from pointless ARM __iomem churn.
2012-10-15 14:08:48 +09:00
Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
2012-10-10 11:10:41 +09:00
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
2012-10-13 11:27:59 +09:00
Merge branch 'for-3.7/core' of git://git.kernel.dk/linux-block
2012-10-11 09:04:23 +09:00
thermal, cpufreq: Fix build when CPU_FREQ_TABLE isn't configured
2012-10-15 14:00:07 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
2012-10-17 12:40:44 -07:00
mm: kill vma flag VM_RESERVED and mm->reserved_vm counter
2012-10-09 16:22:19 +09:00
Add CDC-ACM support for the CX93010-2x UCMxx USB Modem
2012-10-11 15:18:49 -04:00
vfio: Fix PCI INTx disable consistency
2012-10-10 09:10:32 -06:00
vhost-net: select tx zero copy dynamically
2012-11-02 21:29:58 -04:00
fbdev updates for 3.7
2012-10-12 10:21:02 +09:00
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
2012-10-07 21:06:10 +09:00
Feature:
2012-10-12 22:20:28 +09:00
IPMI: Change link order
2012-10-16 18:07:12 -07:00
eaae8132ef