Map the vring to host memory so it can be accessed without the overhead
of the QEMU memory functions.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/virtio-blk.c | 44
1 file changed, 44 insertions(+)
diff --git a/hw/virtio-blk.c
Start with a clean slate, a virtio-blk device that supports virtio
lifecycle operations and configuration but doesn't do any actual I/O.
The I/O is going to happen in a separate optimized data plane thread.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/virtio-blk.c | 496
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/dataplane/vring.h |8 +--
hw/virtio-blk.c | 62 ++
2 files changed, 59 insertions(+), 11 deletions(-)
diff --git a/hw/dataplane/vring.h b/hw/dataplane/vring.h
index
Requests read from the vring will be placed in a queue where they can be
merged as necessary. Once all requests have been read from the vring,
the queue can be submitted.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/dataplane/ioq.h | 104
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/dataplane/vring.h |5 +
1 file changed, 5 insertions(+)
diff --git a/hw/dataplane/vring.h b/hw/dataplane/vring.h
index 3eab4b4..44ef4a9 100644
--- a/hw/dataplane/vring.h
+++ b/hw/dataplane/vring.h
@@ -1,6 +1,11 @@
#ifndef
does not
support Linux AIO fdsync. Work around this by performing fdatasync()
synchronously for now.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/dataplane/ioq.h | 18 -
hw/dataplane/vring.h | 103 +++---
hw/virtio
---
hw/virtio-blk.c |3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index 1616be5..d75c187 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -339,8 +339,7 @@ static void virtio_blk_handle_output(VirtIODevice *vdev,
VirtQueue *vq)
Support 4 GB physical memory accesses.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/virtio-blk.c |7 +++
1 file changed, 7 insertions(+)
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index abd9386..99654f1 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -64,6
Although past users only needed to test and clear event notifiers, it is
useful to be able to set them too.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
event_notifier.c |7 +++
event_notifier.h |1 +
2 files changed, 8 insertions(+)
diff --git a/event_notifier.c b
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/virtio-blk.c | 25 +
1 file changed, 17 insertions(+), 8 deletions(-)
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index 51807b5..8734029 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -215,14
With indirect vring descriptors, one can no longer assume that the
maximum number of requests is VRING_MAX / 2 (outhdr and inhdr). Now a
single indirect descriptor can contain the outhdr and inhdr so max
requests becomes VRING_MAX.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/dataplane/iosched.h | 78
hw/virtio-blk.c|5
2 files changed, 83 insertions(+)
create mode 100644 hw/dataplane/iosched.h
diff --git a/hw/dataplane/iosched.h b/hw/dataplane/iosched.h
new file mode 100644
index
is not defined.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/msix.c |2 --
1 file changed, 2 deletions(-)
diff --git a/hw/msix.c b/hw/msix.c
index 3308604..0ed1013 100644
--- a/hw/msix.c
+++ b/hw/msix.c
@@ -511,12 +511,10 @@ bool msix_try_notify_from_thread(PCIDevice *dev
This patch adds support for the VIRTIO_RING_F_EVENT_IDX feature for
interrupt mitigation. virtio-blk doesn't do anything fancy with it so
we may not see a performance improvement. This patch will allow newer
guest kernels to run successfully.
Signed-off-by: Stefan Hajnoczi stefa
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/virtio-blk.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index 8734029..cff2298 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -131,7 +131,7 @@ static void
Commit 9507e305ec54062fccc88fcf6fccf1898a7e7141 changed the
kvm_set_irq() function to kvm_irqchip_set_irq().
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/msix.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/msix.c b/hw/msix.c
index 0ed1013
This commit adds an I/O scheduler that sorts requests and merges
adjacent requests if they have the same operation type (read/write).
The code is ugly and not very well factored but it does merge
successfully.
---
hw/dataplane/ioq.h |3 +-
hw/dataplane/iosched.h | 51
Khoa Huynh k...@us.ibm.com discovered that request merging is broken.
The merged iocb is not updated to reflect the total number of iovecs and
the offset is also outdated.
This patch fixes request merging.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/virtio-blk.c | 10
---
hw/dataplane/vring.h | 28 +++-
hw/virtio-blk.c | 47 +++
2 files changed, 58 insertions(+), 17 deletions(-)
diff --git a/hw/dataplane/vring.h b/hw/dataplane/vring.h
index 44ef4a9..cdd4d4a 100644
---
Optimize for the MSI-X enabled and vector unmasked case where it is
possible to issue the KVM ioctl() directly instead of using irqfd.
This patch introduces a new virtio binding function which tries to
notify in a thread-safe way. If this is not possible, the function
returns false. Virtio
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
hw/dataplane/event-poll.h | 79 ---
hw/dataplane/ioq.h| 65 +--
hw/dataplane/vring.h |6 +-
hw/virtio-blk.c | 154 +++--
4
Using qemu-thread.h seemed like a nice idea but it has two limitations:
1. QEMU needs to be built with --enable-io-thread
2. qemu-kvm doesn't build with --enable-io-thread
For now just copy the pthread_create() code straight into virtio-blk.c.
Signed-off-by: Stefan Hajnoczi stefa
On Wed, Jul 18, 2012 at 4:40 PM, Michael S. Tsirkin m...@redhat.com wrote:
On Wed, Jul 18, 2012 at 04:07:45PM +0100, Stefan Hajnoczi wrote:
Optimize for the MSI-X enabled and vector unmasked case where it is
possible to issue the KVM ioctl() directly instead of using irqfd.
Why? Is an ioctl
On Wed, Jul 18, 2012 at 7:29 PM, Michael S. Tsirkin m...@redhat.com wrote:
On Wed, Jul 18, 2012 at 04:07:33PM +0100, Stefan Hajnoczi wrote:
Support 4 GB physical memory accesses.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
Need some sane APIs, this is just too scary.
Yes
On Thu, Jul 19, 2012 at 10:14 AM, Stefan Hajnoczi stefa...@gmail.com wrote:
On Wed, Jul 18, 2012 at 7:29 PM, Michael S. Tsirkin m...@redhat.com wrote:
On Wed, Jul 18, 2012 at 04:07:33PM +0100, Stefan Hajnoczi wrote:
Support 4 GB physical memory accesses.
Signed-off-by: Stefan Hajnoczi stefa
On Wed, Jul 18, 2012 at 4:49 PM, Michael S. Tsirkin m...@redhat.com wrote:
On Wed, Jul 18, 2012 at 04:07:27PM +0100, Stefan Hajnoczi wrote:
This series implements a dedicated thread for virtio-blk processing using
Linux
AIO for raw image files only. It is based on qemu-kvm.git a0bc8c3
On Thu, Jul 19, 2012 at 2:09 PM, Michael S. Tsirkin m...@redhat.com wrote:
On Thu, Jul 19, 2012 at 08:05:42AM -0500, Anthony Liguori wrote:
Of course, the million dollar question is why would using AIO in the
kernel be faster than using AIO in userspace?
Actually for me a more important
On Fri, Jul 20, 2012 at 07:08:21AM +, Mao, Junjie wrote:
This patch makes Qemu recognize the PCID feature specified from configuration
or command line options.
Signed-off-by: Junjie Mao junjie@intel.com
---
target-i386/cpu.c |2 +-
1 files changed, 1 insertions(+), 1
nicely reviewable patches that apply against the current
qemu.git/master:
Nicholas Bellinger (1):
virtio-scsi: Set max_target=0 during vhost-scsi operation
Stefan Hajnoczi (8):
notifier: add validity check and notify function
virtio-pci: support host notifiers in TCG mode
virtio
On Wed, Jul 25, 2012 at 4:31 AM, Liu Ping Fan qemul...@gmail.com wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
iohandler/bh/timer may use DeviceState when its refcnt=0,
postpone the reclaimer till they have done with it.
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
On Wed, Jul 25, 2012 at 4:31 AM, Liu Ping Fan qemul...@gmail.com wrote:
From: Liu Ping Fan pingf...@linux.vnet.ibm.com
Signed-off-by: Liu Ping Fan pingf...@linux.vnet.ibm.com
---
hw/e1000.c | 15 +--
1 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/hw/e1000.c
On Wed, Jul 25, 2012 at 4:31 AM, Liu Ping Fan qemul...@gmail.com wrote:
@@ -3396,13 +3420,25 @@ void cpu_physical_memory_rw(target_phys_addr_t addr,
uint8_t *buf,
uint32_t val;
target_phys_addr_t page;
MemoryRegionSection *section;
+Object *bk;
while (len 0) {
if you have any concerns here.
Thanks!
Reported-by: Anthony Liguori aligu...@us.ibm.com
Cc: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
Cc: Michael S. Tsirkin m...@redhat.com
Cc: Paolo Bonzini pbonz...@redhat.com
Cc: Zhi Yong Wu wu...@linux.vnet.ibm.com
Signed-off
On Wed, Jul 25, 2012 at 02:14:50PM -0700, Nicholas A. Bellinger wrote:
On Wed, 2012-07-25 at 12:55 +0100, Stefan Hajnoczi wrote:
On Tue, Jul 24, 2012 at 01:45:24PM -0700, Nicholas A. Bellinger wrote:
On Mon, 2012-07-23 at 18:56 -0700, Greg Kroah-Hartman wrote:
On Tue, Jul 24, 2012 at 01
On Mon, Jul 30, 2012 at 7:22 PM, riegama...@gmail.com wrote:
From: Dunrong Huang riegama...@gmail.com
Add a helper function for fetching max cpus supported by kvm.
Make QEMU exit with an error message if smp_cpus exceeds limit
of VCPU count retrieved by invoking this helper function.
On Mon, Jul 30, 2012 at 7:08 PM, Bernd Schubert
bernd.schub...@itwm.fraunhofer.de wrote:
On 07/30/2012 07:33 PM, Bernd Schubert wrote:
Hello Stefan,
Stefan Hajnoczi stefanha at gmail.com writes:
On Wed, Jan 11, 2012 at 4:18 PM, Bernd Schubert
bernd.schubert at itwm.fraunhofer.de wrote
On Mon, Jul 30, 2012 at 8:34 AM, Juan Quintela quint...@redhat.com wrote:
Please send in any agenda items you are interested in covering.
QEMU 1.2 Test Day
* Let's find -rc bugs and ensure the release is stable
* We've done this in the past and have a wiki template but can
discuss suggestions
On Wed, Aug 1, 2012 at 6:05 PM, Bernd Schubert
bernd.schub...@itwm.fraunhofer.de wrote:
On 07/31/2012 12:23 PM, Stefan Hajnoczi wrote:
On Mon, Jul 30, 2012 at 7:08 PM, Bernd Schubert
I took a quick glance where skb_recv_done is registered at all and traced
it
back to vp_find_vqs
On Thu, Jun 28, 2012 at 2:05 PM, Peter Lieven p...@dlhnet.de wrote:
i debugged my initial problem further and found out that the problem happens
to be that
the main thread is stuck in pause_all_vcpus() on reset or quit commands in
the monitor
if one cpu is stuck in the do-while loop
On Wed, Dec 21, 2011 at 1:00 AM, Minchan Kim minc...@kernel.org wrote:
+static void virtblk_add_buf_wait(struct virtio_blk *vblk,
+ struct virtblk_req *vbr, unsigned long out, unsigned long in)
+{
+ DEFINE_WAIT(wait);
+ bool retry, notify;
+
+ for (;;) {
+
On Wed, Dec 21, 2011 at 1:00 AM, Minchan Kim minc...@kernel.org wrote:
This patch is follow-up of Christohp Hellwig's work
[RFC: -make_request support for virtio-blk].
http://thread.gmane.org/gmane.linux.kernel/1199763
Quote from hch
This patchset allows the virtio-blk driver to support much
On Sun, Jan 1, 2012 at 9:43 AM, Orit Wasserman owass...@redhat.com wrote:
On 12/30/2011 12:39 AM, Anthony Liguori wrote:
On 12/28/2011 07:25 PM, Isaku Yamahata wrote:
Intro
=
This patch series implements postcopy live migration.[1]
As discussed at KVM forum 2011, dedicated character
On Thu, Dec 22, 2011 at 11:41 PM, Minchan Kim minc...@kernel.org wrote:
On Thu, Dec 22, 2011 at 12:57:40PM +, Stefan Hajnoczi wrote:
On Wed, Dec 21, 2011 at 1:00 AM, Minchan Kim minc...@kernel.org wrote:
If you're stumped by the performance perhaps compare blktraces of the
request approach
On Mon, Jan 2, 2012 at 9:28 AM, Dor Laor dl...@redhat.com wrote:
At the end of the day, it's performance testing using various scenarios that
can educate us whether post-copy worth the extra complexity over slowing
down the guest on the source.
True. It's certainly an interesting patch series
On Mon, Jan 02, 2012 at 01:09:40PM +0100, Juan Quintela wrote:
Please send in any agenda items you are interested in covering.
Status of virtio drivers for Windows:
* Unsupported in community today
* Bugs languish on bug tracker/mailing list
* Risking a reputation of not supporting Windows
On Tue, Jan 3, 2012 at 12:15 PM, Dor Laor dl...@redhat.com wrote:
On 01/03/2012 10:33 AM, Stefan Hajnoczi wrote:
On Mon, Jan 02, 2012 at 01:09:40PM +0100, Juan Quintela wrote:
Please send in any agenda items you are interested in covering.
Status of virtio drivers for Windows
On Wed, Jan 4, 2012 at 2:47 AM, Cao,Bing Bu m...@linux.vnet.ibm.com wrote:
On 01/03/2012 09:12 PM, Stefan Hajnoczi wrote:
On Tue, Jan 3, 2012 at 12:15 PM, Dor Laordl...@redhat.com wrote:
On 01/03/2012 10:33 AM, Stefan Hajnoczi wrote:
On Mon, Jan 02, 2012 at 01:09:40PM +0100, Juan Quintela
this guest
userspace SSE instruction in the first place? This host machine lacks
EPT but can't we service the page fault and then retry execution inside
the guest?
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
arch/x86/kvm/emulate.c |9 -
1 files changed, 8 insertions
The unimplemented movdqa (66 0f 7f 07) instruction triggers a bug in
the x86 emulator. The emulator should fail since the instruction is
unimplemented. However the emulator thinks it is succeeding but we
keep re-executing the same instruction over and over. top shows 100%
CPU utilization and
On Sun, Jan 8, 2012 at 10:32 AM, Avi Kivity a...@redhat.com wrote:
On 01/07/2012 12:26 PM, Stefan Hajnoczi wrote:
movdqa %xmm0,(%rdi)
This patch adds movdqa to the emulator but does not implement #GP when
the memory operand is unaligned to 16 bytes. I'm not sure whether
alignment checking
#GP. The emulator
will therefore never meet unaligned movdqa instructions.
Also change read/write to store/load to make it obvious whether
the test transfers to or from memory. Previous usage of read and
write was misleading.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
On Wed, Jan 11, 2012 at 3:24 PM, Bernd Schubert
bernd.schub...@itwm.fraunhofer.de wrote:
Any idea what is going on or how to debug it?
Here are a couple of ideas that would yield more information:
Since the console still works I suggest checking dmesg output inside
the guest. Are there any
On Wed, Jan 11, 2012 at 4:18 PM, Bernd Schubert
bernd.schub...@itwm.fraunhofer.de wrote:
On 01/11/2012 05:04 PM, Stefan Hajnoczi wrote:
Try pinging the host's IP address from inside the guest. Run tcpdump
on the guest's tap interface from the host and observe whether or not
you see any
On Thu, Jan 12, 2012 at 4:38 AM, Liu ping fan kernelf...@gmail.com wrote:
Could anybody give some description about the implement of hyercall in
kvm? Or give some links about it?
Try git grep hypercall arch/x86/kvm.
Take a look at arch/x86/kvm/x86.c kvm_set_msr_common() and
On Fri, Jan 13, 2012 at 7:45 AM, Liu ping fan kernelf...@gmail.com wrote:
On Thu, Jan 12, 2012 at 5:21 PM, Stefan Hajnoczi stefa...@gmail.com wrote:
On Thu, Jan 12, 2012 at 4:38 AM, Liu ping fan kernelf...@gmail.com wrote:
Could anybody give some description about the implement of hyercall
On Mon, Jan 16, 2012 at 9:32 AM, Xiao Guangrong
xiaoguangr...@linux.vnet.ibm.com wrote:
+DESCRIPTION
+---
+You can analyze some crucial events and statistics with this
+'perf kvm-events' command.
This line is very general and does not explain which events/statistics
can be collected
2012/2/1 Avi Kivity a...@redhat.com:
On 02/01/2012 11:08 AM, Takuya Yoshikawa wrote:
What is the status of Stefan's work?
Stefan's on vacation.
Back now. I will try to get back to movdqa soon.
Stefan
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the body of a message to
This year's Google Summer of Code has been announced:
http://www.google-melange.com/gsoc/events/google/gsoc2012
For those who haven't heard of GSoC before, it funds university
students to work on open source projects during the summer.
Organizations, such as QEMU, can participate to attract
is starting to look like wishful thinking,
but the possibility of regressions is obviously zero so I'm still dreaming.
Otherwise, that would be 3.4.
Reviewed-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
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the body of a message
On Fri, Feb 10, 2012 at 10:59 AM, Daniel P. Berrange
berra...@redhat.com wrote:
On Fri, Feb 10, 2012 at 10:30:24AM +, Stefan Hajnoczi wrote:
This year's Google Summer of Code has been announced:
http://www.google-melange.com/gsoc/events/google/gsoc2012
For those who haven't heard of GSoC
On Fri, Feb 10, 2012 at 2:36 PM, Dongsu Park
dongsu.p...@profitbricks.com wrote:
Now I'm running benchmarks with both qemu-kvm 0.14.1 and 1.0.
- Sequential read (Running inside guest)
# fio -name iops -rw=read -size=1G -iodepth 1 \
-filename /dev/vdb -ioengine libaio -direct=1 -bs=4096
On Fri, Feb 17, 2012 at 4:57 AM, Pete Ashdown pashd...@xmission.com wrote:
I've been waiting for some response from the Ubuntu team regarding a bug on
launchpad, but it appears that it isn't being taken seriously:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/745785
This looks
On Fri, Feb 17, 2012 at 3:31 PM, Pete Ashdown pashd...@xmission.com wrote:
On 02/17/2012 04:30 AM, Stefan Hajnoczi wrote:
On Fri, Feb 17, 2012 at 4:57 AM, Pete Ashdown pashd...@xmission.com wrote:
I've been waiting for some response from the Ubuntu team regarding a bug on
launchpad
On Tue, Feb 21, 2012 at 5:42 AM, 夏业添 summer...@gmail.com wrote:
I want to know if there is other way besides network to make two
guests on a same host to communicate with each other.
And when there is an inter-vm communication by virtual network, are
these network packages passing the
On Tue, Feb 21, 2012 at 3:57 PM, Dongsu Park
dongsu.p...@profitbricks.com wrote:
On 13.02.2012 11:57, Stefan Hajnoczi wrote:
On Fri, Feb 10, 2012 at 2:36 PM, Dongsu Park
dongsu.p...@profitbricks.com wrote:
Now I'm running benchmarks with both qemu-kvm 0.14.1 and 1.0.
- Sequential read
On Wed, Feb 22, 2012 at 4:48 PM, Dongsu Park
dongsu.p...@profitbricks.com wrote:
Try turning ioeventfd off for the virtio-blk device:
-device virtio-blk-pci,ioeventfd=off,...
You might see better performance since ramdisk I/O should be very
low-latency. The overhead of using ioeventfd might
On Thu, Feb 23, 2012 at 3:40 PM, Peter Lieven p...@dlh.net wrote:
However, in a virtual machine I have not observed the above slow down to
that extend
while the benefit of zero after free in a virtualisation environment is
obvious:
1) zero pages can easily be merged by ksm or other
On Thu, Feb 23, 2012 at 7:08 PM, peter.lie...@gmail.com p...@dlh.net wrote:
Stefan Hajnoczi stefa...@gmail.com schrieb:
On Thu, Feb 23, 2012 at 3:40 PM, Peter Lieven p...@dlh.net wrote:
However, in a virtual machine I have not observed the above slow down
to
that extend
while the benefit
On Fri, Feb 24, 2012 at 6:41 AM, Stefan Hajnoczi stefa...@gmail.com wrote:
On Thu, Feb 23, 2012 at 7:08 PM, peter.lie...@gmail.com p...@dlh.net wrote:
Stefan Hajnoczi stefa...@gmail.com schrieb:
On Thu, Feb 23, 2012 at 3:40 PM, Peter Lieven p...@dlh.net wrote:
However, in a virtual machine
On Fri, Feb 24, 2012 at 6:53 AM, Stefan Hajnoczi stefa...@gmail.com wrote:
On Fri, Feb 24, 2012 at 6:41 AM, Stefan Hajnoczi stefa...@gmail.com wrote:
On Thu, Feb 23, 2012 at 7:08 PM, peter.lie...@gmail.com p...@dlh.net wrote:
Stefan Hajnoczi stefa...@gmail.com schrieb:
On Thu, Feb 23, 2012
This is a reminder that QEMU will apply for Google Summer of Code 2012 and we
need project ideas and mentors. Libvirt and kvm.ko projects are also welcome!
http://wiki.qemu.org/Google_Summer_of_Code_2012
Please add yourself to the wiki now if you want to mentor a project
this summer. I will
On Fri, Feb 24, 2012 at 10:38 AM, Michal Privoznik mpriv...@redhat.com wrote:
On 24.02.2012 10:19, Stefan Hajnoczi wrote:
Thank you for the opportunity. I was personally thinking about something
libvirt-snmp related. Nowdays, it is difficult to add new elements to
MIB, as some parts of code
On Tue, Feb 28, 2012 at 11:46 AM, Peter Lieven p...@dlh.net wrote:
On 24.02.2012 08:23, Stefan Hajnoczi wrote:
On Fri, Feb 24, 2012 at 6:53 AM, Stefan Hajnoczistefa...@gmail.com
wrote:
On Fri, Feb 24, 2012 at 6:41 AM, Stefan Hajnoczistefa...@gmail.com
wrote:
On Thu, Feb 23, 2012 at 7:08
On Tue, Feb 28, 2012 at 11:50 AM, Germain Maurice
gmaur...@linkfluence.net wrote:
I don't know if someone has already seen my request…
If you're not getting responses it could be because you are using
Proxmox VE, so the kernel and qemu-kvm might have patches. Have you
asked the Proxmox
On Mon, Feb 27, 2012 at 10:06 PM, Anthony Liguori anth...@codemonkey.ws wrote:
On 02/27/2012 03:58 PM, Paolo Bonzini wrote:
Il 27/02/2012 18:21, Eric Blake ha scritto:
Please send in any agenda items you are interested in covering.
Given all the threads on snapshot/mirror/migrate/reopen in
On Tue, Feb 28, 2012 at 2:47 PM, Paolo Bonzini pbonz...@redhat.com wrote:
Il 28/02/2012 15:39, Stefan Hajnoczi ha scritto:
I'm not a fan of transactions or freeze/thaw (if used to atomically
perform other commands).
We should not export low-level block device operations so that
external
On Tue, Feb 28, 2012 at 4:39 PM, Martin Mailand mar...@tuxadero.com wrote:
I could reproduce it and I bisected it down to this commit.
12d4536f7d911b6d87a766ad7300482ea663cea2 is the first bad commit
commit 12d4536f7d911b6d87a766ad7300482ea663cea2
Author: Anthony Liguori aligu...@us.ibm.com
-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
Perhaps qemu_eventfd() can be used in the future instead of an explicit
pipe. Then Linux will do eventfd while other OSes will fall back to
pipes.
Stefan
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On Wed, Oct 05, 2011 at 03:54:05PM -0400, Christoph Hellwig wrote:
Split virtqueue_kick to be able to do the actual notification outside the
lock protecting the virtqueue. This patch was originally done by
Stefan Hajnoczi, but I can't find the original one anymore and had to
recreated it from
On Wed, Oct 12, 2011 at 1:21 PM, benoit ROUSSELLE brousse...@gmail.com wrote:
I am doing some disk io performance testing on the following environment:
Dell AMD R515 with:
- debian6 (2.6.32) on host and guests.
- raid1 mirror on a perc h700
- lvm used to create virtual disks volumes
- virtio
On Thu, Oct 13, 2011 at 05:03:53PM +0200, benoit ROUSSELLE wrote:
On Thu, Oct 13, 2011 at 4:27 PM, Stefan Hajnoczi stefa...@gmail.com wrote:
dd performs buffered I/O by default. That means it just writes to the
page cache and the kernel decides when to write out dirty pages.
So your host
On Mon, Oct 17, 2011 at 11:26 AM, Kevin Wolf kw...@redhat.com wrote:
Am 26.09.2011 09:24, schrieb Zhi Yong Wu:
On Sat, Sep 24, 2011 at 12:19 AM, Kevin Wolf kw...@redhat.com wrote:
Am 08.09.2011 12:11, schrieb Zhi Yong Wu:
Note:
1.) When bps/iops limits are specified to a small value such
On Thu, Oct 20, 2011 at 4:21 AM, Gonzalo Marcote Peña
gonzalomarc...@gmail.com wrote:
Hi.
I have one guest that I created with virt-install comand option 'sparse=true'.
As i want to use now this guest for I/O tasks (DDBB) and i want to
improve performance, I want to convert the disk.img from
On Fri, Oct 21, 2011 at 10:39 PM, Jason Wang jasow...@redhat.com wrote:
diff --git a/hw/virtio-net.c b/hw/virtio-net.c
index 8c2f460..7f844e7 100644
--- a/hw/virtio-net.c
+++ b/hw/virtio-net.c
@@ -95,6 +95,10 @@ static void virtio_net_set_config(VirtIODevice *vdev,
const uint8_t *config)
On Wed, Oct 26, 2011 at 03:19:17PM -0200, Lucas Meneghel Rodrigues wrote:
On 10/26/2011 01:47 PM, Kevin Wolf wrote:
Am 26.10.2011 16:41, schrieb Lucas Meneghel Rodrigues:
Hi folks:
We've captured a regression with floppy disk on recent qemu (and
qemu-kvm, after a code merge). We bisected it
On Mon, Oct 31, 2011 at 1:28 PM, Anthony Liguori aligu...@us.ibm.com wrote:
To make the Test Day more successful, please sign up to test a specific area
on the Test[3] wiki page.
[...]
[3] http://wiki.qemu.org/Planning/1.0/Testing
I just signed up for several block and tracing tests and
On Thu, Nov 3, 2011 at 7:52 AM, Christoph Hellwig h...@infradead.org wrote:
On Thu, Nov 03, 2011 at 06:12:51PM +1030, Rusty Russell wrote:
Based on patch by Christoph for virtio_blk speedup:
Please credit it to Stefan - he also sent a pointer to his original
version in reply to the previous
On Sat, Nov 5, 2011 at 12:52 AM, Darren Hart dvh...@linux.intel.com wrote:
I have a 32b Fedora 15 guest mounting a filesystem from an Ubuntu 11.10
64b host using virtio and 9p. I'm using the mapping security mode
(tried squash as well). While I can create, edit, and delete files, when
I try to
On Mon, Nov 7, 2011 at 10:17 AM, Sasha Levin levinsasha...@gmail.com wrote:
Hi Avi,
Thank you for your comments!
Just one question below:
On Mon, Nov 7, 2011 at 11:26 AM, Avi Kivity a...@redhat.com wrote:
Crashing the guest is fine (not 100% - you can have unprivileged code
managing a
On Mon, Nov 7, 2011 at 12:51 PM, Avi Kivity a...@redhat.com wrote:
On 11/07/2011 02:40 PM, Sasha Levin wrote:
Where does the VNC server, the image formats, etc go? It would be
nice to confine them too.
Regarding image formats, just wondering - was there ever any plan to
merge (at least
On Wed, Nov 9, 2011 at 2:06 AM, qemu-...@buildbot.b1-systems.de wrote:
The Buildbot has detected a new failure on builder default_x86_64_debian_5_0
while building qemu-kvm.
Full details are available at:
http://buildbot.b1-systems.de/qemu-kvm/builders/default_x86_64_debian_5_0/builds/1019
On Thu, Nov 10, 2011 at 2:47 PM, Markus Armbruster arm...@redhat.com wrote:
Pekka Enberg penb...@kernel.org writes:
Hi Anthony,
On Thu, Nov 10, 2011 at 3:43 PM, Anthony Liguori anth...@codemonkey.ws
wrote:
It's not just the qcow2 implementation or even the block layer. This pull
requests
On Tue, Nov 22, 2011 at 2:39 PM, Juan Quintela quint...@redhat.com wrote:
Juan Quintela quint...@redhat.com wrote:
Hi
Please send in any agenda items you are interested in covering.
As there is no topic for today, and Anthony just give us reading we
would cancel today call.
Happy hacking
On Tue, Nov 22, 2011 at 3:00 PM, Stefan Hajnoczi stefa...@gmail.com wrote:
On Tue, Nov 22, 2011 at 2:39 PM, Juan Quintela quint...@redhat.com wrote:
Juan Quintela quint...@redhat.com wrote:
Hi
Please send in any agenda items you are interested in covering.
As there is no topic for today
On Fri, Nov 25, 2011 at 10:34 AM, Simon Wilson si...@simonandkate.net wrote:
I have done a fair bit of analysis with dstat and using dd copies, and file
writes onto the VM's RAID5 slice sit between 35 and 40MBps consistently.
If you want to drill down on the disk I/O performance than removing
On Mon, Dec 5, 2011 at 8:58 AM, Jason Wang jasow...@redhat.com wrote:
This patch adds a simple flow director to tun/tap device. It is just a
page that contains the hash to queue mapping which could be changed by
user-space. The backend (tap/macvtap) would query this table to get
the desired
On Mon, Dec 5, 2011 at 8:59 AM, Jason Wang jasow...@redhat.com wrote:
+static int virtnet_set_fd(struct net_device *dev, u32 pfn)
+{
+ struct virtnet_info *vi = netdev_priv(dev);
+ struct virtio_device *vdev = vi-vdev;
+
+ if (virtio_has_feature(vdev, VIRTIO_NET_F_HOST_FD))
On Tue, Dec 6, 2011 at 6:33 AM, Jason Wang jasow...@redhat.com wrote:
On 12/05/2011 06:55 PM, Stefan Hajnoczi wrote:
On Mon, Dec 5, 2011 at 8:59 AM, Jason Wangjasow...@redhat.com wrote:
+static int virtnet_set_fd(struct net_device *dev, u32 pfn)
+{
+ struct virtnet_info *vi
On Tue, Dec 6, 2011 at 10:21 AM, Jason Wang jasow...@redhat.com wrote:
On 12/06/2011 05:18 PM, Stefan Hajnoczi wrote:
On Tue, Dec 6, 2011 at 6:33 AM, Jason Wangjasow...@redhat.com wrote:
On 12/05/2011 06:55 PM, Stefan Hajnoczi wrote:
On Mon, Dec 5, 2011 at 8:59 AM, Jason Wangjasow
On Wed, Dec 7, 2011 at 3:03 AM, Jason Wang jasow...@redhat.com wrote:
On 12/06/2011 09:15 PM, Stefan Hajnoczi wrote:
On Tue, Dec 6, 2011 at 10:21 AM, Jason Wangjasow...@redhat.com wrote:
On 12/06/2011 05:18 PM, Stefan Hajnoczi wrote:
On Tue, Dec 6, 2011 at 6:33 AM, Jason Wangjasow
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