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 Tue, Jul 17, 2012 at 10:21 AM, Asias He as...@redhat.com wrote:
On 07/17/2012 04:52 PM, Paolo Bonzini wrote:
Il 17/07/2012 10:29, Asias He ha scritto:
So, vhost-blk at least saves ~6 syscalls for us in each request.
Are they really 6? If I/O is coalesced by a factor of 3, for example
On Tue, Jul 17, 2012 at 9:29 AM, Asias He as...@redhat.com wrote:
On 07/16/2012 07:58 PM, Stefan Hajnoczi wrote:
Does the vhost-blk implementation do anything fundamentally different
from userspace? Where is the overhead that userspace virtio-blk has?
Currently, no. But we could play
On Tue, Jul 17, 2012 at 12:26 PM, Michael S. Tsirkin m...@redhat.com wrote:
On Tue, Jul 17, 2012 at 12:11:15PM +0100, Stefan Hajnoczi wrote:
On Tue, Jul 17, 2012 at 10:21 AM, Asias He as...@redhat.com wrote:
On 07/17/2012 04:52 PM, Paolo Bonzini wrote:
Il 17/07/2012 10:29, Asias He ha
On Tue, Jul 17, 2012 at 12:42 PM, Stefan Hajnoczi stefa...@gmail.com wrote:
On Tue, Jul 17, 2012 at 12:26 PM, Michael S. Tsirkin m...@redhat.com wrote:
On Tue, Jul 17, 2012 at 12:11:15PM +0100, Stefan Hajnoczi wrote:
On Tue, Jul 17, 2012 at 10:21 AM, Asias He as...@redhat.com wrote:
On 07/17
On Tue, Jul 17, 2012 at 4:40 AM, Wangpan hzwang...@corp.netease.com wrote:
I have a question as the subject above, the reason I want to know this is
that, if I attach some disks on the guest,
for example, I specified /dev/vdc/dev/vdd(target device) at the cmd line by
using 'virsh
On Tue, Jul 17, 2012 at 12:54 PM, Michael S. Tsirkin m...@redhat.com wrote:
Knowing the answer to that is important before anyone can say whether
this approach is good or not.
Stefan
Why is it?
Because there might be a fix to kvmtool which closes the gap. It
would be embarassing if
On Wed, Jun 27, 2012 at 12:19 PM, Marcelo Tosatti mtosa...@redhat.com wrote:
On Wed, Jun 27, 2012 at 08:41:49AM +0100, Stefan Hajnoczi wrote:
On Wed, Jun 27, 2012 at 8:39 AM, Stefan Hajnoczi stefa...@gmail.com wrote:
On Tue, Jun 26, 2012 at 8:34 PM, Marcelo Tosatti mtosa...@redhat.com
wrote
On Tue, Jun 26, 2012 at 8:34 PM, Marcelo Tosatti mtosa...@redhat.com wrote:
On Sat, Jun 23, 2012 at 12:55:49AM +0200, Jan Kiszka wrote:
net.txt
iothread flow
=
1) Skip-work-if-device-locked
select(tap fd ready)
tap_send
if (trylock(TAPState-NetClientState-dev))
On Wed, Jun 27, 2012 at 8:39 AM, Stefan Hajnoczi stefa...@gmail.com wrote:
On Tue, Jun 26, 2012 at 8:34 PM, Marcelo Tosatti mtosa...@redhat.com wrote:
On Sat, Jun 23, 2012 at 12:55:49AM +0200, Jan Kiszka wrote:
net.txt
iothread flow
=
1) Skip-work-if-device-locked
On Sat, Jun 23, 2012 at 7:08 AM, Emmanuel Noobadmin
centos.ad...@gmail.com wrote:
On 6/22/12, Stefan Hajnoczi stefa...@gmail.com wrote:
Thanks for investigating and sharing the information you've found.
It's archived on the list so anyone who hits it in the future or wants
to reproduce it can
On Thu, Jun 21, 2012 at 2:49 PM, Emmanuel Noobadmin
centos.ad...@gmail.com wrote:
On 6/20/12, Stefan Hajnoczi stefa...@gmail.com wrote:
Anyway, once you've tried qemu.git/master we'll know whether the bug
still exists and with all the info you've shared maybe Gerd (USB
maintainer) will know
On Wed, Jun 20, 2012 at 10:40 AM, Emmanuel Noobadmin
centos.ad...@gmail.com wrote:
On 6/18/12, Stefan Hajnoczi stefa...@gmail.com wrote:
I believe the call is coming from hw/usb/host-linux.c:async_complete()
but am not using the same source tree as your qemu-kvm so I could be
off. The code
On Tue, Jun 19, 2012 at 5:24 AM, Asias He as...@redhat.com wrote:
On 06/18/2012 06:58 PM, Stefan Hajnoczi wrote:
As long as the latency is decreasing that's good. But It's worth
keeping in mind that these percentages are probably wildly different
on real storage devices and/or qemu-kvm
On Sat, Jun 16, 2012 at 6:16 AM, Emmanuel Noobadmin
centos.ad...@gmail.com wrote:
On 6/13/12, Stefan Hajnoczi stefa...@gmail.com wrote:
Since system time is a large chunk you could use strace -f -p $(pgrep
qemu-kvm) or other system call tracing tools to see what the qemu-kvm
process is doing
On Mon, Jun 18, 2012 at 7:53 AM, Asias He as...@redhat.com wrote:
Fio test shows it gives, 28%, 24%, 21%, 16% IOPS boost and 32%, 17%, 21%, 16%
latency improvement for sequential read/write, random read/write respectively.
Sounds great. What storage configuration did you use (single spinning
On Mon, Jun 18, 2012 at 7:53 AM, Asias He as...@redhat.com wrote:
+static void virtblk_add_buf_wait(struct virtio_blk *vblk,
+ struct virtblk_req *vbr,
+ unsigned long out,
+ unsigned long in)
+{
+
On Mon, Jun 18, 2012 at 11:21 AM, Michael S. Tsirkin m...@redhat.com wrote:
On Mon, Jun 18, 2012 at 02:53:10PM +0800, Asias He wrote:
+static void virtblk_make_request(struct request_queue *q, struct bio *bio)
+{
+ struct virtio_blk *vblk = q-queuedata;
+ unsigned int num, out = 0, in
On Mon, Jun 18, 2012 at 10:39 AM, Asias He as...@redhat.com wrote:
On 06/18/2012 05:14 PM, Stefan Hajnoczi wrote:
On Mon, Jun 18, 2012 at 7:53 AM, Asias He as...@redhat.com wrote:
Fio test shows it gives, 28%, 24%, 21%, 16% IOPS boost and 32%, 17%, 21%,
16%
latency improvement
On Fri, Jun 15, 2012 at 5:36 AM, Alexey Kardashevskiy a...@ozlabs.ru wrote:
On 14/06/12 23:18, Stefan Hajnoczi wrote:
On Thu, Jun 14, 2012 at 02:41:40PM +1000, Alexey Kardashevskiy wrote:
It is convenient for debug to be able to switch on/off some events easily.
The only possibility now
On Thu, Jun 14, 2012 at 02:41:40PM +1000, Alexey Kardashevskiy wrote:
It is convenient for debug to be able to switch on/off some events easily.
The only possibility now is to remove event name from the file completely
and type it again when we want it back.
The patch adds '#' symbol
On Wed, Jun 13, 2012 at 8:23 AM, Emmanuel Noobadmin
centos.ad...@gmail.com wrote:
On 6/12/12, Stefan Hajnoczi stefa...@gmail.com wrote:
Further tests done on the following set only
qemu-kvm-0.12.1.2-2.209.el6_2.4.x86_64
on SLES 6, 2.6.32-220.7.1.el.x86_64 (Intel 82801JI ICH10)
1. VMM add
On Tue, Jun 12, 2012 at 6:02 AM, Emmanuel Noobadmin
centos.ad...@gmail.com wrote:
After removing a USB flash drive using virtual machine manager, I
notice that the core assigned to the VM guest goes up to 100% load.
Within the guest itself, there is no significant activity.
This also prompted
On Wed, Jun 6, 2012 at 3:17 AM, Ren, Yongjie yongjie@intel.com wrote:
-Original Message-
From: Kevin Wolf [mailto:kw...@redhat.com]
Sent: Monday, June 04, 2012 9:51 PM
To: Ren, Yongjie
Cc: Marcelo Tosatti; Avi Kivity; kvm@vger.kernel.org; Liu, RongrongX
Subject: Re: Biweekly KVM
On Mon, Jun 4, 2012 at 12:15 PM, Michael S. Tsirkin m...@redhat.com wrote:
On Fri, Jun 01, 2012 at 10:13:06AM +0100, Stefan Hajnoczi wrote:
Other block drivers (cciss, rbd, nbd) use spin_unlock_irq() so I followed
that.
To me this seems wrong: blk_run_queue() uses spin_lock_irqsave() but we
On Mon, Jun 4, 2012 at 12:11 PM, Michael S. Tsirkin m...@redhat.com wrote:
On Fri, Jun 01, 2012 at 10:13:06AM +0100, Stefan Hajnoczi wrote:
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 774c31d..d674977 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block
On Mon, Jun 04, 2012 at 11:27:39AM +0930, Rusty Russell wrote:
On Wed, 30 May 2012 15:39:05 +0200, Christian Borntraeger
borntrae...@de.ibm.com wrote:
On 30/05/12 15:19, Stefan Hajnoczi wrote:
Holding the vblk-lock across kick causes poor scalability in SMP
guests. If one CPU is doing
On Fri, Jun 1, 2012 at 5:38 AM, Asias He as...@redhat.com wrote:
On 05/30/2012 09:19 PM, Stefan Hajnoczi wrote:
Could you use vblk-disk-queue-queue_lock to reference the lock so that
this patch will work on top of this one:
virtio-blk: Use block layer provided spinlock
Absolutely. I'll
group_reporting
norandommap
ioscheduler=noop
thread
bs=512
size=4MB
direct=1
filename=/dev/vdb
numjobs=256
ioengine=aio
iodepth=64
loops=3
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
Other block drivers (cciss, rbd, nbd) use spin_unlock_irq() so I followed that.
To me this seems
-
[global]
exec_prerun=echo 3 /proc/sys/vm/drop_caches
group_reporting
norandommap
ioscheduler=noop
thread
bs=512
size=4MB
direct=1
filename=/dev/vdb
numjobs=256
ioengine=aio
iodepth=64
loops=3
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
drivers
On Mon, May 28, 2012 at 4:18 PM, bugzilla-dae...@bugzilla.kernel.org wrote:
When I am doing a recursive grep on my Clearcase view using a 3rd party
program
called Windows Grep. On every run, the VM would crash (windows kernel crash
where the cause is reported as unknown by Microsoft) up
On Fri, May 25, 2012 at 10:56:28AM -0300, Luiz Capitulino wrote:
On Fri, 25 May 2012 15:47:28 +0200
Paolo Bonzini pbonz...@redhat.com wrote:
Il 25/05/2012 15:43, Luiz Capitulino ha scritto:
Yeah, VDE probably includes something like an hub. But then we could
drop even -net socket,
On Sat, May 26, 2012 at 11:23 AM, Erik Brakkee e...@brakkee.org wrote:
I have done some more experiments and it does work when using a Centos 6.2
guest. Therefore, it is most likely a compatibility issues between the guest
and host virtio implementation.
I read somewhere there is some sort of
On Thu, May 24, 2012 at 05:53:21PM -0300, Luiz Capitulino wrote:
On Fri, 25 May 2012 01:59:06 +0800
zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
The patchset implements network hub stead of vlan. The main work was done
by stefan, and i rebased it to latest
On Fri, May 25, 2012 at 12:18 PM, Markus Armbruster arm...@redhat.com wrote:
Stefan Hajnoczi stefa...@linux.vnet.ibm.com writes:
On Thu, May 24, 2012 at 05:53:21PM -0300, Luiz Capitulino wrote:
On Fri, 25 May 2012 01:59:06 +0800
zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu
On Fri, May 25, 2012 at 06:52:14PM +0800, zwu.ker...@gmail.com wrote:
@@ -59,16 +60,16 @@ static ssize_t net_hub_receive_iov(NetHub *hub,
NetHubPort *source_port,
const struct iovec *iov, int iovcnt)
{
NetHubPort *port;
-ssize_t ret = 0;
+
On Mon, May 7, 2012 at 3:30 PM, Anthony Liguori anth...@codemonkey.ws wrote:
On 05/06/2012 09:39 AM, Avi Kivity wrote:
On 05/06/2012 05:35 PM, Anthony Liguori wrote:
So what's really the use case here? Would an IPMI - libvirt bridge get you
what you need? I really think that's the best path
On Mon, Apr 16, 2012 at 9:51 AM, Ron Edison r...@idthq.com wrote:
I would be very interested in how to ensure the guests are sending flushes.
I'm unfamiliar with the example you gave, where is that configured?
mount -o barrier=1 /dev/sda /mnt is a mount option for ext3 and ext4
file systems.
On Sun, Apr 15, 2012 at 5:16 AM, Ron Edison r...@idthq.com wrote:
The server is a Dell R710 with an H700 controller with 1gb of nvcache.
Writeback cache is enabled on the controller. There is a mix of linux and
windows guests, some with qcow2 format vdisks and others with raw format
vdisks.
On Wed, Apr 11, 2012 at 5:52 PM, Michael Baysek mbay...@liquidweb.com wrote:
I am purposefully not using O_DIRECT since most workloads will not be using
it, although I did notice better performance when I did use it. I did
already identify the page cache as a hinderance as well.
If you do not
On Tue, Apr 10, 2012 at 6:25 PM, Michael Baysek mbay...@liquidweb.com wrote:
Well, I'm trying to determine which I/O method currently has the very least
performance overhead and gives the best performance for both reads and writes.
I am doing my testing by putting the entire guest onto a
On Tue, Apr 10, 2012 at 4:47 AM, Steven wangwangk...@gmail.com wrote:
I found this post
http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/89334
So the current block driver seems completely emulated by the qemu driver.
That's right: qemu/hw/virtio-blk.c
Stefan
--
To unsubscribe from
On Tue, Apr 10, 2012 at 3:58 AM, Jason Wang jasow...@redhat.com wrote:
To help in vhost analyzing, the following series adding basic tracepoints to
vhost. Operations of both virtqueues and vhost works were traced in current
implementation, net code were untouched. A top-like satistics
On Sat, Apr 7, 2012 at 6:18 AM, R 1989012...@gmail.com wrote:
I try to use the x86_emulate_instruction() function.
But it seems like that it fails to emulate some instruction.
My program gets stuck in somewhere. It keeps emulating
one instructions.
On Mon, Apr 9, 2012 at 11:59 PM, Michael Baysek mbay...@liquidweb.com wrote:
Hi all. I'm interested in any developments on the vhost-blk in kernel
accelerator for disk i/o.
I had seen a patchset on LKML https://lkml.org/lkml/2011/7/28/175 but that is
rather old. Are there any newer
On Tue, Apr 10, 2012 at 1:42 PM, Michael S. Tsirkin m...@redhat.com wrote:
On Tue, Apr 10, 2012 at 12:40:50PM +0100, Stefan Hajnoczi wrote:
On Tue, Apr 10, 2012 at 3:58 AM, Jason Wang jasow...@redhat.com wrote:
To help in vhost analyzing, the following series adding basic tracepoints
On Sat, Mar 31, 2012 at 11:22 AM, Asias He asias.he...@gmail.com wrote:
Hi, Stefan
On Fri, Mar 30, 2012 at 6:14 PM, Stefan Hajnoczi stefa...@gmail.com wrote:
On Fri, Mar 30, 2012 at 4:24 AM, Asias He as...@redhat.com wrote:
Benchmark shows small performance improvement on fusion io device
. It's a bit scary that this
unused list has an impact...I'm sure we have worse things elsewhere in
the KVM storage code path.
Reviewed-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
--
To unsubscribe from this list: send the line unsubscribe kvm in
the body of a message to majord...@vger.kernel.org
On Tue, Mar 27, 2012 at 6:56 AM, zwu.ker...@gmail.com wrote:
From: Zhi Yong Wu wu...@linux.vnet.ibm.com
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
Signed-off-by: Zhi Yong Wu wu...@linux.vnet.ibm.com
---
block.c | 6 ++
1 files changed, 6 insertions(+), 0 deletions
On Fri, Mar 23, 2012 at 11:43 PM, Michael michael.auckl...@gmail.com wrote:
I found after update my kernel from 3.0.25 to 3.2.12 or same with kernel 3.3
Disk performance inside VM reduced by 10x times!!! ( for both kvm
0.12.5 and qemu 1.0.1)
It sounds like you are updating the host kernel.
On Sun, Mar 25, 2012 at 2:52 PM, Avi Kivity a...@redhat.com wrote:
Test that a pending #MF is raised correctly if encountered by the emulator
(and that the host isn't trashed by an unexpected exception). The approach
here exploits the TLB and so will only work on more modern processors.
On Sun, Mar 25, 2012 at 1:29 PM, Steve Glass stevie.gl...@gmail.com wrote:
On 22 March 2012 19:52, Stefan Hajnoczi stefa...@gmail.com wrote:
Can you queue a tx-rx kick on the vhost work queue with
vhost_work_queue()?
Stefan
I've been looking at this and trying to work out how to achieve
On Thu, Mar 22, 2012 at 1:48 AM, Steve Glass stevie.gl...@gmail.com wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Just some further information concerning my earlier question
concerning vhost and virtio.
I'm using virtio to implement an emulated mac80211 device in the
guest. A
code modified by another vcpu while the emulator is
executing).
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
This is the patch I tested against the movdqa kvm-unit-test that I submitted.
It still doesn't include #GP on unaligned memory. I'm not sure of the
appropriate place
On Fri, Mar 16, 2012 at 04:59:35PM +0800, Amos Kong wrote:
On 14/03/12 19:46, Stefan Hajnoczi wrote:
On Wed, Mar 14, 2012 at 10:46 AM, Avi Kivitya...@redhat.com wrote:
On 03/14/2012 12:39 PM, Stefan Hajnoczi wrote:
On Wed, Mar 14, 2012 at 10:05 AM, Avi Kivitya...@redhat.com wrote:
On 03/14
Sad news - QEMU was not accepted for Google Summer of Code 2012.
Students can consider other organizations in the accepted
organizations list here:
http://www.google-melange.com/gsoc/accepted_orgs/google/gsoc2012
The list is currently not complete but should be finalized over the
next few days
On Fri, Mar 16, 2012 at 7:44 PM, Natalia Portillo clau...@claunia.com wrote:
Really sad news :(
On 16/03/2012, at 19:29, Stefan Hajnoczi wrote:
Sad news - QEMU was not accepted for Google Summer of Code 2012.
Students can consider other organizations in the accepted
organizations list here
On Wed, Mar 14, 2012 at 12:30 AM, Amos Kong ak...@redhat.com wrote:
- Original Message -
On Tue, Mar 13, 2012 at 2:47 PM, Amos Kong ak...@redhat.com wrote:
...
Hi, Stefan
diff --git a/kvm-all.c b/kvm-all.c
index 77eadf6..7157e78 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@
On Wed, Mar 14, 2012 at 9:22 AM, Avi Kivity a...@redhat.com wrote:
On 03/13/2012 12:42 PM, Amos Kong wrote:
Boot up guest with 232 virtio-blk disk, qemu will abort for fail to
allocate ioeventfd. This patchset changes kvm_has_many_ioeventfds(),
and check if available ioeventfd exists. If not,
On Wed, Mar 14, 2012 at 10:05 AM, Avi Kivity a...@redhat.com wrote:
On 03/14/2012 11:59 AM, Stefan Hajnoczi wrote:
On Wed, Mar 14, 2012 at 9:22 AM, Avi Kivity a...@redhat.com wrote:
On 03/13/2012 12:42 PM, Amos Kong wrote:
Boot up guest with 232 virtio-blk disk, qemu will abort for fail
On Wed, Mar 14, 2012 at 10:46 AM, Avi Kivity a...@redhat.com wrote:
On 03/14/2012 12:39 PM, Stefan Hajnoczi wrote:
On Wed, Mar 14, 2012 at 10:05 AM, Avi Kivity a...@redhat.com wrote:
On 03/14/2012 11:59 AM, Stefan Hajnoczi wrote:
On Wed, Mar 14, 2012 at 9:22 AM, Avi Kivity a...@redhat.com
On Tue, Mar 13, 2012 at 10:42 AM, Amos Kong ak...@redhat.com wrote:
Boot up guest with 232 virtio-blk disk, qemu will abort for fail to
allocate ioeventfd. This patchset changes kvm_has_many_ioeventfds(),
and check if available ioeventfd exists. If not, virtio-pci will
fallback to userspace,
On Tue, Mar 13, 2012 at 11:51 AM, Amos Kong ak...@redhat.com wrote:
On 13/03/12 19:23, Stefan Hajnoczi wrote:
On Tue, Mar 13, 2012 at 10:42 AM, Amos Kongak...@redhat.com wrote:
Boot up guest with 232 virtio-blk disk, qemu will abort for fail to
allocate ioeventfd. This patchset changes
On Tue, Mar 13, 2012 at 2:47 PM, Amos Kong ak...@redhat.com wrote:
- Original Message -
On Tue, Mar 13, 2012 at 11:51 AM, Amos Kong ak...@redhat.com wrote:
On 13/03/12 19:23, Stefan Hajnoczi wrote:
On Tue, Mar 13, 2012 at 10:42 AM, Amos Kongak...@redhat.com
wrote:
Boot up
On Mon, Mar 12, 2012 at 02:08:10PM +0200, Avi Kivity wrote:
On 03/09/2012 04:13 PM, Stefan Hajnoczi wrote:
The kvm kernel module includes a number of trace events which can be
useful when debugging system behavior. Even on production systems these
trace events can be used to observe guest
On Thu, Mar 8, 2012 at 3:27 PM, Alexandre DERUMIER aderum...@odiso.com wrote:
Hi,
i'm trying to build the last kvm git,
./configure --prefix=/usr --datadir=/usr/share/kvm
--docdir=/usr/share/doc/pve-qemu-kvm --sysconfdir=/etc --disable-xen
--enable-vnc-tls --enable-sdl --enable-uuid
On Thu, Mar 8, 2012 at 5:48 PM, George Bottas gbot...@juniper.net wrote:
I have a question regarding changing the queue size that is set in
virtio_blk_init(). The current value is 128, which results in setting the
queue depth in the Windows guest device to 8. Does anyone know if changing
On Thu, Mar 8, 2012 at 11:56 PM, Ross Becker ross.bec...@gmail.com wrote:
I just joined in order to chime in here-
I'm seeing the exact same thing as Reeted; I've got a machine with a
storage subsystem capable of 400k IOPs, and when I punch the storage up to
VMs, each VM seems to top out at
for development and to ensure that
the guest is indeed running.
Signed-off-by: Stefan Hajnoczi stefa...@linux.vnet.ibm.com
---
scripts/kvm/kvm_flightrecorder | 126
1 files changed, 126 insertions(+), 0 deletions(-)
create mode 100755 scripts/kvm
On Tue, Mar 6, 2012 at 10:07 PM, Reeted ree...@shiftmail.org wrote:
On 03/06/12 13:59, Stefan Hajnoczi wrote:
On Mon, Mar 5, 2012 at 4:44 PM, Martin Mailandmar...@tuxadero.com
wrote:
Am 05.03.2012 17:35, schrieb Stefan Hajnoczi:
1. Test on i7 Laptop with Cpu governor ondemand.
v0.14.1
On Wed, Mar 7, 2012 at 2:21 PM, Reeted ree...@shiftmail.org wrote:
On 03/07/12 09:04, Stefan Hajnoczi wrote:
On Tue, Mar 6, 2012 at 10:07 PM, Reetedree...@shiftmail.org wrote:
On 03/06/12 13:59, Stefan Hajnoczi wrote:
BTW, I'll take the opportunity to say that 15.8 or 20.3 k IOPS are very
On Mon, Mar 5, 2012 at 4:44 PM, Martin Mailand mar...@tuxadero.com wrote:
Am 05.03.2012 17:35, schrieb Stefan Hajnoczi:
1. Test on i7 Laptop with Cpu governor ondemand.
v0.14.1
bw=63492KB/s iops=15873
bw=63221KB/s iops=15805
v1.0
bw=36696KB/s iops=9173
bw=37404KB/s iops
On Mon, Mar 5, 2012 at 4:13 PM, Martin Mailand mar...@tuxadero.com wrote:
Am 10.02.2012 15:36, schrieb Dongsu Park:
Recently I observed performance regression regarding virtio-blk,
especially different IO bandwidths between qemu-kvm 0.14.1 and 1.0.
So I want to share the benchmark results,
On Tue, Feb 28, 2012 at 5:15 PM, Martin Mailand mar...@tuxadero.com wrote:
Hi Stefan,
I was bisecting qemu-kvm.git.
qemu-kvm.git regularly merges from qemu.git. The history of the
qemu-kvm.git repository is not linear because of these periodic merges
from the qemu.git tree. I think what
On Wed, Feb 29, 2012 at 1:12 PM, Martin Mailand mar...@tuxadero.com wrote:
Hi Stefan,
you are right, the performance for the commits 0b9b128530b and 4fefc55ab04d
are both good.
What is the best approach to stay in the qemu-kvm.git history?
I didn't know the answer so I asked on #git on
On Wed, Feb 29, 2012 at 1:44 PM, Stefan Hajnoczi stefa...@gmail.com wrote:
On Wed, Feb 29, 2012 at 1:12 PM, Martin Mailand mar...@tuxadero.com wrote:
Hi Stefan,
you are right, the performance for the commits 0b9b128530b and 4fefc55ab04d
are both good.
What is the best approach to stay
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
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 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
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