Hollis Blanchard wrote:
> On Sunday 20 April 2008 00:38:32 Liu, Eric E wrote:
>> Christian Ehrhardt wrote:
>>> Liu, Eric E wrote:
>>>> Hollis Blanchard wrote:
>>>>> On Wednesday 16 April 2008 01:45:34 Liu, Eric E wrote: [...]
>>>>> Actua
Christian Ehrhardt wrote:
> Liu, Eric E wrote:
>> Hollis Blanchard wrote:
>>> On Wednesday 16 April 2008 01:45:34 Liu, Eric E wrote: [...]
>>> Actually... we could have kvmtrace itself insert the metadata, so
>>> there would be no chance of it being overwr
David S. Ahern wrote:
> inline.
>
> Liu, Eric E wrote:
>> David S. Ahern wrote:
>>> I am trying to add a trace marker and the data is coming out all
>>> 0's. e.g.,
>>>
>>> 0 (+ 0) PTE_WRITE vcpu = 0x0001 pid = 0x240d [
David S. Ahern wrote:
> I am trying to add a trace marker and the data is coming out all 0's.
> e.g.,
>
> 0 (+ 0) PTE_WRITE vcpu = 0x0001 pid = 0x240d [
> gpa = 0x gpte = 0x ]
>
> Patch is attached. I know the data is non-zero as I added an i
Hollis Blanchard wrote:
> On Wednesday 16 April 2008 01:45:34 Liu, Eric E wrote:
>>
>>> Hmm, while we're on the subject, I'm not sure what the best way to
>>> automatically byteswap will be. It probably isn't worth it to
>>> convert all
Hollis Blanchard wrote:
> On Tuesday 15 April 2008 22:13:28 Liu, Eric E wrote:
>> Hollis Blanchard wrote:
>>> On Wednesday 09 April 2008 05:01:36 Liu, Eric E wrote:
>>>> +/* This structure represents a single trace buffer record. */
>>>> +str
Hollis Blanchard wrote:
> On Wednesday 09 April 2008 05:01:36 Liu, Eric E wrote:
>> +/* This structure represents a single trace buffer record. */
>> +struct kvm_trace_rec { + __u32 event:28;
>> + __u32 extra_u32:3;
>> + __u32 cycle_in:1;
>> +
>From 193536b1cd96f646b66bea52bc46fdebcdcfc1cf Mon Sep 17 00:00:00 2001
From: Feng (Eric) Liu <[EMAIL PROTECTED]>
Date: Wed, 16 Apr 2008 07:05:22 -0400
Subject: [PATCH] KVM: trace: fix a redundant assignment.
Romove the redundant assignment, since the variable "extra"
will not be used again.
Sign
>From 9314f8b249fe6c32f006e6a1cec5d3868b66e6ff Mon Sep 17 00:00:00 2001
From: Feng (Eric) Liu <[EMAIL PROTECTED]>
Date: Wed, 16 Apr 2008 05:45:40 -0400
Subject: [PATCH] kvm: user: Add event mask support in kvmtrace.
Signed-off-by: Feng (Eric) Liu <[EMAIL PROTECTED]>
---
user/kvmtrace.c | 56
+++
>From a1b062cfd4d1a91c447b680ac9a2250fe55119ec Mon Sep 17 00:00:00 2001
From: Feng (Eric) Liu <[EMAIL PROTECTED]>
Date: Wed, 16 Apr 2008 05:29:37 -0400
Subject: [PATCH] KVM: trace: Add event mask support.
Allow user space application to specify one or more
filter masks to limit the events being ca
Hi,
The following two patches add event mask support in kvmtrace and the
corresponding kernel code, so that we can specify filter masks to limit
the events being captured.
--Eric (Liu, Feng)
-
This SF.net email is sponsored
>From c22da0fa5b09ea7b9e6045a660eb1782afc5200a Mon Sep 17 00:00:00 2001
From: Feng(Eric) Liu <[EMAIL PROTECTED]>
Date: Thu, 10 Apr 2008 09:34:20 -0400
Subject: [PATCH] kvm: "kvmtrace_format" parses the binary trace data
from kvmtrace, and
reformats it according to the rules in the file "formats" of
>From 3338918ad3d15550103047d18e24fcb1d8a4c0b3 Mon Sep 17 00:00:00 2001
From: Feng(Eric) Liu <[EMAIL PROTECTED]>
Date: Thu, 10 Apr 2008 09:00:44 -0400
Subject: [PATCH] kvm: Add a tool kvmtrace for collecting binary data
from relayfs. It is not an analysis tool.
The code is based on blktrace.
Signe
>From c950129e3876ac89b15af8f668976aa03142e802 Mon Sep 17 00:00:00 2001
From: Feng(Eric) Liu <[EMAIL PROTECTED]>
Date: Thu, 10 Apr 2008 09:15:53 -0400
Subject: [PATCH] kvm: Modify "Kbuild" for kvm trace and ensure that
"kvm_stat"
can work when kvm trace is enabling by userspace app.
Signed-off-by:
>From 1059e1b1c5bb8881bd82136ef8fb6a352f6bbf53 Mon Sep 17 00:00:00 2001
From: Feng(Eric) Liu <[EMAIL PROTECTED]>
Date: Thu, 10 Apr 2008 08:47:53 -0400
Subject: [PATCH] KVM: Add kvm trace kernel support. When config
KVM_TRACE,
it allows user space app to read the trace of kvm related
events through
Hi, Avi and all
According to your comments from V2, I work out the new patchsets
of kvm trace. Please help to review, Thanks.
In this version, fix the issues you pointed out and add a new ioctl
PAUSE to make user space app better to control trace stream.
Hope it is useful for performance a
>From 49bb016dc7a231409859b553cce52faf07bf2b8b Mon Sep 17 00:00:00 2001
From: Feng (Eric) Liu <[EMAIL PROTECTED]>
Date: Thu, 10 Apr 2008 15:31:10 -0400
Subject: [PATCH] KVM: Add some trace markers and expose some interfaces
for user space app to control and use tracing data.
Signed-off-by: Feng (E
Avi Kivity wrote:
> Liu, Eric E wrote:
>>> From 41d65b55580d3f07f9f1c50e89e3d64c5d10fbaf Mon Sep 17 00:00:00
>>> 2001
>> From: Feng (Eric) Liu <[EMAIL PROTECTED]>
>> Date: Tue, 1 Apr 2008 07:26:14 -0400
>> Subject: [PATCH] KVM: Add kvm trace support.
Avi Kivity wrote:
> Liu, Eric E wrote:
>>> From d56731ffc6d5742a88a157dfe0e4344d35f7db58 Mon Sep 17 00:00:00
>>> 2001
>> From: Feng(Eric) Liu <[EMAIL PROTECTED]>
>> Date: Mon, 31 Mar 2008 10:08:55 -0400
>> Subject: [PATCH] KVM: Add some trace entries
David Abrahams wrote:
> on Wed Apr 02 2008, Avi Kivity wrote:
>
>> David Abrahams wrote:
>>> With the title combination, the guest takes nearly 100% of my real
>>> CPU time and still only sees one CPU. Is this a known problem, and
>>> does it have a known solution?
>>>
>>>
>>
>> Can you send
>From 41d65b55580d3f07f9f1c50e89e3d64c5d10fbaf Mon Sep 17 00:00:00 2001
From: Feng (Eric) Liu <[EMAIL PROTECTED]>
Date: Tue, 1 Apr 2008 07:26:14 -0400
Subject: [PATCH] KVM: Add kvm trace support. when config KVM_TRACE, it
allows userspace app to read the trace of kvm_related
events through the rela
>From e0d0f33ce1a536d4f2c3a1763f23a89f0a726cd6 Mon Sep 17 00:00:00 2001
From: Feng (Eric) Liu <[EMAIL PROTECTED]>
Date: Mon, 31 Mar 2008 10:57:16 -0400
Subject: [PATCH] kvm: Add a tool kvmtrace for collecting binary data
from relayfs. The code is based on blktrace.
Signed-off-by: Feng (Eric) Liu <
>From d56731ffc6d5742a88a157dfe0e4344d35f7db58 Mon Sep 17 00:00:00 2001
From: Feng(Eric) Liu <[EMAIL PROTECTED]>
Date: Mon, 31 Mar 2008 10:08:55 -0400
Subject: [PATCH] KVM: Add some trace entries in current code and define
some interfaces for userspace app to contrl and use tracing data.
Signed-of
>From a18df6cb088a07ce34fb1981ca3077f5e6925ae2 Mon Sep 17 00:00:00 2001
From: Feng (Eric) Liu <[EMAIL PROTECTED]>
Date: Mon, 31 Mar 2008 10:35:59 -0400
Subject: [PATCH] kvm: Modify "Kbuild" for kvm trace and ensure
"kvm_stat"
work when kvm trace is enabled by userspace app.
Signed-off-by: Feng (E
>From 182054d6c1e6a6213f3fa56aab1ca56c39f9ba80 Mon Sep 17 00:00:00 2001
From: Feng(Eric) Liu <[EMAIL PROTECTED]>
Date: Mon, 31 Mar 2008 10:52:57 -0400
Subject: [PATCH] kvm: "kvmtrace_format" parses the binary trace data
outputted
by kvmtrace, and reformats it according to the rules in the
file "for
Hi,
The following patches add trace support in kvm using relay_fs
and trace_mark according to last comments. if we want to use it, we
should config kvm_trace firstly which depends on MARKERS and SYSFS, at
this case it will add a tiny time penalty to check whether we provide a
hook to call a
[EMAIL PROTECTED] wrote:
> Avi Kivity wrote:
>> Jan Kiszka wrote:
>>> Avi Kivity wrote:
>>>
>>>> Liu, Eric E wrote:
>>>>
>>>>>
>>>>> Since we already have had debugfs_entries and some other kernel
>>&
>From 1fd1215cc56a52109d6df1a2302b391511d3d91b Mon Sep 17 00:00:00 2001
From: Feng(Eric) Liu <[EMAIL PROTECTED]>
Date: Sat, 15 Mar 2008 08:09:24 -0400
Subject: [PATCH] KVM: Porting xentrace to kvm. The trace data is
outputted
into the trace buffer managed as ring buffer for per cpu,
and the usersp
>From 0d7f1ee470fe907e00ac6246bfa11e5322bc64fb Mon Sep 17 00:00:00 2001
From: Feng (Eric) Liu <[EMAIL PROTECTED]>
Date: Sat, 15 Mar 2008 06:07:33 -0400
Subject: [PATCH] KVM: Add some trace entries in current code, when the
KVM_TRACE
compilation option is enabled, it outputs the data info thrace
bu
>From df6e45936dd43be14441f5e9ec19a130325d4341 Mon Sep 17 00:00:00 2001
From: Feng (Eric) Liu <[EMAIL PROTECTED]>
Date: Sat, 15 Mar 2008 04:53:53 -0400
Subject: [PATCH] kvm: Add a tool kvmtrace for collecting binary data
from
trace buffer. It can get the buffer virtual address and
the size in page
>From 2e16085ad8b4ecfe7e053a627a86dc24bbe04315 Mon Sep 17 00:00:00 2001
From: Feng(Eric) Liu <[EMAIL PROTECTED]>
Date: Fri, 14 Mar 2008 18:19:46 -0400
Subject: [PATCH] kvm: "kvmtrace_format" prarses the trace data outputted
by kvmtrace in binary format, and reformats it according
to the rules in th
Hi,
The following patches port xentrace to kvm which is useful for
performance tuning and debugging.
It is designed to allow debugging traces of kvm to be generated on
Up/Smp machines. Each trace entry is outputted in a trace ring buffer
for per cpu which is mapped to userspace, and the userspace
Liu, Eric E wrote:
>> From e4fae3b29b694a489638b00214fc41530092c3d1 Mon Sep 17 00:00:00
>> 2001
> From: Feng (Eric) Liu <[EMAIL PROTECTED]>
> Date: Sat, 16 Feb 2008 03:41:17 -0500
> Subject: [PATCH] kvm: Fix building error of preempt.c
>
> current kernel code h
>From e4fae3b29b694a489638b00214fc41530092c3d1 Mon Sep 17 00:00:00 2001
From: Feng (Eric) Liu <[EMAIL PROTECTED]>
Date: Sat, 16 Feb 2008 03:41:17 -0500
Subject: [PATCH] kvm: Fix building error of preempt.c
current kernel code has merged the file processor_32.h and
processor_64.h
to processor.h, so
>From ab229d437b59317a322ca0efd2b0d239b74e Mon Sep 17 00:00:00 2001
From: Feng(Eric) Liu <[EMAIL PROTECTED]>
Date: Tue, 22 Jan 2008 17:01:29 -0500
Subject: [PATCH] kvm: mmu: fix a potential issue
Since the type of gpa is u64, so extend pte_size to u64. Otherwise, a
potential issue
may happen.
If we use Qcow img to boot SMP guest, windows guest may hang , since
the vcpu thread which does AIO will wait for the signal SIGUSR2 which
may be eated by vcpu 0 's thread. So this patch removes SIGUSR2 from
io_sigset and masks it in vcpu 0's thread, it can let the guest boot
successfully.
>From
Hi Avi
For current commit Windows SMP guests will fail to boot if using
Qcow images based on the original backend file on a remote network file
system. I found out that one Ap thread is hang at the place of
bdrv_read_em() -> qemu_aio_wait() -> sigwait(), which is waiting for the
signal SIG
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