Displaying 20 results from an estimated 11000 matches similar to: "[Patch] Fix IDLE issue with sedf scheduler on IA64"
2010 Aug 01
3
xm list vs. xl list: more differences?
I see that "xl list" shows a domain waiting idly for console
input as "r", whereas "xm list" shows the same domain as "b".
I also see that the State field for "xl list" contains only
three characters (e.g. "r--"), whereas "xm list" shows six
(e.g. "-b----").
Is this expected/intended (e.g. "r" in xm list
2008 Jun 13
16
Isolation and time
(Moving from offlist discussion.)
I''m interested in opinions... Assume there are four
single vcpu domains A, B, C, D, running on a 2-CPU
physical machine. We wish to test for time skew on
domain A. Assuming B, C, and D are all running
some workload that attempts to fully saturate the
(single) cpu.
1) Should the affect on domain A be essentially the
same regardless of what load
2008 Jun 16
8
Vcpu allocation for a newly created domU
Hi all,
I am having confusion regarding the way a newly created domain is
allocated vcpu.
Initially during dom0 creation alloc_vcpu is called to create vcpu
structs for all the available cpu''s and assigned to dom0. But its not
the case for domU creation.
1. So how will dom0 relinquish/share vcpu to/with a newly created domU.
Does this happen as part of the shared_info page mapping??
2005 Jul 12
21
Dom0 crashing on x86_64
I am seeing a problem with Dom0 crashing on x86_64 whenever I create a
DomU. I''ve done some more testing, and it appears that this problem is
somehow related to networking. Dom0 crashes as soon as the networking
services are started when DomU is coming up. As an experiment, I
brought up DomU without networking, and it stayed up. As soon as I
started DomU with networking enabled, however,
2005 May 17
8
scheduler independent forced vcpu selection
I''m working on a new hypercall, do_confer, which allows the directed
yielding of a vcpu to another vcpu. It is mainly used when a vcpu fails
to acquire a spinlock, yielding to the lock holder instead of spinning. I
ported the ppc64 spinlock implementation for the i386 linux portion. In
implementing the hypercall, I''ve been trying to figure out how to get
the scheduler
2012 Oct 19
1
FW: [PATCH] workqueue: cancel_delayed_work() should return %NULL if work item is idle
FYI, it is likely that ocfs2 will not work on 3.7-rcN until
the following one-line patch is merged, as the code in ramster
that provoked it is directly leveraged from ocfs2 o2net.
> From: Tejun Heo [mailto:tj at kernel.org]
> Sent: Thursday, October 18, 2012 5:39 PM
> To: Dan Magenheimer
> Cc: linux-kernel at vger.kernel.org; Konrad Wilk
> Subject: [PATCH] workqueue:
2011 Dec 20
0
sedf: remove useless tracing printk and harmonize comments style.
sched_sedf.c used o have its own mechanism for producing tracing-alike
kind of information (domain block, wakeup, etc.). Nowadays, with an even
not so high number of pCPUs/vCPUs, just trying to enable this makes
the serial console completely unusable, produces tons of very hard to
parse and interpreet logging and can easily livelock Dom0. Moreover,
pretty much the same result this is struggling to
2005 Dec 29
1
RE: Guest-visible phys2mach part of Xen arch-neutral API? was: Uses of &frame_table[xfn]
> > Note that the current physical=machine in domain0 is not a
> > design requirement, just the current implementation. The question
> > at hand isn''t whether Xen/ia64 domain0 should be mapped
> > physical=machine,
> > but -- if it is not -- whether the mapping should be guest-visible.
>
> The mapping will need to be guest-visible to allow correct
2013 Jun 04
13
[PATCH] x86/vtsc: update vcpu_time after hvm_set_guest_time
When using a vtsc, hvm_set_guest_time changes hvm_vcpu.stime_offset,
which is used in the vcpu time structure to calculate the
tsc_timestamp, so after updating stime_offset we need to propagate the
change to vcpu_time in order for the guest to get the right time if
using the PV clock.
This was not done correctly, since in context_switch
update_vcpu_system_time was called before vmx_do_resume,
2006 Jul 21
3
How set up CPU time
Hi all,
i know that for each virtual machine i can set up a number of vcpu. But
if i want to give only a % of the real CPU? For example: how can i set
up a virtual domain for using only 20% of the real CPU? is it possible?
Ty in advance
D.
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2014 Jun 11
1
Recent (6.02) PXELINUX on Soekris net4501
* Ady, 2014-06-11 :
> Perhaps it would be worth testing with official pre-built binaries of
> Syslinux 6.03-pre14 using the following config:
Different behaviour.
* pxelinux.0:
After TFTP load of pxelinus.0, spits out gibberish for ~1 minute
(as though it had set an incorrect default serial port speed),
then loads config and switches back to correct baud rate.
"Hello
2005 Mar 30
0
xen problem
hi,
lately i try to download xen from bitkeeper -
bk://xen.bkbits.net/xen-2.0.bk (ought to be version
2.0); but encounter a probelm when build from source.
it has error as follow.
the env is cygwin, gcc 3.3.3 and make 3.80
how to slove it? i appreciate any suggestion.
sinrecely.
jason
===============ERROR BEG ============
ac_timer.c:44: warning: alignment of `ac_timers'' is
greater than
2010 Aug 19
1
Credit Scheduler code question
Hi,
I''m a PhD student trying to add some load balancing code to the credit
scheduler in order to fit some specific necessities. I''m trying to
understand the credit scheduler code and I don''t quite get in which part of
it a pcpu starts running a vcpu. I need to keep track of when a vpcu starts
running in a cpu and when it stops. Any hint on that?
I think that it would
2011 Nov 17
12
[PATCH] Avoid panic when adjusting sedf parameters
When using sedf scheduler in a cpupool the system might panic when setting
sedf scheduling parameters for a domain.
Signed-off-by: juergen.gross@ts.fujitsu.com
1 file changed, 4 insertions(+)
xen/common/sched_sedf.c | 4 ++++
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2008 Jul 01
25
Guest TSC and Xen (Intel and AMD feedback please)
Various versions of Linux under various circumstances select
TSC as the primary clocksource for the kernel. This is
especially true for uniprocessor kernels, but also in some
cases for multiprocessor kernels. In most cases, this
is because a processor bit (tsc_invariant? constant_tsc?)
is passed through directly from the hardware via Xen and
tested by the hvm guest and the result implies that
2014 Jun 11
3
Recent (6.02) PXELINUX on Soekris net4501
* Gene Cumm, 2014-06-10 :
> If 4.05 or 3.86 acted nicely, this would mean a bug.
OK, so, with unpatched official binaries:
3.86
----
pxelinux.0
Loads fine, assumes terminal width 15, displays menu, but then freezes
(I suspect it does not process any input from the serial port)
gpxelinux.0
Displays:
PXE->EB: !PXE at 9E64:0060, entry point at 9E64:00F6
UNDI code segment
2012 Jun 20
7
[PATCH] xl: fix sedf parameters checking
9d1fd58ff602 was bogous in not letting a new domain being created
if its scheduling parameters --when running under the sedf scheduler--
were not fully specified, making creation fail like in this example
here below:
2012-06-16 07:37:47 Z executing ssh ... root@10.80.248.105 xl create /etc/xen/debian.guest.osstest.cfg
libxl: error: libxl.c:3619:sched_sedf_domain_set: setting domain sched sedf:
2005 Nov 16
0
[PATCH] small format changes in xm.1 to make sedf more readable
Here are some small format changes in xm.1 to make sedf more readable,
should start getting to the device section proper today.
-Sean
--
__________________________________________________________________
Sean Dague Mid-Hudson Valley
sean at dague dot net Linux Users Group
http://dague.net
2006 Feb 10
2
sedf and config file
Is there a way to setup cpu scheduling commands from inside the config file
for a domU ? Or it can only be done after the domU has been started ?
--
regards,
Anand Gupta
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2005 Oct 13
2
[PATCH] sedf get in XendClient API
Here are some patches I compiled to get sedf_get to the XendClient
API... sadly, however, the current xc frontend is missing a variable
(weight) and needed to be edited.
Below are my "homemade" patches (I did this since my code base is
EXTREMELY old... however the code is still valid)
tools/python/xen/lowlevel/xc/xc.c
line 766
static PyObject *pyxc_sedf_domain_get(PyObject *self,