Displaying 7 results from an estimated 7 matches for "dirty_cpus".
2012 Oct 17
28
Xen PVM: Strange lockups when running PostgreSQL load
I am currently looking at a bug report[1] which is happening when
a Xen PVM guest with multiple VCPUs is running a high IO database
load (a test script is available in the bug report).
In experimenting it seems that this happens (or is getting more
likely) when the number of VCPUs is 8 or higher (though I have
not tried 6, only 2 and 4), having autogroup enabled seems to
make it more likely, too
2009 Apr 06
5
Config to set CPU affinity and distribute interrupts
...rom 00000000:00000002 to 00000000:00000000.
(XEN) traps.c:2171:d0 Domain attempted WRMSR 0000019a from 00000000:00000002 to 00000000:00000000.
(XEN) \047q\047 pressed -> dumping domain info (now=0xA6:793D9493)
(XEN) General information for domain 0:
(XEN) refcnt=3 nr_pages=247296 xenheap_pages=5 dirty_cpus={0}
(XEN) handle=00000000-0000-0000-0000-000000000000 vm_assist=0000000d
(XEN) Rangesets belonging to domain 0:
(XEN) Interrupts { 0-255 }
(XEN) I/O Memory { 0-febff, fec01-fedff, fee01-ffffffff }
(XEN) I/O Ports { 0-1f, 22-3f, 44-60, 62-9f, a2-cfb, d00-ffff }
(XEN) Memory pages belonging to domain...
2011 Nov 08
48
Need help with fixing the Xen waitqueue feature
The patch ''mem_event: use wait queue when ring is full'' I just sent out
makes use of the waitqueue feature. There are two issues I get with the
change applied:
I think I got the logic right, and in my testing vcpu->pause_count drops
to zero in p2m_mem_paging_resume(). But for some reason the vcpu does
not make progress after the first wakeup. In my debugging there is one
2008 Sep 05
0
3.2.1+ HVM + HAP + NUMA - Poor Memory Performance
...ance is an even worse 2.67GB/sec.
Is there likely something wrong with my NUMA config? Anyone have any
benchmark results to share on Barcelona with HAP enabled? Do I need to
pin Dom0 to a particular CPU?
HAP looks OK:
(XEN) VCPU0: CPU4 [has=F] flags=1 upcall_pend = 00, upcall_mask = 00
dirty_cpus={4} cpu_affinity={4}
(XEN) paging assistance: hap, 4 levels
NUMA looks OK:
nr_cpus : 8
nr_nodes : 2
cores_per_socket : 4
threads_per_core : 1
cpu_mhz : 2000
Thanks in advance,
Rob
The SAQ Group
Registered Office: 18 Cha...
2006 Oct 04
0
[PATCH,RFC 6/17] 32-on-64 shared info handling
...evtchn_upcall_pending,
- v->vcpu_info->evtchn_upcall_mask);
+ vcpu_info(v, evtchn_upcall_pending),
+ vcpu_info(v, evtchn_upcall_mask));
cpuset_print(cpuset, sizeof(cpuset), v->vcpu_dirty_cpumask);
printk("dirty_cpus=%s ", cpuset);
cpuset_print(cpuset, sizeof(cpuset), v->cpu_affinity);
@@ -176,11 +177,11 @@ static void dump_domains(unsigned char k
printk(" Notifying guest (virq %d, port %d, stat %d/%d/%d)\n",
VIRQ_DEBUG, v->virq_to_evtchn[VIR...
2013 Jul 18
15
[PATCH v5 0/5] xen: public interface and foreign struct check changes for arm
I last posted this back in April to critical acclaim (AKA near total
silence).
I''m not sure who looks after tools/include/xen-foreign. I had thought it
was Jan but I think I was confused and was thinking of the semi-related
xen/include/compat stuff. IOW I think nobody felt "responsible".
Unless there''s any objection lets just treat this as coming under tools.
The
2013 Jun 26
24
Re: [XenARM] XEN tools for ARM with Virtualization Extensions
(moving to xen-devel, xen-arm is for the older PV ARM port)
On Tue, 2013-06-25 at 23:59 +0000, Eric Trudeau wrote:
> Hi, I am trying to build the XEN tools for our port of XEN to our
> Cortex A15-based platform.
>
> I am using the repo at git://xenbits.xenproject.org/xen.git to
> cross-compile the tools into our rootfs.
Which branch/changeset are you using?
I've heard that