search for: cpu_cap

# HG changeset patch # User Lutz.Dube # Node ID ca2c8c262dbaa6b2521cec60af7cd688dabdf850 # Parent 8992134dcfd0b9e1e86f4111e68a8aa48bd33c3c Values of cpu_weight and cpu_cap are lost after xend restart For managed domains in state ''halted'' I always get default values for cpu_cap / cpu_weight after xend restart. This is because the names of parameters differ between a SXP file to create a VM (here the parameter names are cpu_cap / cpu_weight) and a SX...

...: depending on the type of load, vcpus=8 will be slower. Performance-wise, you should not create a domU with more vcpus than available physical core. On 8-core (or more) server : depending on the type of load, vcpus=8 will be much faster. A special case is when on 8-core server and you set "cpu_cap=100" (or less) on both domUs. In theory, they will have the same performance. Again, this is only true if your xen version supports cpu_cap. > 2. if i have 2 domu, one with vcpu=4 and second with vcpu=1, they will have > same perfomance if one of them is idle, and half of perfomance if...

...eight value -sets the cpu time ratio to be allocated to the domain -the scale and the default value may vary according to the scheduler used. No modification has been made for the bvt scheduler. --credit scheduler: 1~65535 (default:256) --bvt scheduler: float value (default:1.0) 2.CAP [OPTIONAL] cpu_cap= value -this is only valid when using the credit scheduler -allots the maximum CPU usage percentage for the domain -the domain will use -- (value x 0.01) physical CPUs ex: 50 for 0.5 physical CPU 100 for 1.0 physical CPU 400 for 4.0 physical CPU -- default:0.0 (no limit) Improvements:...

Hi, This patch fixes the Bug:835 issue. # xm create /home/kanno/smp-domU.conf cpu_weight=512 cpu_cap=150 Using config file "/home/kanno/smp-domU.conf". Started domain vm1-smp # xm sched-credit -d vm1-smp {''cap'': 150, ''weight'': 512} Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com> Best regards, Kan ______________________________...

Shouldn''t RESTART be semantically the same as SHUTDOWN && CREATE ?! Regards, Volker > > > That may well be the case, but it probably takes a bit more digging > > before that can be solved. > > It actually works. It was my fault. > > I tested it by setting cpu_weight in the config and the RESTARTING the > domain. This did not read the new value

Hi. I has xen virtual machine in paravirtualisation. Host and guest sysstems are CentOS. When I use top in guest machine I see, that system use 20% resourses. But in host machine I see, that machine use 50% resourses. In config machine has 5 processors, and has cpu_cap 352. Processor is 2266MHz. Therefor for statistic in guest machine it use ~ 2266 MHz(1 processor), and for Xen hypervisor - 4000 MHz. Can somebody ask how it happens? Thanks. -- Vasilyev Igor _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com ht...

...diff -r 6f3c6fb05af3 tools/python/xen/lowlevel/xc/xc.c --- a/tools/python/xen/lowlevel/xc/xc.c Mon Sep 11 13:45:23 2006 -0500 +++ b/tools/python/xen/lowlevel/xc/xc.c Sat Sep 16 08:17:13 2006 -0500 @@ -474,8 +474,21 @@ static PyObject *pyxc_physinfo(XcObject { xc_physinfo_t info; char cpu_cap[128], *p=cpu_cap, *q=cpu_cap; - int i; - + int i,j; + PyObject *ret_obj, *memchunk_obj, *node_to_cpu_obj; + xc_memory_chunk_t *chunks; + xc_node_to_cpu_t *map; + + /* make space for mem chunks */ + chunks = (xc_memory_chunk_t *)malloc( sizeof(xc_memory_chunk_t) * +...

...ite useful feature in the Xen HVM configuration file. I here by suggest it to be added in the example file located at </usr/share/doc/xen-utils-common/examples/xmexample.hvm.gz>. It seems that you can configure Xen 3.1's Credit-Based CPU Scheduler by adding settings cpu_weight=128 and cpu_cap=20 in the configuration file itself. Though I haven't located any references to this feature from Xen's documentation or anywhere at the internet. More information about the Xen Credit Scheduler at <http://wiki.xensource.com/xenwiki/CreditScheduler>. PS: I discovered this when I...

Is there a way to determine the build number without downloading the full VM Image? We are waiting for a build that has the cpu_caps feature. I believe they are in builds >= snv_61 per http://www.opensolaris.org/os/project/rm/rctls/cpu-caps/ This message posted from opensolaris.org

Hi Everyone, What''s the parameter in the DomU config file to cap the CPU on the domain? I tried using "cap = 20". While the VM booted ok, doing a "xm sched-credit -d </domain/>" showed the cap as being 0 Any ideas? Thanks _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com

...Mac OS X 10.5.8 (9L31a) Report Version: 6 Anonymous UUID: D86CDCBC-00FD-4AEE-AB50-2EFE0DAE9E1E Exception Type: EXC_BAD_ACCESS (SIGBUS) Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000067ee2 Crashed Thread: 0 Thread 0 Crashed: 0 libSystem.B.dylib 0xffff07c7 __memcpy + 39 (cpu_capabilities.h:246) 1 com.apple.CoreFoundation 0x96a6a0b4 __CFStringEncodeByteStream + 4052 2 com.apple.Foundation 0x94446eb7 -[NSString(NSStringOtherEncodings) getBytes:maxLength:usedLength:encoding:options:range:remainingRange:] + 295 3 com.apple.Foundation 0x94446a1a...

I''m not able to start, destroy, or delete a DomU: > xen1:~ # xm start test4 > Error: Domain is already running > Usage: xm start <DomainName> > > Start a Xend managed domain >   -p, --paused                   Do not unpause domain after starting it    >   -c, --console_autoconnect      Connect to the console after the domain   

...ac OS X 10.5.8 (9L31a) Report Version: 6 Anonymous UUID: D86CDCBC-00FD-4AEE-AB50-2EFE0DAE9E1E Exception Type: EXC_BAD_ACCESS (SIGBUS) Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000067ee2 Crashed Thread: 0 Thread 0 Crashed: 0 libSystem.B.dylib 0xffff07c7 __memcpy + 39 (cpu_capabilities.h:246) 1 com.apple.CoreFoundation 0x96a6a0b4 __CFStringEncodeByteStream + 4052 2 com.apple.Foundation 0x94446eb7 -[NSString(NSStringOtherEncodings) getBytes:maxLength:usedLength:encoding:options:range:remainingRange:] + 295 3 com.apple.Foundation 0x94446a1a...

Hi folks I deploy a two Dell PowerEdge T300 to test Virtualization with kvm+drbd+heartbaet. The KVM drbd and heartbeat work properly. However, I have doubt!! When the primary node has down, the secondary node start the VM that has original running on primary node... So, this required a full stop of hole system... This is not we wish here... Is there something way to live migrate VM from

...loader didn''t return any data! But the provided pygrub does pull up the grub menu with ''pygrub leela.img''. DomU: I pass through some physical drives to a zpool array, this machine is a storage server and handles SMB/CIFS. (domain (domid 7) (cpu_weight 256) (cpu_cap 0) (on_crash restart) (uuid blah) (bootloader_args -q) (vcpus 1) (name leela) (on_poweroff destroy) (on_reboot restart) (cpus (())) (description ) (bootloader /usr/bin/pygrub-4.1b) (maxmem 1024) (memory 1024) (shadow_memory 0) (features )...

...t;ryanh@us.ibm.com> --- diff -r 51045f276c90 tools/python/xen/lowlevel/xc/xc.c --- a/tools/python/xen/lowlevel/xc/xc.c Mon Jul 31 10:48:48 2006 -0500 +++ b/tools/python/xen/lowlevel/xc/xc.c Mon Jul 31 10:49:10 2006 -0500 @@ -631,10 +631,11 @@ static PyObject *pyxc_physinfo(XcObject if(q>cpu_cap) *(q-1)=0; - ret_obj = Py_BuildValue("{s:i,s:i,s:i,s:l,s:l,s:l,s:i,s:s}", + ret_obj = Py_BuildValue("{s:i,s:i,s:i,s:i,s:l,s:l,s:l,s:i,s:s}", "threads_per_core", info.threads_per_core, "core...

...s: if i and i[0] == 'domain': The problem also exists in sid's version 4.4.1-2. Cheers, Volker P.S. This output from xen list -l with XM toolstack can be used for testing (xen-init-list should return "3 qetesh"): (domain (domid 0) (cpu_weight 512) (cpu_cap 0) (pool_name Pool-0) (bootloader '') (vcpus 4) (cpus ((0) (2) (4) (6))) (on_poweroff destroy) (on_crash restart) (uuid 00000000-0000-0000-0000-000000000000) (bootloader_args '') (name Domain-0) (on_reboot restart) (maxmem 16777215) (m...

Hello! Trying to find out some guides how to set up freebsd under xen, all i found is pointing to www.fsmware.com, <http://www.fsmware.com/xenofreebsd/7.0/download/> which is down! Maybe someone could share freebsd image and config? _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

...ain (domid 37) (on_crash restart) (uuid d7453a3e-c917-f08d-e6a6-8821b843f7d7) (bootloader_args ) (vcpus 1) (name Solaris10) (on_poweroff destroy) (on_reboot restart) (bootloader ) (maxmem 1000) (memory 1000) (shadow_memory 9) (cpu_weight 256) (cpu_cap 0) (features ) (on_xend_start ignore) (on_xend_stop shutdown) (start_time 1206443868.4) (cpu_time 13.191853939) (online_vcpus 1) (image (hvm (kernel /usr/lib/xen/boot/hvmloader) (boot c) (device_model /usr/lib/xen/bin/qemu-dm)...

...main (domid 4) (on_crash restart) (uuid f1bff0c3-812d-71e9-52e2-e107c7cb4943) (bootloader_args ) (vcpus 2) (name WinXP_02) (on_poweroff destroy) (on_reboot restart) (bootloader ) (maxmem 1526) (memory 1526) (shadow_memory 14) (cpu_weight 256) (cpu_cap 0) (features ) (on_xend_start ignore) (on_xend_stop ignore) (start_time 1191851529.85) (cpu_time 1146.68402986) (online_vcpus 2) (image (hvm (kernel /usr/lib/xen/boot/hvmloader) (boot c) (device_model /usr/lib/xen/bin/qemu-dm)...