search for: cpu_tim

Displaying 20 results from an estimated 124 matches for "cpu_tim".

Did you mean: cpu_time
2012 Apr 16
2
What does cpu_time returned by virDomainGetCPUStats mean?
...interesting' thing involving virDomainGetCPUStats(). I call it for cpu usage consumed by a domain and get a array of virTypedParameter. My system is 2-core and hyperviser return 1 parameter per cpu. So the contents of the array is like this. virTypedParameter[0] { .fiedl = "cpu_time" .type = 4 .value.ul = 51640610899 } virTypedParameter[1] { .field = "cpu_time" .type = 4 .value.ul = 55302820304 } I thought this value store the run time of the cpu since last boot. But I find I was wrong because this val...
2005 Feb 23
19
Calculating real cpu usage of Xen domains correctly!
...c calls (xc_get_dom_info & xc_domain_get_cpu_usage). These two functions give you how much time (in nanoseconds, why is this not documented) the domain has been actively used. Approaches: 1) CPU time % measured per domain (The differential of cpu usage time / some differential time) x 100 new_cpu_time-old_cpu_time new_time-old_time This provides us with the % time the domain had activity ...but does not give us absolute real CPU usage. Another problem here is sometimes you will get percentages like %103 usage, because the cpu usage returned by theses functions looks to be measured...
2012 Apr 16
1
What's the precision of the domain cpu stats?
Hi, everyone I'm using libvirt and resort to virDomainGetCPUStats for cpu usage by one domain. In my system, Ubuntu-11.10 64bit with 2 cores and Qemu Hyperviser, this function returns something like this: virTypedParameter[0] { field: "cpu_time" type: 4 value.ul 51640610899 } virTypedParameter[1] { field: "cpu_time" type: 4 value.ul 55302820304 } This 51640610899 and 55302820304 kind of conflict the result returned by "cat /pr...
2008 Feb 14
5
On an eight cpu system domU ''cap'' can only be set to 100
...(uuid 00000000-0000-0000-0000-000000000000) (vcpus 8) (cpu_weight 1.0) (memory 256) (shadow_memory 0) (maxmem 256) (features ) (name Domain-0) (on_poweroff destroy) (on_reboot restart) (on_crash restart) (state r-----) (shutdown_reason poweroff) (cpu_time 458.198750944) (online_vcpus 8) ) (domain (domid 5) (uuid f9070996-4ae2-bbc6-ad88-80e0da1a13f1) (vcpus 1) (cpu_weight 1.0) (memory 1024) (shadow_memory 0) (maxmem 2048) (features ) (name dev-services) (on_poweroff destroy) (on_reboot restart) (on...
2005 Aug 08
1
[PATCH] Fix domain CPU time calculation to count all VCPU times correctly
Currently, the getdomaininfo function (used to fill in a dom0_getdomaininfo_t for a domain) calculates a domain''s total CPU time from its VCPU times using the code: if ( v->cpu_time > cpu_time ) cpu_time += v->cpu_time; This causes a VCPU''s time to only be counted if it is greater than the current total; so if VCPU0 has 10 seconds and VCPU1 has 5, the total will be 10, but if VCPU0 has 5 and VCPU10 has 10, the total will be 15. Is there a reason for...
2008 Sep 03
0
XenAPI: why we implement VM_metrics.VCPUs_utilisation as proportion?
hi all, why we implement VM_metrics.VCPUs_utilisation as the proportion of all cpu time? Then XenAPI client (xm) can not get the accumulated cpu_time of each vcpu. I recommend we make VM_metrics.VCPUs_utilisation just the cpu_time which is maintained by hypervisor. Then XenAPI client (xm) not only can get the accumulated cpu_time of each vcpu, but also can calculate the proportion by getting twice the VM_metrics.VCPUs_utilisation. Am I missi...
2013 May 29
0
Help needed regarding "virsh cpu-stats test_vm"
...VMs managed by libvirt). virsh cpu-stats command is not working in our platform : virsh # cpu-stats test_vm error: Failed to virDomainGetCPUStats() error: Requested operation is not valid: cgroup CPUACCT controller is not mounted It should show info like this. $ virsh cpu-stats test_vm CPU0: cpu_time 0.025812184 seconds vcpu_time 0.025812184 seconds CPU1: cpu_time 4.893484927 seconds vcpu_time 4.893484927 seconds Total: cpu_time 4.924620941 seconds user_time 1.060000000 seconds system_time 3.050000000 seconds We are suspecting some issue in virsh when it is trying to find to where that cgroup...
2005 Feb 01
5
Cannot save/migrate domains
...[DEBUG] stream_init>mode=r flags=1 compress=0 [DEBUG] stream_init> unbuffer... [DEBUG] stream_init< err=0 [DEBUG] Conn_sxpr> (xfr.hello 1 0)[DEBUG] Conn_sxpr< err=0 [DEBUG] Conn_sxpr> (xfr.save 9 "(domain (id 9) (name sky) (memory 128) (maxmem 131072) (state -b---) (cpu 1) (cpu_time 32.860785883) (up_time 59850.3932199) (start_time 1107193823.05) (console (status listening) (id 13) (domain 9) (local_port 13) (remote_port 1) (console_port 9609)) (devices (vif (idx 0) (vif 0) (mac aa:00:00:20:ef:69) (evtchn 31 4) (index 0)) (vbd (idx 0) (vdev 769) (device 2048) (mode w) (de...
2007 May 15
3
[PATCH 1/12] Add suspend/resume to devices owned by Xen
...ACPI-based IOAPIC Configuration ------------------------------------------------------------------------ -- */ diff -r 3ef0510e44d0 xen/arch/x86/time.c --- a/xen/arch/x86/time.c Tue May 08 10:21:23 2007 +0100 +++ b/xen/arch/x86/time.c Mon May 14 15:05:28 2007 -0400 @@ -60,6 +60,16 @@ struct cpu_time { static DEFINE_PER_CPU(struct cpu_time, cpu_time); +struct plt_timer_ops { + char* name; + int (*init)(void); + u64 (*read_count)(void); + void (*suspend)(void); + void (*resume)(void); +}; + +struct plt_timer_ops *cur_timer; + /* * Protected by platform_timer_lock, w...
2012 Mar 20
5
[hybrid]: hang in update_wall_time
Hi Ian/Stefano: I changed over to the PV clock for hybrid liked we talked at the hackathon. I still have the hang in update_wall_time() after dom0 switches to xen as clocksource. The source of hang seems to be in xen stime_local_stamp in cpu_time that suddenly jumps to a large 64bit value. I''ve been chasing to figure where that happens, and why for the hybrid and not PV. It appears the source of jump is time_calibration_std_rendezvous() in c->stime_master_stamp. Chasing that, seems to come from read_platform_stime(). The jum...
2013 Apr 19
1
problem when get the vm cpu stat
Hi all, I try to get vm cpu stat by function "virDomainGetCPUStats", when the vm Cpu usage is 100%, I can see from the vm shell by "top", when the info Get by the "virDomainGetCPUStats" show only the "cpu_time" increased, "user_time" and "system_time" was not changed at all. Is that correct ? How can I get the vm cpu usage? nparams = virDomainGetCPUStats(domain, NULL, 0, -1, 1, 0); virDomainGetCPUStats(domain, params, nparams, -1, 1, 0); Thanks, Kevin. -------------- next pa...
2012 Aug 17
1
getCPUStats of a domain by a non-root user - libvirtError: Requested operation is not valid: cgroup CPUACCT controller is not mounted
...--------------------------- libvirtError Traceback (most recent call last) <ipython-input-23-9317cf967f6d> in <module>() ----> 1 dom.getCPUStats(True, 0) /usr/lib/python2.7/site-packages/libvirt.pyc in getCPUStats(self, total, flags) 1733 [{cpu_time:xxx, user_time:xxx, system_time:xxx}] """ 1734 ret = libvirtmod.virDomainGetCPUStats(self._o, total, flags) -> 1735 if ret is None: raise libvirtError ('virDomainGetCPUStats() failed', dom=self) 1736 return ret 1737 libvirtError: Requeste...
2013 Jun 07
4
[xen-unstable test] 18092: tolerable FAIL
flight 18092 xen-unstable real [real] http://www.chiark.greenend.org.uk/~xensrcts/logs/18092/ Failures :-/ but no regressions. Tests which are failing intermittently (not blocking): test-amd64-amd64-xl-qemuu-winxpsp3 8 guest-saverestore fail pass in 18090 Tests which did not succeed, but are not blocking: test-amd64-amd64-xl-pcipt-intel 9 guest-start fail never pass
2006 Feb 11
2
Xend crashes repeatedly starting DomU - please help...
...:48 xend] INFO (SrvDaemon:278) Xend Daemon started [2006-02-09 15:20:48 xend] INFO (SrvDaemon:282) Xend changeset: Tue Jan 31 11:04:12 2006 +0100 8738:eff96462fde8. [2006-02-09 15:20:48 xend.XendDomainInfo] DEBUG (XendDomainInfo:199) XendDomainInfo.recreate({''paused'': 0, ''cpu_time'': 640829708489L, ''ssidref'': 0, ''handle'': [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], ''shutdown_reason'': 0, ''dying'': 0, ''dom'': 0, ''mem_kb'': 128000, ''maxmem_kb''...
2006 May 31
0
Bug#368417: xen-hypervisor-3.0-i386: cannot start NetBSD-HEAD
...-------------- [2006-05-11 22:58:53 xend] INFO (SrvDaemon:278) Xend Daemon started [2006-05-11 22:58:53 xend] INFO (SrvDaemon:282) Xend changeset: Thu Apr 27 09:58:50 2006 +0100 . [2006-05-11 22:58:53 xend.XendDomainInfo] DEBUG (XendDomainInfo:200) XendDomainInfo.recreate({'paused': 0, 'cpu_time': 23463898463L, 'ssidref': 0, 'handle': [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], 'shutdown_reason': 0, 'dying': 0, 'dom': 0, 'mem_kb': 131072, 'maxmem_kb': -4, 'max_vcpu_id': 1, 'crashed': 0, 'running': 1,...
2006 May 31
0
[pakrat@private.neotoma.org: xen-hypervisor-3.0-i386: cannot start NetBSD-HEAD]
...'pty' [2006-05-11 22:58:53 xend] INFO (SrvDaemon:278) Xend Daemon started [2006-05-11 22:58:53 xend] INFO (SrvDaemon:282) Xend changeset: Thu Apr 27 09:58:50 2006 +0100 . [2006-05-11 22:58:53 xend.XendDomainInfo] DEBUG (XendDomainInfo:200) XendDomainInfo.recreate({'paused': 0, 'cpu_time': 23463898463L, 'ssidref': 0, 'handle': [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], 'shutdown_reason': 0, 'dying': 0, 'dom': 0, 'mem_kb': 131072, 'maxmem_kb': -4, 'max_vcpu_id': 1, 'crashed': 0, 'running': 1,...
2014 Mar 12
4
Problem in getting memory statistics
Hello, I need to get how much memory is used by a guest system, in order to implement some monitoring function which tells me if the system is overstressed. I am currently using java apis and the binding which was suggested to me was Domain.memoryStats(); This is a binding to int virDomainMemoryStats (virDomainPtr<http://libvirt.org/html/libvirt-libvirt.html#virDomainPtr>dom,
2007 May 24
4
host information in domU over /proc or /sys filesystem
Hi, I have a few questions. But lets start with the background: Several other virtualization technologies beside Xen do provide the possibility to get configuration information of the VM itself and the host it is running on through the /proc file system. These technologies are for example zLinux or Linux on ppc64. This feature is very important for quality of service aspects. How many
2007 Dec 03
8
xm create - Xend has probably crashed! Invalid or missing HTTP status code.
Hi, I have compiled xen-unstable (using hg clone http://xenbits.xensource.com/xen-unstable.hg). I have successfully booted into the dom0 kernel. output of xm list: Name ID Mem VCPUs State Time(s) Domain-0 0 932 1 r----- 591.2 But whenever I xm create, I get: # xm create /etc/xen/domu1 Using config file
2009 Jun 11
3
Gathering "metal" stats
...ualized I don’t know if I can trust this data. I’m aware that /proc/stat is unusable as Dom0 will not see cycles that DomUs are stealing, and thus it does not give me accurate utilization of the metal – I know that I can calculate the actual CPU usage of each VM using “vm list –long” and comparing cpu_time to uptime, so that’s not a problem. The issue arises when I attempt to get IO stats – DomUs see their own ‘sda1’ (or whichever) – I don’t know if this means that the ‘sda’ that Dom0 sees is the real hardware or an abstraction. The question I have is: do IO operations on DomUs result in IO operatio...