search for: cpu_time

...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 valu...

...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 s...

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 /pro...

...(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_...

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...

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 missin...

...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 cgroups...

...[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) (dev...

...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, wh...

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 jump...

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 par...

...--------------------------- 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: Requested...

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

...: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''...

...-------------- [2006-05-11 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,...

...'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,...

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,

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

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

...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 operation...