http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1672
Summary: xenpm start, statistics displayed incorrectly.
Product: Xen
Version: unstable
Platform: x86
OS/Version: Linux-2.6
Status: NEW
Severity: major
Priority: P2
Component: Hypervisor
AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
ReportedBy: dkar4700@xxxxxxxxxxxxxxxxx
The processor is an Intel quad core processor, first three cores are running on
ondemand and the remaining core is running on powersave govenor. To get the
average cpu frequency â??xenpm start 5â?? command was executed ( Results are
list below ). Although the cpu 3 is running on lowest frequency which is P11
100%, the Avg Frequency is reported as 2199360 Hz. There is only one vm running
with 4 vcpus. All 4 cores are utilized evenly while stats were gathering.
1)If cpu 3 was running 100% on P11 state the average cpu frequency should be
around 1197000 ? ( If the reported figure is correct, could someone please shed
some light on how it is calculated )
2)The notation is also should also be on Hz not KHz on the average Freq ?
Please let me know if anymore information is necessary.
CPU3: Residency(ms) Avg Res(ms)
C0 3525 (70.49%) 0.36
C1 1060 (21.19%) 0.12
C2 43 ( 0.87%) 0.23
C3 372 ( 7.45%) 0.44
P0 0 ( 0.00%)
P1 0 ( 0.00%)
P2 0 ( 0.00%)
P3 0 ( 0.00%)
P4 0 ( 0.00%)
P5 0 ( 0.00%)
P6 0 ( 0.00%)
P7 0 ( 0.00%)
P8 0 ( 0.00%)
P9 0 ( 0.00%)
P10 0 ( 0.00%)
P11 3479 (100.00%)
Avg freq 2199360 KHz
Related information.
uname -a
Linux 96 2.6.32-5-xen-686 #1 SMP Sat Sep 18 06:00:14 UTC 2010 i686 GNU/Linux
dpkg -l | grep -i xen
ii libc6-xen 2.11.2-6 Embedded GNU
C Library: Shared libraries [Xen version]
ii libxenstore3.0 4.0.1-1 Xenstore
communications library for Xen
ii linux-image-2.6.32-5-xen-686 2.6.32-23 Linux 2.6.32
for modern PCs, Xen dom0 support
ii xen-hypervisor-4.0-amd64 4.0.1-1 The Xen
Hypervisor on AMD64
ii xen-tools 4.2-1 Tools to
manage Xen virtual servers
ii xen-utils-4.0 4.0.1-1 XEN
administrative tools
ii xen-utils-common 4.0.0-1 XEN
administrative tools - common files
ii xenstore-utils 4.0.1-1 Xenstore
utilities for Xen
xm list
Name ID Mem VCPUs State Time(s)
Domain-0 0 2041 4 r----- 80.4
vm1 1 128 4 -b---- 3618.2
xenpm start 5
Timeout set to 5 seconds
Start sampling, waiting for CTRL-C or SIGINT or SIGALARM signal ...
Elapsed time (ms): 5000
CPU0: Residency(ms) Avg Res(ms)
C0 3492 (69.84%) 0.35
C1 1025 (20.51%) 0.11
C2 80 ( 1.60%) 0.39
C3 402 ( 8.05%) 0.55
P0 1696 (49.26%)
P1 98 ( 2.87%)
P2 124 ( 3.63%)
P3 316 ( 9.18%)
P4 123 ( 3.58%)
P5 156 ( 4.55%)
P6 184 ( 5.36%)
P7 91 ( 2.65%)
P8 200 ( 5.83%)
P9 72 ( 2.09%)
P10 94 ( 2.73%)
P11 284 ( 8.27%)
Avg freq 2224640 KHz
CPU1: Residency(ms) Avg Res(ms)
C0 3534 (70.68%) 0.35
C1 1057 (21.14%) 0.11
C2 104 ( 2.09%) 0.52
C3 304 ( 6.09%) 0.45
P0 0 ( 0.00%)
P1 0 ( 0.00%)
P2 0 ( 0.00%)
P3 0 ( 0.00%)
P4 0 ( 0.00%)
P5 0 ( 0.00%)
P6 0 ( 0.00%)
P7 0 ( 0.00%)
P8 0 ( 0.00%)
P9 0 ( 0.00%)
P10 0 ( 0.00%)
P11 3489 (100.00%)
Avg freq 2199360 KHz
CPU2: Residency(ms) Avg Res(ms)
C0 3510 (70.18%) 0.35
C1 1130 (22.60%) 0.12
C2 50 ( 1.01%) 0.26
C3 310 ( 6.22%) 0.42
P0 0 ( 0.00%)
P1 0 ( 0.00%)
P2 0 ( 0.00%)
P3 0 ( 0.00%)
P4 0 ( 0.00%)
P5 0 ( 0.00%)
P6 0 ( 0.00%)
P7 0 ( 0.00%)
P8 0 ( 0.00%)
P9 0 ( 0.00%)
P10 0 ( 0.00%)
P11 3464 (100.00%)
Avg freq 2199360 KHz
CPU3: Residency(ms) Avg Res(ms)
C0 3525 (70.49%) 0.36
C1 1060 (21.19%) 0.12
C2 43 ( 0.87%) 0.23
C3 372 ( 7.45%) 0.44
P0 0 ( 0.00%)
P1 0 ( 0.00%)
P2 0 ( 0.00%)
P3 0 ( 0.00%)
P4 0 ( 0.00%)
P5 0 ( 0.00%)
P6 0 ( 0.00%)
P7 0 ( 0.00%)
P8 0 ( 0.00%)
P9 0 ( 0.00%)
P10 0 ( 0.00%)
P11 3479 (100.00%)
Avg freq 2199360 KHz
cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 30
model name : Intel(R) Xeon(R) CPU X3440 @ 2.53GHz
stepping : 5
cpu MHz : 2527.012
cache size : 8192 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu de tsc msr pae mce cx8 apic sep mtrr mca cmov pat clflush
acpi mmx fxsr sse sse2 ss ht nx constant_tsc nonstop_tsc aperfmperf pni est
ssse3 sse4_1 sse4_2 popcnt hypervisor ida
bogomips : 5054.02
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 30
model name : Intel(R) Xeon(R) CPU X3440 @ 2.53GHz
stepping : 5
cpu MHz : 2527.012
cache size : 8192 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu de tsc msr pae mce cx8 apic sep mtrr mca cmov pat clflush
acpi mmx fxsr sse sse2 ss ht nx constant_tsc nonstop_tsc aperfmperf pni est
ssse3 sse4_1 sse4_2 popcnt hypervisor ida
bogomips : 5054.02
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 2
vendor_id : GenuineIntel
cpu family : 6
model : 30
model name : Intel(R) Xeon(R) CPU X3440 @ 2.53GHz
stepping : 5
cpu MHz : 2527.012
cache size : 8192 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu de tsc msr pae mce cx8 apic sep mtrr mca cmov pat clflush
acpi mmx fxsr sse sse2 ss ht nx constant_tsc nonstop_tsc aperfmperf pni est
ssse3 sse4_1 sse4_2 popcnt hypervisor ida
bogomips : 5054.02
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 3
vendor_id : GenuineIntel
cpu family : 6
model : 30
model name : Intel(R) Xeon(R) CPU X3440 @ 2.53GHz
stepping : 5
cpu MHz : 2527.012
cache size : 8192 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu de tsc msr pae mce cx8 apic sep mtrr mca cmov pat clflush
acpi mmx fxsr sse sse2 ss ht nx constant_tsc nonstop_tsc aperfmperf pni est
ssse3 sse4_1 sse4_2 popcnt hypervisor ida
bogomips : 5054.02
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
xen dmesg
-bash: xen: command not found
root@96:/etc/xen# xm dmesg
(XEN) Xen version 4.0.1 (Debian 4.0.1-1) (waldi@xxxxxxxxxx) (gcc version 4.4.5
20100728 (prerelease) (Debian 4.4.4-8) ) Fri Sep 3 15:18:21 UTC 2010
(XEN) Bootloader: GRUB 1.98+20100804-4
(XEN) Command line: placeholder
(XEN) Video information:
(XEN) VGA is text mode 80x25, font 8x16
(XEN) VBE/DDC methods: V2; EDID transfer time: 1 seconds
(XEN) Disc information:
(XEN) Found 1 MBR signatures
(XEN) Found 1 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN) 0000000000000000 - 000000000009c000 (usable)
(XEN) 000000000009c000 - 00000000000a0000 (reserved)
(XEN) 00000000000e0000 - 0000000000100000 (reserved)
(XEN) 0000000000100000 - 000000007dd83000 (usable)
(XEN) 000000007dd83000 - 000000007de33000 (reserved)
(XEN) 000000007de33000 - 000000007f68f000 (usable)
(XEN) 000000007f68f000 - 000000007f6df000 (reserved)
(XEN) 000000007f6df000 - 000000007f7df000 (ACPI NVS)
(XEN) 000000007f7df000 - 000000007f7ff000 (ACPI data)
(XEN) 000000007f7ff000 - 000000007f800000 (usable)
(XEN) 000000007f800000 - 0000000080000000 (reserved)
(XEN) 00000000ff800000 - 0000000100000000 (reserved)
(XEN) 0000000100000000 - 0000000180000000 (usable)
(XEN) ACPI: RSDP 000FDFD0, 0024 (r2 IBM )
(XEN) ACPI: XSDT 7F7FE120, 007C (r1 IBM FOXHOLLW 0 1000013)
(XEN) ACPI: FACP 7F7FB000, 00F4 (r4 IBM FOXHOLLW 0 IBM 1000013)
(XEN) ACPI: DSDT 7F7F8000, 2765 (r1 IBM FOXHOLLW 3 IBM 1000013)
(XEN) ACPI: FACS 7F712000, 0040
(XEN) ACPI: TCPA 7F7FD000, 0064 (r0 0 0)
(XEN) ACPI: APIC 7F7F7000, 00D2 (r2 IBM FOXHOLLW 0 IBM 1000013)
(XEN) ACPI: MCFG 7F7F6000, 003C (r1 IBM FOXHOLLW 1 IBM 1000013)
(XEN) ACPI: SLIC 7F7F5000, 0176 (r1 IBM FOXHOLLW 0 IBM 1000013)
(XEN) ACPI: HPET 7F7F4000, 0038 (r1 IBM FOXHOLLW 1 IBM 1000013)
(XEN) ACPI: SSDT 7F7F3000, 0113 (r2 IBM CPUSCOPE 4000 IBM 1000013)
(XEN) ACPI: SSDT 7F7F2000, 084C (r2 IBM PSTATEPM 4000 IBM 1000013)
(XEN) ACPI: SSDT 7F7F1000, 0362 (r2 IBM CPUCSTAT 4000 IBM 1000013)
(XEN) ACPI: ERST 7F7F0000, 0230 (r1 IBM FOXHOLLW 1 IBM 1000013)
(XEN) ACPI: DMAR 7F7EF000, 0068 (r1 IBM FOXHOLLW 1 IBM 1000013)
(XEN) System RAM: 4085MB (4183536kB)
(XEN) Domain heap initialised
(XEN) Processor #0 7:14 APIC version 21
(XEN) Processor #2 7:14 APIC version 21
(XEN) Processor #4 7:14 APIC version 21
(XEN) Processor #6 7:14 APIC version 21
(XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
(XEN) Enabling APIC mode: Flat. Using 1 I/O APICs
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2527.012 MHz processor.
(XEN) Initing memory sharing.
(XEN) VMX: Supported advanced features:
(XEN) - APIC MMIO access virtualisation
(XEN) - APIC TPR shadow
(XEN) - Extended Page Tables (EPT)
(XEN) - Virtual-Processor Identifiers (VPID)
(XEN) - Virtual NMI
(XEN) - MSR direct-access bitmap
(XEN) EPT supports 2MB super page.
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging detected.
(XEN) Intel VT-d Snoop Control supported.
(XEN) Intel VT-d DMA Passthrough not supported.
(XEN) Intel VT-d Queued Invalidation supported.
(XEN) Intel VT-d Interrupt Remapping not supported.
(XEN) I/O virtualisation enabled
(XEN) - Dom0 mode: Relaxed
(XEN) Total of 4 processors activated.
(XEN) ENABLING IO-APIC IRQs
(XEN) -> Using new ACK method
(XEN) TSC is reliable, synchronization unnecessary
(XEN) Platform timer appears to have unexpectedly wrapped 1 times.
(XEN) Platform timer is 14.318MHz HPET
(XEN) Allocated console ring of 16 KiB.
(XEN) Brought up 4 CPUs
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Xen kernel: 64-bit, lsb, compat32
(XEN) Dom0 kernel: 32-bit, PAE, lsb, paddr 0x1000000 -> 0x164c000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN) Dom0 alloc.: 0000000178000000->000000017c000000 (984443 pages to be
allocated)
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN) Loaded kernel: 00000000c1000000->00000000c164c000
(XEN) Init. ramdisk: 00000000c164c000->00000000c29fae00
(XEN) Phys-Mach map: 00000000c29fb000->00000000c2dcc5ec
(XEN) Start info: 00000000c2dcd000->00000000c2dcd4b4
(XEN) Page tables: 00000000c2dce000->00000000c2dec000
(XEN) Boot stack: 00000000c2dec000->00000000c2ded000
(XEN) TOTAL: 00000000c0000000->00000000c3000000
(XEN) ENTRY ADDRESS: 00000000c13fd000
(XEN) Dom0 has maximum 4 VCPUs
(XEN) Scrubbing Free RAM: .done.
(XEN) Xen trace buffers: disabled
(XEN) Std. Loglevel: Errors and warnings
(XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
(XEN) Xen is relinquishing VGA console.
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to
Xen)
(XEN) Freed 176kB init memory.
xenpm get-cpufreq-para
cpu id : 0
affected_cpus : 0
cpuinfo frequency : max [2528000] min [1197000] cur [1197000]
scaling_driver : acpi-cpufreq
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
turbo mode : enabled
scaling_avail_freq : 2528000 2527000 2394000 2261000 2128000 1995000 1862000
1729000 1596000 1463000 1330000 *1197000
scaling frequency : max [2528000] min [1197000] cur [1197000]
cpu id : 1
affected_cpus : 1
cpuinfo frequency : max [2528000] min [1197000] cur [1197000]
scaling_driver : acpi-cpufreq
scaling_avail_gov : userspace performance powersave ondemand
current_governor : powersave
scaling_avail_freq : 2528000 2527000 2394000 2261000 2128000 1995000 1862000
1729000 1596000 1463000 1330000 *1197000
scaling frequency : max [2528000] min [1197000] cur [1197000]
cpu id : 2
affected_cpus : 2
cpuinfo frequency : max [2528000] min [1197000] cur [1197000]
scaling_driver : acpi-cpufreq
scaling_avail_gov : userspace performance powersave ondemand
current_governor : powersave
scaling_avail_freq : 2528000 2527000 2394000 2261000 2128000 1995000 1862000
1729000 1596000 1463000 1330000 *1197000
scaling frequency : max [2528000] min [1197000] cur [1197000]
cpu id : 3
affected_cpus : 3
cpuinfo frequency : max [2528000] min [1197000] cur [1197000]
scaling_driver : acpi-cpufreq
scaling_avail_gov : userspace performance powersave ondemand
current_governor : powersave
scaling_avail_freq : 2528000 2527000 2394000 2261000 2128000 1995000 1862000
1729000 1596000 1463000 1330000 *1197000
scaling frequency : max [2528000] min [1197000] cur [1197000]
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