* [Qemu-devel] [Bug 1452904] [NEW] High CPU in idle Windows guest
@ 2015-05-07 21:07 tglanfield
2018-05-07 19:46 ` [Qemu-devel] [Bug 1452904] " Thomas Huth
2018-07-07 4:17 ` Launchpad Bug Tracker
0 siblings, 2 replies; 3+ messages in thread
From: tglanfield @ 2015-05-07 21:07 UTC (permalink / raw)
To: qemu-devel
Public bug reported:
Hi,
I'm running a freshly installed Windows 7 domU on an up-to-date Debian
jessie machine running Xen 4.4.1-9. When the Windows machine is idle,
I'm seeing upwards of 10% CPU usage from the qemu-system-i386 instance.
Other Linux and FreeBSD machines register negligable CPU usage (<0.5%).
The server is an HP Proliant DL360 G7.
Data from perf attacthed to the process might give the best clues.
Any information as to why this processes is comsuming so much CPU would
be much appreciated.
Regards,
Terry.
# uname -a
Linux xen 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt9-3~deb8u1 (2015-04-24) x86_64 GNU/Linux
# lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 8.0 (jessie)
Release: 8.0
Codename: jessie
# qemu-system-i386 --version
QEMU emulator version 2.1.2 (Debian 1:2.1+dfsg-11), Copyright (c) 2003-2008 Fabrice Bellard
# cat win7.cfg
name = 'win7'
vcpus = '1'
memory = '4096'
builder = 'hvm'
disk = [ '/vms/xen/domains/desk_win7/disk1.img,qcow2,hda,rw',
'/vms/xen/domains/desk_win7/disk2.img,qcow2,hdb,rw' ]
vfb = [ 'vnc=1,vnclisten="0.0.0.0",sdl=0' ]
vif = [ 'mac=00:16:3E:FB:FC:39,bridge=xenbr0' ]
serial = 'pty'
vnc = 1
vnclisten = '0.0.0.0'
sdl = 0
usbdevice = 'mouse'
audio = 1
soundhw = 'sb16,es1370'
on_poweroff = 'destroy'
on_reboot = 'restart'
on_crash = 'restart'
# /usr/bin/qemu-system-i386 -nodefaults -name desk_win7 -boot order=cda
-usb -usbdevice mouse -device
rtl8139,id=nic0,netdev=net0,mac=00:16:3e:fb:fc:39 -netdev
type=tap,id=net0,ifname=vif12.0-emu,script=no,downscript=no -m 4088
-drive
file=/vms/xen/domains/desk_win7/disk1.img,if=ide,index=0,media=disk,format=qcow2,cache=writeback
-drive
file=/vms/xen/domains/desk_win7/disk2.img,if=ide,index=1,media=disk,format=qcow2,cache=writeback
-vnc 0.0.0.0:0,to=99 -display none -device cirrus-vga -global
vga.vram_size_mb=8
# top
Tasks: 134 total, 1 running, 133 sleeping, 0 stopped, 0 zombie
%Cpu(s): 16.6 us, 5.5 sy, 0.0 ni, 0.0 id, 77.9 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem: 354420 total, 348884 used, 5536 free, 184 buffers
KiB Swap: 17575932 total, 2642868 used, 14933064 free. 4132 cached Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
12297 root 20 0 6683864 192944 1140 S 20.6 54.4 2:25.51 qemu-syste+
# xen dmesg
(XEN) Xen version 4.4.1 (Debian 4.4.1-9) (waldi@debian.org) (gcc (Debian 4.9.2-10) 4.9.2) debug=n Mon Apr 6 18:24:28 UTC 2015
(XEN) Bootloader: GRUB 2.02~beta2-22
(XEN) Command line: placeholder dom0_mem=512M dom0_max_vcpus=1 dom0_vcpus_pin radeon.modeset=0 iommu=no-intremap
(XEN) Video information:
(XEN) VGA is text mode 80x25, font 8x16
(XEN) VBE/DDC methods: none; EDID transfer time: 2 seconds
(XEN) EDID info not retrieved because no DDC retrieval method detected
(XEN) Disc information:
(XEN) Found 1 MBR signatures
(XEN) Found 1 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN) 0000000000000000 - 000000000009f400 (usable)
(XEN) 000000000009f400 - 00000000000a0000 (reserved)
(XEN) 00000000000f0000 - 0000000000100000 (reserved)
(XEN) 0000000000100000 - 00000000cf62f000 (usable)
(XEN) 00000000cf62f000 - 00000000cf63c000 (ACPI data)
(XEN) 00000000cf63c000 - 00000000cf63d000 (usable)
(XEN) 00000000cf63d000 - 00000000d4000000 (reserved)
(XEN) 00000000fec00000 - 00000000fee10000 (reserved)
(XEN) 00000000ff800000 - 0000000100000000 (reserved)
(XEN) 0000000100000000 - 00000004affff000 (usable)
(XEN) ACPI: RSDP 000F4F00, 0024 (r2 HP )
(XEN) ACPI: XSDT CF630140, 00B4 (r1 HP ProLiant 2 Ò\x04 162E)
(XEN) ACPI: FACP CF630240, 00F4 (r3 HP ProLiant 2 Ò\x04 162E)
(XEN) ACPI: DSDT CF630340, 20BD (r1 HP DSDT 1 INTL 20030228)
(XEN) ACPI: FACS CF62F100, 0040
(XEN) ACPI: SPCR CF62F140, 0050 (r1 HP SPCRRBSU 1 Ò\x04 162E)
(XEN) ACPI: MCFG CF62F1C0, 003C (r1 HP ProLiant 1 0)
(XEN) ACPI: HPET CF62F200, 0038 (r1 HP ProLiant 2 Ò\x04 162E)
(XEN) ACPI: FFFF CF62F240, 0064 (r2 HP ProLiant 2 Ò\x04 162E)
(XEN) ACPI: SPMI CF62F2C0, 0040 (r5 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: ERST CF62F300, 01D0 (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: APIC CF62F500, 015E (r1 HP ProLiant 2 0)
(XEN) ACPI: SRAT CF62F680, 0570 (r1 HP Proliant 1 Ò\x04 162E)
(XEN) ACPI: FFFF CF62FC00, 0176 (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: BERT CF62FD80, 0030 (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: HEST CF62FDC0, 00BC (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: DMAR CF62FE80, 0150 (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: SSDT CF632400, 0125 (r3 HP CRSPCI0 2 HP 1)
(XEN) ACPI: SSDT CF632540, 01CF (r3 HP riser1a 2 INTL 20061109)
(XEN) ACPI: SSDT CF632740, 03BB (r1 HP pcc 1 INTL 20090625)
(XEN) ACPI: SSDT CF632B00, 0377 (r1 HP pmab 1 INTL 20090625)
(XEN) ACPI: SSDT CF632E80, 2094 (r1 INTEL PPM RCM 1 INTL 20061109)
(XEN) System RAM: 18421MB (18863928kB)
(XEN) Domain heap initialised
(XEN) Processor #0 6:12 APIC version 21
(XEN) Processor #16 6:12 APIC version 21
(XEN) Processor #4 6:12 APIC version 21
(XEN) Processor #20 6:12 APIC version 21
(XEN) Processor #2 6:12 APIC version 21
(XEN) Processor #18 6:12 APIC version 21
(XEN) Processor #1 6:12 APIC version 21
(XEN) Processor #17 6:12 APIC version 21
(XEN) Processor #5 6:12 APIC version 21
(XEN) Processor #21 6:12 APIC version 21
(XEN) Processor #3 6:12 APIC version 21
(XEN) Processor #19 6:12 APIC version 21
(XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
(XEN) IOAPIC[1]: apic_id 0, version 32, address 0xfec80000, GSI 24-47
(XEN) Enabling APIC mode: Phys. Using 2 I/O APICs
(XEN) Failed to get Error Log Address Range.
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2533.485 MHz processor.
(XEN) Initing memory sharing.
(XEN) Intel VT-d iommu 0 supported page sizes: 4kB.
(XEN) Intel VT-d Snoop Control not enabled.
(XEN) Intel VT-d Dom0 DMA Passthrough not enabled.
(XEN) Intel VT-d Queued Invalidation enabled.
(XEN) Intel VT-d Interrupt Remapping not enabled.
(XEN) Intel VT-d Shared EPT tables not enabled.
(XEN) I/O virtualisation enabled
(XEN) - Dom0 mode: Relaxed
(XEN) Interrupt remapping disabled
(XEN) Enabled directed EOI with ioapic_ack_old on!
(XEN) ENABLING IO-APIC IRQs
(XEN) -> Using old ACK method
(XEN) Platform timer is 14.318MHz HPET
(XEN) Allocated console ring of 32 KiB.
(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) - Unrestricted Guest
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging (HAP) detected
(XEN) HVM: HAP page sizes: 4kB, 2MB, 1GB
(XEN) Brought up 12 CPUs
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Xen kernel: 64-bit, lsb, compat32
(XEN) Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x1f18000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN) Dom0 alloc.: 000000049c000000->00000004a0000000 (110661 pages to be allocated)
(XEN) Init. ramdisk: 00000004aee45000->00000004afdff7d5
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN) Loaded kernel: ffffffff81000000->ffffffff81f18000
(XEN) Init. ramdisk: ffffffff81f18000->ffffffff82ed27d5
(XEN) Phys-Mach map: ffffffff82ed3000->ffffffff82fd3000
(XEN) Start info: ffffffff82fd3000->ffffffff82fd34b4
(XEN) Page tables: ffffffff82fd4000->ffffffff82ff1000
(XEN) Boot stack: ffffffff82ff1000->ffffffff82ff2000
(XEN) TOTAL: ffffffff80000000->ffffffff83400000
(XEN) ENTRY ADDRESS: ffffffff819021f0
(XEN) Dom0 has maximum 1 VCPUs
(XEN) Scrubbing Free RAM: .................................................................................................................................................................................done.
(XEN) Initial low memory virq threshold set at 0x4000 pages.
(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 284kB init memory.
# perf report
# To display the perf.data header info, please use --header/--header-only options.
#
# Samples: 6K of event 'cpu-clock'
# Event count (approx.): 1744250000
#
# Overhead Command Shared Object Symbol
# ........ ............... ....................... ....................................
#
8.69% qemu-system-i38 [kernel.kallsyms] [k] xen_hypercall_xen_version
2.29% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acac8
2.01% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acad9
1.53% qemu-system-i38 qemu-system-i386 [.] 0x00000000000ac978
1.33% qemu-system-i38 qemu-system-i386 [.] 0x00000000000ac989
1.02% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acaa4
0.93% qemu-system-i38 libc-2.19.so [.] memset
0.70% qemu-system-i38 qemu-system-i386 [.] 0x00000000000e2814
0.69% qemu-system-i38 qemu-system-i386 [.] 0x00000000000e37f4
0.67% qemu-system-i38 qemu-system-i386 [.] 0x00000000000aca40
0.66% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acadf
0.60% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acad7
0.59% qemu-system-i38 [vdso] [.] __vdso_clock_gettime
0.59% qemu-system-i38 qemu-system-i386 [.] 0x0000000000342b88
0.57% qemu-system-i38 [vdso] [.] __vdso_gettimeofday
0.52% qemu-system-i38 [kernel.kallsyms] [k] pvclock_clocksource_read
0.49% qemu-system-i38 qemu-system-i386 [.] 0x00000000000a9e45
0.46% qemu-system-i38 [kernel.kallsyms] [k] do_sys_poll
0.37% qemu-system-i38 [kernel.kallsyms] [k] hrtimer_init
0.36% qemu-system-i38 [kernel.kallsyms] [k] __fget
0.34% qemu-system-i38 [kernel.kallsyms] [k] ktime_get_ts
** Affects: qemu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1452904
Title:
High CPU in idle Windows guest
Status in QEMU:
New
Bug description:
Hi,
I'm running a freshly installed Windows 7 domU on an up-to-date Debian
jessie machine running Xen 4.4.1-9. When the Windows machine is idle,
I'm seeing upwards of 10% CPU usage from the qemu-system-i386 instance.
Other Linux and FreeBSD machines register negligable CPU usage (<0.5%).
The server is an HP Proliant DL360 G7.
Data from perf attacthed to the process might give the best clues.
Any information as to why this processes is comsuming so much CPU would
be much appreciated.
Regards,
Terry.
# uname -a
Linux xen 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt9-3~deb8u1 (2015-04-24) x86_64 GNU/Linux
# lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 8.0 (jessie)
Release: 8.0
Codename: jessie
# qemu-system-i386 --version
QEMU emulator version 2.1.2 (Debian 1:2.1+dfsg-11), Copyright (c) 2003-2008 Fabrice Bellard
# cat win7.cfg
name = 'win7'
vcpus = '1'
memory = '4096'
builder = 'hvm'
disk = [ '/vms/xen/domains/desk_win7/disk1.img,qcow2,hda,rw',
'/vms/xen/domains/desk_win7/disk2.img,qcow2,hdb,rw' ]
vfb = [ 'vnc=1,vnclisten="0.0.0.0",sdl=0' ]
vif = [ 'mac=00:16:3E:FB:FC:39,bridge=xenbr0' ]
serial = 'pty'
vnc = 1
vnclisten = '0.0.0.0'
sdl = 0
usbdevice = 'mouse'
audio = 1
soundhw = 'sb16,es1370'
on_poweroff = 'destroy'
on_reboot = 'restart'
on_crash = 'restart'
# /usr/bin/qemu-system-i386 -nodefaults -name desk_win7 -boot
order=cda -usb -usbdevice mouse -device
rtl8139,id=nic0,netdev=net0,mac=00:16:3e:fb:fc:39 -netdev
type=tap,id=net0,ifname=vif12.0-emu,script=no,downscript=no -m 4088
-drive
file=/vms/xen/domains/desk_win7/disk1.img,if=ide,index=0,media=disk,format=qcow2,cache=writeback
-drive
file=/vms/xen/domains/desk_win7/disk2.img,if=ide,index=1,media=disk,format=qcow2,cache=writeback
-vnc 0.0.0.0:0,to=99 -display none -device cirrus-vga -global
vga.vram_size_mb=8
# top
Tasks: 134 total, 1 running, 133 sleeping, 0 stopped, 0 zombie
%Cpu(s): 16.6 us, 5.5 sy, 0.0 ni, 0.0 id, 77.9 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem: 354420 total, 348884 used, 5536 free, 184 buffers
KiB Swap: 17575932 total, 2642868 used, 14933064 free. 4132 cached Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
12297 root 20 0 6683864 192944 1140 S 20.6 54.4 2:25.51 qemu-syste+
# xen dmesg
(XEN) Xen version 4.4.1 (Debian 4.4.1-9) (waldi@debian.org) (gcc (Debian 4.9.2-10) 4.9.2) debug=n Mon Apr 6 18:24:28 UTC 2015
(XEN) Bootloader: GRUB 2.02~beta2-22
(XEN) Command line: placeholder dom0_mem=512M dom0_max_vcpus=1 dom0_vcpus_pin radeon.modeset=0 iommu=no-intremap
(XEN) Video information:
(XEN) VGA is text mode 80x25, font 8x16
(XEN) VBE/DDC methods: none; EDID transfer time: 2 seconds
(XEN) EDID info not retrieved because no DDC retrieval method detected
(XEN) Disc information:
(XEN) Found 1 MBR signatures
(XEN) Found 1 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN) 0000000000000000 - 000000000009f400 (usable)
(XEN) 000000000009f400 - 00000000000a0000 (reserved)
(XEN) 00000000000f0000 - 0000000000100000 (reserved)
(XEN) 0000000000100000 - 00000000cf62f000 (usable)
(XEN) 00000000cf62f000 - 00000000cf63c000 (ACPI data)
(XEN) 00000000cf63c000 - 00000000cf63d000 (usable)
(XEN) 00000000cf63d000 - 00000000d4000000 (reserved)
(XEN) 00000000fec00000 - 00000000fee10000 (reserved)
(XEN) 00000000ff800000 - 0000000100000000 (reserved)
(XEN) 0000000100000000 - 00000004affff000 (usable)
(XEN) ACPI: RSDP 000F4F00, 0024 (r2 HP )
(XEN) ACPI: XSDT CF630140, 00B4 (r1 HP ProLiant 2 Ò\x04 162E)
(XEN) ACPI: FACP CF630240, 00F4 (r3 HP ProLiant 2 Ò\x04 162E)
(XEN) ACPI: DSDT CF630340, 20BD (r1 HP DSDT 1 INTL 20030228)
(XEN) ACPI: FACS CF62F100, 0040
(XEN) ACPI: SPCR CF62F140, 0050 (r1 HP SPCRRBSU 1 Ò\x04 162E)
(XEN) ACPI: MCFG CF62F1C0, 003C (r1 HP ProLiant 1 0)
(XEN) ACPI: HPET CF62F200, 0038 (r1 HP ProLiant 2 Ò\x04 162E)
(XEN) ACPI: FFFF CF62F240, 0064 (r2 HP ProLiant 2 Ò\x04 162E)
(XEN) ACPI: SPMI CF62F2C0, 0040 (r5 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: ERST CF62F300, 01D0 (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: APIC CF62F500, 015E (r1 HP ProLiant 2 0)
(XEN) ACPI: SRAT CF62F680, 0570 (r1 HP Proliant 1 Ò\x04 162E)
(XEN) ACPI: FFFF CF62FC00, 0176 (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: BERT CF62FD80, 0030 (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: HEST CF62FDC0, 00BC (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: DMAR CF62FE80, 0150 (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: SSDT CF632400, 0125 (r3 HP CRSPCI0 2 HP 1)
(XEN) ACPI: SSDT CF632540, 01CF (r3 HP riser1a 2 INTL 20061109)
(XEN) ACPI: SSDT CF632740, 03BB (r1 HP pcc 1 INTL 20090625)
(XEN) ACPI: SSDT CF632B00, 0377 (r1 HP pmab 1 INTL 20090625)
(XEN) ACPI: SSDT CF632E80, 2094 (r1 INTEL PPM RCM 1 INTL 20061109)
(XEN) System RAM: 18421MB (18863928kB)
(XEN) Domain heap initialised
(XEN) Processor #0 6:12 APIC version 21
(XEN) Processor #16 6:12 APIC version 21
(XEN) Processor #4 6:12 APIC version 21
(XEN) Processor #20 6:12 APIC version 21
(XEN) Processor #2 6:12 APIC version 21
(XEN) Processor #18 6:12 APIC version 21
(XEN) Processor #1 6:12 APIC version 21
(XEN) Processor #17 6:12 APIC version 21
(XEN) Processor #5 6:12 APIC version 21
(XEN) Processor #21 6:12 APIC version 21
(XEN) Processor #3 6:12 APIC version 21
(XEN) Processor #19 6:12 APIC version 21
(XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
(XEN) IOAPIC[1]: apic_id 0, version 32, address 0xfec80000, GSI 24-47
(XEN) Enabling APIC mode: Phys. Using 2 I/O APICs
(XEN) Failed to get Error Log Address Range.
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2533.485 MHz processor.
(XEN) Initing memory sharing.
(XEN) Intel VT-d iommu 0 supported page sizes: 4kB.
(XEN) Intel VT-d Snoop Control not enabled.
(XEN) Intel VT-d Dom0 DMA Passthrough not enabled.
(XEN) Intel VT-d Queued Invalidation enabled.
(XEN) Intel VT-d Interrupt Remapping not enabled.
(XEN) Intel VT-d Shared EPT tables not enabled.
(XEN) I/O virtualisation enabled
(XEN) - Dom0 mode: Relaxed
(XEN) Interrupt remapping disabled
(XEN) Enabled directed EOI with ioapic_ack_old on!
(XEN) ENABLING IO-APIC IRQs
(XEN) -> Using old ACK method
(XEN) Platform timer is 14.318MHz HPET
(XEN) Allocated console ring of 32 KiB.
(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) - Unrestricted Guest
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging (HAP) detected
(XEN) HVM: HAP page sizes: 4kB, 2MB, 1GB
(XEN) Brought up 12 CPUs
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Xen kernel: 64-bit, lsb, compat32
(XEN) Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x1f18000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN) Dom0 alloc.: 000000049c000000->00000004a0000000 (110661 pages to be allocated)
(XEN) Init. ramdisk: 00000004aee45000->00000004afdff7d5
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN) Loaded kernel: ffffffff81000000->ffffffff81f18000
(XEN) Init. ramdisk: ffffffff81f18000->ffffffff82ed27d5
(XEN) Phys-Mach map: ffffffff82ed3000->ffffffff82fd3000
(XEN) Start info: ffffffff82fd3000->ffffffff82fd34b4
(XEN) Page tables: ffffffff82fd4000->ffffffff82ff1000
(XEN) Boot stack: ffffffff82ff1000->ffffffff82ff2000
(XEN) TOTAL: ffffffff80000000->ffffffff83400000
(XEN) ENTRY ADDRESS: ffffffff819021f0
(XEN) Dom0 has maximum 1 VCPUs
(XEN) Scrubbing Free RAM: .................................................................................................................................................................................done.
(XEN) Initial low memory virq threshold set at 0x4000 pages.
(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 284kB init memory.
# perf report
# To display the perf.data header info, please use --header/--header-only options.
#
# Samples: 6K of event 'cpu-clock'
# Event count (approx.): 1744250000
#
# Overhead Command Shared Object Symbol
# ........ ............... ....................... ....................................
#
8.69% qemu-system-i38 [kernel.kallsyms] [k] xen_hypercall_xen_version
2.29% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acac8
2.01% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acad9
1.53% qemu-system-i38 qemu-system-i386 [.] 0x00000000000ac978
1.33% qemu-system-i38 qemu-system-i386 [.] 0x00000000000ac989
1.02% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acaa4
0.93% qemu-system-i38 libc-2.19.so [.] memset
0.70% qemu-system-i38 qemu-system-i386 [.] 0x00000000000e2814
0.69% qemu-system-i38 qemu-system-i386 [.] 0x00000000000e37f4
0.67% qemu-system-i38 qemu-system-i386 [.] 0x00000000000aca40
0.66% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acadf
0.60% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acad7
0.59% qemu-system-i38 [vdso] [.] __vdso_clock_gettime
0.59% qemu-system-i38 qemu-system-i386 [.] 0x0000000000342b88
0.57% qemu-system-i38 [vdso] [.] __vdso_gettimeofday
0.52% qemu-system-i38 [kernel.kallsyms] [k] pvclock_clocksource_read
0.49% qemu-system-i38 qemu-system-i386 [.] 0x00000000000a9e45
0.46% qemu-system-i38 [kernel.kallsyms] [k] do_sys_poll
0.37% qemu-system-i38 [kernel.kallsyms] [k] hrtimer_init
0.36% qemu-system-i38 [kernel.kallsyms] [k] __fget
0.34% qemu-system-i38 [kernel.kallsyms] [k] ktime_get_ts
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1452904/+subscriptions
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Qemu-devel] [Bug 1452904] Re: High CPU in idle Windows guest
2015-05-07 21:07 [Qemu-devel] [Bug 1452904] [NEW] High CPU in idle Windows guest tglanfield
@ 2018-05-07 19:46 ` Thomas Huth
2018-07-07 4:17 ` Launchpad Bug Tracker
1 sibling, 0 replies; 3+ messages in thread
From: Thomas Huth @ 2018-05-07 19:46 UTC (permalink / raw)
To: qemu-devel
Looking through old bug tickets... can you still reproduce this issue
with the latest version of QEMU? Or could we close this ticket nowadays?
** Changed in: qemu
Status: New => Incomplete
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1452904
Title:
High CPU in idle Windows guest
Status in QEMU:
Incomplete
Bug description:
Hi,
I'm running a freshly installed Windows 7 domU on an up-to-date Debian
jessie machine running Xen 4.4.1-9. When the Windows machine is idle,
I'm seeing upwards of 10% CPU usage from the qemu-system-i386 instance.
Other Linux and FreeBSD machines register negligable CPU usage (<0.5%).
The server is an HP Proliant DL360 G7.
Data from perf attacthed to the process might give the best clues.
Any information as to why this processes is comsuming so much CPU would
be much appreciated.
Regards,
Terry.
# uname -a
Linux xen 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt9-3~deb8u1 (2015-04-24) x86_64 GNU/Linux
# lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 8.0 (jessie)
Release: 8.0
Codename: jessie
# qemu-system-i386 --version
QEMU emulator version 2.1.2 (Debian 1:2.1+dfsg-11), Copyright (c) 2003-2008 Fabrice Bellard
# cat win7.cfg
name = 'win7'
vcpus = '1'
memory = '4096'
builder = 'hvm'
disk = [ '/vms/xen/domains/desk_win7/disk1.img,qcow2,hda,rw',
'/vms/xen/domains/desk_win7/disk2.img,qcow2,hdb,rw' ]
vfb = [ 'vnc=1,vnclisten="0.0.0.0",sdl=0' ]
vif = [ 'mac=00:16:3E:FB:FC:39,bridge=xenbr0' ]
serial = 'pty'
vnc = 1
vnclisten = '0.0.0.0'
sdl = 0
usbdevice = 'mouse'
audio = 1
soundhw = 'sb16,es1370'
on_poweroff = 'destroy'
on_reboot = 'restart'
on_crash = 'restart'
# /usr/bin/qemu-system-i386 -nodefaults -name desk_win7 -boot
order=cda -usb -usbdevice mouse -device
rtl8139,id=nic0,netdev=net0,mac=00:16:3e:fb:fc:39 -netdev
type=tap,id=net0,ifname=vif12.0-emu,script=no,downscript=no -m 4088
-drive
file=/vms/xen/domains/desk_win7/disk1.img,if=ide,index=0,media=disk,format=qcow2,cache=writeback
-drive
file=/vms/xen/domains/desk_win7/disk2.img,if=ide,index=1,media=disk,format=qcow2,cache=writeback
-vnc 0.0.0.0:0,to=99 -display none -device cirrus-vga -global
vga.vram_size_mb=8
# top
Tasks: 134 total, 1 running, 133 sleeping, 0 stopped, 0 zombie
%Cpu(s): 16.6 us, 5.5 sy, 0.0 ni, 0.0 id, 77.9 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem: 354420 total, 348884 used, 5536 free, 184 buffers
KiB Swap: 17575932 total, 2642868 used, 14933064 free. 4132 cached Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
12297 root 20 0 6683864 192944 1140 S 20.6 54.4 2:25.51 qemu-syste+
# xen dmesg
(XEN) Xen version 4.4.1 (Debian 4.4.1-9) (waldi@debian.org) (gcc (Debian 4.9.2-10) 4.9.2) debug=n Mon Apr 6 18:24:28 UTC 2015
(XEN) Bootloader: GRUB 2.02~beta2-22
(XEN) Command line: placeholder dom0_mem=512M dom0_max_vcpus=1 dom0_vcpus_pin radeon.modeset=0 iommu=no-intremap
(XEN) Video information:
(XEN) VGA is text mode 80x25, font 8x16
(XEN) VBE/DDC methods: none; EDID transfer time: 2 seconds
(XEN) EDID info not retrieved because no DDC retrieval method detected
(XEN) Disc information:
(XEN) Found 1 MBR signatures
(XEN) Found 1 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN) 0000000000000000 - 000000000009f400 (usable)
(XEN) 000000000009f400 - 00000000000a0000 (reserved)
(XEN) 00000000000f0000 - 0000000000100000 (reserved)
(XEN) 0000000000100000 - 00000000cf62f000 (usable)
(XEN) 00000000cf62f000 - 00000000cf63c000 (ACPI data)
(XEN) 00000000cf63c000 - 00000000cf63d000 (usable)
(XEN) 00000000cf63d000 - 00000000d4000000 (reserved)
(XEN) 00000000fec00000 - 00000000fee10000 (reserved)
(XEN) 00000000ff800000 - 0000000100000000 (reserved)
(XEN) 0000000100000000 - 00000004affff000 (usable)
(XEN) ACPI: RSDP 000F4F00, 0024 (r2 HP )
(XEN) ACPI: XSDT CF630140, 00B4 (r1 HP ProLiant 2 Ò\x04 162E)
(XEN) ACPI: FACP CF630240, 00F4 (r3 HP ProLiant 2 Ò\x04 162E)
(XEN) ACPI: DSDT CF630340, 20BD (r1 HP DSDT 1 INTL 20030228)
(XEN) ACPI: FACS CF62F100, 0040
(XEN) ACPI: SPCR CF62F140, 0050 (r1 HP SPCRRBSU 1 Ò\x04 162E)
(XEN) ACPI: MCFG CF62F1C0, 003C (r1 HP ProLiant 1 0)
(XEN) ACPI: HPET CF62F200, 0038 (r1 HP ProLiant 2 Ò\x04 162E)
(XEN) ACPI: FFFF CF62F240, 0064 (r2 HP ProLiant 2 Ò\x04 162E)
(XEN) ACPI: SPMI CF62F2C0, 0040 (r5 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: ERST CF62F300, 01D0 (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: APIC CF62F500, 015E (r1 HP ProLiant 2 0)
(XEN) ACPI: SRAT CF62F680, 0570 (r1 HP Proliant 1 Ò\x04 162E)
(XEN) ACPI: FFFF CF62FC00, 0176 (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: BERT CF62FD80, 0030 (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: HEST CF62FDC0, 00BC (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: DMAR CF62FE80, 0150 (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: SSDT CF632400, 0125 (r3 HP CRSPCI0 2 HP 1)
(XEN) ACPI: SSDT CF632540, 01CF (r3 HP riser1a 2 INTL 20061109)
(XEN) ACPI: SSDT CF632740, 03BB (r1 HP pcc 1 INTL 20090625)
(XEN) ACPI: SSDT CF632B00, 0377 (r1 HP pmab 1 INTL 20090625)
(XEN) ACPI: SSDT CF632E80, 2094 (r1 INTEL PPM RCM 1 INTL 20061109)
(XEN) System RAM: 18421MB (18863928kB)
(XEN) Domain heap initialised
(XEN) Processor #0 6:12 APIC version 21
(XEN) Processor #16 6:12 APIC version 21
(XEN) Processor #4 6:12 APIC version 21
(XEN) Processor #20 6:12 APIC version 21
(XEN) Processor #2 6:12 APIC version 21
(XEN) Processor #18 6:12 APIC version 21
(XEN) Processor #1 6:12 APIC version 21
(XEN) Processor #17 6:12 APIC version 21
(XEN) Processor #5 6:12 APIC version 21
(XEN) Processor #21 6:12 APIC version 21
(XEN) Processor #3 6:12 APIC version 21
(XEN) Processor #19 6:12 APIC version 21
(XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
(XEN) IOAPIC[1]: apic_id 0, version 32, address 0xfec80000, GSI 24-47
(XEN) Enabling APIC mode: Phys. Using 2 I/O APICs
(XEN) Failed to get Error Log Address Range.
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2533.485 MHz processor.
(XEN) Initing memory sharing.
(XEN) Intel VT-d iommu 0 supported page sizes: 4kB.
(XEN) Intel VT-d Snoop Control not enabled.
(XEN) Intel VT-d Dom0 DMA Passthrough not enabled.
(XEN) Intel VT-d Queued Invalidation enabled.
(XEN) Intel VT-d Interrupt Remapping not enabled.
(XEN) Intel VT-d Shared EPT tables not enabled.
(XEN) I/O virtualisation enabled
(XEN) - Dom0 mode: Relaxed
(XEN) Interrupt remapping disabled
(XEN) Enabled directed EOI with ioapic_ack_old on!
(XEN) ENABLING IO-APIC IRQs
(XEN) -> Using old ACK method
(XEN) Platform timer is 14.318MHz HPET
(XEN) Allocated console ring of 32 KiB.
(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) - Unrestricted Guest
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging (HAP) detected
(XEN) HVM: HAP page sizes: 4kB, 2MB, 1GB
(XEN) Brought up 12 CPUs
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Xen kernel: 64-bit, lsb, compat32
(XEN) Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x1f18000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN) Dom0 alloc.: 000000049c000000->00000004a0000000 (110661 pages to be allocated)
(XEN) Init. ramdisk: 00000004aee45000->00000004afdff7d5
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN) Loaded kernel: ffffffff81000000->ffffffff81f18000
(XEN) Init. ramdisk: ffffffff81f18000->ffffffff82ed27d5
(XEN) Phys-Mach map: ffffffff82ed3000->ffffffff82fd3000
(XEN) Start info: ffffffff82fd3000->ffffffff82fd34b4
(XEN) Page tables: ffffffff82fd4000->ffffffff82ff1000
(XEN) Boot stack: ffffffff82ff1000->ffffffff82ff2000
(XEN) TOTAL: ffffffff80000000->ffffffff83400000
(XEN) ENTRY ADDRESS: ffffffff819021f0
(XEN) Dom0 has maximum 1 VCPUs
(XEN) Scrubbing Free RAM: .................................................................................................................................................................................done.
(XEN) Initial low memory virq threshold set at 0x4000 pages.
(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 284kB init memory.
# perf report
# To display the perf.data header info, please use --header/--header-only options.
#
# Samples: 6K of event 'cpu-clock'
# Event count (approx.): 1744250000
#
# Overhead Command Shared Object Symbol
# ........ ............... ....................... ....................................
#
8.69% qemu-system-i38 [kernel.kallsyms] [k] xen_hypercall_xen_version
2.29% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acac8
2.01% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acad9
1.53% qemu-system-i38 qemu-system-i386 [.] 0x00000000000ac978
1.33% qemu-system-i38 qemu-system-i386 [.] 0x00000000000ac989
1.02% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acaa4
0.93% qemu-system-i38 libc-2.19.so [.] memset
0.70% qemu-system-i38 qemu-system-i386 [.] 0x00000000000e2814
0.69% qemu-system-i38 qemu-system-i386 [.] 0x00000000000e37f4
0.67% qemu-system-i38 qemu-system-i386 [.] 0x00000000000aca40
0.66% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acadf
0.60% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acad7
0.59% qemu-system-i38 [vdso] [.] __vdso_clock_gettime
0.59% qemu-system-i38 qemu-system-i386 [.] 0x0000000000342b88
0.57% qemu-system-i38 [vdso] [.] __vdso_gettimeofday
0.52% qemu-system-i38 [kernel.kallsyms] [k] pvclock_clocksource_read
0.49% qemu-system-i38 qemu-system-i386 [.] 0x00000000000a9e45
0.46% qemu-system-i38 [kernel.kallsyms] [k] do_sys_poll
0.37% qemu-system-i38 [kernel.kallsyms] [k] hrtimer_init
0.36% qemu-system-i38 [kernel.kallsyms] [k] __fget
0.34% qemu-system-i38 [kernel.kallsyms] [k] ktime_get_ts
To manage notifications about this bug go to:
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^ permalink raw reply [flat|nested] 3+ messages in thread
* [Qemu-devel] [Bug 1452904] Re: High CPU in idle Windows guest
2015-05-07 21:07 [Qemu-devel] [Bug 1452904] [NEW] High CPU in idle Windows guest tglanfield
2018-05-07 19:46 ` [Qemu-devel] [Bug 1452904] " Thomas Huth
@ 2018-07-07 4:17 ` Launchpad Bug Tracker
1 sibling, 0 replies; 3+ messages in thread
From: Launchpad Bug Tracker @ 2018-07-07 4:17 UTC (permalink / raw)
To: qemu-devel
[Expired for QEMU because there has been no activity for 60 days.]
** Changed in: qemu
Status: Incomplete => Expired
--
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1452904
Title:
High CPU in idle Windows guest
Status in QEMU:
Expired
Bug description:
Hi,
I'm running a freshly installed Windows 7 domU on an up-to-date Debian
jessie machine running Xen 4.4.1-9. When the Windows machine is idle,
I'm seeing upwards of 10% CPU usage from the qemu-system-i386 instance.
Other Linux and FreeBSD machines register negligable CPU usage (<0.5%).
The server is an HP Proliant DL360 G7.
Data from perf attacthed to the process might give the best clues.
Any information as to why this processes is comsuming so much CPU would
be much appreciated.
Regards,
Terry.
# uname -a
Linux xen 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt9-3~deb8u1 (2015-04-24) x86_64 GNU/Linux
# lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 8.0 (jessie)
Release: 8.0
Codename: jessie
# qemu-system-i386 --version
QEMU emulator version 2.1.2 (Debian 1:2.1+dfsg-11), Copyright (c) 2003-2008 Fabrice Bellard
# cat win7.cfg
name = 'win7'
vcpus = '1'
memory = '4096'
builder = 'hvm'
disk = [ '/vms/xen/domains/desk_win7/disk1.img,qcow2,hda,rw',
'/vms/xen/domains/desk_win7/disk2.img,qcow2,hdb,rw' ]
vfb = [ 'vnc=1,vnclisten="0.0.0.0",sdl=0' ]
vif = [ 'mac=00:16:3E:FB:FC:39,bridge=xenbr0' ]
serial = 'pty'
vnc = 1
vnclisten = '0.0.0.0'
sdl = 0
usbdevice = 'mouse'
audio = 1
soundhw = 'sb16,es1370'
on_poweroff = 'destroy'
on_reboot = 'restart'
on_crash = 'restart'
# /usr/bin/qemu-system-i386 -nodefaults -name desk_win7 -boot
order=cda -usb -usbdevice mouse -device
rtl8139,id=nic0,netdev=net0,mac=00:16:3e:fb:fc:39 -netdev
type=tap,id=net0,ifname=vif12.0-emu,script=no,downscript=no -m 4088
-drive
file=/vms/xen/domains/desk_win7/disk1.img,if=ide,index=0,media=disk,format=qcow2,cache=writeback
-drive
file=/vms/xen/domains/desk_win7/disk2.img,if=ide,index=1,media=disk,format=qcow2,cache=writeback
-vnc 0.0.0.0:0,to=99 -display none -device cirrus-vga -global
vga.vram_size_mb=8
# top
Tasks: 134 total, 1 running, 133 sleeping, 0 stopped, 0 zombie
%Cpu(s): 16.6 us, 5.5 sy, 0.0 ni, 0.0 id, 77.9 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem: 354420 total, 348884 used, 5536 free, 184 buffers
KiB Swap: 17575932 total, 2642868 used, 14933064 free. 4132 cached Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
12297 root 20 0 6683864 192944 1140 S 20.6 54.4 2:25.51 qemu-syste+
# xen dmesg
(XEN) Xen version 4.4.1 (Debian 4.4.1-9) (waldi@debian.org) (gcc (Debian 4.9.2-10) 4.9.2) debug=n Mon Apr 6 18:24:28 UTC 2015
(XEN) Bootloader: GRUB 2.02~beta2-22
(XEN) Command line: placeholder dom0_mem=512M dom0_max_vcpus=1 dom0_vcpus_pin radeon.modeset=0 iommu=no-intremap
(XEN) Video information:
(XEN) VGA is text mode 80x25, font 8x16
(XEN) VBE/DDC methods: none; EDID transfer time: 2 seconds
(XEN) EDID info not retrieved because no DDC retrieval method detected
(XEN) Disc information:
(XEN) Found 1 MBR signatures
(XEN) Found 1 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN) 0000000000000000 - 000000000009f400 (usable)
(XEN) 000000000009f400 - 00000000000a0000 (reserved)
(XEN) 00000000000f0000 - 0000000000100000 (reserved)
(XEN) 0000000000100000 - 00000000cf62f000 (usable)
(XEN) 00000000cf62f000 - 00000000cf63c000 (ACPI data)
(XEN) 00000000cf63c000 - 00000000cf63d000 (usable)
(XEN) 00000000cf63d000 - 00000000d4000000 (reserved)
(XEN) 00000000fec00000 - 00000000fee10000 (reserved)
(XEN) 00000000ff800000 - 0000000100000000 (reserved)
(XEN) 0000000100000000 - 00000004affff000 (usable)
(XEN) ACPI: RSDP 000F4F00, 0024 (r2 HP )
(XEN) ACPI: XSDT CF630140, 00B4 (r1 HP ProLiant 2 Ò\x04 162E)
(XEN) ACPI: FACP CF630240, 00F4 (r3 HP ProLiant 2 Ò\x04 162E)
(XEN) ACPI: DSDT CF630340, 20BD (r1 HP DSDT 1 INTL 20030228)
(XEN) ACPI: FACS CF62F100, 0040
(XEN) ACPI: SPCR CF62F140, 0050 (r1 HP SPCRRBSU 1 Ò\x04 162E)
(XEN) ACPI: MCFG CF62F1C0, 003C (r1 HP ProLiant 1 0)
(XEN) ACPI: HPET CF62F200, 0038 (r1 HP ProLiant 2 Ò\x04 162E)
(XEN) ACPI: FFFF CF62F240, 0064 (r2 HP ProLiant 2 Ò\x04 162E)
(XEN) ACPI: SPMI CF62F2C0, 0040 (r5 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: ERST CF62F300, 01D0 (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: APIC CF62F500, 015E (r1 HP ProLiant 2 0)
(XEN) ACPI: SRAT CF62F680, 0570 (r1 HP Proliant 1 Ò\x04 162E)
(XEN) ACPI: FFFF CF62FC00, 0176 (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: BERT CF62FD80, 0030 (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: HEST CF62FDC0, 00BC (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: DMAR CF62FE80, 0150 (r1 HP ProLiant 1 Ò\x04 162E)
(XEN) ACPI: SSDT CF632400, 0125 (r3 HP CRSPCI0 2 HP 1)
(XEN) ACPI: SSDT CF632540, 01CF (r3 HP riser1a 2 INTL 20061109)
(XEN) ACPI: SSDT CF632740, 03BB (r1 HP pcc 1 INTL 20090625)
(XEN) ACPI: SSDT CF632B00, 0377 (r1 HP pmab 1 INTL 20090625)
(XEN) ACPI: SSDT CF632E80, 2094 (r1 INTEL PPM RCM 1 INTL 20061109)
(XEN) System RAM: 18421MB (18863928kB)
(XEN) Domain heap initialised
(XEN) Processor #0 6:12 APIC version 21
(XEN) Processor #16 6:12 APIC version 21
(XEN) Processor #4 6:12 APIC version 21
(XEN) Processor #20 6:12 APIC version 21
(XEN) Processor #2 6:12 APIC version 21
(XEN) Processor #18 6:12 APIC version 21
(XEN) Processor #1 6:12 APIC version 21
(XEN) Processor #17 6:12 APIC version 21
(XEN) Processor #5 6:12 APIC version 21
(XEN) Processor #21 6:12 APIC version 21
(XEN) Processor #3 6:12 APIC version 21
(XEN) Processor #19 6:12 APIC version 21
(XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
(XEN) IOAPIC[1]: apic_id 0, version 32, address 0xfec80000, GSI 24-47
(XEN) Enabling APIC mode: Phys. Using 2 I/O APICs
(XEN) Failed to get Error Log Address Range.
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 2533.485 MHz processor.
(XEN) Initing memory sharing.
(XEN) Intel VT-d iommu 0 supported page sizes: 4kB.
(XEN) Intel VT-d Snoop Control not enabled.
(XEN) Intel VT-d Dom0 DMA Passthrough not enabled.
(XEN) Intel VT-d Queued Invalidation enabled.
(XEN) Intel VT-d Interrupt Remapping not enabled.
(XEN) Intel VT-d Shared EPT tables not enabled.
(XEN) I/O virtualisation enabled
(XEN) - Dom0 mode: Relaxed
(XEN) Interrupt remapping disabled
(XEN) Enabled directed EOI with ioapic_ack_old on!
(XEN) ENABLING IO-APIC IRQs
(XEN) -> Using old ACK method
(XEN) Platform timer is 14.318MHz HPET
(XEN) Allocated console ring of 32 KiB.
(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) - Unrestricted Guest
(XEN) HVM: ASIDs enabled.
(XEN) HVM: VMX enabled
(XEN) HVM: Hardware Assisted Paging (HAP) detected
(XEN) HVM: HAP page sizes: 4kB, 2MB, 1GB
(XEN) Brought up 12 CPUs
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Xen kernel: 64-bit, lsb, compat32
(XEN) Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x1f18000
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN) Dom0 alloc.: 000000049c000000->00000004a0000000 (110661 pages to be allocated)
(XEN) Init. ramdisk: 00000004aee45000->00000004afdff7d5
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN) Loaded kernel: ffffffff81000000->ffffffff81f18000
(XEN) Init. ramdisk: ffffffff81f18000->ffffffff82ed27d5
(XEN) Phys-Mach map: ffffffff82ed3000->ffffffff82fd3000
(XEN) Start info: ffffffff82fd3000->ffffffff82fd34b4
(XEN) Page tables: ffffffff82fd4000->ffffffff82ff1000
(XEN) Boot stack: ffffffff82ff1000->ffffffff82ff2000
(XEN) TOTAL: ffffffff80000000->ffffffff83400000
(XEN) ENTRY ADDRESS: ffffffff819021f0
(XEN) Dom0 has maximum 1 VCPUs
(XEN) Scrubbing Free RAM: .................................................................................................................................................................................done.
(XEN) Initial low memory virq threshold set at 0x4000 pages.
(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 284kB init memory.
# perf report
# To display the perf.data header info, please use --header/--header-only options.
#
# Samples: 6K of event 'cpu-clock'
# Event count (approx.): 1744250000
#
# Overhead Command Shared Object Symbol
# ........ ............... ....................... ....................................
#
8.69% qemu-system-i38 [kernel.kallsyms] [k] xen_hypercall_xen_version
2.29% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acac8
2.01% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acad9
1.53% qemu-system-i38 qemu-system-i386 [.] 0x00000000000ac978
1.33% qemu-system-i38 qemu-system-i386 [.] 0x00000000000ac989
1.02% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acaa4
0.93% qemu-system-i38 libc-2.19.so [.] memset
0.70% qemu-system-i38 qemu-system-i386 [.] 0x00000000000e2814
0.69% qemu-system-i38 qemu-system-i386 [.] 0x00000000000e37f4
0.67% qemu-system-i38 qemu-system-i386 [.] 0x00000000000aca40
0.66% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acadf
0.60% qemu-system-i38 qemu-system-i386 [.] 0x00000000000acad7
0.59% qemu-system-i38 [vdso] [.] __vdso_clock_gettime
0.59% qemu-system-i38 qemu-system-i386 [.] 0x0000000000342b88
0.57% qemu-system-i38 [vdso] [.] __vdso_gettimeofday
0.52% qemu-system-i38 [kernel.kallsyms] [k] pvclock_clocksource_read
0.49% qemu-system-i38 qemu-system-i386 [.] 0x00000000000a9e45
0.46% qemu-system-i38 [kernel.kallsyms] [k] do_sys_poll
0.37% qemu-system-i38 [kernel.kallsyms] [k] hrtimer_init
0.36% qemu-system-i38 [kernel.kallsyms] [k] __fget
0.34% qemu-system-i38 [kernel.kallsyms] [k] ktime_get_ts
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-- links below jump to the message on this page --
2015-05-07 21:07 [Qemu-devel] [Bug 1452904] [NEW] High CPU in idle Windows guest tglanfield
2018-05-07 19:46 ` [Qemu-devel] [Bug 1452904] " Thomas Huth
2018-07-07 4:17 ` Launchpad Bug Tracker
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