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Diffstat (limited to 'results/classifier/gemma3:12b/performance/1794285')
| -rw-r--r-- | results/classifier/gemma3:12b/performance/1794285 | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/results/classifier/gemma3:12b/performance/1794285 b/results/classifier/gemma3:12b/performance/1794285 new file mode 100644 index 00000000..c49dbfbf --- /dev/null +++ b/results/classifier/gemma3:12b/performance/1794285 @@ -0,0 +1,101 @@ + +100% Host CPU usage while guest idling + +Hi, + +We have an appliance that runs a FreeBSD guest on a Yocto-based host via qemu-system-x86_64. +Everything functions fine however the host uses n00% of the CPU (where n = #smp) and RAM allocated to it whilst the 1 guest is sat nearing idle. + +Host: +PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND +4406 root 20 0 16.7g 16g 26m S 500 53.0 17958:38 qemu-system-x86 + +Guest: +CPU 0: 0.0% user, 0.0% nice, 0.4% system, 0.0% interrupt, 99.6% idle +CPU 1: 0.0% user, 0.0% nice, 0.4% system, 0.0% interrupt, 99.6% idle +CPU 2: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle +CPU 3: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 100% idle +CPU 4: 0.4% user, 0.0% nice, 0.0% system, 0.0% interrupt, 99.6% idle +Mem: 43M Active, 4783M Inact, 1530M Wired, 911M Buf, 9553M Free +Swap: 3072M Total, 3072M Free + +I have logged this with the appliance vendor and received the response: +"This is expected behaviour and you will see the same in any case where a Guest OS runs over a Host OS. +Host here has 5 CPUs and it has assigned all of them to Guest. +Since the Host is not being shared by any Guest OS; you will always see the 500% (or the 5 CPUs) given to qemu-system-x86. +I do see the same in lab and is very much expected" + +This feels fundamentally wrong to me. +I'm somewhat limited by what can be tested due to the nature of this being an appliance rather than a mainstream distro. + +I'm looking for feedback that I can use to push the vendor into investigating this issue. + +Versions below. + +Many thanks, +Gareth + + + +Host: +Linux 204a-node 3.10.100-ovp-rt110-WR6.0.0.31_preempt-rt #1 SMP Fri +Aug 3 01:59:01 PDT 2018 x86_64 x86_64 x86_64 GNU/Linux + +Qemu: +QEMU emulator version 1.7.2, Copyright (c) 2003-2008 Fabrice Bellard + +Command: +(Vendor identifying information has been removed) + +/usr/bin/qemu-system-x86_64 \ +-name REMOVED \ +-S \ +-machine pc-i440fx-1.7,accel=kvm,usb=off \ +-m 16384 \ +-realtime mlock=on \ +-smp 5,sockets=5,cores=1,threads=1 \ +-uuid 76277b29-3bd4-4dd4-a705-ed34d6449d6d \ +-nographic \ +-no-user-config \ +-nodefaults \ +-chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/REMOVED.monitor,server,nowait \ +-mon chardev=charmonitor,id=monitor,mode=control \ +-rtc base=utc \ +-no-shutdown \ +-boot strict=on \ +-device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \ +-device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x17 \ +-netdev tap,fd=22,id=hostnet0,vhost=on,vhostfd=23 \ +-device virtio-net-pci,netdev=hostnet0,id=net0,mac=REMOVED,bus=pci.0,addr=0x11 \ +-netdev tap,ifname=tap1,script=/etc/vehostd/XXX-em3-ifup,id=hostnet1,vhost=on,vhostfd=24 \ +-device virtio-net-pci,netdev=hostnet1,id=net1,mac=REMOVED,bus=pci.0,addr=0x12 \ +-netdev tap,ifname=tap2,script=/etc/vehostd/REMOVED-em4-ifup-SUMMIT,id=hostnet2,vhost=on,vhostfd=25 \ +-device virtio-net-pci,netdev=hostnet2,id=net2,mac=REMOVED,bus=pci.0,addr=0x1c \ +-netdev tap,ifname=tap3,script=/etc/vehostd/REMOVED-em4-re-re-ifup,id=hostnet3,vhost=on,vhostfd=26 \ +-device virtio-net-pci,netdev=hostnet3,id=net3,mac=REMOVED,bus=pci.0,addr=0x1d \ +-chardev pty,id=charserial0 \ +-device isa-serial,chardev=charserial0,id=serial0 \ +-chardev tty,id=charserial1,path=/dev/ttyS1 \ +-device isa-serial,chardev=charserial1,id=serial1 \ +-chardev tty,id=charserial2,path=/dev/ttyS2 \ +-device isa-serial,chardev=charserial2,id=serial2 \ +-chardev tty,id=charserial3,path=/dev/ttyS3 \ +-device isa-serial,chardev=charserial3,id=serial3 \ +-device i6300esb,id=watchdog0,bus=pci.0,addr=0x10 \ +-watchdog-action reset \ +-object rng-random,id=rng0,filename=/dev/random \ +-device virtio-rng-pci,rng=rng0,max-bytes=1024,period=2000,bus=pci.0,addr=0x1e \ +-smbios type=0,vendor="INSYDE Corp.",version=REMOVED,date=11/03/2017,release=1.00 \ +-smbios type=1,manufacturer=REMOVED,product=REMOVED,version=REMOVED,serial=VF-NET \ +-device REMOVED-pci,host=0000:1c:00.0 \ +-device kvm-pci-assign,host=0000:00:14.0 \ +-device pci-hgcommdev,vmindex=0,bus=pci.0,addr=0x16 \ +-drive file=/REMOVED/REMOVED-current.img,if=none,id=drive-virtio-disk0,format=raw,cache=directsync,aio=native \ +-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x13,drive=drive-virtio-disk0,id=virtio-disk0,config-wce=off,x-data-plane=on,bootindex=1 \ +-drive file=/REMOVED/REMOVED-var-config.img,if=none,id=drive-virtio-disk1,format=raw,cache=directsync,aio=native \ +-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x15,drive=drive-virtio-disk1,id=virtio-disk1,config-wce=off,x-data-plane=on,bootindex=-1 \ +-drive file=/REMOVED/REMOVED-aux-disk.img,if=none,id=drive-ide0-0-1,format=raw,cache=directsync,discard=unmap \ +-device ide-hd,bus=ide.0,unit=1,drive=drive-ide0-0-1,id=ide0-0-1,bootindex=-1 \ +-drive file=/REMOVED/images/0/REMOVED-platform.img,if=none,id=drive-ide1-0-1,format=raw,cache=directsync,discard=unmap \ +-device ide-hd,bus=ide.1,unit=1,drive=drive-ide1-0-1,id=ide1-0-1,bootindex=-1 \ +-msg timestamp=on \ No newline at end of file |