From: Gleb Natapov <gleb@redhat.com>
To: David Cure <kvm@cure.nom.fr>
Cc: Avi Kivity <avi@redhat.com>,
kvm@vger.kernel.org, Vadim Rozenfeld <vrozenfe@redhat.com>
Subject: Re: performance trouble
Date: Thu, 16 Feb 2012 11:01:26 +0200 [thread overview]
Message-ID: <20120216090126.GC19771@redhat.com> (raw)
In-Reply-To: <20120216085553.GX26955@nfs-rbx.ovh.net>
On Thu, Feb 16, 2012 at 09:55:53AM +0100, David Cure wrote:
> hello,
>
> Le Tue, Feb 14, 2012 at 03:40:30PM +0200, Gleb Natapov ecrivait :
> >
> > Try to add -no-hpet to qemu command line and see if it helps.
>
> I add this line in my xml definition for libvirt :
>
> <timer name='hpet' present='no'/> in the clock block. And I see
> the -no-hpet in the command line :
>
> /usr/bin/kvm -S -M pc-1.0 -enable-kvm -m 16384 -smp
> 2,sockets=2,cores=1,threads=1 -name rds1 -uuid
> 4f72a64e-de1a-b3da-adac-5dffdb9eb6aa -nodefconfig -nodefaults -chardev
> socket,id=charmonitor,path=/var/lib/libvirt/qemu/rds1.monitor,server,nowait
> -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime
> -no-hpet -no-shutdown -drive
> file=/dev/drbd1,if=none,id=drive-virtio-disk0,format=raw,cache=none,aio=native
> -device
> virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1
> -drive
> file=/Iso/SW_DVD5_Windows_Svr_DC_EE_SE_Web_2008R2_64-bit_French_X15-59758.ISO,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw
> -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0
> -netdev tap,fd=18,id=hostnet0 -device
> virtio-net-pci,netdev=hostnet0,id=net0,mac=00:16:36:0c:a1:c4,bus=pci.0,addr=0x3
> -chardev pty,id=charserial0 -device
> isa-serial,chardev=charserial0,id=serial0 -usb -device
> usb-tablet,id=input0 -vnc 127.0.0.1:0 -k fr -vga std -device
> virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5
>
> But unfortunatly, the result is the same : always 12s to runs
> this function (to remember 8s on ESXi 4).
>
Can you do the trace again with -no-hpet on the command line?
--
Gleb.
next prev parent reply other threads:[~2012-02-16 9:01 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-23 8:28 performance trouble David Cure
2012-01-23 10:04 ` David Cure
2012-01-30 15:36 ` David Cure
2012-01-30 16:20 ` Brian Jackson
2012-01-30 16:51 ` David Cure
2012-01-30 17:21 ` Avi Kivity
2012-01-31 17:15 ` David Cure
2012-01-31 17:21 ` Avi Kivity
2012-02-02 10:41 ` David Cure
2012-02-03 8:59 ` David Cure
2012-02-05 9:38 ` Avi Kivity
2012-02-10 10:09 ` David Cure
2012-02-14 13:32 ` Avi Kivity
2012-02-14 13:40 ` Gleb Natapov
2012-02-16 8:55 ` David Cure
2012-02-16 9:01 ` Gleb Natapov [this message]
2012-02-17 8:59 ` David Cure
2012-02-17 10:07 ` Gleb Natapov
2012-02-17 14:01 ` David Cure
2012-02-19 9:13 ` Gleb Natapov
2012-02-22 16:33 ` David Cure
2012-02-22 16:58 ` David Cure
2012-02-23 8:38 ` Gleb Natapov
2012-03-16 10:13 ` David Cure
2012-03-19 10:51 ` Gleb Natapov
2012-03-20 9:32 ` David Cure
2012-03-20 9:45 ` Gleb Natapov
2012-03-20 11:18 ` David Cure
2012-03-20 12:38 ` Gleb Natapov
2012-03-21 11:10 ` David Cure
2012-03-21 17:31 ` Peter Lieven
2012-03-22 7:53 ` Gleb Natapov
2012-03-22 7:57 ` Peter Lieven
2012-03-22 8:35 ` David Cure
2012-03-22 8:33 ` David Cure
2012-03-22 8:50 ` Peter Lieven
2012-03-22 8:48 ` Vadim Rozenfeld
2012-03-22 8:52 ` Peter Lieven
2012-03-22 9:38 ` Vadim Rozenfeld
2012-03-26 17:00 ` Peter Lieven
2012-03-26 17:46 ` Vadim Rozenfeld
2012-03-26 17:52 ` Gleb Natapov
2012-03-26 18:36 ` Vadim Rozenfeld
2012-03-26 18:54 ` Peter Lieven
2012-03-26 20:11 ` Vadim Rozenfeld
2012-03-27 8:56 ` Gleb Natapov
2012-03-27 9:23 ` Vadim Rozenfeld
2012-03-27 9:24 ` Gleb Natapov
2012-03-27 9:26 ` Peter Lieven
2012-03-27 10:00 ` Gleb Natapov
2012-03-27 12:20 ` Peter Lieven
2012-03-27 12:26 ` Gleb Natapov
2012-03-27 12:28 ` Peter Lieven
2012-03-27 12:29 ` Gleb Natapov
2012-03-27 12:30 ` Peter Lieven
2012-03-27 14:06 ` Peter Lieven
2012-03-27 15:44 ` Vadim Rozenfeld
2012-03-27 15:58 ` Peter Lieven
2012-03-27 16:12 ` Vadim Rozenfeld
2012-03-27 16:16 ` Peter Lieven
2012-03-27 17:06 ` Vadim Rozenfeld
2012-03-28 8:38 ` Peter Lieven
2012-03-27 10:40 ` Vadim Rozenfeld
2012-03-27 10:49 ` Peter Lieven
2012-03-27 11:43 ` Vadim Rozenfeld
2012-03-27 14:44 ` Peter Lieven
2012-03-27 15:37 ` Vadim Rozenfeld
2012-03-27 15:39 ` Peter Lieven
2012-03-27 15:55 ` Vadim Rozenfeld
2012-03-22 8:31 ` David Cure
2012-03-22 8:47 ` Peter Lieven
2012-02-14 13:48 ` Vadim Rozenfeld
2012-02-16 9:10 ` David Cure
2012-02-17 15:27 ` David Cure
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