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[Xen-bugs] [Bug 1551] New: IA32e guest boot up time is 1.3 times than be

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Subject: [Xen-bugs] [Bug 1551] New: IA32e guest boot up time is 1.3 times than before on Xeon 5400
From: bugzilla-daemon@xxxxxxxxxxxxxxxxxxx
Date: Fri, 11 Dec 2009 06:53:21 -0800
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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1551

           Summary: IA32e guest boot up time is 1.3 times than before on
                    Xeon 5400
           Product: Xen
           Version: unstable
          Platform: Other
        OS/Version: Linux-2.6
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Linux-pv_ops dom0
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: jiajun.xu@xxxxxxxxx


Environment:
------------
Service Arch (ia32/ia32e/IA64): ia32e
Guest Arch (ia32/ia32e/IA64): ia32/ia32e
Guest OS Type (Linux/Windows): Linux/Windows
Change Set: 20141
Hardware: Stoakley
Other:

xen-changeset:   20141:b4fcb5f632dc

pvops git:
commit 2b8a8d4a6bcd0ae035ed0fbce8cc96188ac77fb8
Merge: e676496... 32144d4...
Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>

ioemu git:
commit a83d119cfcc20bc7edb427992d6e31b3e99430be
Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date:   Mon Aug 10 18:02:56 2009 +0100

Host kernel: 2.6.31-rc6

Bug detailed description:
--------------------------
Since xen c/s 20141, ia32e guest boot up time on Stoakley always takes about
130 seconds. While in old xen c/s 20128, the boot up time is always below
around 100 seconds. There is no such issue on IA32pae and NHM platform.

The old good c/s info:

xen-changeset:   20128:e8004f6c254a

pvops git:
commit 16529fc075a95a84901842f7353ac906cd912bba
Merge: 5d78a20... 3186c67...
Author: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>

ioemu git:
commit a83d119cfcc20bc7edb427992d6e31b3e99430be
Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date:   Mon Aug 10 18:02:56 2009 +0100

Host kernel: 2.6.31-rc6

The config file I used to create guest is as following:
kernel = "hvmloader"
builder='hvm'
memory = 256
name = "vCPL_MEM_02_1260524420"
pae=1
acpi=1
apic=1
vif = [ 'type=ioemu, mac=00:16:3e:32:c1:c3, bridge=xenbr4' ]
disk = [ 'tap:qcow:/share/xvs/var/img.vmxCPL_MEM_02,hda,w', ',hdc:cdrom,r' ]
device_model = 'qemu-dm'
sdl=0
opengl=1
vnc=1
vncpasswd=''
stdvga=0
serial='pty'
hap=1
hpet=0


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