From: Yongjie Ren <855633@bugs.launchpad.net>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [Bug 855633] Re: guest boots up too slowly
Date: Wed, 26 Oct 2011 07:42:17 -0000 [thread overview]
Message-ID: <20111026074217.16927.86150.malone@soybean.canonical.com> (raw)
In-Reply-To: 20110921150906.15647.25873.malonedeb@chaenomeles.canonical.com
I found this bug in memory/queue branch of qemu.git on September 21st.
As some codes in memory branch were merged into master branch, the
master tree of qemu.git also has this issue now.
** Description changed:
- qemu.git commit: 6cc7686696f73ae87cadef4450776a488b0e0c8b
+ qemu.git (memory/queue branch) commit: 6cc7686696f73ae87cadef4450776a488b0e0c8b
+ or qemu.git (master branch) commit: 8843cf40c0f482949e6ae9d0119e45d6b96fe890
kvm.git commit: 7f914d61cd2156e34a7852462bb4932621f33a34
- It will costs about 180 seconds to booting up a rhel6 guest. But when I
- use qemu-kvm.git with commit a040d28b, the rhel6 guest can boot up in
- about 50 seconds. I did the comparative test in the same box and using
- the same command line to create a guest BTW, I tested qemu-kvm.git not
- qemu.git before kernel.org was down.
+ It will costs about 180 seconds to booting up a rhel6 guest. But when I use qemu.git with commit edbb7c0, the rhel6 guest can boot up in about 50 seconds. I did the comparative test in the same box and using the same command line to create a guest.
+ I found this bug in memory/queue branch of qemu.git on September 21st. As some codes in memory branch were merged into master branch, the master tree of qemu.git also has this issue now.
Reproduce steps:
----------------
- 1. to create a guest: qemu-system-x86_64 -m 1024 -smp 2 /root/rhel6.img
+ 1.with latest qemu.git master tree, to create a guest: qemu-system-x86_64 -m 1024 -smp 2 -hda /root/rhel6.img
(It maybe cost about 180 seconds to boot up.)
** Description changed:
qemu.git (memory/queue branch) commit: 6cc7686696f73ae87cadef4450776a488b0e0c8b
or qemu.git (master branch) commit: 8843cf40c0f482949e6ae9d0119e45d6b96fe890
kvm.git commit: 7f914d61cd2156e34a7852462bb4932621f33a34
It will costs about 180 seconds to booting up a rhel6 guest. But when I use qemu.git with commit edbb7c0, the rhel6 guest can boot up in about 50 seconds. I did the comparative test in the same box and using the same command line to create a guest.
I found this bug in memory/queue branch of qemu.git on September 21st. As some codes in memory branch were merged into master branch, the master tree of qemu.git also has this issue now.
+ I found the following log in master tree. And that merger maybe introduced this issue in master tree.
+ commit 36f490b176afab3096e9c2877b365354f67e269d
+ Merge: ebffe2a 0d95952
+ Author: Anthony Liguori <aliguori@us.ibm.com>
+ Date: Fri Oct 14 10:44:52 2011 -0500
+
+ Merge remote-tracking branch 'qemu-kvm-tmp/memory/batch' into
+ staging
+
+
Reproduce steps:
----------------
1.with latest qemu.git master tree, to create a guest: qemu-system-x86_64 -m 1024 -smp 2 -hda /root/rhel6.img
(It maybe cost about 180 seconds to boot up.)
** Changed in: qemu
Status: Invalid => New
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https://bugs.launchpad.net/bugs/855633
Title:
guest boots up too slowly
Status in QEMU:
New
Bug description:
qemu.git (memory/queue branch) commit: 6cc7686696f73ae87cadef4450776a488b0e0c8b
or qemu.git (master branch) commit: 8843cf40c0f482949e6ae9d0119e45d6b96fe890
kvm.git commit: 7f914d61cd2156e34a7852462bb4932621f33a34
It will costs about 180 seconds to booting up a rhel6 guest. But when I use qemu.git with commit edbb7c0, the rhel6 guest can boot up in about 50 seconds. I did the comparative test in the same box and using the same command line to create a guest.
I found this bug in memory/queue branch of qemu.git on September 21st. As some codes in memory branch were merged into master branch, the master tree of qemu.git also has this issue now.
I found the following log in master tree. And that merger maybe introduced this issue in master tree.
commit 36f490b176afab3096e9c2877b365354f67e269d
Merge: ebffe2a 0d95952
Author: Anthony Liguori <aliguori@us.ibm.com>
Date: Fri Oct 14 10:44:52 2011 -0500
Merge remote-tracking branch 'qemu-kvm-tmp/memory/batch' into
staging
Reproduce steps:
----------------
1.with latest qemu.git master tree, to create a guest: qemu-system-x86_64 -m 1024 -smp 2 -hda /root/rhel6.img
(It maybe cost about 180 seconds to boot up.)
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/855633/+subscriptions
next prev parent reply other threads:[~2011-10-26 7:50 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-21 15:09 [Qemu-devel] [Bug 855633] [NEW] guest boots up too slowly Yongjie Ren
2011-09-21 15:45 ` [Qemu-devel] [Bug 855633] " Yongjie Ren
2011-09-22 2:14 ` Zhi Yong Wu
2011-09-22 9:24 ` Avi Kivity
2011-09-23 12:31 ` Yongjie Ren
2011-09-30 1:00 ` Yongjie Ren
2011-10-26 7:42 ` Yongjie Ren [this message]
2011-11-02 8:59 ` Yongjie Ren
2011-11-02 9:03 ` Yongjie Ren
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