* btrfs and apt package manager in ubuntu
@ 2010-10-31 13:17 Abdullah Ansari
2010-10-31 16:21 ` Christian
0 siblings, 1 reply; 4+ messages in thread
From: Abdullah Ansari @ 2010-10-31 13:17 UTC (permalink / raw)
To: linux-btrfs
it's very slow in installtion with apt in ubuntu
--
Abdullah Ansari <ahemta@gmail.com>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: btrfs and apt package manager in ubuntu
2010-10-31 13:17 btrfs and apt package manager in ubuntu Abdullah Ansari
@ 2010-10-31 16:21 ` Christian
2010-11-01 8:10 ` Mike Hommey
0 siblings, 1 reply; 4+ messages in thread
From: Christian @ 2010-10-31 16:21 UTC (permalink / raw)
To: linux-btrfs
On Sun, 2010-10-31 at 16:17 +0300, Abdullah Ansari wrote:
> it's very slow in installtion with apt in ubuntu
I'm seeing the same thing. When installing using apt the disk grinds
"forever" before the installation completes. I have two identical
laptops running Linux Mint 10 (rc) with similar disk layout except that
one has two btrfs partitions while the other only has ext4. The one with
btrfs takes at least 10 times longer to install updates on than the ext4
one.
--
//Christian
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: btrfs and apt package manager in ubuntu
2010-10-31 16:21 ` Christian
@ 2010-11-01 8:10 ` Mike Hommey
0 siblings, 0 replies; 4+ messages in thread
From: Mike Hommey @ 2010-11-01 8:10 UTC (permalink / raw)
To: Christian; +Cc: linux-btrfs
On Sun, Oct 31, 2010 at 11:21:36AM -0500, Christian wrote:
> On Sun, 2010-10-31 at 16:17 +0300, Abdullah Ansari wrote:
> > it's very slow in installtion with apt in ubuntu
>
> I'm seeing the same thing. When installing using apt the disk grinds
> "forever" before the installation completes. I have two identical
> laptops running Linux Mint 10 (rc) with similar disk layout except that
> one has two btrfs partitions while the other only has ext4. The one with
> btrfs takes at least 10 times longer to install updates on than the ext4
> one.
That's because dpkg uses sync when unpacking each package.
Mike
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: btrfs and apt package manager in ubuntu
@ 2010-11-05 11:25 Tomasz Chmielewski
0 siblings, 0 replies; 4+ messages in thread
From: Tomasz Chmielewski @ 2010-11-05 11:25 UTC (permalink / raw)
To: linux-btrfs
> On Sun, Oct 31, 2010 at 11:21:36AM -0500, Christian wrote:
>> On Sun, 2010-10-31 at 16:17 +0300, Abdullah Ansari wrote:
>> > it's very slow in installtion with apt in ubuntu
>>
>> I'm seeing the same thing. When installing using apt the disk grinds
>> "forever" before the installation completes. I have two identical
>> laptops running Linux Mint 10 (rc) with similar disk layout except that
>> one has two btrfs partitions while the other only has ext4. The one with
>> btrfs takes at least 10 times longer to install updates on than the ext4
>> one.
>
> That's because dpkg uses sync when unpacking each package.
It's also quite painful when one runs a virtual machine (KVM) which has
a btrfs filesystem (the virtual machine disk being itself on host's ext4).
While updating or installing a large number of packages (i.e. 50-100 MB)
on a guest with btrfs filesystem, you can _really_ feel it on the host
(system load - 10-20 or more) and other virtual machines (i.e. SSH times
out when trying to log in to other virtual machines).
--
Tomasz Chmielewski
http://wpkg.org
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2010-11-05 11:25 UTC | newest]
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2010-10-31 13:17 btrfs and apt package manager in ubuntu Abdullah Ansari
2010-10-31 16:21 ` Christian
2010-11-01 8:10 ` Mike Hommey
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2010-11-05 11:25 Tomasz Chmielewski
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