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
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