[Bug 570805] Re: [regression] dpkg fsync cause massive regression in Ubuntu Server and Alternate installation times

[Martin Pitt]

I ran some tests on my Dell Latitude D430, which has ext4 and a ridiculously slo
w hard disk. I tested with:

$ echo 3 | sudo tee /proc/sys/vm/drop_caches; sudo dpkg -i
/var/cache/apt/archives/openoffice.org-common_1%3a3.2.0-7ubuntu4_all.deb
| ts

old dpkg:
openoffice.org-common: 56s unpack, 25s config/triggers
ubuntu-docs: 25s unpack, 4s config

Colin's PPA dpkg:
openoffice.org-common: 23s unpack, 23s config/triggers
ubuntu-docs: 23s unpack, 4s config

So it makes quite a difference for the unpacking of openoffice.org-
common (2860 files, huge), and not so much for ubuntu-docs (7454 files,
smaller)

-- 
[regression] dpkg fsync cause massive regression in Ubuntu Server and Alternate installation times
https://bugs.launchpad.net/bugs/570805
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