Test on ext3 (Karmic upgraded to Lucid), 5400rpm notebook hd. Note that i think in addition to dropping the caches, we have to sync before running the test to get somewhat stable results.
Commands used (as root):
sync; echo 3 > /proc/sys/vm/drop_caches; time dpkg -i /var/cache/apt/archives/openoffice.org-common_1%3a3.2.0-7ubuntu4_all.deb | ts
sync; echo 3 > /proc/sys/vm/drop_caches; time dpkg -i /var/cache/apt/archives/ubuntu-docs_10.04.3_all.deb | ts
Results, old dpkg (1.15.5.6ubuntu4):
openoffice.org-common: 26s unpack, 93s real
ubuntu-docs: 24s unpack, 51s real
Results, Colin's PPA dpkg (1.15.5.6ubuntu5~ppa1):
openoffice.org-common: 31s unpack, 94s real
ubuntu-docs: 23s unpack, 54s real
So ext3 doesn't care at all - it's not regressing at least.
Test on ext3 (Karmic upgraded to Lucid), 5400rpm notebook hd. Note that i think in addition to dropping the caches, we have to sync before running the test to get somewhat stable results.
Commands used (as root): vm/drop_ caches; time dpkg -i /var/cache/ apt/archives/ openoffice. org-common_ 1%3a3.2. 0-7ubuntu4_ all.deb | ts vm/drop_ caches; time dpkg -i /var/cache/ apt/archives/ ubuntu- docs_10. 04.3_all. deb | ts
sync; echo 3 > /proc/sys/
sync; echo 3 > /proc/sys/
Results, old dpkg (1.15.5.6ubuntu4): org-common: 26s unpack, 93s real
openoffice.
ubuntu-docs: 24s unpack, 51s real
Results, Colin's PPA dpkg (1.15.5. 6ubuntu5~ ppa1): org-common: 31s unpack, 94s real
openoffice.
ubuntu-docs: 23s unpack, 54s real
So ext3 doesn't care at all - it's not regressing at least.