Tomas ?gren wrote: >> OK, so without much effort I can halve the disk IO from 6.5G to just >> over 3G, and cut the zone package install time from over 6 minutes to >> under 4. Given the crudeness of the hack, I wouldn't be surprised if it could >> be improved further. >> > > My question is: Why the ... should the entire file be rewritten over and over > again when only a small fraction of it is changed (when you install another > package)? If the same format is needed at the end of the install, why not let > each package install put its contents into separate files and when it's all > done, merge them. Writing 6.5GB for a file that is about 1/1000th of that is > just insane.. > > For instance Debian has a separate file for each package and that seems to > work just fine.. (and the install time is just a fraction of Solaris install > time) > The contents file is kept in sorted order - this is why the file has to be rewritten each time (to maintain the order of the entries).
You are correct that a good alternative would be to have a separate contents file for each package (in this case, when a package is installed, its contents file is stored in the same /var/sadm/pkg directory as the package itself). -GmG > /Tomas > > > This message posted from opensolaris.org > _______________________________________________ > install-discuss mailing list > install-discuss at opensolaris.org > http://opensolaris.org/mailman/listinfo/install-discuss >
