Hi, On Thursday 03,March,2011 12:02 AM, Marius Vollmer wrote: > [...] > - Instead, we move all packages that are to be unpacked into > half-installed / reinstreq before touching the first one, and put a > big sync() right before carefully writing /var/lib/dpkg/status. Could we somehow avoid using sync()? sync() syncs all mounted filesystems, which isn't exactly very friendly when you have a few slow-syncing filesystems like btrfs (or even NFS) mounted. I recall my schroots that ran on tmpfs unpacking exceptionally slowly due to this issue until I stuck libeatmydata (or a variant of it) onto the schroots' dpkgs. I actually recall there being some things mentioned about FS_IOC_SYNCFS (lkml thread[1], dpkg-devel thread[2]) for faster per-filesystem syncing, but that seems to have died of natural causes last year. > [...] [1] http://thread.gmane.org/gmane.linux.file-systems/44628 [2] http://lists.debian.org/debian-dpkg/2010/11/msg00069.html -- Kind regards, Loong Jin
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