Package: bsc
Version: 2.21-1
Severity: wishlist
On a big 'ext3' file system, running 'Operations>Tree of Directories'
from the '/' dir can take minutes. (For 'inode' based file
systems, fetching complete directory trees is expensive.)
If 'bsc' fetches a tree of '/' and (minutes later) the user selects a
dir, 'bsc' changes to that dir, then forgets the tree. If the user
wants to use the tree again, 'bsc' spends minutes re-fetching it. It
would be better if such hard-earned data were cached, perhaps with a
config option to turn off caching.
The 'bsc' method of listing directories in real-time is inefficient.
It seems to work like this:
1) Internally get a list of dirs 'L' in the start directory.
2) n=1
3) let n=n+1
4) Does 'L(n)' have subdirs?
a) No, so display 'L(n)' as a branch, and goto step #3.
b) Yes, display 'L(n)' as a branch with a plus sign,
and start from step #1 for its dirs.
So if user wants an overview one branch deep, they have to wait for the
deepest levels to be found.
It would be better if 'bsc' had a config option to set how deep to
search. A default depth of 1 seems reasonable. So when a plus sign is
clicked it would list just that dir.
If it matters, some background on my system:
# approximately how many files?
% locate '*'| wc -l
359933
# ...how many dirs? (slow.)
% locate '*'| while read x ; do [ -d "$x" ] && echo "$x" ; done | wc -l
26150
# how many levels deep? (slow.)
% locate '*' | while read x ; do IFS=/ ; set $x ; echo $# ; done | sort -gu
| tail -n 1
15
Hope this helps...
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/dash
Kernel: Linux 2.6.16-2-686
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) (ignored: LC_ALL set to C)
Versions of packages bsc depends on:
ii libc6 2.3.6-15 GNU C Library: Shared libraries
ii libgcc1 1:4.1.1-5 GCC support library
ii libqt3-mt 3:3.3.6-2 Qt GUI Library (Threaded runtime v
ii libstdc++6 4.1.1-5 The GNU Standard C++ Library v3
ii libx11-6 2:1.0.0-6 X11 client-side library
ii libxext6 1:1.0.0-4 X11 miscellaneous extension librar
bsc recommends no packages.
-- no debconf information
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