12-14-2009
Corona688, thanks for your input. But I think you agree with me that that's not exaclty it. With strace I cannot see how exactly read/write API calls are mapped into block devide requests, next - a very important one - I cannot see how efficiently I utilize FS. For example on some filesystems I have to allocate file in large chunks and then fseek, on others I have to append, so on... - all these choises become obvious once I can see what's going on under the hood...
PS
I think once I found a tool that did exactly what I need by installing a driver under /proc but now I can't find it anymore...
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PYDF(1) General Commands Manual PYDF(1)
NAME
pydf - report colourised filesystem disk space usage
SYNOPSIS
pydf [options] [file]
DESCRIPTION
pydf is a python script that displays the amount of disk space available on the mounted filesystems, using different colours for different
types of filesystems. Output format is completely customizable.
If an optional
file argument is given, pydf displays just information about filesystem containing the file(s), otherwise it displays information
about all mounted filesystems.
OPTIONS
--help Show summary of options.
-v, --version
Show version of program.
-a, --all
include filesystems having 0 blocks
-h, --human-readable
print sizes in human readable format (e.g., 133K 2341M 2448G)
-H, --si
likewise, but use powers of 1000 not 1024
--block-size=SIZE
use SIZE-byte blocks
-k, --kilobytes
like --block-size=1024
-i, --inodes
show information about inodes instead of blocks
-l, --local
limit listing to local filesystems
-m, --megabytes
like --block-size=1048576
-g, --gigabytes
like --block-size=1073741824
--blocks
use filesystem native block size
--bw do not use colours
--mounts=FILE
file to get mount information from. On normal linux system, only /etc/mtab or /proc/mounts make sense. Use /proc/mounts when
/etc/mtab is corrupted or inaccessible (the output looks a bit weird in this case though)
-B, --show-binds
Show also mount --bind mounted filesystems.
BUGS
When running with python3, mountpoints with out-of-locale non ASCII names will not be displayed (due to inability of os.statvfs to use
bytes instead of strings).
FILES
/etc/pydfrc
main configuration file
~/.pydfrc
per-user configuration file
SEE ALSO
df(1)
AUTHOR
Radovan Garabik <garabik@kassiopeia.juls.savba.sk>
PYDF(1)