I was planning to use bonnie++
So, as I was starting to read the man pages I
really got stuck on the following section,
My comments and questions are preceeded by "***"
-n the number of files for the file creation test. This is measured in multiples of 1024 files.
This is because no-one will want to test less than
1024 files, and we need the extra space on braille
*** Why no one will want to test less than 1024 files ?
*** Could you explain the braille display, how bwide is a braille display ???
If the specified number is 0 then this test will
be skipped. The default for this test is to test
with 0 byte files. To use files of other sizes
you can specify number:max:min:num-directories
where max is the maximum size and min is the
minimum size (both default to 0 if not specified).
If minimum and maximum sizes are specified then
every file will have a random size from the
range min..max inclusive.
*** I keep reading this paragraph over and over
and over and I don't get it. Maybe because I'm
the type of guy that learns more by example...
(a polite way to say that i'm feeling dumb) Is there
some real usage examples somewhere ? I intended
to experiment on my own, but bonnie++ keeps
hagning and being caucht by init... (arg!)
*** BTW I use mandrake 8.1 with 2.4.13-12 Kernel
and the bonnie++-1.02-2mdk.i586.rpm dist.
Creating less than 1024 files should be very fast, even on file systems such as Ext2 which don't (currently) index directories. It should be so fast that it can't be accurately measured.
A braille display is 80 columns wide. Making a wider display would require a wider desk as the characters are about 5mm wide (needed to be able to feel them correctly). Also when reading a CRT you can quickly scan the line to see what's on it, someone who is reading braille has to move their fingers across the entire width of the display. So I doubt that wider braille displays will ever become popular.
Run "bonnie++ -s0 -n20" to test the creation of 20480 files in a directory.
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