X | between fsb |
---|---|
1.00 | 0-2 % |
0.90 | 2-30 % |
0.85 | 30-50 % |
0.80 | 50-85 % |
0.70 | 85-90 % |
0.60 | 90-94 % |
0.50 | 94-97 % |
0.30 | 97-98 % |
0.00 | 98-100 % |
I plan to extend the program that it not only creates new files, but also appends to existing
files. In a further step it should also measure read performance (which I am ignoring at the
moment).
Later on I will measure how the performance behaves with time: when reaching less 5-10 percent
of free blocks, let the program just invert the above table for the probability until reaching 90-95
percent of free blocks, then starting again with the normal table. If fragmentation effects show of, the
performance should become less with each cycle which one can show by dividing the result of each cycle-turn through
the result of the first cycle ("gauge") measurement.
FS type | # files | # Bytes | Int. Frag. |
---|---|---|---|
Reiser | 252738 | 4192538 KB | 6 % |
Reiser notail | 227190 | 3791069 KB | 14 % |
XFS | 225394 | 3757207 KB | 15 % |
JFS | 219376 | 3667703 KB | 17 % |
Ext3 | 208314 | 3482720 KB | 21 % |
C. Loizides