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Results of the Bonnie benchmark


The results of the Bonnie benchmark are presented in table gif.

Table: Results of the Bonnie benchmark

The results are very good in block oriented I/O: Ext2 fs outperforms other filesystems. This is clearly a benefit of the optimizations included in the allocation routines. Writes are fast because data is written in cluster mode. Reads are fast because contiguous blocks have been allocated to the file. Thus there is no head seek between two reads and the readahead optimizations can be fully used.

On the other hand, performance is better in the FreeBSD operating system in character oriented I/O. This is probably due to the fact that FreeBSD and Linux do not use the same stdio routines in their respective C libraries. It seems that FreeBSD has a more optimized character I/O library and its performance is better.

Andrew Anderson
Thu Mar 7 22:36:29 EST 1996