Some additional tests run on my performance testing
cguttesen at yahoo.dk
Sat Aug 30 05:49:35 PDT 2003
> Note that doing sequential reads and writes is VERY
> different from doing random reads and writes. In
> former case, a larger filesystem block size may
> fragmentation and help you, but in the latter
> case---specifically for writes---you're doing twice
> the I/O due to the larger filesystem blocks. Your
> import and Bill's tests fall into the first
> It would be interesting to see what sort of
> you get under a real workload.
Valid point you make there.
My db is up and running now with 16 kb blocks, but I'd
like to try it out with 8 kb blocks.
Can I simply do a file-copy of the database, newfs the
partition with 8 kb blocks, and copy the database back
to take advantage of the 8 kb blocksize?
Or do I have to dump, newfs, create and import the
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