Re: [Libguestfs] nbdkit: determining block size distribution
On Sun, Apr 24, 2022 at 06:44:04PM +0100, Nikolaus Rath wrote:
Hello,
I want to find out the request size distribution of NBD read, write,
and trim requests for a given workload. Background is that I want to
figure out the ideal block size for the backing storage used my an
nbdkit plugin.
It seems to me that the best way to get this information would be to
write an appropriate nbdkit filter, but I was surprised that the
stats filter output is rather rudimentary.
Would patches be accepted to add block size histograms? Or is there
a better way to do this?
Sounds like a good idea to extend the stats filter. It already prints
some summary lines, so it could print a histogram of block sizes
encountered too.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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