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 Read my programming and virtualization blog: http://rwmj.wordpress.com libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://libguestfs.org _______________________________________________ Libguestfs mailing list [email protected] https://listman.redhat.com/mailman/listinfo/libguestfs
