DOMU Disk I/O

[gary%duzan.org@localhost]

   I've been running a NetBSD VPS at prgmr.com for several years
now, and generally been pleased. However, recently I've noticed
that my disk I/O rates have been rather bad. The upgrade to 6.0_STABLE
was rather slow, and I regularly see "systat vm" report xbd0 %busy
at 100% with only a handful of transfers and sometimes under 100K
bytes. Is this likely to be a problem with the 6.0 DOMU or something
on the DOM0? Should I consider going back to 5.2?

   Thanks.

                                        Gary Duzan