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Re: DOMU Disk I/O

On 10 December 2012 01:09,  <gary%duzan.org@localhost> wrote:
>    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?

Hi Gary,

Are you running MP by any chance ? roger@ did some benchmarks and
there were no significant i/o related performance issues, so I'm


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