[oi-dev] Running a debug kernel

[Liam Slusser]

Scott -

Oh wow, thank you so much for the reply.  I'll run on the debug kernel for
a few days to make sure it is stable and then rebuild with no debug.

thanks,
liam



On Wed, Jul 9, 2014 at 9:59 PM, Scott McClung <scott at mcclung.com> wrote:

> * Liam Slusser (lslusser at gmail.com) [140709 05:55]:
> > Does running a debug kernel cause a performance impact?  Basically I
> build
> > a nightly image with debugging enabled (defaults) and all seems to work
> > great but I'm wondering if there is a performance penalty and I should
> > rebuild without debugging?
>
> I am not an OI developer, but I had reason to build my own
> illumos-gate a few months ago for testing a patch I thought might help
> my particular workload.  I found that the debug build was much slower,
> on the order of 1/5th the I/O performance of a non-debug build for our
> iozone benchmarks.
>
> --
> Scott McClung (scott at mcclung.com)
>
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