[Vm-dev] microsecond timing for GC work
John M McIntosh
johnmci at smalltalkconsulting.com
Mon Jan 18 18:20:07 UTC 2010
The incremental GC delta counter returns values like 181 microseconds on os-x for me.
On 2010-01-18, at 10:02 AM, David T. Lewis wrote:
> This all looks reasonable to me.
> The unix implementation is presumably straightforward. Windows is using
> GetTickCount() for ioMSecs(), so very likely it would be sufficient to
> use GetTickCount() * 1000 for ioMicroSeconds().
> As a sanity check though - I'm not sure that any of the platforms can
> actually measure a time resolution to accuracy greater than 1 msec.
> You may not be getting any practical benefit from reporting time to a
> precision greater than this.
John M. McIntosh <johnmci at smalltalkconsulting.com> Twitter: squeaker68882
Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com
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