[Vm-dev] getVMParameters broken

[Henrik Johansen]

On Aug 6, 2010, at 2:39 53PM, Adrian Lienhard wrote:

> 
> Hi,
> 
> In recent VMs (Mac and Unix), SmalltalkImage current vmStatisticsReportString is broken, in that it returns nonsense data for GC times:
> 
> ...
> GCs				1,145,798 (84ms between GCs)
> 	full			3914 totalling 723,736,998ms (755.3% uptime), avg 184909.8ms
> 	incr		1141884 totalling 248,056,609ms (258.9% uptime), avg 217.2ms
> 	tenures		14,222 (avg 80 GCs/tenure)
> Since last view	72 (49ms between GCs)
> 	uptime		3.5s
> 	full			0 totalling 0ms (0.0% uptime)
> 	incr		72 totalling 15,110ms (426.1% uptime), avg 209.9ms
> 	tenures		0 
> 
> 
> primitiveVMParameter in the most recent version of VMMaker package was changed. Does the image-side code need to be adapted or is this a bug in the primitive?
> 
> Thanks,
> Adrian
It's been changed to a microsecond clock value in recent VM's on Unix/Mac.
So yes, you have to adjust code in image based on which VM version / Platform you are running on to report a non-nonsense value consistently :) 

Cheers,
Henry