Re: Busy doing nothing
Re: Busy doing nothing
- Subject: Re: Busy doing nothing
- From: Phil <email@hidden>
- Date: Sat, 30 Aug 2008 01:57:06 +1200
On Fri, Aug 29, 2008 at 9:42 PM, Gerriet M. Denkmann
<email@hidden> wrote:
> If I add these magic lines it will use 0.2% of my Cpu just doing nothing:
>
> NSMetadataQuery *query = [ [ NSMetadataQuery alloc] init];
> [ query startQuery ];
> [ query stopQuery ];
> NSArray *results = [ query results ]; //
> _NSMetadataQueryResultArray
> [ query release ];
>
> From now on until quit I get every 100 msec one Context Switch and two Mach
> System Calls - as observed via Activity Monitor.
>
It's noted in the documentation that using -results is "not
recommended due to performance and memory issues". My guess is that
Spotlight might be keeping something alive for it; you might want to
post this on the Spotlight-dev list, that's where the people who know
about Spotlight behind-the-scenes tend to hang out.
Phil
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