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Hey,

I'm running on a file which is filtered for two reconstructed tracks (latest snapshot):

http://www.slac.stanford.edu/~phansson/files/temp/hps_001353.evio.1_twotrkfilt.slcio

When I run the steering/LCIOEventFilter.lcsim over this file on my mac laptop I see a very slow event processing rate ~100Hz. All this is doing is checking for the existence of the track collection, and if its there cut on the nr of tracks and write the event.  I checked and it doesn't matter if I write the event or not, still very slow. 

What speed do you see for this kind of operation? Any ideas why it's so slow?

/pelle

 
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