<div dir="ltr"><font size="4">Dear all,</font><div><font size="4"> I'm doing a simulation of large PET which generates a huge amount of root data, I use </font><font color="#434343" face="Tahoma, Arial" style="font-size:large;background-color:rgb(242,242,242)"><span style="line-height:24px">C language </span></font><span style="font-size:large">to process root data event by event, which is time-consuming, I have a multi-core server, is there some </span><font size="4">techniques which can speed up the root data process ? I have tried PROOF but it seems the promotion is very small. Thanks a lot!</font></div>
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