updated copy_if performance test
updated copy_if performance test

google-code-export/thrust,levendlee/thrust,bfurtaw/thrust,bfurtaw/thrust,allendaicool/thrust,Vishwa07/thrust,hemmingway/thrust,julianromera/thrust,hemmingway/thrust,hemmingway/thrust,bfurtaw/thrust,h1arshad/thrust,lishi0927/thrust,rdmenezes/thrust,UIKit0/thrust,allendaicool/thrust,google-code-export/thrust,malenie/thrust,julianromera/thrust,julianromera/thrust,bfurtaw/thrust,levendlee/thrust,h1arshad/thrust,google-code-export/thrust,rdmenezes/thrust,hemmingway/thrust,lishi0927/thrust,malenie/thrust,UIKit0/thrust,h1arshad/thrust,malenie/thrust,UIKit0/thrust,rdmenezes/thrust,levendlee/thrust,UIKit0/thrust,h1arshad/thrust,allendaicool/thrust,google-code-export/thrust,malenie/thrust,Vishwa07/thrust,rdmenezes/thrust,lishi0927/thrust,levendlee/thrust,julianromera/thrust,Vishwa07/thrust,lishi0927/thrust,Vishwa07/thrust,allendaicool/thrust