i am writing a memcpy wrapper. and i am doing a LD_PRELOAD of the library on which memcpy wrapper is written. Now if i run a application which calls strcpy it is not doing it fast. if i am runing the same application without LD_PRELOAD, it is running faster. but if i am running it with a preloaded library it is slow. even if it not defined in the library. Will LD_PRELOAD will decrease the speed of execution??