Could it be that the files from disk are "hot" in cache on the second run?
Try emptying the cache before the second run. Linux: sync; echo 3 > /proc/sys/vm/drop_caches -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/d176edd4-90ec-4297-8cc0-0179a0d47ab2%40googlegroups.com.
