let fm = NSFileManager.defaultManager()
for _ in 0..<1_000_000 {
    let path = "/Users/Hemet/Library"
    let fsr = fm.fileSystemRepresentationWithPath(path)
}

public func fileSystemRepresentationWithPath(path: String) -> UnsafePointer<Int8> {
        precondition(path != "", "Empty path argument")
        let len = CFStringGetMaximumSizeOfFileSystemRepresentation(path._cfObject)
        if len == kCFNotFound {
            return nil
        }
        // memory allocated here
        let buf = UnsafeMutablePointer<Int8>.alloc(len)
        for i in 0..<len {
            buf.advancedBy(i).initialize(0)
        }
        if !path._nsObject.getFileSystemRepresentation(buf, maxLength: len) {
            buf.destroy(len)
            buf.dealloc(len)
            return nil
        }
        // never freed, leak here
        return UnsafePointer(buf)
    }