Speed up code to run through plist

Question

I'm running through a plist with 4000 words. My code works but it takes a few seconds to run the code. Is there anyway to speed up my code to run through the plist?

NSString *path = [[NSBundle mainBundle] pathForResource:@"myList" ofType:@"plist"];
NSMutableArray *array = [[NSMutableArray alloc] initWithContentsOfFile:path];
for (NSString *str in array) {
NSLog(@"%@", str);
}

Thanks in advance.

Answer 1

NSLog() is slow. Remove that and just do the work, it'll be faster.

Here's a test comparison of printing each line versus making a new string by appending to the existing string.

   // create test array
   NSMutableArray * strings = [[NSMutableArray alloc] init];
    for (int i = 0; i < 4000; i++)
    {
        [strings addObject:@"new string"];
    }

    // create variables for storing test time. 
    CFTimeInterval startTime, endTime;

    // test the NSLog loop
    startTime = CACurrentMediaTime();
    for (NSString * string in strings) {
        NSLog(@"%@", string);
    }
    endTime = CACurrentMediaTime();
    NSLog(@"Total Runtime for NSLog: %g s", endTime - startTime);

    // test the comparison loop
    startTime = CACurrentMediaTime();
    for (NSString * string in strings) {
        NSString* newString = [string stringByAppendingString:@"   "];
    }
    endTime = CACurrentMediaTime();
    NSLog(@"Total Runtime for appending: %g s", endTime - startTime);

On my iPhone 6 :

Total Runtime for NSLog: 0.55105 s

Total Runtime for appending: 0.00366363 s

The timing test code was modified from this excellent NSHipster article: http://nshipster.com/benchmarking/