Why I Don't Want to Learn Go

Re:Why I Don't Want to Learn Go by cageface on Monday March 19, 2012 @08:10AM (#3723517)

Objective C message passing is much, much faster than function dispatch in a typical scripting language but still too slow for inner loops. C++ virtual functions and, of course, inlined C/C++ functions are much faster.

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Re:Why I Don't Want to Learn Go by zoul on Monday March 19, 2012 @08:42AM (#3723619)

Obligatory link benchmarking various Objective-C operations:

http://www.mikeash.com/pyblog/performance-comparisons-of-com...

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Re:Why I Don't Want to Learn Go by adgar on Monday March 19, 2012 @01:19PM (#3724958)

I'm a bit concerned about at least one measurement:

Read 16-byte file 100000 iterations 2.1s for 100k reads 21219.3ns per read

This appears to be testing... the filesystem cache? It's certainly not seeking on a rotational disk, "SSD" isn't on the page, so... not sure where he's getting 21 microsecond reads from.

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Re:Why I Don't Want to Learn Go by acdha on Monday March 19, 2012 @05:46PM (#3726428)

It's measuring the overhead of a set of open()/read()/close() syscalls - exactly the situation where you would want to use the cache to avoid physical disk latencies swamping the language variation.

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Re:Why I Don't Want to Learn Go by adgar on Monday March 19, 2012 @10:22PM (#3727482)

Then it should say so, not suggest any rereading is being done and that it's just kernel plus memcpy.

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