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Ruby 2.5.0 Released

ruby-lang.org

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Re: Ruby 2.5.0 Released

#21

Post by WJW »

diminish wrote: post #16
greysteil wrote: post #15

Nice to see the 3x3 work continuing to go well with that 5-10% speed up. For anyone who hasn’t seen it, Ruby declared a target for Ruby 3.0 to be 3x faster than 2.0. http://engineering.appfolio.com/appfolio-engineering/2015/11...

What particular speed improvements do we expect from 2.5.0 release? String interpolation speedup?

In addition to the ERB generation and removing all the tracepoints mentioned in the sister comment, there is also a change in the hash function used for Hashmaps. The new one needs roughly half the hashing iterations so it should slightly speed up any application that uses hashtables. (aka pretty much every ruby app)

Re: Ruby 2.5.0 Released

#23

Post by ajmurmann »

jph wrote: post #9

Test Driven Development (TDD) gets a huge improvement with the new coverage capabilities for methods and branches. Thanks Ruby team!

I'm surprised by this comment. Having done TDD for many years now I've only ever felt the need for coverage tools on code that wasn't initially TDDed. If you do proper TDD your coverage is always pretty damn close to 100% and you are already well aware of where it isn't because you struggled TDDing in the first place.

Re: Ruby 2.5.0 Released

#24

Post by WJW »

taf2 wrote: post #20
WJW wrote: post #7

I started using Ruby only in April this year due to starting at a new job. Having used and/or dabbled in C, Java, Python and Haskell before (amongst others), I find it super interesting to see how Ruby manages to take some interesting parts from each and manages to integrate it into a very pleasant programming experience. Also the rspec testing library is nothing short of magic, none of the compiled languages have an…

Cool which libcurl bindings are you using?

Patron, from here: https://github.com/toland/patron. We use it in combination with our (open source) FastSend gem to keep the streamed data away from the Ruby garbage collector, since it gets a bit emotional if it has to clear out hundreds of MBs every second. If you're interested why we chose this architecture instead of just redirecting to S3, our lead engineer gave a talk about the reasoning behind this structure. You can find the slides at https://speakerdeck.com/julik/streaming-large-files-with-rub....

Re: Ruby 2.5.0 Released

#25

Post by abritinthebay »

nileshtrivedi wrote: post #2

Ruby may not be the cool thing in town it once was, but it remains my preferred language for prototyping ideas - purely because of its elegance and expressivity. It truly delivers on its fundamental goal of "developer happiness". A lot of ideas from Ruby have gone to other languages (CoffeeScript, Elixir) and many web frameworks are modelled after Rails. Congrats and thanks to all the core devs! :-)

See, expressive I totally get. Absolutely. But elegance? Don’t understand that one.

Ruby is a cluster of inelegant and over concise cludges in the name of expressivity. The fact that it was once most famous for one of the most inelegant hacks - monkey patching - as a core feature speaks to that.

So I totally understand that it’s quick, it’s expressive, and it’s easy to prototype in. Agreed. It’s lost a lot of it’s shine there now but it’s all still true.

But elegant? It’s concise, not elegant.

Re: Ruby 2.5.0 Released

#26

Post by chc »

abritinthebay wrote: post #25
nileshtrivedi wrote: post #2

Ruby may not be the cool thing in town it once was, but it remains my preferred language for prototyping ideas - purely because of its elegance and expressivity. It truly delivers on its fundamental goal of "developer happiness". A lot of ideas from Ruby have gone to other languages (CoffeeScript, Elixir) and many web frameworks are modelled after Rails. Congrats and thanks to all the core devs! :-)

See, expressive I totally get. Absolutely. But elegance? Don’t understand that one. Ruby is a cluster of inelegant and over concise cludges in the name of expressivity. The fact that it was once most famous for one of the most inelegant hacks - monkey patching - as a core feature speaks to that. So I totally understand that it’s quick, it’s expressive, and it’s easy to prototype in. Agreed. It’s lost a lot of it’s sh…

I think there's a lot about its expressiveness that's elegant. You can't pick one inelegant practice and define the entire language by that — nothing would pass that test.

But for example, Ruby's method-based control flow allows for sophisticated ideas to be expressed in a way that's clear but doesn't demand undue attention. A while back I needed to implement a common structure in Python for basically "repeat this operation with increasing sleep times until it succeeds" in the context of a particular library. Every option I could come up with was fairly inelegant, either requiring more attention than it deserved or being excessively oblique or just reading like a neural networks trained on Python, and none of the senior Pythonistas at my work could come up with anything much better. But I could clearly picture how to do it in Ruby, and it wouldn't have had any of those problems there. The extra expressiveness allows it to express the idea elegantly.

Re: Ruby 2.5.0 Released

#27

Post by fred123 »

WJW wrote: post #7

I started using Ruby only in April this year due to starting at a new job. Having used and/or dabbled in C, Java, Python and Haskell before (amongst others), I find it super interesting to see how Ruby manages to take some interesting parts from each and manages to integrate it into a very pleasant programming experience. Also the rspec testing library is nothing short of magic, none of the compiled languages have an…

I'd be very interested to know what you mean by "nothing short of magic". I've had a quick look at the rspec documentation and as a Python dev this looks very similar to what's in the Python standard library. Would that be considered magic as well or does rspec have some cool features that I have missed?

Re: Ruby 2.5.0 Released

#28

Post by nerdponx »

abritinthebay wrote: post #25
nileshtrivedi wrote: post #2

Ruby may not be the cool thing in town it once was, but it remains my preferred language for prototyping ideas - purely because of its elegance and expressivity. It truly delivers on its fundamental goal of "developer happiness". A lot of ideas from Ruby have gone to other languages (CoffeeScript, Elixir) and many web frameworks are modelled after Rails. Congrats and thanks to all the core devs! :-)

See, expressive I totally get. Absolutely. But elegance? Don’t understand that one. Ruby is a cluster of inelegant and over concise cludges in the name of expressivity. The fact that it was once most famous for one of the most inelegant hacks - monkey patching - as a core feature speaks to that. So I totally understand that it’s quick, it’s expressive, and it’s easy to prototype in. Agreed. It’s lost a lot of it’s sh…

What's an example of one of those kludges? "Ruby concise" at least looks elegant, whereas, say, "Perl concise" is hideous.

Re: Ruby 2.5.0 Released

#29

Post by nerdponx »

chc wrote: post #26
abritinthebay wrote: post #25

Earlier quoted context omitted.

See, expressive I totally get. Absolutely. But elegance? Don’t understand that one. Ruby is a cluster of inelegant and over concise cludges in the name of expressivity. The fact that it was once most famous for one of the most inelegant hacks - monkey patching - as a core feature speaks to that. So I totally understand that it’s quick, it’s expressive, and it’s easy to prototype in. Agreed. It’s lost a lot of it’s sh…

I think there's a lot about its expressiveness that's elegant. You can't pick one inelegant practice and define the entire language by that — nothing would pass that test. But for example, Ruby's method-based control flow allows for sophisticated ideas to be expressed in a way that's clear but doesn't demand undue attention. A while back I needed to implement a common structure in Python for basically "repeat this op…

What would the elegant Ruby version look like, and what was inelegant about the Python version?

In Python I imagine you could just do something like this:

    from time import sleep

    sleep_increment = 1
    sleep_time = 0
    success = False
    while not success:
        sleep(sleep_time)
        success = try_thing()
        sleep_time += sleep_increment

Re: Ruby 2.5.0 Released

#30

Post by ouid »

abritinthebay wrote: post #25
nileshtrivedi wrote: post #2

Ruby may not be the cool thing in town it once was, but it remains my preferred language for prototyping ideas - purely because of its elegance and expressivity. It truly delivers on its fundamental goal of "developer happiness". A lot of ideas from Ruby have gone to other languages (CoffeeScript, Elixir) and many web frameworks are modelled after Rails. Congrats and thanks to all the core devs! :-)

See, expressive I totally get. Absolutely. But elegance? Don’t understand that one. Ruby is a cluster of inelegant and over concise cludges in the name of expressivity. The fact that it was once most famous for one of the most inelegant hacks - monkey patching - as a core feature speaks to that. So I totally understand that it’s quick, it’s expressive, and it’s easy to prototype in. Agreed. It’s lost a lot of it’s sh…

Arguing that something isn't elegant is a lost cause.
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