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i guess the limit on keys/values is "don't have a hash(bucket, key) collision"
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Dec 8, 2012 21:43
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prefect posted:I don't have any formal Computer Scientist education; are bitfields generally a bad idea these days? (There are some architect-types at my current place who are madly in love with them.) in dynamic languages, it is often easier to pass strings around, rather than bitfields and bunch of boilerplate to decode them. even java has an enum type. many people don't need to conserve memory, and the ones who do will need broader strategies than 'use a bitfield'. the nice thing is that often you can use a more general purpose data structure, and then replace the access later with tuned code. that is, when you find out it is a bottleneck. it's an optimisation. need to make a judgement call when it is worth using.
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Dec 8, 2012 21:45
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tef posted:in dynamic languages, it is often easier to pass strings around, rather than bitfields and bunch of boilerplate to decode them. "Premature optimization is the root of all evil" -- is that old advice that's still worth adhering to? 
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Dec 8, 2012 21:46
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java enum instances have an index which is used in enumsets and enummaps to implement them in terms of bitfields and arrays. there's overhead for the object wrappers but it's less than using a hashset with strings or the like
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Dec 8, 2012 21:53
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prefect posted:"Premature optimization is the root of all evil" -- is that old advice that's still worth adhering to? yup for server-side, when your server bills become more untenable than staff bills for client-side, when you notice it's slow your users will have probably already thought it slow
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Dec 8, 2012 21:53
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Throwing more servers at the problem only increases throughput, it doesn't decrease latency
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Dec 8, 2012 21:56
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prefect posted:"Premature optimization is the root of all evil" -- is that old advice that's still worth adhering to? i didn't say all advice? just that a lot of advice given is dated and made with the tradeoffs of the time, rather than the present. with that in mind, drop the 'premature' 
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Dec 8, 2012 21:59
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Mr Dog posted:Throwing more servers at the problem only increases throughput, it doesn't decrease latency It can if the servers are taking a long time to services requests because their are too many backed up. So for a while it can help reduce latency as well as increase throughput.
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Dec 8, 2012 22:03
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i learned a word today farpotshket it means something that is broken because someone tried to fix it
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Dec 8, 2012 22:04
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tef posted:i learned a word today cool, is it a noun or an adjective?
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Dec 8, 2012 22:06
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i believe it is an adj.
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Dec 8, 2012 22:19
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 DID SOMEONE MENTION OPTIMIZATION?
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Dec 8, 2012 22:19
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savage optimization
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Dec 8, 2012 22:22
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This kills the optimization
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Dec 8, 2012 22:24
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tef posted:software productivity (and reuse) is mostly a social issue, not a technical one. definitely, social issues make up the majority of what MM-M is about, but the technical issues get all the press. I know I'm guilty of that as well I just realized my copy of mythical man-month is the 20th anniversary edition and there's only 2 more years to go until its 40th anniversary  tef posted:the next big leap will not be finding new ways of programming, but new ways to avoid programming. or to put that in less technical terms, finding ways to solve simple problems in place of complex problems tef posted:this is a pretty modern idea of programming. programming for years was more about performing a calculation, repeating a set of instructions over and over again. back then eliminating redundant code was a necessity borne out of limited memory and storage space then it turned out to be a good idea anyway maybe a bit of duplication isn't so bad and it's time for things to swing the other way for the first time? see DLL hell and the current recommendation of including a version number in DLL names and keeping your DLLs in the same folder with the program binary for some hints of this I think you might have posted a video lecture touching on this as well
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Dec 8, 2012 23:57
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tef posted:javascript was more the result of being hired to write a scheme variant and then being told to 'make it look like java'
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Dec 9, 2012 00:34
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does weed come in an injectable form? can someone mail it to me? getting fat from all this beer oh yes programming uhh tef that compiler thread is gonna get archived sooner or later i guess you can just make a new one idk
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Dec 9, 2012 00:56
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Reading through Skienna's Algorithm Design manual. Currently one of the nicest algorithm books I managed to go through (only 1/6 of the way through) without feeling like dying of boredom.
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Dec 9, 2012 00:59
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Win8 Hetro Experie posted:maybe a bit of duplication isn't so bad duplication is ok in moderation, mostly because sharing things is hard. the idea you every piece of code you write is unique is a bit of a chore. quote:and it's time for things to swing the other way for the first time? see DLL hell and the current recommendation of including a version number in DLL names and keeping your DLLs in the same folder with the program binary for some hints of this the plan9 people were quite grumpy about dynamic linking iirc. but yeah, I tend to copy and paste instead of moving code into a library the moment I reuse it. i push things in the library when I know what i'm going to share. it's a lot nicer to read, and it saves me from the rathole of a 'util' file where I dump every function that is useful elsewhere.
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Dec 9, 2012 05:27
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tef posted:this is stupid, you are stupid. cool now I have to waste time testing and writing s file parser
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Dec 9, 2012 05:28
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*throws your post away after 45 minutes*
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Dec 9, 2012 06:50
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I think we have enough languages, what we need now is a program to write other programs for us because we're super bad at it.
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Dec 9, 2012 10:00
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rotor posted:I think we have enough languages, what we need now is a program to write other programs for us because we're super bad at it. but which programming language would that program use?
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Dec 9, 2012 13:50
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https://gist.github.com/4242213 pots, kettles, black python user is mad because ruby libraries depend on other libraries ruby users mad because python libraries are self-contained shitholes smug clojure user quotes rich hickey: "gem install hairball"
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Dec 9, 2012 17:38
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rotor posted:I think we have enough languages, what we need now is a program to write other programs for us because we're super bad at it. how would we tell it what we want?
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Dec 9, 2012 18:16
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Notorious b.s.d. posted:https://gist.github.com/4242213 oh no, anything but a dependency!
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Dec 9, 2012 18:19
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1337JiveTurkey posted:how would we tell it what we want? "computer, do what I want. you know, make one of those thingies. with the stuff on it."
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Dec 9, 2012 18:50
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rotor posted:"computer, do what I want." WIN loving WIN YOSPOS lol
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Dec 9, 2012 18:51
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STILL GAY AND DUMB posted:WIN loving WIN YOSPOS lol im sorry but this is a thread for grownups
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Dec 9, 2012 18:52
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rotor posted:"computer, do what I want. you know, make one of those thingies. with the stuff on it." clearly the solution is computers which constantly observe us and create programs to make our lives easier and more efficient automatically
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Dec 9, 2012 18:52
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yeah, but you know, baby steps.
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Dec 9, 2012 18:53
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Jonnty posted:clearly the solution is computers which constantly observe us and create programs to make our lives easier and more efficient automatically 
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Dec 9, 2012 18:54
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rotor posted:im sorry but this is a thread for grownups grownups in bodey, perhaps, but children (manbabies...?) in emotional development......???I eagerly await my 5s and you don't need to report back from GBS
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Dec 9, 2012 18:55
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rotor posted:yeah, but you know, baby steps. it always seems like the solution to a lot of problems in computer science and particularly HCI is to just skip past them
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Dec 9, 2012 18:57
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STILL GAY AND DUMB posted:grownups in bodey, perhaps, but children (manbabies...?) in emotional development......???I eagerly await my 5s and you don't need to report back from GBS typical php user spotted
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Dec 9, 2012 19:09
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Jonnty posted:it always seems like the solution to a lot of problems in computer science and particularly HCI is to just skip past them by this do you mean 'dump them on the user'?
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Dec 9, 2012 19:10
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i've literally never used automator, what can it do
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Dec 9, 2012 19:11
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gucci void main posted:i've literally never used automator, what can it do http://support.apple.com/kb/HT2488?viewlocale=en_US&locale=en_US
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Dec 9, 2012 19:13
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automator is the true future of programming. the application as api metaphor will save us all. need to calculate something? send it to the wolfram cloud. put the output in this application. e-mail it to my secretary's eye-glasses. the componentization of things a user actually gives a poo poo about wanting to do.
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Dec 9, 2012 19:15
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tef posted:by this do you mean 'dump them on the user'? no, i mean realising the problem you're getting bogged down in is irrelevant if you actually think about what you're ultimately trying to achieve
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Dec 9, 2012 19:16
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