I will keep the man pages and the channels on mind thank you! I took the performance these from luvit.io where it says two to four times faster than node on hello world server. However I think performance is a very small issue on both platforms. I am interesting how both will develop. There is ECMA5 coming around with lots of features which hopefully will improve javascript. I will also stay at javascript because there is currently no real reason to switch for me but it is good to know that there are alternatives around if there will be some bad changes in future.
Am 11.02.2013 um 18:40 schrieb Tim Caswell <[email protected]>: > I learned my C from various C man pages on google searches and asking around > on irc channels. > > Regarding performance between luvit and node.js, it's not objectivly one is > faster than the other. It is true that luajit and v8 are both very fast JIT > VMs with their own unique strengths. > > The biggest difference I've seen is calling C functions from luajit lua code > seems to have a lot less overhead than calling C++ functions from V8 > javascript code. Also luajit uses a lot less ram than v8 for small programs. > I haven't tested programs with large data structures so I can't comment on > how the data structures in the languages scale memory wise. > > > On Mon, Feb 11, 2013 at 11:28 AM, Bodo Kaiser <[email protected]> wrote: > I would also be happy with some C Tutorial :) > > PS: To luvit: Interesting that it is possible to use the Node basement with > different languages and also that this is faster than JavaScript (because of > the native c bindings?). I will follow the project and look how it will > develope. > > Regards, > Bodo > > Am 11.02.2013 um 18:13 schrieb Tim Caswell <[email protected]>: > >> I'm a C++ newb myself, so I can't recommend any good resources. I learned >> most my libuv through porting node to lua (luvit.io), but that was all plain >> C code (which I consider much easier than C++). >> >> >> On Mon, Feb 11, 2013 at 10:05 AM, Bodo Kaiser <[email protected]> wrote: >> Hello, >> >> thank you for your answer! >> >> This sounds really amazing. I hope I find the resources to understand this >> some days. >> >> Could you recommend a good tutorial for learning c(++) so I can understand >> and play around with libuv (and later on understand the bindings you linked >> to)? >> >> Regards, >> Bodo >> >> Am 11.02.2013 um 16:34 schrieb Tim Caswell <[email protected]>: >> >>> The language itself has no I/O at all. Even setTimeout and setInterval are >>> implemented by the libuv bindings using uv_timer_t instances. In the >>> browser the language VM is bound to the browser natives and APIs. In node, >>> the language is bound to libuv and other natives that node exposes. >>> >>> As far as callbacks, *every* true event source must come from C somewhere. >>> JavaScript cannot create new event sources on it's own. You can create a >>> function that wraps an async source (like the uv_timer_t interface) and >>> exposes a different API in javascript (like setTimeout). >>> >>> In node, there are bindings providing all the I/O (timers, tcp, pipes, tty, >>> fs, udp, dns, etc) and some C bindings for operations that CPU intensive or >>> hard to implement (http parsing, crypto, compression, etc..) >>> >>> For specifics, here is the C++ <-> JavaScript binding bridge for uv_timer_t >>> https://github.com/joyent/node/blob/master/src/timer_wrap.cc . And here is >>> the JS API wrapper to expose this as the well known setTimeout interface: >>> https://github.com/joyent/node/blob/master/lib/timers.js#L180-L214 >>> >>> Hope this helps, let me know if you have more questions. There is a lot >>> going on here. >>> >>> -Tim Caswell >>> >>> >>> >>> >>> >>> On Mon, Feb 11, 2013 at 8:47 AM, Bodo Kaiser <[email protected]> wrote: >>> Hello, >>> >>> last weekend I asked how nodejs event loop worked and I became a great link >>> about it: http://nikhilm.github.com/uvbook/basics.html#event-loops >>> >>> Unfortunately I still got a major understanding problem about nodejs: >>> When we use some node modules which itself look like plain javascript then >>> in the background libuv has to handle them somehow (e.g. tcp sockets) but >>> how could I imagine this? >>> Does the javascript get parsed by v8 which detects defined classes and >>> informs libuv to do the tasks the overlaying tcp sockets are configured for? >>> And what is about some "normal" javascript-language callbacks (e.g. >>> setTimeout). Are they also handled by v8 or libuv? >>> >>> >>> I think I do not understand what the v8 engine does exactly and how the >>> other libs are bound into. Could somebody clarify me? >>> >>> Regards, >>> Bodo >>> >>> >>> -- >>> -- >>> Job Board: http://jobs.nodejs.org/ >>> Posting guidelines: >>> https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines >>> You received this message because you are subscribed to the Google >>> Groups "nodejs" group. >>> To post to this group, send email to [email protected] >>> To unsubscribe from this group, send email to >>> [email protected] >>> For more options, visit this group at >>> http://groups.google.com/group/nodejs?hl=en?hl=en >>> >>> --- >>> You received this message because you are subscribed to the Google Groups >>> "nodejs" group. >>> To unsubscribe from this group and stop receiving emails from it, send an >>> email to [email protected]. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >>> >>> >>> >>> -- >>> -- >>> Job Board: http://jobs.nodejs.org/ >>> Posting guidelines: >>> https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines >>> You received this message because you are subscribed to the Google >>> Groups "nodejs" group. >>> To post to this group, send email to [email protected] >>> To unsubscribe from this group, send email to >>> [email protected] >>> For more options, visit this group at >>> http://groups.google.com/group/nodejs?hl=en?hl=en >>> >>> --- >>> You received this message because you are subscribed to the Google Groups >>> "nodejs" group. >>> To unsubscribe from this group and stop receiving emails from it, send an >>> email to [email protected]. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >>> >> >> >> -- >> -- >> Job Board: http://jobs.nodejs.org/ >> Posting guidelines: >> https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines >> You received this message because you are subscribed to the Google >> Groups "nodejs" group. >> To post to this group, send email to [email protected] >> To unsubscribe from this group, send email to >> [email protected] >> For more options, visit this group at >> http://groups.google.com/group/nodejs?hl=en?hl=en >> >> --- >> You received this message because you are subscribed to the Google Groups >> "nodejs" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/groups/opt_out. >> >> >> >> >> -- >> -- >> Job Board: http://jobs.nodejs.org/ >> Posting guidelines: >> https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines >> You received this message because you are subscribed to the Google >> Groups "nodejs" group. >> To post to this group, send email to [email protected] >> To unsubscribe from this group, send email to >> [email protected] >> For more options, visit this group at >> http://groups.google.com/group/nodejs?hl=en?hl=en >> >> --- >> You received this message because you are subscribed to the Google Groups >> "nodejs" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/groups/opt_out. >> >> > > > -- > -- > Job Board: http://jobs.nodejs.org/ > Posting guidelines: > https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines > You received this message because you are subscribed to the Google > Groups "nodejs" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/nodejs?hl=en?hl=en > > --- > You received this message because you are subscribed to the Google Groups > "nodejs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > > > > > -- > -- > Job Board: http://jobs.nodejs.org/ > Posting guidelines: > https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines > You received this message because you are subscribed to the Google > Groups "nodejs" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/nodejs?hl=en?hl=en > > --- > You received this message because you are subscribed to the Google Groups > "nodejs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > > -- -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. 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