Exactly this - https://github.com/visionmedia/n.
On Monday, June 25, 2012 9:36:54 PM UTC+4, Mark Hahn wrote: > > What is the best way to install 0.8 on ubuntu linux? > > On Monday, June 25, 2012 8:01:13 AM UTC-7, Isaac Schlueter wrote: >> >> I am thrilled to announce the arrival of a new stable version of Node.js. >> >> Compared with the v0.6 releases of Node, this release brings >> significant improvements in many key performance metrics, as well as >> cleanup in several core APIs, and the addition of new debugging >> features. >> >> ## tl;dr >> >> With version 0.8.0: >> >> 1. Node got a lot faster. >> 2. Node got more stable. >> 3. You can do stuff with file descriptors again. >> 4. The [cluster module](http://nodejs.org/api/cluster.html) is much >> more awesome. >> 5. The [domain module](http://nodejs.org/api/domain.html) was added. >> 6. The repl is better. >> 7. The build system changed from waf to gyp. >> 8. [Some other stuff changed, >> too.]( >> https://github.com/joyent/node/wiki/API-changes-between-v0.6-and-v0.8) >> 9. Scroll to the bottom for the links to install it. >> >> ## Performance >> >> This version brings a few key enhancements in V8 and libuv that result >> in significantly improved throughput. >> >> All of these benchmarks were run on my OS X laptop, but the results >> are typical of what we're seeing on SmartOS, Linux, and Windows. >> >> ``` >> # io.js >> >> # 0.6.19, writes >> Wrote 1024 byte buffers: 19.428793471925395 mB/s >> Wrote 4096 byte buffers: 59.737156511350065 mB/s >> Wrote 16384 byte buffers: 83.97010664203543 mB/s >> Wrote 65536 byte buffers: 97.4184120798831 mB/s >> >> # 0.8.0, writes >> Wrote 1024 byte buffers: 61.236987140232706 mB/s >> Wrote 4096 byte buffers: 109.05125408942203 mB/s >> Wrote 16384 byte buffers: 182.18254691200585 mB/s >> Wrote 65536 byte buffers: 181.91740949608877 mB/s >> >> # v0.6.19, reads >> Read 1024 byte buffers: 29.96883241428914 mB/s >> Read 4096 byte buffers: 62.34413965087282 mB/s >> Read 16384 byte buffers: 165.7550140891762 mB/s >> Read 65536 byte buffers: 266.73779674579885 mB/s >> >> # v0.8.0, reads >> Read 1024 byte buffers: 57.63688760806916 mB/s >> Read 4096 byte buffers: 136.7801942278758 mB/s >> Read 16384 byte buffers: 244.8579823702253 mB/s >> Read 65536 byte buffers: 302.2974607013301 mB/s >> ``` >> >> The difference is not small. If you are writing network programs with >> node, and pushing a lot of traffic, you will notice this improvement. >> >> The speed of reading files got quite a bit faster as well: >> >> ``` >> # v0.6.19 >> read the file 110948 times (higher is better) >> 90141.32 ns per read (lower is better) >> 11093.69 reads per sec (higher is better) >> >> # v0.8.0 >> read the file 158193 times (higher is better) >> 63217.16 ns per read (lower is better) >> 15818.48 reads per sec (higher is better) >> ``` >> >> And of course, the ubiquitous 'hello, world' http server benchmark got >> significantly faster, especially for large message sizes: >> >> ``` >> $ TYPE=bytes LENGTH=123 bash benchmark/http.sh 2>&1 | grep Req >> # 0.6.19 >> Requests per second: 3317.24 [#/sec] (mean) >> # 0.8.0 >> Requests per second: 3795.34 [#/sec] (mean) >> >> >> $ TYPE=bytes LENGTH=1024 bash benchmark/http.sh 2>&1 | grep Req >> # v0.6.19 >> Requests per second: 3258.42 [#/sec] (mean) >> # 0.8.0 >> Requests per second: 3585.62 [#/sec] (mean) >> >> >> $ TYPE=bytes LENGTH=123456 bash benchmark/http.sh 2>&1 | grep Req >> # v0.6.19 >> Requests per second: 218.51 [#/sec] (mean) >> # 0.8.0 >> Requests per second: 749.17 [#/sec] (mean) >> ``` >> >> The difference with Unicode responses is even more pronounced: >> >> ``` >> $ TYPE=unicode LENGTH=1024 bash benchmark/http.sh 2>&1 | grep Req >> # v0.6.19 >> Requests per second: 3228.23 [#/sec] (mean) >> # v0.8.0 >> Requests per second: 3317.60 [#/sec] (mean) >> >> $ TYPE=unicode LENGTH=12345 bash benchmark/http.sh 2>&1 | grep Req >> # v0.6.19 >> Requests per second: 1703.96 [#/sec] (mean) >> # v0.8.0 >> Requests per second: 2431.61 [#/sec] (mean) >> >> $ TYPE=unicode LENGTH=55555 bash benchmark/http.sh 2>&1 | grep Req >> #v0.6.19 >> Requests per second: 161.65 [#/sec] (mean) >> #v0.8.0 >> Requests per second: 980.38 [#/sec] (mean) >> >> $ TYPE=unicode LENGTH=99999 bash benchmark/http.sh 2>&1 | grep Req >> # v0.6.19 >> ^C # lost patience after a few hours >> # v0.8.0 >> Requests per second: 252.69 [#/sec] (mean) >> ``` >> >> The more bytes you're pushing, and the more work you're doing, the >> more win you'll see with node 0.8 over 0.6. >> >> The vast majority of the performance boost is due to improvements in >> V8. They've been very responsive to the needs of the Node.js project. >> A lot of Node's success is due to being built on such a stellar VM. >> >> ## Build System >> >> Since its inception Node has used the WAF build system which is a >> Python based system similar to SCons. The Chrome project recently >> changed to the GYP meta-build system from SCons. GYP generates >> Makefiles, Visual Studio project files, or XCode files depending on >> the target. V8, being part of the Chrome project, now defines its >> build in GYP. By using GYP, Node is able to: >> >> - integrate with the optimal build system on all platforms, >> - easily able to integrate V8's build process into its own, and >> - define its compilation declaratively for better manageability >> >> GYP was used already in Node v0.6 to build on Windows, but now it >> defines the build on all platforms. Node is still in the process of >> migrating external addon modules to GYP, and node-gyp is included with >> npm. In future releases, node-waf will be officially deprecated. If >> you are currently using a wscript in your addon, please migrate to gyp >> as soon as possible. >> >> >> ## Stabler >> >> The transition from libev and libeio to libuv in 0.6 was somewhat >> destabilizing for many node internals. The gambit paid off: libuv is >> the obvious choice in cross-platform asynchronous IO libraries, and >> Node.js is impressively performant on both Windows and Unix. But it >> made the transition from 0.4 to 0.6 was very rocky for a lot of users. >> Libuv wasn't as mature as node, and it showed in those early releases. >> >> At this point, with very few exceptions, if your v0.6 program doesn't >> run on v0.8, it should be easy and obvious to make whatever changes >> are necessary. Libuv has come a very long way, and Node 0.8 is a >> simpler and more efficient machine as a result. >> >> See the [migration >> wiki]( >> https://github.com/joyent/node/wiki/API-changes-between-v0.6-and-v0.8) >> for details on the specific APIs that changed. >> >> ## The Return of File Descriptors >> >> In Node 0.4, there was a `listenFD` method that servers could use to >> listen on a specific file descriptor that was already bound to a >> socket or port. In 0.6, that functionality went away, largely because >> it was very Unix-specific, and couldn't be easily made to work with >> the new cross-platform libuv base. >> >> Since the most common use case for listenFD was as a method for having >> servers in multiple node processes share the same underlying handle, >> the `cluster` module was added in its place. However, this still left >> a lot of use cases unaddressed, and was a reason why some people could >> not use node 0.6 for their programs. >> >> In 0.8, we've replaced this functionality, as `server.listen({ fd: number >> })`. >> >> The other feature in node 0.4 that got dropped in 0.6 was the ability >> to pass arbitrary file descriptors as a child process's stdio, using >> the `customFds` array. In Node 0.6, `customFds` could be used to >> inherit the parent's stdio handles, but not to pass arbitrary handles >> or file descriptors to the child's stdio. Also, there was never a way >> to pass more than the standard `in, out, err` trio, so programs that >> expected FD 4 to be opened in some specific way were out of luck. >> >> In 0.8, we've added the `stdio` array on the `child_process.spawn` >> options. Pass as many file descriptors, handles, etc. as you like, and >> the child process will see them as already-opened FDs. >> >> ## More Powerful Cluster >> >> The cluster module in 0.8 is so much improved over 0.6, it's basically >> a complete rewrite. The API is mostly backwards compatible, but not >> entirely. (See the [migration >> wiki]( >> https://github.com/joyent/node/wiki/API-changes-between-v0.6-and-v0.8) >> for details.) >> >> Barring these very minor API changes, if you were using cluster in >> 0.6, then your program will still work, but it'll be faster and more >> well-behaved now. And if you aren't taking advantage of the new >> features in 0.8's cluster, you're really missing out. >> >> There's too much even to do it justice here. Go read [the API >> docs](http://nodejs.org/api/cluster.html). >> >> ## Domains >> >> The original idea for Domains was a way to join multiple different IO >> actions, so that you can have some context when an error occurs. >> >> Since Ryan discussed the feature with node users at NodeConf Summer >> Camp last year, the domains feature has gone through many revisions. >> The problem is fairly well understood, but most attempts to solve it >> resulted in serious performance regressions, or uncovered difficult >> edge cases. >> >> What we ended up with in 0.8 is a very stripped-down version of this >> idea. It's entirely opt-in, with minimal performance impact when it's >> used (and none when it isn't). There are a lot of examples in [the API >> documentation](http://nodejs.org/api/domain.html), so check them out, >> and start handling your crashes smarter. >> >> The domain module is still experimental. We are looking forward to >> your feedback, so please use it and let us know what you think. >> >> ## Repl, Readline, TTY >> >> The Repl, Readline, and TTY modules have all had a major facelift. The >> interfaces between these three modules are cleaned up and refactored, >> removing a lot of common pain points and making it easier to use for >> debugging your programs. >> >> It may seem minor at times, but a good repl dramatically increases the >> quality of the overall experience. My personal favorites are: >> >> 1. Typing `fs` or `net` or `path` will automatically load the module. >> 2. Typing `npm install ...` will give you a helpful message. >> 3. It doesn't do that stupid thing where long lines wrap and then the >> backspace makes it get all confused and crazy. Instead of that, it >> does the right thing. >> >> ## Looking Forward >> >> Like other even-numbered version families before it, v0.8 will >> maintain API and ABI stability throughout its lifetime. >> >> The v0.6 release family will continue to see releases for critical >> bugfixes and security issues through the end of 2012. However, it will >> not be the main focus of the core team's attention. >> >> The v0.9 releases will start in the next couple weeks. The main focus >> of v0.9 will be: >> >> * The HTTP implementation - It has seen a lot of real-world use now, >> but the http module is in dire need of a cleanup and refactor. Special >> attention will be paid to making the interfaces more consistent, >> improve performance, and increase correctness in more edge cases. >> * The Streams API - The concept of the Stream API is very core to >> node. However, it is also (like HTTP) a feature that grew up >> organically, and is now in need of a cleanup. It is currently too hard >> to get right, especially regarding error handling. >> * Libuv Streams - The handle interfaces in libuv are going to be >> refactored for added consistency throughout the codebase and across >> platforms. >> >> Looking past that, there are a few areas where Node.js still has room >> for improvement in terms of internal consistency, idiomatic JavaScript >> usage, and performance. None of these are fully-fleshed out ideas yet, >> but these are some of the items on our radar: >> >> * We ought to move to TypedArrays in favor of Buffers. Buffers will >> continue to work, but since TypedArray is a JavaScript native, it >> makes sense to move towards that as the preferred API. >> >> * SSL performance leaves much to be desired at the moment. Node's >> interface with OpenSSL is somewhat naive and leaves a lot of potential >> optimization on the table. >> >> * The VM module needs massive improvement. It lacks features required >> to emulate a web browser JavaScript context, which means that it is >> inadequate. >> >> * The Crypto module still uses some very dated APIs. In 0.8, it can >> accept Buffers for many things (finally!) but it still does not >> present a Node-like streaming interface. >> >> At this point, the scope of Node's feature set is pretty much locked >> down. We may move things around internally for these cleanup tasks, >> but as you can see, there are no major new features planned. We've >> drawn our boundaries, and now it's time to continue focusing on >> improving stability and performance of the core, so that more >> innovation can happen in **your** programs. >> >> And now, for those of you who may be wondering what was added since >> v0.7.12, your regularly scheduled release announcement: >> >> ## 2012.06.25, Version 0.8.0 (stable) >> >> * V8: upgrade to v3.11.10.10 >> >> * npm: Upgrade to 1.1.32 >> >> * Deprecate iowatcher (Ben Noordhuis) >> >> * windows: update icon (Bert Belder) >> >> * http: Hush 'MUST NOT have a body' warnings to debug() (isaacs) >> >> * Move blog.nodejs.org content into repository (isaacs) >> >> * Fix #3503: stdin: resume() on pipe(dest) (isaacs) >> >> * crypto: fix error reporting in SetKey() (Fedor Indutny) >> >> * Add --no-deprecation and --trace-deprecation command-line flags >> (isaacs) >> >> * fs: fix fs.watchFile() (Ben Noordhuis) >> >> * fs: Fix fs.readfile() on pipes (isaacs) >> >> * Rename GYP variable node_use_system_openssl to be consistent (Ryan >> Dahl) >> >> >> Source Code: http://nodejs.org/dist/v0.8.0/node-v0.8.0.tar.gz >> >> Macintosh Installer (Universal): >> http://nodejs.org/dist/v0.8.0/node-v0.8.0.pkg >> >> Windows Installer: http://nodejs.org/dist/v0.8.0/node-v0.8.0-x86.msi >> >> Windows x64 Installer: >> http://nodejs.org/dist/v0.8.0/x64/node-v0.8.0-x64.msi >> >> Windows x64 Files: http://nodejs.org/dist/v0.8.0/x64/ >> >> Other release files: http://nodejs.org/dist/v0.8.0/ >> >> Website: http://nodejs.org/docs/v0.8.0/ >> >> Documentation: http://nodejs.org/docs/v0.8.0/api/ >> >> Shasums: >> 0003323c2af7c396273ba728faea9581baecb86f node-v0.8.0-x86.msi >> b550e7ef0cae989081f72968049fed3e47d558db node-v0.8.0.pkg >> af36d3724aec6fef7e2cf1a11b90e0a02ec31b67 node-v0.8.0.tar.gz >> 3e11dc38ab607a7112226b8e2ee53c1510ab9230 node.exe >> 4262e8bed432dd386abf866063feb07a42c71135 node.exp >> ca14db36491885f15ff3f1ad7f94676b23dd8202 node.lib >> 2b3f7a90a95625e8447ae4fb6dcce488bb65d293 node.pdb >> d8e79283f9b814d2255891a5f19aaf9edc237f70 npm-1.1.32.tgz >> 140d5c808a99dfd25a588c569455ca399913b289 npm-1.1.32.zip >> 54c314adec6610bbad1a116444f04bd0ab911792 x64/node-v0.8.0-x64.msi >> bf083bb5bf142abb431e28545002b3a4ddff8e78 x64/node.exe >> 549b30c76e742efaf9b762aa8fc0b1fd27c7e496 x64/node.exp >> 7b5b5d8d7ea7f539c758b1614126bc935a95a90d x64/node.lib >> 49624d27c874dfa9acba25506b131ac659b42cf7 x64/node.pdb >> >
