十月 | 2014 | bangbang93.blog()

fibjs vs nodejs(4)

2014年10月27日无评论

突然想到Node.JS中有种很常用的优化方法，是利用异步的特性不管执行是否成功，先返回HTTP响应，于是按照这种方法我又改了一下代码

var http = require('http');
var mongodb = require('mongodb').MongoClient;
mongodb.connect('mongodb://localhost/fibvsnode?maxPoolSize=500', function (err, db) {
    if (err) {
        throw err;
    }
    var connection = db.collection('node');
    http.createServer(function (req, res) {
        connection.insert({
            time: new Date()
        },function (err){
            
        });
        //真正测试node性能，不管插入结果直接返回
        res.end(JSON.stringify({
            success: true
        }))
    }).listen(12345, '0.0.0.0');
});

var http = require('http');

var mongodb = require('mongodb').MongoClient;

mongodb.connect('mongodb://localhost/fibvsnode?maxPoolSize=500', function (err, db) {

if (err) {

throw err;

}

var connection = db.collection('node');

http.createServer(function (req, res) {

connection.insert({

time: new Date()

},function (err){

});

//真正测试node性能，不管插入结果直接返回

res.end(JSON.stringify({

success: true

}))

}).listen(12345, '0.0.0.0');

});

fibjs我想了想好像没法实现这种写法，不过我也才接触两天而已，于是只跑了node的测试

[c[……]

fibjs vs nodejs(3)
2014年10月27日 fibjs vs nodejs(3)无评论

响马回复了

@孢子响马:同时你这个测试中大家的 mongodb 都是一个连接，因此其实在请求 mongodb 时是串行的，所以你这个其实是在测试 mongodb 的 qps

于是改了一下代码，创建了一个500连接的连接池

fibjs

[crayon-5d0b4d0ccd3b79125[……]

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fibjs vs node(2)

2014年10月27日无评论

后来想起来fibjs社区里响马提到用keep-alive测试一发，于是又跑了一遍测试

源码见上篇文章

fibjs

[bangbang93@10-4-14-175 ~]$ ab -n 100000 -c 500 -k http://server.bangbang93.com:12345/
This is ApacheBench, Version 2.3 &lt;$Revision: 655654 $&gt;
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking server.bangbang93.com (be patient)
Completed 10000 requests
Completed 20000 requests
Completed 30000 requests
Completed 40000 requests
Completed 50000 requests
Completed 60000 requests
Completed 70000 requests
Completed 80000 requests
Completed 90000 requests
Completed 100000 requests
Finished 100000 requests


Server Software:        
Server Hostname:        server.bangbang93.com
Server Port:            12345

Document Path:          /
Document Length:        16 bytes

Concurrency Level:      500
Time taken for tests:   57.423 seconds
Complete requests:      100000
Failed requests:        0
Write errors:           0
Keep-Alive requests:    100000
Total transferred:      12700000 bytes
HTML transferred:       1600000 bytes
Requests per second:    1741.47 [#/sec] (mean)
Time per request:       287.113 [ms] (mean)
Time per request:       0.574 [ms] (mean, across all concurrent requests)
Transfer rate:          215.98 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0   11 334.1      0   31062
Processing:    25  275 502.9    257   17394
Waiting:       25  275 502.9    257   17394
Total:         25  286 608.6    257   32963

Percentage of the requests served within a certain time (ms)
  50%    257
  66%    262
  75%    265
  80%    267
  90%    315
  95%    430
  98%   1126
  99%   1960
 100%  32963 (longest request)

[bangbang93@10-4-14-175 ~]$ ab -n 100000 -c 500 -k http://server.bangbang93.com:12345/

This is ApacheBench, Version 2.3 <$Revision: 655654 $>

Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking server.bangbang93.com (be patient)

Completed 10000 requests

Completed 20000 requests

Completed 30000 requests

Completed 40000 requests

Completed 50000 requests

Completed 60000 requests

Completed 70000 requests

Completed 80000 requests

Completed 90000 requests

Completed 100000 requests

Finished 100000 requests

Server Software:

Server Hostname: server.bangbang93.com

Server Port: 12345

Document Path: /

Document Length: 16 bytes

Concurrency Level: 500

Time taken for tests: 57.423 seconds

Complete requests: 100000

Failed requests: 0

Write errors: 0

Keep-Alive requests: 100000

Total transferred: 12700000 bytes

HTML transferred: 1600000 bytes

Requests per second: 1741.47 [#/sec] (mean)

Time per request: 287.113 [ms] (mean)

Time per request: 0.574 [ms] (mean, across all concurrent requests)

Transfer rate: 215.98 [Kbytes/sec] received

Connection Times (ms)

min mean[+/-sd] median max

Connect: 0 11 334.1 0 31062

Processing: 25 275 502.9 257 17394

Waiting: 25 275 502.9 257 17394

Total: 25 286 608.6 257 32963

Percentage of the requests served within a certain time (ms)

50% 257

66% 262

75% 265

80% 267

90% 315

95% 430

98% 1126

99% 1960

100% 32963 (longest request)

db.fibjs.find().count()
100500

db.fibjs.find().count()

100500

top里的

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fibjs vs nodejs
2014年10月27日 fibjs vs nodejs无评论

网上见过的对比都是只有一个Hello, world!的输出。其实这毫无意义啊。于是打算自己敲一个对比

大致思路是收到http请求后去mongodb插一条数据，插完返回一段json，用来简单模拟一个创建的请求，以求更贴近业务

先说一下运行环境
CentOS 6.5 X86_64
双路Xeon X5[……]

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D2回来的感悟
2014年10月26日 D2回来的感悟无评论

#D2 2014#
去了趟D2，感觉收获颇多。

一大早从学校出发，从杭州最东面跑到了杭州最西面，终于又见到了这块石头

早上到的有点晚，落座的时候已经过了十点钟了主持人已经开始热场了，所以坐的位置比较靠后。先扔一张主会场的图

左右两边是微博墙，不过居然用的是定时刷新的方式

一点[……]

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Sequelize With SQLite
2014年10月25日 Sequelize With SQLite无评论

BMCD由于不想再附加一个MongoDB的依赖，于是选用了SQLite作为数据库。不过手写SQL语句实在是太烦了，于是我又选用了Sequelilze作为SQLite的ORM模型处理。

折腾了一天之后稍微总结一下它的用法

JavaScript

var Sequelize = require('sequelize'); var sequelize = new Sequelize('bmcd', null, null, { dialect: 'sqlite', storage: 'bmcd.db' });

1
2
3
4
5

var Sequelize = require('sequelize');
var sequelize = new Sequelize('bmcd', null, null, {
dialect: 'sqlite',
storage: 'bmcd.db'
});

用法没啥[……]

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Minecraft PlayStation Edition初体验
2014年10月16日 Minecraft PlayStation Edition初体验有2条评论

由于游戏不允许截图，所以所有图片只好使用手机拍摄的方式

起先是看见Cthuwork的群里有人说PSV版发布了，于是拿出没电的PSV充了会儿电就在新发布列表的第一条里看见了。
价格如图，我是港服，除本体外还有材质包和皮肤包都是另外收钱的

安装好的Launch界面如图，左边可以下载皮肤包，右边可[……]

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UEditor报Cannot read property ‘innerHTML’ of undefined
2014年10月16日 UEditor报Cannot read property ‘innerHTML’ of undefined无评论

UEditor内会有一个iframe，所以如果刚刚使用

JavaScript

var ue = UE.getEditor('editor');

1

var ue = UE.getEditor('editor');

就进行

JavaScript

ue.setContent($('#content').val(), false);

1

ue.setContent($('#content').val(), false);

的话

UEditor源码里setContent是这么写的

[crayon-5d0b4d0cc[……]

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MongoDB的$where使用NodeJS里的变量
2014年10月7日 MongoDB的$where使用NodeJS里的变量无评论

MongoDB的$where允许传递一个JavaScript Function作为判断一个文档是否应该被返回到结果，最简单的比如

JavaScript

$where: function (){ return !!this.id; }

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$where: function (){
return !!this.id;
}

当然真要判断id是否存在别用$where，效率太差，它会把集合内的每个对象或者当前选中的所有对象都跑[……]

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fibjs

fibjs

15206 bangbang[......]

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