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Http长连接200万尝试及调优 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...冲的大小，但是不能超过最小与最大。为了使每个socket所使用的内存数最小，我这里设置默认值为4096。
net.ipv4.tcp_wmem 用来配置写缓冲的大小。
读缓冲与写缓冲在大小，直接影响到socket在内核中内存的占用。
而 net.ipv4.tcp_mem ...
Unable to show a Git tree in terminal
... answered Nov 19 '16 at 21:30
JSON C11JSON C11
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...
How do I PHP-unserialize a jQuery-serialized form?
... data: $("#form_insert").serialize()
},
dataType: "JSON",
success: function (jsonStr) {
$("#result1").html(jsonStr['back_message']);
}
});
}
</script>
<form id="form_insert">
<input type="text" name="f1" value="a"/>
&...
Convert javascript array to string
...example, ', '
var arr = ['a', 'b', 'c'].join(', '); // "a, b, c"
Using JSON.stringify()
This is cleaner, as it quotes strings inside of the array and handles nested arrays properly.
var arr = JSON.stringify(['a', 'b', 'c']); // '["a","b","c"]'
...
Google Tag Manager 入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...Hans，国外的话，之前也有很多类似的商业产品。
在正式使用Tag Manager之前，我们先看看没有这个工具之前，我们是如何管理Tag脚本的。
Step 1：
按照Google Analytics的配置要求，我们把如下的脚本放到网站全局的页脚，如：footer.i...
How can I fix WebStorm warning “Unresolved function or method” for “require” (Firefox Add-on SDK)
...rt {*} from 'node module' and specify "target": "CommonJS" inside tsconfig.json
– Bhoomtawath Plinsut
Jan 5 '17 at 8:05
...
How to implement the activity stream in a social network
..., and a target.
For example: Max has posted a link to Adam's wall.
Their JSON's Spec has reached version 1.0 at the time of writing, which shows the pattern for the activity that you can apply.
Their format has already been adopted by BBC, Gnip, Google Buzz Gowalla, IBM, MySpace, Opera, Socialcas...
Is there an equivalent to CTRL+C in IPython Notebook in Firefox to break cells that are running?
... was tested on MACOS with python3 and requires jupyter notebook, requests, json and psutil.
Put the script in your home directory and then usage looks like:
python ~/interrupt_bad_kernels.py
Interrupt kernel chews cpu.ipynb; PID: 57588; CPU: 2.3%? (y/n) y
Script code below:
from os import getpi...
从网购到火车票，对比淘宝12306网为何如此烂？ - 大数据 & AI - 清泛网 - ...
...网站高负载的呢?据淘宝技术人员分享，淘宝的整体架构使用了如下措施来应对：一应用无状态(淘宝session框架);二有效使用缓存(Tair);三应用拆分(HSF);四数据库拆分(TDDL);五异步通信(Notify);六非结构化数据存储(TFS,NOSQL);七监控、预...
How do I create a MongoDB dump of my database?
...
What is the significance of metadata.json for restoring?
– Nabin
May 8 '18 at 14:21
...