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浅谈TCP优化 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...可以控制接收窗口的大小：
shell> sysctl -a | grep mem
net.ipv4.tcp_rmem = <MIN> <DEFAULT> <MAX>
如果我们出于传输性能的考虑，设置了一个足够大的缓冲，那么当大量请求同时到达时，内存会不会爆掉？通常不会，因为Linux本身有一个缓冲...
PHP json_decode() returns NULL with valid JSON?
...I have used this and got the array but my language specific characters (ş,ç,ö,..) has been deleted too.
– zkanoca
Dec 17 '14 at 10:56
5
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Downloading MySQL dump from command line
...backup.sql
You can even go as far as auto-compressing the output using gzip (if your DB is very big):
$ mysqldump -u [uname] -p db_name | gzip > db_backup.sql.gz
If you want to do this remotely and you have the access to the server in question, then the following would work (presuming the...
Fastest Way to Serve a File Using PHP
...f_symlink);
Obviously you'll need a way to prune them either when the script to create them is called or via cron (on the machine if you have access or via some webcron service otherwise)
Under apache you need to be able to enable FollowSymLinks in a .htaccess or in the apache config.
Access con...
What is the equivalent to a JavaScript setInterval/setTimeout in Android/Java?
...on for drawer selection and fragmentTransaction
– Gonçalo
May 26 '15 at 14:48
7
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Chrome: Uncaught SyntaxError: Unexpected end of input
...ame here just to confirm this solution.
– Luís Assunção
Mar 15 '16 at 17:54
add a comment
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performing HTTP requests with cURL (using PROXY)
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@BipinVayalu, what do you want to check? At this way, what I describe above, the client uses the proxy "direct way", not transparently. So, the proxy gives the standard HTTP answers (including HTTP codes). If you export a wrong...
Convert javascript array to string
...or comma, this was the only easy way.
– Talha Talip Açıkgöz
Oct 7 '17 at 10:19
1
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Detect if value is number in MySQL
... '0' FROM col1), TRIM(LEADING '0' FROM col1));
– François Breton
Jun 5 '15 at 15:51
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Rails 3: I want to list all paths defined in my rails application
...ath is recognized by your app's router, see this.
– XåpplI'-I0llwlg'I -
Aug 21 '15 at 7:21
In a specific context, I ...