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Peak memory usage of a linux/unix process
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"VmHWM: Peak resident set size" might be more usable to measure RAM usage (instead of VmPeak that includes a lot of other things too).
– jfs
Feb 26 '19 at 6:29
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Using Enums while parsing JSON with GSON
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From the documentation for Gson:
Gson provides default serialization and deserialization for Enums... If you would prefer to change the default representation, you can do so by registering a type adapter through GsonBuild...
How to debug Lock wait timeout exceeded on MySQL?
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END OF INNODB MONITOR OUTPUT
============================
1 row in set, 1 warning (0.00 sec)
You should consider increasing the lock wait timeout value for InnoDB by setting the innodb_lock_wait_timeout, default is 50 sec
mysql> show variables like 'innodb_lock_wait_timeout';
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Can someone explain in simple terms to me what a directed acyclic graph is?
...execution time, you can calculate the maximum execution time of the entire set
among many other things.
Outside the realm of application programming, any decent automated build tool (make, ant, scons, etc.) will use DAGs to ensure proper build order of the components of a program.
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How to convert an Array to a Set in Java
I would like to convert an array to a Set in Java. There are some obvious ways of doing this (i.e. with a loop) but I would like something a bit neater, something like:
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What is the --save option for npm install?
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Update npm 5:
As of npm 5.0.0, installed modules are added as a dependency by default, so the --save option is no longer needed. The other save options still exist and are listed in the documentation for npm install.
Original answer:
Before ...
Difference between object and class in Scala
...rnet and have noticed in some examples an object is declared at the start of the example.
13 Answers
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php 遍历目录批量转换文件编码 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...编码遍历当前目录及子目录。把所有的文件编码转换为UTF-8，代码如下：< ?php php iconv.php exec it on root dir$path = dirname(__F...遍历当前目录及子目录。把所有的文件编码转换为UTF-8，代码如下：
< ?php
//php iconv.php
//exec it on root dir
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Convert data.frame columns from factors to characters
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The global option
stringsAsFactors:
The default setting for arguments of data.frame and read.table.
may be something you want to set to FALSE in your startup files (e.g. ~/.Rprofile). Please see help(options).
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Finding most changed files in Git
...o (and git help effort has no information about it :/). I assume the first set of result are ordered by filename, and the second one by number of commit per file. The man page also mention github.com/tj/git-extras/issues to report issues
– Asenar
Dec 20 '16 at ...