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MongoDB与内存 - 大数据 & AI - 清泛网 - 专注C++内核技术
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shell> cat /proc/$(pidof mongod)/limits | grep stack | awk -F 'size' '{print int($NF)/1024}'
如果Stack过大（比如：10240K）的话没有意义，简单对照命令结果中的Size和Rss：
shell> cat /proc/$(pidof mongod)/smaps | grep 10240 -A 10
所有连接消耗的内存加起来会...
MongoDB与内存 - 大数据 & AI - 清泛网 - 专注C++内核技术
...
shell> cat /proc/$(pidof mongod)/limits | grep stack | awk -F 'size' '{print int($NF)/1024}'
如果Stack过大（比如：10240K）的话没有意义，简单对照命令结果中的Size和Rss：
shell> cat /proc/$(pidof mongod)/smaps | grep 10240 -A 10
所有连接消耗的内存加起来会...
How to set layout_gravity programmatically?
...but this is a problem that is not answered correctly and moreover I've ran into this problem myself.
Here's the long bit, if you're only interested in the answer please scroll all the way down to the code:
android:gravity and android:layout_gravity works differently. Here's an article I've read th...
Separate REST JSON API server and client? [closed]
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I'm currently working on converting a huge CMS from option 1 to option 3, and it's going well. We chose to render the markup server-side because SEO is a big deal to us, and we want the sites to perform well on mobile phones.
I'm using node.js for t...
C# Double - ToString() formatting with two decimal places but no rounding
...ow, so many up votes and yet it's using rounding. It may be necessary to point out that rounding is heading towards the closest decimal place requested, whereas truncating is chopping off after the closest decimal place requested.
– mysticcoder
Aug 24 '15 at 10...
How to delete an object by id with entity framework
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Raw sql query is fastest way I suppose
public void DeleteCustomer(int id)
{
using (var context = new Context())
{
const string query = "DELETE FROM [dbo].[Customers] WHERE [id]={0}";
var rows = context.Database.ExecuteSqlCommand(query,id);
// rows >= 1 - count of ...
Add comma to numbers every three digits
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Something like this if you're into regex, not sure of the exact syntax for the replace tho!
MyNumberAsString.replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$1,");
share
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A method to reverse effect of java String.split()? [duplicate]
I am looking for a method to combine an array of strings into a delimited
String. An opposite to split().
16 Answers
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How to set a default entity property value with Hibernate
...inition:
@Column(name = "myColumn", nullable = false, columnDefinition = "int default 100")
Notice that the string in columnDefinition is database dependent. Also if you choose this option, you have to use dynamic-insert, so Hibernate doesn't include columns with null values on insert. Otherwise...
Does Dart support enumerations?
...in() {
var a = Fruit.apple;
switch (a) {
case Fruit.apple:
print('it is an apple');
break;
}
// get all the values of the enums
for (List<Fruit> value in Fruit.values) {
print(value);
}
// get the second value
print(Fruit.values[1]);
}
The old approach...