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Logging best practices [closed]
...owing specific codes.
e.g. The first digit can detail the general class: 1xxx can be used for 'Start' operations, 2xxx for normal behaviour, 3xxx for activity tracing, 4xxx for warnings, 5xxx for errors, 8xxx for 'Stop' operations, 9xxx for fatal errors, etc.
The second digit can detail the area, ...
How do I write a correct micro-benchmark in Java?
...ral tens of thousands of inner loop iterations.)
Rule 2: Always run with -XX:+PrintCompilation, -verbose:gc, etc., so you can verify that the compiler and other parts of the JVM are not doing unexpected work during your timing phase.
Rule 2.1: Print messages at the beginning and end of timing and ...
How do I set the figure title and axes labels font size in Matplotlib?
...
‘xx-small’, ‘x-small’, ‘small’, ‘medium’, ‘large’, ‘x-large’, ‘xx-large’. See matplotlib.org/api/…
– tsando
Oct 11 '17 at 8:37
...
vertical divider between two columns in bootstrap
...s also have some problems...
When you try to be clever/lazy and use col-XX-X class together with hidden-XX/visible-XX classes inside the same row element.
When you have a lot of columns and need a pixel perfect thing. Since it moves n-1 column 1px to the left.
... But on the other hand it's res...
Hidden features of Scala
...
As a illustration of the use consider the following source:
class A { "xx".r }
Compiling this with scalac -Xprint:typer outputs:
package <empty> {
class A extends java.lang.Object with ScalaObject {
def this(): A = {
A.super.this();
()
};
scala.this.Predef.augm...
Why does Python print unicode characters when the default encoding is ASCII?
...ries.
UTF-8 encoding of unicode code points in the ascii range (0-127):
0xxx xxxx (in binary)
the x's show the actual space reserved to "store" the code point during encoding
The leading 0 is a flag that indicates to the UTF-8 decoder that this code point will only require 1 byte.
upon encod...
Best practice for creating millions of small temporary objects
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If you have experience using these option: -XX:+PrintEscapeAnalysis and -XX:+PrintEliminateAllocations. That would be great to share. Because I don't, saying honestly.
– Mikhail
May 8 '13 at 8:13
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nginx error “conflicting server name” ignored [closed]
...
You have another server_name ec2-xx-xx-xxx-xxx.us-west-1.compute.amazonaws.com somewhere in the config.
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Where can I find Android's default icons? [duplicate]
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\path-to-your-android-sdk-folder\platforms\android-xx\data\res
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oracle top 替代方案 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...合来实现select top n的查询。
select * from (
select * from xxx order by xx
) where rownum <= 100
等同于SQL：select top 100 * from xxx order by xx。oracle top