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Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
...variable from unsigned to uint64_t made the performance drop by 50% on my PC.
10 Answers
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Disable HttpClient logging
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I put this into my log4j config file
log4j.logger.org.apache.http.wire=WARN
This limits the output to Warning level or above
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Integrating the ZXing library directly into my Android application
..._HOME environment variable to the proper java folder. I found tools.jar in my (for Windows):
C:\Program Files\Java\jdk1.6.0_21\lib
so I set my JAVA_HOME to:
C:\Progra~1\Java\jdk1.6.0_25
the reason for the shorter syntax I found at some site which says:
"It is strongly advised that you
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What does this symbol mean in IntelliJ? (red circle on bottom-left corner of file name, with 'J' in
...h the wrong folder (src) but I guess it was too high in the hierarchy, all my imports went wrong. If you have the same problem, try this with another folder.
– Y-B Cause
Dec 21 '16 at 0:27
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Add Foreign Key to existing table
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Simply use this query, I have tried it as per my scenario and it works well
ALTER TABLE katalog ADD FOREIGN KEY (`Sprache`) REFERENCES Sprache(`ID`);
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Why this line xmlns:android=“http://schemas.android.com/apk/res/android” must be the first in the la
...l's item and build it's own custom UI. I would like to write a schema with my own set of declarations i.e. in menu folder, I want a schema where only the id, title, enabled, icon, iconTint, visible and enabled work and the IDE should not auto-complete to show other items such as actionLayout, menuCa...
Spring Boot + JPA : Column name annotation ignored
... a Spring Boot application with dependency spring-boot-starter-data-jpa . My entity class has a column annotation with a column name. For example:
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Package structure for a Java project?
... Tutorial - Naming a Package
SUN Naming Conventions
For what it's worth, my own personal guidelines that I tend to use are as follows:
Start with reverse domain, e.g. "com.mycompany".
Use product name, e.g. "myproduct". In some cases I tend to have common packages that do not belong to a partic...
how to access iFrame parent page using jquery?
... This will only work if the source of the iframe has jQuery loaded. In my experience, the iframe source would not have jQuery but the need to call one of the parent's jQuery functions is often needed. To do this use: window.document.$("#parentPrice").html() This was the answer Álvaro G. Vicar...
How to update a plot in matplotlib?
... result was, after I replotted the data another set of plots were drawn in my GUI, so now I had 4 plots after recalculation, just like before.
– thenickname
Nov 4 '10 at 16:59
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