|
- c++ - . c vs . cc vs. . cpp vs . hpp vs . h vs . cxx - Stack Overflow
Possible Duplicates: * h or * hpp for your class definitions What is the difference between cc and cpp file suffix? I used to think that it used to be that: h files are header files for C and C
- Difference between Xms and Xmx and XX:MaxPermSize
-XX:MaxPermSize=size Sets the maximum permanent generation space size This option was deprecated in JDK 8, and superseded by the -XX:MaxMetaspaceSize option Sizes are expressed in bytes Append the letter k or K to indicate kilobytes, m or M to indicate megabytes, g or G to indicate gigabytes References: How is the java memory pool divided?
- Regular Expression to validate xx-xxxxxxx or xxx-xx-xxxx
string1 = xxx-xx-xxxx or string1 = xx-xxxxxxx How can I make the regex accept both kinds of values for the same element? The x's represent numbers only so total number of digits = 9 (anything between 0-9) total number of elements in the value is either 11 or 10 depending on which format and total number of dashes is either 2 or 1
- Decoding facebooks blob video url - Stack Overflow
This method will get the video and its audio AS SEPARATE FILES The downloaded video will have no sound, but you will be able to download its audio file and connect it to the video in some video editing program if you need to In Google Chrome, go to Facebook Open the Chrome Developer Tools (F12) Go to the Network tab in the Developer Tools (it's at the top of the Developer Tools window
- Validation for xxx-xxx-xxxx or (xxx)xxx-xxxx - Stack Overflow
Precisely, this will also match - xxx-(xxx)xxx-xxxx, but again it's not specified what OP don't want to match So, it's a valid solution
- What are the -Xms and -Xmx parameters when starting JVM?
The flag Xmx specifies the maximum memory allocation pool for a Java Virtual Machine (JVM), while Xms specifies the initial memory allocation pool This means that your JVM will be started with Xms amount of memory and will be able to use a maximum of Xmx amount of memory For example, starting a JVM like below will start it with 256 MB of memory and will allow the process to use up to 2048 MB
- Increase heap size in Java - Stack Overflow
-XX:MaxRAMPercentage=percent The MaxRAMPercentage parameter allows setting the maximum heap size for a JVM running with a large amount of memory (greater than 200 MB) This is the option that can be used for the case mentioned in the question: -XX:MaxRAMPercentage=75 -XX:MinRAMPercentage=percent
- Is -XX:+UseG1GC the correct replacement for -Xincgc?
So what's the equivalent replacement for it? -XX:+UseG1GC? Background: The application has a heap of 8GB and creates a lot of short living objects I noticed that it often paused for some seconds to do garbage collection Out of curiosity I added the -Xincgc and found that the pauses were gone and overall performance improved ~4 times
|
|
|