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Azienda News:
- java - Difference between -XX:MaxPermSize=size and -XX:MaxMetaspaceSize . . .
What is the difference between -XX:MaxPermSize and -XX:MaxMetaspaceSize options in terms of memory settings? The difference between -XX:MaxPermSize and -XX:MaxMetaspaceSize is largely moot -XX:MaxPermSize was for sizing the old "permanent generation" (PermGen) heap This was removed in Java 8 XX:MaxMetaspaceSize is for sizing the new "Metaspace" off-heap memory space that is used by the JVM
- Difference between -XX:+UseParallelGC and -XX:+UseParNewGC
3 Using -XX:+UseParNewGC along with -XX:+UseConcMarkSweepGC, will cause higher pause time for Minor GCs, when compared to -XX:+UseParallelGC This is because, promotion of objects from Young to Old Generation will require running a Best-Fit algorithm (due to old generation fragmentation) to find an address for this object
- 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
- 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
- java - Error: The processing instruction target matching [xX] [mM . . .
Error: The processing instruction target matching " [xX] [mM] [lL]" is not allowed Asked 12 years, 4 months ago Modified 1 year, 11 months ago Viewed 395k times
- java - Why should we set -XX:InitialRAMPercentage and -XX . . .
In addition, setting -XX:InitialRAMPercentage and -XX:MaxRAMPercentage may take away some flexibility in the heuristic configuration of the garbage collector, which may mean you have to do more explicit tuning yourself to get the best performance
- SSN Regex for 123-45-6789 OR XXX-XX-XXXX - Stack Overflow
Can someone provide me a regex for SSN that matches either 123-45-6789 OR XXX-XX-XXXX I currently have ^\d{3}-?\d{2}-?\d{4}$ which matches the first expression, but I need to add the second expression to it as an alternative Thanks!
- jboss - java. lang. OutOfMemoryError: Metaspace - -XX:MaxMetaspaceSize . . .
Since we are getting java lang OutOfMemoryError: Metaspace we have planned to increase the -XX:MaxMetaspaceSize size Question: Currently we are using 6GB of RAM in the Server and if we want to increase the size for -XX:MaxMetaspaceSize, what is the maximum value we can set?
- what is the difference between xx-large and larger in CSS?
xx-large is an absolute size keyword, which sets the size of the text to a specific size, regardless of what its current size is For more information, refer to Mozilla's CSS docs on the font-size property Example 1 Here, the font-size of the body element is set to 24px Adding xx-large to a paragraph sets its size absolutely to 32px
- amazon ec2 - How to solve ssh: connect to host ec2-XX-XX-XX-XX. compute . . .
I am trying to connect to my AWS EC2 instance from gitbash in windows10 machine I am using the below command in ssh ssh: connect to host ec2-XX-XX-XX-XX compute-1 amazonaws com port 22: Connect
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