copy and paste this google map to your website or blog!
Press copy button and paste into your blog or website.
(Please switch to 'HTML' mode when posting into your blog. Examples: WordPress Example, Blogger Example)
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-XX:MaxPermSize=size Sets the maximum permanent generation space size This option was deprecated in JDK 8, and superseded by the -XX:MaxMetaspaceSize option Sizes are expressed in bytes Append the letter k or K to indicate kilobytes, m or M to indicate megabytes, g or G to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?
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
Cannot create JVM with -XX:+UseLargePages enabled 10 I have a Java service that currently runs with a 14GB heap I am keen to try out the -XX:+UseLargePages option to see how this might affect the performance of the system I have configured the OS as described by Oracle using appropriate shared memory and page values (these can also be calculated with an online tool)
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
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
Understanding the output of -XX:+PrintCompilation - Stack Overflow I have used -XX:+PrintCompilation, and -verbose:gc flags to ensure that nothing is happening in the background when the timing is being run However, I see something in the output which I cannot understand
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
Decoding facebooks blob video url - Stack Overflow Another alternative that worked in Firefox in Feb 2021: Open the post's permalink Change the page's URL - replace www with m and load that Now use Inspector to navigate down to the div containing the video object - and the video URL will be a direct link Copy-paste that URL into your browser, or create an anchor link to that URL and load your link and right-click to save destination It