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java Programming Glossary: kernelhttp://stackoverflow.com/questions/155243/why-is-it-impossible-without-attempting-i-o-to-detect-that-tcp-socket-was-grac Or is it a design decision to avoid a costly call into the kernel With the help of the users who have already posted some answers..
Java maximum memory on Windows XP http://stackoverflow.com/questions/171205/java-maximum-memory-on-windows-xp patches C runtime versions etc. Device drivers and other kernel bits have their own address space the other 2GB of the 4GB 32..
Real differences between “java -server” and “java -client”? http://stackoverflow.com/questions/198577/real-differences-between-java-server-and-java-client
How to discover memory usage of my application in Android http://stackoverflow.com/questions/2298208/how-to-discover-memory-usage-of-my-application-in-android Going lower level you can use the Debug API to get raw kernel level information about memory usage http developer.android.com.. than the actual total RAM. The Pss number is a metric the kernel computes that takes into account memory sharing basically each.. saw in meminfo. Why is that Well procrank uses a different kernel mechanism to collect its data than meminfo does and they give..
http://stackoverflow.com/questions/2842695/what-is-microbenchmarking performance of something small like a system call to the kernel of an operating system. The danger is that people may use whatever..
Want to know whether enough memory is free on a linux machine to deploy a new application http://stackoverflow.com/questions/3784974/want-to-know-whether-enough-memory-is-free-on-a-linux-machine-to-deploy-a-new-ap that line is quite misleading because the Linux kernel tries to make optimal use of the available memory in at least.. throughput over responsiveness so some people tune their kernel to change this behaviour. The first point is the source of confusion.. the memory used for caching in the used memory amount. The kernel though will cache as much as possible for performance reasons...
using serial port RS-232 in android? http://stackoverflow.com/questions/4621580/using-serial-port-rs-232-in-android gnu.io.android You still might need to rebuild your kernel and maybe recompile the shared library for your environment...
How do I write a correct micro-benchmark in Java? http://stackoverflow.com/questions/504103/how-do-i-write-a-correct-micro-benchmark-in-java Rule 1 Always include a warmup phase which runs your test kernel all the way through enough to trigger all initializations and..
Is System.nanoTime() completely useless? http://stackoverflow.com/questions/510462/is-system-nanotime-completely-useless or variable freq TSCs cause time inconsistencies. 2.4 kernels really had no protection against this and early 2.6 kernels.. really had no protection against this and early 2.6 kernels didn't do too well here either. As of 2.6.18 and up the logic.. clock_gettime CLOCK_REALTIME then it's safe ish as of kernel 2.6.18 on x86 and always on PowerPC because IBM and Motorola..
Green Threads vs Non Green Threads http://stackoverflow.com/questions/5713142/green-threads-vs-non-green-threads are scheduled by an ordinary user level process not by the kernel. So they can be used to simulate multi threading on platforms..
Fastest Gaussian blur implementation http://stackoverflow.com/questions/98359/fastest-gaussian-blur-implementation this question You should use the fact that a Gaussian kernel is separable i. e. you can express a 2D convolution as a combination..
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