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java Programming Glossary: mappedbytebufferhttp://stackoverflow.com/questions/1023200/memory-mapped-files-in-java of ByteBuffer.hb byte which is always set to null when a MappedByteBuffer is created. Which kinda sucks for me because I was hoping to..
http://stackoverflow.com/questions/11398762/custom-hashmap-code-issue channel2 new RandomAccessFile str1 r .getChannel MappedByteBuffer mbb2 channel2.map FileChannel.MapMode.READ_ONLY 0 channel2.size.. channel3 new RandomAccessFile str2 r .getChannel MappedByteBuffer mbb3 channel3.map FileChannel.MapMode.READ_ONLY 0 channel3.size.. channel new RandomAccessFile str1 rw .getChannel MappedByteBuffer mbb channel.map FileChannel.MapMode.READ_WRITE 0 savenum 8 mbb.order..
fastest (low latency) method for Inter Process Communication between Java and C/C++ http://stackoverflow.com/questions/2635272/fastest-low-latency-method-for-inter-process-communication-between-java-and-c microsecond for passing a single byte with code like this MappedByteBuffer mem new RandomAccessFile tmp mapped.txt rw .getChannel .map..
How to unmap a file from memory mapped using FileChannel in java? http://stackoverflow.com/questions/2972986/how-to-unmap-a-file-from-memory-mapped-using-filechannel-in-java new RandomAccessFile f rw FileChannel fc raf.getChannel MappedByteBuffer mbf fc.map FileChannel.MapMode.READ_ONLY 0 fc.size fc.close.. mapped files share improve this question From the MappedByteBuffer javadoc A mapped byte buffer and the file mapping that it represents..
Buffered RandomAccessFile java http://stackoverflow.com/questions/5614206/buffered-randomaccessfile-java question Well I do not see a reason not to use java.nio.MappedByteBuffer even if the files are bigger the Integer.MAX_VALUE. Evidently.. Evidently you will not be allowed to define a single MappedByteBuffer for the whole file. But you could have serveral MappedByteBuffers.. for the whole file. But you could have serveral MappedByteBuffers accessing different regions of the file. The definition of..
What is the fastest way to read a large number of small files into memory? http://stackoverflow.com/questions/625420/what-is-the-fastest-way-to-read-a-large-number-of-small-files-into-memory like this final File file final FileChannel channel final MappedByteBuffer buffer file new File fileName fin new FileInputStream file channel.. import java.io.InputStream import java.nio.MappedByteBuffer import java.nio.channels.FileChannel import java.nio.channels.FileChannel.MapMode.. stream stream null try final FileChannel channel final MappedByteBuffer buffer final int fileSize int sum stream new FileInputStream..
Can multiple threads see writes on a direct mapped ByteBuffer in Java? http://stackoverflow.com/questions/7002510/can-multiple-threads-see-writes-on-a-direct-mapped-bytebuffer-in-java Javadoc and source for things like FileChannel ByteBuffer MappedByteBuffer etc. It seems clear that a particular ByteBuffer and relevant..
Binary search in a sorted (memory-mapped ?) file in Java http://stackoverflow.com/questions/736556/binary-search-in-a-sorted-memory-mapped-file-in-java share improve this question I am a big fan of Java's MappedByteBuffers for situations like this. It is blazing fast. Below is a snippet.. in my own application benchmarked java.io streams against MappedByteBuffer in a production environment and posted the results on my blog.. with raw data graphs and all. Two second summary My MappedByteBuffer based implementation was about 275 faster. YMMV. To work for..
http://stackoverflow.com/questions/810212/inter-jvm-communication of file. memory map file. FileChannel ch file.getChannel MappedByteBuffer shm ch.map FileChannel.MapMode.READ_WRITE 0 shmSize ch.close..
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