java Programming Glossary: mmap
What is the best way to access memory in Java, similar to mmap? http://stackoverflow.com/questions/1125534/what-is-the-best-way-to-access-memory-in-java-similar-to-mmap is the best way to access memory in Java similar to mmap I'm working on a Java application that needs to communicate.. a C application. The C application uses shared memory and mmap to communicate and I need the Java application to have access..
Why is creating a Thread said to be expensive? http://stackoverflow.com/questions/5483047/why-is-creating-a-thread-said-to-be-expensive within pthread_create the stack is allocated by a call to mmap as follows mmap 0 attr.__stacksize PROT_READ PROT_WRITE PROT_EXEC.. the stack is allocated by a call to mmap as follows mmap 0 attr.__stacksize PROT_READ PROT_WRITE PROT_EXEC MAP_PRIVATE.. PROT_EXEC MAP_PRIVATE MAP_ANONYMOUS 1 0 According to man mmap the MAP_ANONYMOUS flag causes the memory to be initialized to..
Virtual Memory Usage from Java under Linux, too much memory used http://stackoverflow.com/questions/561245/virtual-memory-usage-from-java-under-linux-too-much-memory-used or anon which indicates a block of memory allocated via mmap . Starting from the top we have The JVM loader ie the program..
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 is just a thin wrapper around CreateFileMapping Windows or mmap posix . As such you have direct access to the buffer cache of.. in Windows is the eventual synchronization to disk in fact mmap does the virtual mem without a file thing by mapping dev null.. through an open read operation . For more info look up mmap in posix or CreateFileMapping for Windows which was built almost..
space in Java command-line arguments http://stackoverflow.com/questions/743454/space-in-java-command-line-arguments execve bin echo bin echo 1 2 3 93 vars 0 brk 0 0x2400000 mmap NULL 4096 PROT_READ PROT_WRITE MAP_PRIVATE MAP_ANONYMOUS 1 0.. PROT_WRITE MAP_PRIVATE MAP_ANONYMOUS 1 0 0x7f420075b000 mmap NULL 4096 PROT_READ PROT_WRITE MAP_PRIVATE MAP_ANONYMOUS 1 0..
exception while Read very large file > 300 MB http://stackoverflow.com/questions/985076/exception-while-read-very-large-file-300-mb Meg of memory in your virtual address space as the file is mmap ed into it although this is outside the heap. Note that the.. about this. Next you create a ByteBuffer backed by this mmap ed file. This should be fine as it's just a view of the mmap.. ed file. This should be fine as it's just a view of the mmap ed file and should thus take minimal extra memory. It will be..
|