unfortunately, it seems that the mapped memory into disk only solves one part
of the problem (smaller memory fingerprint), see
File file = File.createTempFile("hugeImage","tmp");
//file.deleteOnExit();
FileChannel rwChannel = new RandomAccessFile(file,
"rw").getChannel();
int size = (int)(1.79*1024*1024*1024);
ByteBuffer wrBuf =
rwChannel.map(FileChannel.MapMode.READ_WRITE, 0, size);
ByteBuffer wrBuf2 =
rwChannel.map(FileChannel.MapMode.READ_WRITE, 0, size); <<<<
the indicated line will throw an exception like this
Exception in thread "main" java.io.IOException: Cannot allocate memory
at sun.nio.ch.FileChannelImpl.map0(Native Method)
at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:705)
so it seems that, under 32-bit environment, there's no way out.
:-(
best regards
K.
[Message sent by forum member 'shikida' (shikida)]
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