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[WIP] Implements reusable sample buffers across all components. This

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produces a significant reduction in memory usage, especially for tuners
like the airspy and hackrf that produce 10/20 MSPS sample rates.  This
is observed to be around 66% reduction in peak memory usage and provides
a more stable memory utilization across time reducing stress on the
garbage collector.

Use of these reusable memory buffers will be pushed further down into
the processing chain modules to ensure we keep new object creation
to the lowest levels possible.
This commit is contained in:
Denny
2018-02-03 10:05:16 -05:00
parent fcd3c2fd46
commit f2f2c92afe
56 changed files with 1630 additions and 1255 deletions
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5
src/main/java/io/github/dsheirer/source/tuner/TunerManager.java
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@@ -31,6 +31,7 @@ import io.github.dsheirer.source.tuner.rtl.RTL2832Tuner;
import io.github.dsheirer.source.tuner.rtl.RTL2832TunerController;
import io.github.dsheirer.source.tuner.rtl.e4k.E4KTunerController;
import io.github.dsheirer.source.tuner.rtl.r820t.R820TTunerController;
import io.github.dsheirer.source.tuner.usb.USBMasterProcessor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.usb4java.Device;
@@ -53,11 +54,11 @@ public class TunerManager
* buffers can register with this processor and the processor will auto-start and auto-stop while USB transfer
* processors are registered.
*/
public static final LibUSBTransferProcessor LIBUSB_TRANSFER_PROCESSOR;
public static final USBMasterProcessor LIBUSB_TRANSFER_PROCESSOR;
static
{
LIBUSB_TRANSFER_PROCESSOR = new LibUSBTransferProcessor();
LIBUSB_TRANSFER_PROCESSOR = new USBMasterProcessor();
}
public TunerManager(MixerManager mixerManager, TunerModel tunerModel)