public long used;
        /** Committed non-heap memory in bytes */
        public long committed;
        /** Maximum non-heap memory in bytes */
        public long max;
        /** The percentage of non-heap memory usage. */
        public short percent;
    }

    /**
     * Data transfer object representing JVM buffer pool statistics.
     */

 */
package jcifs.internal.smb2.rdma;

/**
 * RDMA memory access permissions for registered memory regions.
 * These flags control what operations can be performed on a memory region.
 */
public enum RdmaAccess {
    /**
     * Local read access to the memory region
     */
    LOCAL_READ,

    /**
     * Local write access to the memory region
     */
    LOCAL_WRITE,

    /**

 * This class encapsulates RDMA channel metadata including remote memory keys,
 * addresses, and lengths for direct memory access operations.
 */
public class RdmaChannelInfo {

    private final Smb2RdmaTransform transform;

    /**
     * Create new RDMA channel info
     *
     * @param remoteKey remote memory key for RDMA access (token)
     * @param address remote memory address (offset)
     * @param length length of the memory region

/**
 * TCP memory region implementation.
 *
 * For TCP fallback, memory regions are just wrappers around
 * ByteBuffers since no real RDMA registration is needed.
 */
public class TcpMemoryRegion extends RdmaMemoryRegion {

    private static final AtomicInteger keyGenerator = new AtomicInteger(1000);

    /**
     * Create new TCP memory region
     *
     * @param buffer memory buffer

     */
    RdmaConnection connect(String hostname, int port) throws IOException;

    /**
     * Register memory region for RDMA operations
     *
     * @param buffer memory buffer to register
     * @param access access permissions for the memory region
     * @return registered memory region
     * @throws IOException if memory registration fails
     */

                }
                dfos.flush();
                final ContentCache contentCache;
                logger.fine(() -> "Response in " + (dfos.isInMemory() ? "Memory" : "File"));
                if (dfos.isInMemory()) {
                    contentCache = new ContentCache(dfos.getData());
                } else {
                    contentCache = new ContentCache(dfos.getFile());
                }

    public abstract ByteBuffer receive(int timeout) throws IOException;

    /**
     * Perform RDMA read operation
     *
     * @param localRegion local memory region to read into
     * @param remoteAddress remote memory address
     * @param remoteKey remote memory key
     * @param length number of bytes to read
     * @throws IOException if read fails
     */

import java.util.concurrent.atomic.AtomicLong;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * RDMA buffer manager for efficient memory region pooling.
 *
 * Manages pools of pre-registered memory regions to avoid the overhead
 * of frequent registration/deregistration during RDMA operations.
 */
public class RdmaBufferManager implements AutoCloseable {

## 1. Overview

SMB Direct enables high-performance data transfer using Remote Direct Memory Access (RDMA) technology. This provides ultra-low latency and high bandwidth data transfer by bypassing the traditional TCP/IP stack and allowing direct memory-to-memory transfers between client and server.

## 2. Protocol Specification Reference

- **MS-SMBD**: SMB2 Remote Direct Memory Access (RDMA) Transport Protocol

| `minio_node_mem_buffers_avg`   | Buffers memory on the node (avg).         |
| `minio_node_mem_buffers_max`   | Buffers memory on the node (max).         |
| `minio_node_mem_cache`         | Cache memory on the node.                 |
| `minio_node_mem_cache_avg`     | Cache memory on the node (avg).           |
| `minio_node_mem_cache_max`     | Cache memory on the node (max).           |