| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| namespace Apache.Ignite.Core |
| { |
| /// <summary> |
| /// Memory usage metrics. |
| /// </summary> |
| public interface IDataRegionMetrics |
| { |
| /// <summary> |
| /// Gets the memory policy name. |
| /// </summary> |
| string Name { get; } |
| |
| /// <summary> |
| /// Gets the count of allocated pages. |
| /// </summary> |
| long TotalAllocatedPages { get; } |
| |
| /// <summary> |
| /// Gets the size of allocated pages in bytes. |
| /// </summary> |
| long TotalAllocatedSize { get; } |
| |
| /// <summary> |
| /// Gets the allocation rate, in pages per second. |
| /// </summary> |
| float AllocationRate { get; } |
| |
| /// <summary> |
| /// Gets the eviction rate, in pages per second. |
| /// </summary> |
| float EvictionRate { get; } |
| |
| /// <summary> |
| /// Gets the percentage of pages fully occupied by entries that are larger than page. |
| /// </summary> |
| float LargeEntriesPagesPercentage { get; } |
| |
| /// <summary> |
| /// Gets the page fill factor: free space to overall size ratio across all pages. |
| /// </summary> |
| float PageFillFactor { get; } |
| |
| /// <summary> |
| /// Gets the number of dirty RAM pages. |
| /// </summary> |
| long DirtyPages { get; } |
| |
| /// <summary> |
| /// Gets the rate (pages per second) at which pages get replaced with other pages from persistent storage. |
| /// </summary> |
| float PageReplaceRate { get; } |
| |
| /// <summary> |
| /// Gets the average age (in milliseconds) for pages being replaced from persistent storage. |
| /// </summary> |
| float PageReplaceAge { get; } |
| |
| /// <summary> |
| /// Gets the count of pages loaded to RAM. |
| /// </summary> |
| long PhysicalMemoryPages { get; } |
| |
| /// <summary> |
| /// Gets the size of pages loaded to RAM in bytes. |
| /// </summary> |
| long PhysicalMemorySize { get; } |
| |
| /// <summary> |
| /// Gets checkpointing buffer size in pages. |
| /// </summary> |
| long CheckpointBufferPages { get; } |
| |
| /// <summary> |
| /// Gets checkpointing buffer size in bytes. |
| /// </summary> |
| long CheckpointBufferSize { get; } |
| |
| /// <summary> |
| /// Gets memory page size in bytes. |
| /// </summary> |
| int PageSize { get; } |
| } |
| } |