Copy Read Hits is the percentage of Cache Copy Read requests that hit the Cache, i.e., did not require a disk read in order to provide access to the page in the Cache. A Copy Read is a file read operation that is satisfied by a memory copy from a Cache page to the application's buffer. The LAN Redirector uses this method for retrieving Cache information, as does the LAN Server for small transfers. This is a method used by the disk file systems as well.
Parsed from file winnt-perf.mib.txt
Company: microsoft
Module: WINDOWS-NT-PERFORMANCE
Child arc 0 is used to translate between SNMPv1 and SNMPv2 notification parameters as explained in IETF RFC 2576, section 3.
cachCopyReadHitsPercent OBJECT-TYPE SYNTAX INTEGER ACCESS read-only STATUS mandatory DESCRIPTION "Copy Read Hits is the percentage of Cache Copy Read requests that hit the Cache, i.e., did not require a disk read in order to provide access to the page in the Cache. A Copy Read is a file read operation that is satisfied by a memory copy from a Cache page to the application's buffer. The LAN Redirector uses this method for retrieving Cache information, as does the LAN Server for small transfers. This is a method used by the disk file systems as well." ::= { cache 16 }
| OID | Name | Sub children | Sub Nodes Total | Description |
|---|---|---|---|---|
| 1.3.6.1.4.1.311.1.1.3.1.1.2.16.0 | cachCopyReadHitsPercent | 0 | 0 | None |
| OID | Name | Sub children | Sub Nodes Total | Description |
|---|---|---|---|---|
| 1.3.6.1.4.1.311.1.1.3.1.1.2.1 | cpuprocessorEntry, connmSExchangeMTA-ConnectionsEntry, cacheDataMapsPerSec, cachDataMapsPerSec | 31 | 31 | Performance information for one particular instance of 'processor' object. |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.2 | cacheSyncDataMapsPerSec, cachSyncDataMapsPerSec | 1 | 1 | Sync Data Maps/sec counts the frequency that a file system such as NTFS or HPFS maps a page of a file into the Cache to read th… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.3 | cachAsyncDataMapsPerSec, cacheAsyncDataMapsPerSec | 1 | 1 | Async Data Maps/sec is the frequency that an application using a file system such as NTFS or HPFS to map a page of a file into … |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.4 | cachDataMapHitsPercent, cacheDataMapHitsPercent | 1 | 1 | Data Map Hits is the percentage of Data Maps in the Cache that could be resolved without having to retrieve a page from the dis… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.6 | cacheDataMapPinsPerSec, cachDataMapPinsPerSec | 1 | 1 | Data Map Pins/sec is the frequency of Data Maps in the Cache that resulted in pinning a page in main memory, an action usually … |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.8 | cachPinReadsPerSec, cachePinReadsPerSec | 1 | 1 | Pin Reads/sec is the frequency of reading data into the Cache preparatory to writing the data back to disk. Pages read in this… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.9 | cachSyncPinReadsPerSec, cacheSyncPinReadsPerSec | 1 | 1 | Sync Pin Reads/sec is the frequency of reading data into the Cache preparatory to writing the data back to disk. Pages read in… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.10 | cacheAsyncPinReadsPerSec, cachAsyncPinReadsPerSec | 1 | 1 | Async Pin Reads/sec is the frequency of reading data into the Cache preparatory to writing the data back to disk. Pages read … |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.11 | cachePinReadHitsPercent, cachPinReadHitsPercent | 1 | 1 | Pin Read Hits is the percentage of Cache Pin Read requests that hit the Cache, i.e., did not require a disk read in order to pr… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.13 | cachCopyReadsPerSec, cacheCopyReadsPerSec | 1 | 1 | Copy Reads/sec is the frequency of reads from Cache pages that involve a memory copy of the data from the Cache to the applicat… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.14 | cacheSyncCopyReadsPerSec, cachSyncCopyReadsPerSec | 1 | 1 | Sync Copy Reads/sec is the frequency of reads from Cache pages that involve a memory copy of the data from the Cache to the app… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.15 | cachAsyncCopyReadsPerSec, cacheAsyncCopyReadsPerSec | 1 | 1 | Async Copy Reads/sec is the frequency of reads from Cache pages that involve a memory copy of the data from the Cache to the ap… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.18 | cachMDLReadsPerSec, cacheMDLReadsPerSec | 1 | 1 | MDL Reads/sec is the frequency of reads from Cache pages that use a Memory Descriptor List (MDL) to access the data. The MDL c… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.19 | cachSyncMDLReadsPerSec, cacheSyncMDLReadsPerSec | 1 | 1 | Sync MDL Reads/sec is the frequency of reads from Cache pages that use a Memory Descriptor List (MDL) to access the pages. The… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.20 | cachAsyncMDLReadsPerSec, cacheAsyncMDLReadsPerSec | 1 | 1 | Async MDL Reads/sec is the frequency of reads from Cache pages using a Memory Descriptor List (MDL) to access the pages. The M… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.21 | cachMDLReadHitsPercent, cacheMDLReadHitsPercent | 1 | 1 | MDL Read Hits is the percentage of Cache Memory Descriptor List (MDL) Read requests that hit the Cache, i.e., did not require d… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.23 | cacheReadAheadsPerSec, cachReadAheadsPerSec | 1 | 1 | Read Aheads/sec is the frequency of Cache reads where the Cache detects sequential access to a file. The read aheads permit th… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.24 | cacheFastReadsPerSec, cachFastReadsPerSec | 1 | 1 | Fast Reads/sec is the frequency of reads from Cache pages that bypass the installed file system and retrieve the data directly … |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.25 | cacheSyncFastReadsPerSec, cachSyncFastReadsPerSec | 1 | 1 | Sync Fast Reads/sec is the frequency of reads from Cache pages that bypass the installed file system and retrieve the data dire… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.26 | cachAsyncFastReadsPerSec, cacheAsyncFastReadsPerSec | 1 | 1 | Async Fast Reads/sec is the frequency of reads from Cache pages that bypass the installed file system and retrieve the data dir… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.27 | cachFastReadResourceMissesPerSec, cacheFastReadResourceMissesPerSec | 1 | 1 | Fast Read Resource Misses/sec is the frequency of Cache misses necessitated by the lack of available resources to satisfy the r… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.28 | cachFastReadNotPossiblesPerSec, cacheFastReadNotPossiblesPerSec | 1 | 1 | Fast Read Not Possibles/sec is the frequency of attempts by an Application Program Interface (API) function call to bypass the … |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.29 | cachLazyWriteFlushesPerSec, cacheLazyWriteFlushesPerSec | 1 | 1 | Lazy Write Flushes/sec is the frequency the Cache's Lazy Write thread has written to disk. Lazy Writing is the process of upda… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.30 | cachLazyWritePagesPerSec, cacheLazyWritePagesPerSec | 1 | 1 | Lazy Write Pages/sec is the frequency the Cache's Lazy Write thread has written to disk. Lazy Writing is the process of updati… |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.31 | cachDataFlushesPerSec, cacheDataFlushesPerSec | 1 | 1 | Data Flushes/sec is the frequency the Cache has flushed its contents to disk as the result of a request to flush or to satisfy … |
| 1.3.6.1.4.1.311.1.1.3.1.1.2.32 | cachDataFlushPagesPerSec, cacheDataFlushPagesPerSec | 1 | 1 | Data Flush Pages/sec is the number of pages the Cache has flushed to disk as a result of a request to flush or to satisfy a wri… |