Archive Subsystem performance counters

Attribute

Description

Annotation Average Size

Average size of annotations stored.

Annotation Largest Size

Largest annotation stored.

Annotations Created/sec

Rate at which annotations are created.

Annotations Deleted/sec

Rate at which annotations are deleted.

Annotations Edited/sec

Rate at which annotations are edited.

Annotations Read/sec

Rate at which annotations are read.

Archive Header Flushes/sec

Rate at which archive headers are written to disk.

Archive Record Allocations/sec

Rate at which archive records are allocated.

ArcEvent Calls/sec

Rate of single archive event calls.

Archive Backup Flag

Bitmask value indicating backup state. Bit values are: 0x01 - Backup in progress; 0x02 - Legacy backup in progress; 0x10 - Archive shifts are prevented until backup completes.

Archive Count

Number of registered archives.

Archive Cycles/Sec

Number of subsystem cycles per second.

Archive Point Cache Loaded Flag

Indicates if the point cache has been successfully loaded.

Archived Events/sec

Rate of successful event addition to the archive.

Archiving Flag

Indicates if data is being archived.

Cache Clean Operations/sec

Rate at which archive cache records are removed from memory.

Cache Flush Operations/sec

Rate at which points are flushed to disk.

Cache Record Count

Archive cache records in memory.

Cache Record Disk Reads/sec

Rate of archive cache disk reads.

Cache Record Memory Reads/sec

Rate of archive cache memory hits.

Cache Records Created/sec

Rate at which archive cache records are created.

Cache Records Deleted/sec

Rate at which archive cache records are deleted.

CompEvents Calls/sec

Rate of compressed events calls.

Config. Max Unflushed Events/pt

Maximum number of unflushed events per point.

Configured Cache Record Pool

Maximum number of cache records in the read-only pool.

Connector Event Read Exec Time

No longer a valid counter. Will be removed in a future version.

Connector Events Read Exec Time

No longer a valid counter. Will be removed in a future version.

Connector Events Read/sec

No longer a valid counter. Will be removed in a future version.

Connector Read Operations/sec

No longer a valid counter. Will be removed in a future version.

Connector Summaries Exec Time

No longer a valid counter. Will be removed in a future version.

Connector Summaries/sec

No longer a valid counter. Will be removed in a future version.

Corrupted Archives Count

Total number of archives that are known to be corrupted.

Current Cache Record Pool

Current maximum number of cache records, this may be lower that the configured value due to low memory resources.

Current Max Unflushed Events/pt

Current maximum number of unflushed events per point, this may be lower that the configured value due to low memory resources.

Empty Archive Count

Number of empty, shiftable archives.

Event Queue Chunk Size

Number of events read per event queue read operation.

Event Queue Reader Delay

Amount of time (in milliseconds) the event queue reader thread is being throttled.

Events Cascade/sec

Rate of out-of-order events causing record shifts.

Events Read/sec

Rate of archive events read.

Failed Archive Shift Flag

Indicates if the most recent archive shift failed.

Failed Events/sec

Number of events which failed to be added to memory or archive files.

File Management Operations/sec

Rate at which archive file management operations are performed.

File Management Queue Size

Number of pending archive file management operations in memory queue.

Flushed Events/sec

Number of events successfully flushed to archive.

Flush Queue Size

Number of pending flush operations in memory queue.

Full Write Cache Flushes/sec

Number of full write caches that were flushed.

GetSnapshot Calls/sec

Rate of internal calls to PI Snapshot Subsystem.

High Priority Flush Queue Entries/sec

Rate at which flush requests are added to the high priority flush queue.

High Priority Flush Queue Size

Number of flush requests in the high priority flush queue.

InterpEvents Calls/sec

Rate of interpolated events calls.

Out of Order Events/sec

Out of order events posted in the archive.

Overflow Data Record/sec

Rate at which data archive records are created.

Overflow Index Record/sec

Rate at which index archive records are created.

PIBatches Created/sec

Rate of PI Batch creation.

PIBatches Deleted /sec

Rate of PI Batch deletion.

PIBatches Edited/sec

Rate of PI Batch edits.

PIBatches Read /sec

Rate of PI Batch access.

PICampaigns Created/sec

Rate of PI Campaign creation.

PICampaigns Deleted /sec

Rate of PI Campaign deletion.

PICampaigns Edited/sec

Rate of PI Campaign edits.

PICampaigns Read /sec

Rate of PI Campaign access.

PITransferRecords Created/sec

Rate of PI Transfer Record creation.

PITransferRecords Deleted /sec

Rate of PI Transfer Record deletion.

PITransferRecords Edited/sec

Rate of PI Transfer Record edits.

PITransferRecords Read/sec

Rate of PI Transfer Record access.

PIUnitBatches Created/sec

Rate of PI Unit Batch creation.

PIUnitBatches Deleted /sec

Rate of PI Unit Batch deletion.

PIUnitBatches Edited/sec

Rate of PI Unit Batch edits.

PIUnitBatches Read /sec

Rate of PI Unit Batch access.

PlotEvents Calls/sec

Rate of plotted (trended) event calls.

Point Flushes Last Cycle

Number of points flushed to disk during last cycle. Busy points might get flushed several times per cycle.

Preemptive Flushes/sec

Rate of preemptive flushes performed.

Primary Archive % Used

Percent of used records in primary archive file.

Primary Archive Average Events/record

Average number of events per record in the primary archive.

Primary Archive Flushed Events/sec

Rate of events being flushed to the primary archive.

Primary Archive Index Records

Number of index records in the primary archive.

Primary Archive Record Allocations/sec

Rate at which archive records are allocated in the primary archive

Primary Archive Records Fill/sec

Fill rate of records in primary archive.

Primary Archive Total Events

Number of events in the primary archive.

Primary Archive Number

Internal index number of archive current assigned to primary position.

Read Operations/sec

Rate of archive read calls. Each call can return multiple events. The rate of event retrieval is Events Read/sec.

Record Disk Reads/sec

Rate of archive disk reads (includes Cache Record Disk Reads/sec).

Record Disk Writes/sec

Rate of archive disk writes.

Record Load Time Average BASE

Denominator for Record Load Time Average.

Record Load Time Average

Average time (in microseconds) required to load a record from an archive.

Record Write Time Average BASE

Denominator for Record Write Time Average.

Record Write Time Average

Average time (in microseconds) required to write a record to an archive.

Shift or System Backup Flag

Indicates if an archive shift or system backup is in process.

Skipped Flushes/sec

Rate of flushes skipped due to point being previously flushed.

Summary Calls/sec

Rate of summary/filter expression calls.

Time to Archive Shift

Number of seconds until the archive is projected to shift. This time is not calculated if the archive is less than 20% full.

Total Unflushed Events

Total number of unflushed events.

Unflushed Points

Number of points that have at least one unflushed event.

Write Cache Flush Size Average BASE

Denominator for Write Cache Flush Size Average.

Write Cache Flush Size Average

Average size of write caches when flushed.

Write Contention Points

Number of points in write contention last cycle.

Write Contentions/sec

Rate of write lock contentions.