Key Performance Indicators for Sybase IQ

Lists and describes the key performance indicators (KPIs) that provide the statistics displayed on Sybase IQ screens and charts in Sybase Control Center.

Each Sybase IQ data collection includes a subset of the KPIs listed here.

KPI Description
Active INC incoming connections Number of internode communication (INC) incoming connections.
Active INC outgoing connections Number of INC outgoing connections.
Active INC transactions Number of active INC transactions.
Active load table statements Number of active load table statements.
Active transactions Total number of active transactions including user and INC transactions.
Active user connections Number of active user connections.
Active user transactions Number of active user transactions.
Available communication buffers Number of available network communication buffers.
Bytes received Number of bytes per second received during client/server communications.
Bytes received uncompressed Number of bytes per second that would have been received during client/server communications if compression was disabled.
Bytes sent Number of bytes per second sent during client/server communications.
Bytes sent uncompressed Number of bytes per second that would have been sent during client/server communications if compression was disabled.
Catalog cache dirty pages percent Percentage of pages in the catalog cache where data has been modified and stored in the buffer cache and has not yet been written to disk.
Catalog cache hits Number of catalog cache hits per second.
Catalog cache size Current catalog cache size in megabytes.
Catalog cache in use percent Percentage of the catalog cache in use.
Catalog cache pinned Number of pinned catalog cache pages.
Catalog cache pinned percent Percentage of the catalog cache pinned.
Catalog cache reads Number of catalog cache page lookups per second.
Catalog store disk reads Number of kilobytes per second that have been read from the catalog store.
Catalog store disk writes Number of kilobytes per second that have been written to the catalog store.
CPU total usage Percentage of the Sybase IQ server CPU in use, including both system and user usage.
CPU system usage Percentage of the CPU being used by the system.
CPU user usage Percentage of the CPU being used by the users.
Dbspace size in use Amount of space being used in the dbspace, in kilobytes.
Dbspace space available percent Percentage of dbspace available.
Dbspace file size in use Amount of space being used in the dbspace file, in kilobytes.
Dbspace file space available percent Percentage of the dbspace file available for use.
IQ active operations Number of active concurrent operations admitted by Sybase IQ resource governor.
IQ threads in use Number of threads used by the Sybase IQ server.
IQ waiting operations Number of IQ operations waiting for the resource governor.
Main cache dirty pages percent Percentage of pages in the main cache where data has been modified and stored in the buffer cache and has not yet been written to disk.
Main cache hits Number of main cache hits per second.
Main cache in use percent Percentage of the main cache in use.
Main cache pinned Number of pinned main cache pages.
Main cache pinned percent Percentage of the main cache pinned.
Main cache reads Number of main cache page lookups per second.
Main cache size Current main cache size in megabytes.
Main store disk reads Number of kilobytes per second that have been read from the main store.
Main store disk writes Number of kilobytes per second that have been written to the main store.
Maximum memory allocated Maximum memory allocated by the Sybase IQ server in megabytes.
Memory allocated Memory allocated by the Sybase IQ server in megabytes.
Number of active connections Total number of active connections, including user and internode communication connections.
Number of connections available Number of concurrent connections available.
Number of IQ threads available Number of threads available in the IQ server.
Requests per second Number of times per second the server has been accessed to handle a new request or continue processing an existing request.
Server availability

State of the Sybase IQ server. Valid values are:


  • UNKNOWN(0)
  • STOPPED(1)
  • PENDING(2)
  • RUNNING(3)
  • WARNING(4)
  • ERROR(5)
Temp cache dirty pages percent Percentage of pages in the temporary cache where data has been modified and stored in the buffer cache and has not yet been written to disk.
Temp cache hits Number of temporary cache hits per second.
Temp cache in use percent Percentage of the temporary cache in use.
Temp cache pinned Number of pinned temporary cache pages.
Temp cache pinned percent Percentage of the temporary cache pinned.
Temp cache reads Number of temporary cache page lookups per second.
Temp cache size Current temporary cache size in megabytes.
Temp store disk reads Number of kilobytes per second that have been read from the temporary store.
Temp store disk writes Number of kilobytes per second that have been written to the temporary store.
Total communication buffers Total number of network communication buffers.
Unscheduled requests Number of requests that are currently queued up waiting for an available server thread.
User connections per minute Number of user connections per minute.
User disconnections per minute Number of user disconnections per minute.
Related tasks
Graphing Performance Counters
Creating an Alert


Created February 25, 2010. Send feedback on this help topic to Sybase Technical Publications: pubs@sybase.com