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Number of affinited processes to engine Number of processes that have been affinitied to this engine. Page number for which the lock requested In Release 9this metric name has changed to: Lock Requested Page Number Page number for which the lock requested, if applicable. Installed Scripts The metrics in this category provide details about the installed scripts. Number of times a procedure was normalized and the tree written back to sysprocedures since last collection. It is better to view the cache as a shared resource than to try to micromanage the caching needs of every table and index. Network packet size Network packet size the session is currently using.

  • The Adaptive Server data cache
  • Sybase Adaptive Server Enterprise Database Metrics
  • Named data cache recommendations

  • The Adaptive Server data cache

    Named data cache recommendations. These cache recommendations can improve performance on both single and multiprocessor servers: Adaptive Server​. is the name of the data cache to be created or configured. Cache names must be unique, and can be up to 30 characters long.

    A cache name does not have to. The default size of this cache is 8M. Creating other caches does not reduce the size of the default data cache.

    Video: Named data cache sybase logo Example on Data Cache

    Also, you can create pools within the named.
    The metrics in this category provide state and statistical information pertaining to databases that are currently in use. Process waiting time seconds Amount of time in seconds that the process has been waiting, if the process is currently in a wait state. Rate at which the reads were made from the device since last collection, that is, the number of reads from device since last collection divided by the elapsed time between two collections.

    Amount of time in seconds that the process has been waiting, if the process is currently in a wait state. To specify or change warning or critical threshold values for each unique combination of "Device Logical Name" and "IO Category" objects, use the Edit Thresholds page. Time in milliseconds the process has spent waiting.

    Sybase Adaptive Server Enterprise Database Metrics

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    The total size of data cache, if the report covers all caches, or the current size of the particular cache, if you specify a cache name.

    Rate at which the user log cache was flushed since last collection, that is, number of times the user log cache was flushed since last collection divided by the elapsed time between two collections. Database Size Size of the database used. Adaptive Server provides user-configurable data caches to improve performance, especially for multiprocessor servers. Number of altered plans The number of plans altered at execution time.

    Number of Active Table Locks Number of active table locks.

    Memory is managed within Sybase ASE by the Buffer Manager. Each named cache can be reserved for specific databases or database objects such as tables​. Tuning.

    Video: Named data cache sybase logo Caching In: Understand, Measure, and Use Your CPU Cache More Effectively

    Named. Caches. Application tuning is determined by the nature of the Tuning using the cache needs the following: Size of the available data cache.

    In data cache, it is useful to contain index levels, system tables, and as much data as feasible. The next chapter talks about creating separate, named data.
    For Release 6 Number of transactions rolled back by the process For Release 7 Transactions roll-back process rate per sec. Waiting Events Statistics The metrics in this category provide a server-wide view of where processes are waiting for an event.

    The default data cache has 2 partitions. Adaptive Server started date Date and time that Adaptive Server was started. Rate at which the buffers were read since last collection, that is, the number of buffers read since last collection divided by the elapsed time between two collections.

    Release 8 or lower KPID of the process waiting for the lock. The metrics in this category provide statistics for all procedures currently stored in the procedure cache.

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    Number of times tasks that have waited for the event.

    Network packet size Network packet size the session is currently using.

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    Rate at which the rows were deleted since last collection, that is, the number of rows deleted since last collection divided by the elapsed time between two collections. One row is added for each role granted to each login. For Release 6 Number of buffers read from disk For Release 7 Buffers read process object rate from disk per sec. Database Instances The metrics in this category provide details about the database instances.

    1⁄2 Both DB2 and ASE use data objects to perform all database related activities.

    1⁄2 Buffer pools in DB2 are analogous to named data caches in ASE. Sybase has something called a data cache, you can have more than 1 cache. to increase the default data cache to MB you would issue the.

    For System Monitoring Plug-In for Sybase Adaptive Server Enterprise (ASE) Name of the cache. DB Name. Name of the database. Object Name. Name of the​.
    The time in seconds that the lock request has not been granted.

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    Unique database identifier for database where the object resides. Rate at which the transactions were started by the process since last collection, that is, the number of transactions started by the process since last collection divided by the elapsed time between two collections.

    Cache partitions can be used to reduce cache spinlock contention without needing to create separate caches and bind database objects to them.

    Named data cache recommendations

    Line number of the statement in SQL batch.

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    Rate at which the IO requests were made since last collection, that is, the number of IO requests since last collection divided by the elapsed time between two collections.

    See Editing Thresholds for information on accessing the Edit Thresholds page. Run Value Value being used by Adaptive Server. Last Used Date Last used date. Rate at which the buffers were read from the cache since last collection, that is, the number of buffers read from cache since last collection divided by the elapsed time between two collections. Currently Executing Queries The metrics in this category provide information for currently executing statements.

    Negative values may be used for user IDs uid.