On the Performance tab, the performance tuning of the CPU, sessions, memory (RAM), and document handling can be managed.
Reload Limits
Max Concurrent Reloads
Sets how many documents that may be reloaded at any one time.
CPU
CPU Affinity
By default, the QlikView Server (QVS) automatically selects the processors to use on the hosting computer. It is possible to configure whether specific processors are to be used, or not. To deselect the use of a CPU, untick the corresponding check box. To select a CPU to use, tick the corresponding check box.
CPU Throttle
By default, the QlikView Server (QVS) is set to use 100% of the CPU capacity, that is, no throttling is used. It is possible to increase or decrease the priority of the QVS process, depending on how much CPU capacity the process is utilizing. In this way, some of the CPU capacity can be freed and used by other applications, improving the overall performance of the server. To set a threshold value, enter a suitable figure in this text box.
Default value: 0 % (0 means no throttling).
Sessions
Maximum Number of Concurrent Sessions
For each document that a user opens on the QVS, a new user session is generated. It is possible to configure the maximum number of concurrent user sessions that are allowed on the QVS. To set the maximum number of concurrent user sessions, enter a suitable figure in this text box.
Default value: 5000 (an empty field means no limit).
Maximum Inactive Session Time
User sessions, which have had no activity during a specified time limit, can be configured to be closed by the QVS. To set the session timeout, enter a suitable figure in this text box.
Default value: 1800 seconds (0 is not allowed; empty means no limit).
Possible Session Timeout
User sessions, which have had no activity during a specified time limit, can be configured to be eligible for being closed by the QVS, if needed. To set the session timeout, enter a suitable figure in this text box.
Default value: 1800 seconds (0 is not allowed; empty means no limit).
Maximum Total Session Time
All user sessions, active or not, can be configured to be terminated by the QVS after a specified time limit. To set the session timeout, enter a suitable figure in this text box.
Default value: No limit (0 is not allowed; empty means no limit).
Working Set
The minimum and maximum of the physical amount of RAM that is allocated to, and can be used by, an application or process can be configured. This way it is possible to control whether an application can be swapped out of physical memory, or not.
Low
The minimum of the physical amount of RAM, in percentage, which can be used by an application. To set the minimum amount of memory, enter a suitable figure in this text box.
Default value: 70 %.
High
The maximum of the physical amount of RAM, in percentage, which can be used by an application. To set the maximum amount of memory, enter a suitable figure in this text box.
Default value: 90 %.
Document
Object Calculation Time Limit
The maximum amount of time that the QlikView Server will attempt to calculate a chart object can be configured. The time is set in seconds of total CPU time. To set the maximum amount of time, enter a suitable figure in this text box.
Default value: 60 seconds (of total CPU time).
Max Symbols in Charts
The maximum number of symbols to plot in one chart can be configured. To set the maximum number of symbols, enter a suitable figure in this text box.
Default value: 100.
Allow Document Auto Load
It is possible to configure so that documents are automatically loaded and unloaded. To enable automated document loading and unloading, tick this check box. To disable automated document loading and unloading, untick this check box.
Availability (Source Documents)
Availability (User Documents)
