By disabling multi-line data processing, report generation for all reports will speed up by 2-4 times. While this will cause no ill effects for reports with single-line tabular data, reports with multi-line data will not display information beyond the first line in each row.
To disable multi-line data processing:
Navigate to C:\ReportServer\ReportServer\apache-tomcat\webapps\jasperserver-pro\WEB-INF\classes.
Open the jasperreports.properties file.
Locate the
net.sf.jasperreports.text.measurer.factory
parameter.Change its value from
net.sf.jasperreports.engine.util.JdkGlyphFixTextMeasurerFactory
tocom.jaspersoft.jasperserver.api.engine.jasperreports.util.SingleLineTextMeasurerFactory
.