You can use Azure Monitor and Azure Log Analytics to collect performance and diagnostics data and to determine compute needs. This documentation can help you : https://video2.skills-academy.com/en-us/azure/azure-monitor/
Also, Azure provides cost management and budgeting features that can help you track and manage your spending on SSIS Integration Runtime. https://azure.microsoft.com/fr-fr/products/cost-management/
If you need more : https://video2.skills-academy.com/en-us/sql/integration-services/lift-shift/ssis-azure-lift-shift-ssis-packages-overview?view=sql-server-ver16