Hi, For profiling apps see here: https://www.brendangregg.com/blog/2020-07-15/systems-performance-2nd-edition.html HTH, Ian -- -- ACCU - Professionalism in programming - http://www.accu.org -- My writing - https://sites.google.com/site/ianbruntlett/ -- Free Software page - https://sites.google.com/site/ianbruntlett/home/free-software