title: Command line flags for profiling the application
role: manual
tags: #command #configuration #manual #zettelstore
syntax: zmk
backward: 00001004050000
box-number: 1
copyright: (c) 2020-present by Detlef Stern <ds@zettelstore.de>
created: 20211122170506
forward: 00001004050000 00001004100000
lang: en
license: EUPL-1.2-or-later
modified: 20250627161347
published: 20250627161347
visibility: public

If you want to measure potential bottlenecks within the software Zettelstore,
there are two [[command line|00001004050000]] flags for enabling the measurement (also called __profiling__):
; ''-cpuprofile FILE''
: Enables CPU profiling.
''FILE'' must be the name of the file where the data is stored.
; ''-memprofile FILE''
: Enables memory profiling.
''FILE'' must be the name of the file where the data is stored.
Normally, profiling will stop when you stop the software Zettelstore.
The given ''FILE'' can be used to analyze the data via the tool ``go tool pprof FILE``.

Please notice that ''-cpuprofile'' takes precedence over ''-memprofile''.
You cannot measure both.

You also can use the [[administrator console|00001004100000]] to start and stop profiling manually for an already running Zettelstore.