cassandra/test/resources/nodetool/help/profile$start

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NAME
nodetool profile start - Run Async-Profiler on a Cassandra process
SYNOPSIS
nodetool [(-h <host> | --host <host>)] [(-p <port> | --port <port>)]
[(-pw <password> | --password <password>)]
[(-pwf <passwordFilePath> | --password-file <passwordFilePath>)]
[(-u <username> | --username <username>)] profile start
[(-d <duration> | --duration <duration>)]
[(-e <event> | --event <event>)...]
[(-f <outputFormat> | --format <outputFormat>)]
[(-o <filename> | --output <filename>)]
OPTIONS
-d <duration>, --duration <duration>
Duration of profiling, defaults to '60s'. Accepts string values in
the form of '5m', '30s' and similar.
-e <event>, --event <event>
Event(s) to profile, one of or combination of 'cpu', 'alloc',
'lock', 'wall', 'nativemem', 'cache_misses', delimited by comma,
defaults to 'cpu'
-f <outputFormat>, --format <outputFormat>
Output format, one of 'flat', 'traces', 'collapsed', 'flamegraph',
'tree', 'jfr', defaults to 'flamegraph'
-h <host>, --host <host>
Node hostname or ip address
-o <filename>, --output <filename>
File name to save profiling results into, defaults to a file of
name 'yyyy-MM-dd-HH-mm-ss.html'
-p <port>, --port <port>
Remote jmx agent port number
-pw <password>, --password <password>
Remote jmx agent password
-pwf <passwordFilePath>, --password-file <passwordFilePath>
Path to the JMX password file
-u <username>, --username <username>
Remote jmx agent username