NAME
dt —
dynamic tracer
SYNOPSIS
pseudo-device dt
DESCRIPTION
System and application tracing can happen in the kernel. It has to be configured and enabled through the ioctl(2) interface exposed by the pseudo-device /dev/dt.
This device can only be opened when the kern.allowdt sysctl(2) variable is set.
FILES
- /dev/dt
- dynamic tracing device.
SEE ALSO
HISTORY
The dt dynamic tracing mechanism first
appeared in OpenBSD 6.7.