Lines Matching refs:tracing

1 		In-kernel memory-mapped I/O tracing
8 MMIO tracing was originally developed by Intel around 2003 for their Fault
10 Jeff Muizelaar created a tool for tracing MMIO accesses with the Nouveau
26 supported, but tracing is unreliable and may miss events if more than one CPU
36 $ echo mmiotrace > /sys/kernel/debug/tracing/current_tracer
37 $ cat /sys/kernel/debug/tracing/trace_pipe > mydump.txt &
39 $ echo "X is up" > /sys/kernel/debug/tracing/trace_marker
40 $ echo nop > /sys/kernel/debug/tracing/current_tracer
54 $ echo mmiotrace > /sys/kernel/debug/tracing/current_tracer
57 $ cat /sys/kernel/debug/tracing/trace_pipe > mydump.txt &
63 During tracing you can place comments (markers) into the trace by
64 $ echo "X is up" > /sys/kernel/debug/tracing/trace_marker
70 $ echo nop > /sys/kernel/debug/tracing/current_tracer
82 $ cat /sys/kernel/debug/tracing/buffer_size_kb
85 $ echo 128000 > /sys/kernel/debug/tracing/buffer_size_kb
119 tracing is discouraged.
147 zero if it is not recorded. PID is always zero as tracing MMIO accesses