realtime:documentation:howto:tools:hwlat
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realtime:documentation:howto:tools:hwlat [2018/08/24 09:27] ebugden [Ftrace - hwlat tracer] Add links to kernel documentation |
realtime:documentation:howto:tools:hwlat [2018/08/24 09:48] (current) ebugden [Ftrace - hwlat tracer] Remove ftrace highlight on kernel doc link |
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| hwlat is an Ftrace tracer designed to detect latencies caused by a system's firmware or hardware. The tracer was originally intended for [[realtime:documentation:howto:debugging:smi-latency:start|detecting SMIs]], but it can detect other low level latencies as well. | hwlat is an Ftrace tracer designed to detect latencies caused by a system's firmware or hardware. The tracer was originally intended for [[realtime:documentation:howto:debugging:smi-latency:start|detecting SMIs]], but it can detect other low level latencies as well. | ||
| - | This article is brief because it is dedicated to a specific Ftrace tracer. More complete information about how to use Ftrace can be found [[realtime:documentation:howto:tools:ftrace|here]]. More details about this tracer can be found in the kernel documentation for [[https://www.kernel.org/doc/html/latest/trace/ftrace.html?highlight=ftrace#hardware-latency-detector|Ftrace]] and in the kernel documentation for the [[https://www.kernel.org/doc/html/latest/trace/hwlat_detector.html|Hardware Latency Detector]]. | + | This article is brief because it is dedicated to a specific Ftrace tracer. More complete information about how to use Ftrace can be found [[realtime:documentation:howto:tools:ftrace|here]]. More details about this tracer can be found in the kernel documentation for [[https://www.kernel.org/doc/html/latest/trace/ftrace.html#hardware-latency-detector|Ftrace]] and in the kernel documentation for the [[https://www.kernel.org/doc/html/latest/trace/hwlat_detector.html|Hardware Latency Detector]]. |
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realtime/documentation/howto/tools/hwlat.txt ยท Last modified: 2018/08/24 09:48 by ebugden
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