Block I/O Layer Tracing using blktraceblktrace is a really useful tool to see what I/O operations are going on inside the Linux block I/O layer. So what does blktrace provide: plenty of block layer information on I/O operations very low level (2%) overhead when tracing highly configurable - trace I/O on one or several devices, selectable filter events live and playback tracing There are many different types of events that can be captu
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