> On Mon, Aug 11, 2008 at 03:18:07PM -0500, Eric Sandeen wrote: > > As just an initial inquiry, I'm wondering how people would feel about > > putting some tracepoints (trace_mark()) into ext[34] for monitoring the > > fs behavior. > > I think it's a great idea! Do you have some specific tracepoints in > mind? I think two viewpoint exist. An administrator want to - performance mesurement - which IO aborted it, if any error happend. In addition, OS vendor want to - split out fs problem and device problem So, candidate of tracepints are - jbd activity - boundary activity between fs and block layer I don't fs expert, it is just idea. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html