HI Suresh > Is there any test program which captures interrupt latency (for x86) ? > I checked realfeel but it is user mode program and am not sure of its > accuracy. I've posted some code to this list on this 3.3.09 with the subject: "Latency measurement module". Which does exactly that. ableit with the small problem that the TSC is not in sync on AMD SMP machines. Regards Tim -- ''=~('(?{'.('._@@[~'^'^-)./^').'"'.('}@@~-]@_^__'^'))-^~<.;;-}').',$/})') -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html