Messages in this thread | | | Date | Sun, 30 Nov 2008 23:30:19 +0530 | From | "Trilok Soni" <> | Subject | keypad/touchscreen driver events latencies using LTTng on ARM? |
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Hi,
I would like to try LTTng to measure the keypad and touchscreen drivers events latency on ARM based board, which typically runs less than 1GHz frequency. I have recently tried LTTng patches as per compatibility list on LTTng website on 2.6.25 kernel on ARM11 based board, but on LTTv it shows the IRQ min/max interval times on nanoseconds precision, would that be correct? Because I thought it could be possible to microseconds format until with hrtimers support right? Just guide so that I can use this tool to effectively measure driver latencies. Thanks.
-- ---Trilok Soni http://triloksoni.wordpress.com http://www.linkedin.com/in/triloksoni
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