On 11/25/2015 12:36 PM, Deyoung Hong (dhong) wrote:
I think this is an fio bug. Description: When specifying ramp_time, cpu may show over 100% (when using a polling mode driver). If ramp_time is not specified, cpu values appear to be correct. You normally don't see this problem because most drivers don't utilize high CPU usage. You will have to use some custom driver that does polling, for example (something like http://www.dpdk.org/). OS: Any (but tested on Linux CentOS 6.6)
This should fix it: http://git.kernel.dk/cgit/fio/commit/?id=210dd0fc66b8956065e098bb9314febe8993e849 Try current -git and hopefully it'll behave better. -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
