The "idle" status has 2 meanings for IOAT kernel performace test module dmaperf: performance test task has finished or no performance task at all. For the lastest kernel(4.8), the userland tool will get the "idle" status before the kernel changed to "running", but for some older kernels(3.17,4.0) the test tool run correctly. So add a sleep syscall before to get the status will fix it. Change-Id: Ia236416607c77b3b8689933fe71ce53a783a04cc Signed-off-by: Changpeng Liu <changpeng.liu@intel.com> |
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