What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespaces from that line:

/kind bug
/kind task
/kind feature

What does this PR do / why do we need it:
GE后端的_get_summary_tensor_data()接口获取数据会有滞后，在执行前需要缓冲一段时间，否则拿到的数据是错误的

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewers: