20ec8912d0
Automatic merge from submit-queue
use make slice to store objects to improve efficiency
Signed-off-by: allencloud <allen.sun@daocloud.io>
**What this PR does / why we need it**:
we we know the slice length in advance, I think we had better use make to create the specified length of slice. This will improve some kind of performance. Since if we create a slice with []type{}, we did not know how much space runtime should reserve, since slice implementation should be continuous in memory. While when we make a slice with specified length, runtime would reserve a continuous memory space which will not result in slice movement in case of current space is not enough.
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
NONE
**Special notes for your reviewer**:
NONE
**Release note**:
```release-note
NONE
```
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