Duration display none bug

[zhangjinpeng87]

I found sometimes the duration display 0, you can see the following picture. Maybe the duration exceed some bound?

[Sraw]

Actually, I have the same issue. And I think it looks like if one task has errors, then the duration information after will be never updated anymore. In your example, we can see that SCAN has errors. And when the error occurs, there isn't enough data for the duration information(95th may require at least 100 data). So it will remain at 0 until the end of the world.

@bb7133 Hope your team can have a look :)