bug particles

[Elvissuperstar007]

Hi. I just want to remind about particles motion blur problem which persist for many years.
If scene consist a huge amount of particles with enabled motion blure, MB calculation time increase frame by frame even if amount of particles is constant.
And if restart render MB calculation time significantly reduced FOR SAME FRAME and start to increase again.
This problem makes it impossible to render a huge number of particles.
I write about this problem 6 times - no reaction. The problem is in any scene with a huge number of particles of about 1,000,000.

[aoktar]

It's not a bug, a handicap of motion blur system with a huge amount of dynamic data.
see: viewtopic.php?f=85&t=74034#p378311