Description
We need an ability to perform preloading (streaming) test for quite long time (2 hours or even more). Currently this might be done only by setting preloading amount parameter to some really big value. This requires lot of memory and many nodes in the cluster. This is not always possible due to hardware limits.
Suggest moving preloading from CacheRandomOperation benchmark to a separate one and add ability to perform it in a loop during predefined time.