jakesmith/HPCC-Platform — comment on commit 7dbdc9ca16eff3064257e4daadf47f9ee4ca6897
File: thorlcr/activities/nsplitter/thnsplitterslave.cpp line 431
By jakesmith:

Timed with spinlock or criticalsection, with longer test and there's no significant timing difference.
So I will revert the startLock to a critical section.