pub fn custom_cgroup_add_load_imbalance(ctx: &Ctx<'_>) -> Result<AssertResult>Expand description
Add a heavy 16-worker cgroup mid-run alongside two light YieldHeavy cgroups.
cg_0 and cg_1 are the steady YieldHeavy residents — they live
for the whole scenario on the Backdrop. cg_2 joins mid-run as a
step-local CgroupDef and tears down at the step boundary.