=== xen-0001: credit2 balance_load() VCPU swap-search O(V²) per scheduler tick ===
N=100   k=100  : defective=0.085ms  fixed=0.003ms  speedup=26.0x
N=500   k=500  : defective=2.282ms  fixed=0.035ms  speedup=65.3x
N=1000  k=1000 : defective=9.311ms  fixed=0.045ms  speedup=206.8x
N=2000  k=2000 : defective=36.622ms  fixed=0.096ms  speedup=382.4x

