natural-name probe: 25000 sequential + 25000 random 32-char names
names=50000 windows=50000 max-per-window=1 windows-with->1=0
created=512 errors=0
created=1024 errors=0
created=1536 errors=0
created=2048 errors=0
created=2560 errors=0
created=3072 errors=0
created=3584 errors=0
created=4096 errors=0
created=4608 errors=0
created=5120 errors=0
created=5632 errors=0
created=6144 errors=0
created=6656 errors=0
created=7168 errors=0
created=7680 errors=0
created=8192 errors=0
created=8704 errors=0
created=9216 errors=0
created=9728 errors=0
created=10240 errors=0
created=10752 errors=0
created=11264 errors=0
created=11776 errors=0
created=12288 errors=0
created=12800 errors=0
created=13312 errors=0
created=13824 errors=0
created=14336 errors=0
created=14848 errors=0
created=15360 errors=0
created=15872 errors=0
created=16384 errors=0
created=16896 errors=0
created=17408 errors=0
created=17920 errors=0
created=18432 errors=0
created=18944 errors=0
created=19456 errors=0
created=19968 errors=0
created=20480 errors=0
created=20992 errors=0
created=21504 errors=0
created=22016 errors=0
created=22528 errors=0
created=23040 errors=0
created=23552 errors=0
created=24064 errors=0
created=24576 errors=0
created=25088 errors=0
created=25600 errors=0
created=26112 errors=0
created=26624 errors=0
created=27136 errors=0
created=27648 errors=0
created=28160 errors=0
created=28672 errors=0
created=29184 errors=0
created=29696 errors=0
created=30208 errors=0
created=30720 errors=0
created=31232 errors=0
created=31744 errors=0
created=32256 errors=0
DONE created=32526 errors=17474