-Filled at 120 entries 32-bit, 124 entries 64-bit
-32-bit: 32 + (4*95) -> 512 bytes
-64-bit: 32 + (8*124) -> 1024 bytes
+Per pool, filled at 25 entries (32-bit), 28 entries (64-bit)
+32-bit: 1 byte + 25 bytes + 2 bytes pad + 25*4bytes = 128 bytes
+64-bit: 1 byte + 28 bytes + 3 bytes pad + 28*8 = 256 bytes
+
+Total up to 50 entries (32-bit), 56 entries (64-bit)
+2 pools: 32-bit = 256 bytes
+2 pools: 64-bit = 512 bytes
+
+Total up to 100 entries (32-bit), 112 entries (64-bit)
+4 pools: 32-bit = 512 bytes
+4 pools: 32-bit = 1024 bytes