I know that this is getting OOT, but i'm corious .. using top alternate view, i found out that my squid is using 1224m of virtual memory (VIRT). From that number, 268m are SWAP, 955m are RES. So, some of my squid are not in the physical memory. Yet from free i got 0 (zero) swap usage.. where do the 268m part go to ??