I just noticed the following when I ran the top command a couple of minutes ago:
PID COMMAND %CPU TIME #TH #PRTS #MREGS RPRVT RSHRD RSIZE VSIZE 3368 Safari 10.1% 82:36.27 29 1556 2917 175M- 26.0M 153M- 740M-
Does Safari really need 740 MB of virtual memory? Seems a tad bit much.