Performance problems

I'm running Informix Online v7 on a Sun Sparc 20 with 160MB of physical memory, and 700MB of swap space. The operating system is Solaris 2.4. The single Informix database server is so configured that it takes up 55MB of memory. Some other applications are present also. I'm investigating performance problems. The vmstat output below appears to show that I have almost 100 processes swapped out! Can this be true? This picture remains consistent over a number of hours. sar -w shows no swapping whatsoever, and I can see that, despite these stats, the Informix database server is still doing I/O and clocking up CPU, and I can connect to it OK to run utilities. Does anyone have any ideas? Thanks a lot Neil Truby Chase Manhattan Bank Bournemouth, UK neil.truby@chase.com # vmstat 10 10 procs memory page disk faults cpu r b w swap free re mf pi po fr de sr f0 s1 s1 s1 in sy cs us sy id 1 0 5 413404 5084 2 122 343 66 141 0 390 0 0 9 9 1160 2763 933 61 17 22 0 0 93 397976 2992 8 153 284 11 179 0 398 0 0 23 19 1641 2664 791 63 16 22 0 0 93 395328 2584 0 134 296 27 568 0 395 0 0 19 3 1251 2055 691 60 14 26 0 0 93 394968 3096 0 64 4 12 173 0 119 0 0 27 1 777 2234 676 48 11 41 0 0 93 394696 3736 0 51 6 0 0 0 0 0 0 2 0 1173 2147 993 31 10 59 2 0 93 393256 2900 0 515 25 2 192 0 107 0 0 1 19 1665 6782 981 46 48 6 0 0 93 394872 5236 0 107 3 0 0 0 0 0 0 6 2 1177 3406 1035 38 20 42 0 0 93 394948 5380 0 50 0 0 0 0 0 0 0 7 1 589 1925 612 43 10 47 0 0 93 394952 5408 0 62 0 0 0 0 0 0 0 17 0 738 4062 567 54 10 36 0 0 93 395616 5576 0 24 3 0 0 0 0 0 0 2 98 521 2013 719 33 8 59