please tell me what is the pools below or where could i search for docs
about it. 
especially:

a) why "rndsample" needs over half a megabyte memory?!
b) mclpl what is it and why is it so large
c) what is sigapl, procpl 

it no problem on 384MB machine but how would it be on 16MB? all pools
below are 5MB and does not count buffer cache

Kmem statistics are not being gathered by the kernel.
Memory resource pool statistics
Name        Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
phpool        40       29    0        0     1     0     1     1     0   inf    0
pmappl        68    91570    0    91546     1     0     1     1     0   inf    0
vmsppl       188    91570    0    91546     2     0     2     2     0   inf    0
vmmpepl       64  1450892    0  1450638     6     0     6     6     0   inf    1
uaoeltpl      84        0    0        0     0     0     0     0     0   inf    0
aobjpl        52        0    0        0     0     0     0     0     0   inf    0
amappl        40   710082    0   709935     2     0     2     2     0   inf    0
mbpl         256   285881    0   285881     2     0     2     2     1   inf    2
mclpl       2048   275323    0   275323     6     0     6     6     4   256    6
sockpl       164    17129    0    17128     1     0     1     1     0   inf    0
ttypl        284       72    0        0     6     0     6     6     0   inf    0
rndsample    528     6248    0     6240     2     0     2     2     0   inf    0
procpl       404    91574    0    91546     4     0     4     4     0   inf    1
pgrppl        24      210    0      198     1     0     1     1     0   inf    0
pcredpl       24    91574    0    91546     1     0     1     1     0   inf    0
plimitpl     156    17065    0    17058     1     0     1     1     0   inf    0
rusgepl       72    91546    0    91546     1     0     1     1     0   inf    1
filepl        48  5363682    0  5363654     1     0     1     1     0   inf    0
cwdipl        12    91570    0    91546     1     0     1     1     0   inf    0
fdescpl      124    91570    0    91546     2     0     2     2     0   inf    1
vnodepl      208     9669    0        0   509     0   509   509     0   inf    0
ncachepl      72     9669    0        0   173     0   173   173     0   inf    0
ffsinopl     216   203877    0   194213   537     0   537   537     0   inf    0
cd9660nopl   108        0    0        0     0     0     0     0     0   inf    0
wdcspl        48   391533    0   391533     1     0     1     1     0   inf    1
extent        20       24    0        7     1     0     1     1     0   inf    0
scxspl       148       43    0       43     1     0     1     1     0   inf    1
bufpl        124       15    0       15     1     0     1     1     0   inf    1
rtentpl      128        2    0        0     1     0     1     1     0   inf    0
ipqepl        40        0    0        0     0     0     0     0     0   inf    0
ipflowpl      72        0    0        0     0     0     0     0     0   inf    0
inpcbpl       96        2    0        2     1     0     1     1     0   inf    1
tcpcbpl      176        0    0        0     0     0     0     0     0   inf    0
synpl        156        0    0        0     0     0     0     0     0   inf    0
sigapl       840    91570    0    91546     9     0     9     9     0   inf    3
swp buf      152        0    0        0     0     0     0     0     0   inf    0
swp vnx       20        0    0        0     0     0     0     0     0   inf    0
swp vnd      128        0    0        0     0     0     0     0     0   inf    0
ext2fsinopl  216       43    0       43     1     0     1     1     0   inf    1

In use 4773K, total allocated 5104K; utilization 93.5%