AIX Version 4.3 Differences Guide

61 mbufs in use:
32 mbuf cluster pages in use
143 Kbytes allocated to mbufs
0 requests for mbufs denied
0 calls to protocol drain routines
0 sockets not created because sockthresh was reached
Kernel malloc statistics:
******* CPU 0 *******
By size inuse calls failed free hiwat freed
32 201 749 0 55 640 0
64 98 325 0 30 320 0
128 61 257 0 35 160 0
256 135 7324 0 25 384 0
512 110 937 0 2 40 0
1024 35 276 0 5 100 0
2048 0 482 0 6 100 0
4096 34 68 0 2 120 0
16384 1 1 0 18 24 7
32768 1 1 0 0 511 0
By type inuse calls failed memuse memmax mapb
mbuf 61 6952 0 15616 21760 0
mcluster 32 1123 0 131072 141312 0
socket 212 1034 0 76480 77536 0
pcb 77 457 0 14144 14400 0
routetbl 19 21 0 3008 3648 0
fragtbl 0 132 0 0 32 0
ifaddr 6 6 0 1472 1472 0
mblk 23 196 0 4992 5504 0
mblkdata 2 125 0 512 2816 0
strhead 11 19 0 3232 3680 0
strqueue 18 38 0 9216 10752 0
strmodsw 22 22 0 1408 1408 0
strosr 0 17 0 0 256 0
strsyncq 26 88 0 2752 3200 0
streams 138 153 0 15520 16096 0
file 1 1 0 128 128 0
kernel table 14 14 0 50016 50016 0
locking 3 3 0 384 384 0
temp 9 15 0 5568 10112 0
mcast opts 0 2 0 0 128 0
mcast addrs 2 2 0 128 128 0
Streams mblk statistic failures:
0 high priority mblk failures
0 medium priority mblk failures
0 low priority mblk failures
#
When extendednetstats is set to a value of 0, the by-type information is not
displayed.
2.12.2 Expanded Kernel Heap
AIX version 4.3.2 has added a dedicated memory segment for the kernel heap.
The kernel heap is a general memory allocation area and is used to store the
dynamic data structures created and used by the kernel, kernel extensions, and
device drivers.
This enhancement has increased the maximum size of the heap by an additional
256 MB. The kernel heap was previously located in the upper part of segment 0
that was not used for kernel text pages. The maximum size of the heap depended
on the size of the kernel image that was running. The original location is now
used as an overflow buffer and is only used if the dedicated 256 MB kernel heap
segment becomes exhausted.
AIX Kernel Enhancements 23