We seem to be having swap performance problems on our V5.1 systems.
When I built these systems, at system setup time, I chose the b
partition of the disk as the primary swap partition(swap1) and said
"no" to the question of if I have secondary swap. After the system was
built and configured and now I knew the device special filename of my
swap devices, I edited the /etc/sysconfigtab and appended them at the
end of the variable "swapdevice". So a quick "swapon -a" and a "swapon
-s" show the following output:
swapon -s
Swap partition /dev/disk/dsk14b (default swap):
Allocated space: 64960 pages (507MB)
In-use space: 64960 pages (100%)
Free space: 0 pages ( 0%)
Swap partition /dev/disk/dsk16c:
Allocated space: 2222274 pages (16.95GB)
In-use space: 141163 pages ( 6%)
Free space: 2081111 pages ( 93%)
Total swap allocation:
Allocated space: 2287234 pages (17.45GB)
Reserved space: 1087344 pages ( 47%)
In-use space: 206123 pages ( 9%)
Available space: 1199890 pages ( 52%)
The system seems to be doing all the I/O to the default swap but
hardly pushes the additional swap space. We are slowing the system
down because of this. Has anyone seen this problem before? Also swap
has been set to eager mode. Any suggestions or information will be
greatly appreciated.
Tks & Rgds,
Alay Shah
Allegiance Healthcare Corporation
1400 Waukegan Rd.
McGaw Park, IL 60085
Ph - 847-578-2584
Fax - 847-578-5586
Email - unixadmin_at_allegiance.net
shahal_at_allegiance.net
Received on Fri May 04 2001 - 16:42:47 NZST