SUMMARY: Server paging heavily - suggestions to fix?

From: Alan Bradley - CPX WC <AlanB_at_ComparexAfrica.co.za>
Date: Wed Jan 22 2003 - 01:57:38 EST
Hi All,

Apologies for the late summary.

Thanks to all who responded.

Basically even though the paging is high all other indicators are that the
server is running well.  I have made some changes to the autoup and maxpgio
entries in /etc/system.
I am now waiting to see the effect.

Regards

-----Original Message-----
From: Alan Bradley - CPX WC [mailto:AlanB@comparexafrica.co.za]
Sent: Wednesday, January 08, 2003 2:58 PM
To: 'sunmanagers@sunmanagers.org'
Subject: Server paging heavily - suggestions to fix?


Hi All,

I have a server that is showing a lot of paging activity, but no swapping
activity.
The server is running multiple Oracle 8 databases.

The CPU usage never seems to get over +/- 70%.

The "other" indicators, e.g. I/O ,etc. seem to be high but okay.
I would appreciate any suggestions on what to look for or possible ways to
improve the paging problem.

Below is a sample output of running vmstat -p on the server:

/etc# vmstat -p

     memory           page          executable      anonymous
filesystem
   swap  free  re  mf  fr  de  sr  epi  epo  epf  api  apo  apf  fpi  fpo
fpf

 9393784 1367696 1855 5458 0 0  0    0    0    0    0    0    0 8292    0
0
 9393528 1373968 1918 5297 0 0  0    0    0    0    0    0    0 10736   0
0
 9393512 1383744 1909 5449 0 0  0    0    0    0    0    0    0 10940   0
0
 9393648 1396600 1990 5185 0 0  0    0    0    0    0    0    0 11932   0
0
 9393848 1408800 2118 5232 0 0  0    0    0    0    0    0    0 12920   0
0
 9393744 1417152 2229 5336 0 0  0    0    0    0    0    0    0 13468   0
0
 9390224 1421416 1742 5467 4 0  0    0    0    0    0    0    0 9648    4
4


Below is a sample output of sar -p and also sar -w on the server:

/etc# sar -p

SunOS rhino 5.8 sun4u    01/08/03

00:00:00  atch/s    pgin/s ppgin/s  pflt/s   vflt/s      slock/s
12:00:00  665.67   12.27   89.99 2810.04 6024.73    0.00
12:20:00  646.26   15.81   79.31 2751.65 5909.94    0.00
12:40:00  679.39    3.85   72.49 2780.76 5966.14    0.00
13:00:00  603.40    0.66    5.54 2833.28 6063.48    0.00
13:20:00 1686.37  217.06  629.50 2731.26 5859.58    0.00
13:40:00  671.53    2.59   62.89 2846.79 6096.48    0.00
14:00:00  602.37    1.20    2.88 2842.18 6081.61    0.00
14:20:00  640.91    5.10   35.43 2846.30 6101.56    0.00
14:40:00  656.55    5.52   79.51 2716.22 5830.64    0.00

/etc# sar -w

SunOS rhino 5.8  sun4u    01/08/03

00:00:00 swpin/s bswin/s swpot/s bswot/s pswch/s
12:00:00    0.00     0.0    0.00     0.0     970
12:20:00    0.00     0.0    0.00     0.0    1288
12:40:00    0.00     0.0    0.00     0.0    1124
13:00:00    0.00     0.0    0.00     0.0     922
13:20:00    0.00     0.0    0.00     0.0    1267
13:40:00    0.00     0.0    0.00     0.0     839
14:00:00    0.00     0.0    0.00     0.0     831
14:20:00    0.00     0.0    0.00     0.0     886
14:40:00    0.00     0.0    0.00     0.0     863

Regards,
Alan.
_______________________________________________
sunmanagers mailing list
sunmanagers@sunmanagers.org
http://www.sunmanagers.org/mailman/listinfo/sunmanagers
_______________________________________________
sunmanagers mailing list
sunmanagers@sunmanagers.org
http://www.sunmanagers.org/mailman/listinfo/sunmanagers
Received on Wed Jan 22 02:04:33 2003

This archive was generated by hypermail 2.1.8 : Thu Mar 03 2016 - 06:43:02 EST