Processes Using Swap Space In Oracle

Onur ARDAHANLI

1 year ago

In today’s article, we will explain how we can learn the Processes Using Swap Space in Oracle.

Processes using swap space:

[root@mwdb01 ~]# ./swap.sh | egrep -v "Swap used: 0" |sort -n -k 5 > /log_file/swap_sonuc_node1_27012015_1058.txt

1	[root@mwdb01 ~]# ./swap.sh \| egrep -v "Swap used: 0" \|sort -n -k 5 > /log_file/swap_sonuc_node1_27012015_1058.txt

By the way, the content of this script is as follows.

#!/bin/bash
# Get current swap usage for all running processes
# Erik Ljungstrom 27/05/2011
SUM=0
OVERALL=0
for DIR in `find /proc/ -maxdepth 1 -type d | egrep "^/proc/[0-9]"` ; do
        PID=`echo $DIR | cut -d / -f 3`
        PROGNAME=`ps -p $PID -o comm --no-headers`
        for SWAP in `grep Swap $DIR/smaps 2>/dev/null| awk '{ print $2 }'`
        do
                let SUM=$SUM+$SWAP
        done
        echo "PID=$PID - Swap used: $SUM - ($PROGNAME )"
        let OVERALL=$OVERALL+$SUM
        SUM=0
 
done
echo "Overall swap used: $OVERALL"

#!/bin/bash

# Get current swap usage for all running processes

# Erik Ljungstrom 27/05/2011

SUM=0

OVERALL=0

for DIR in `find /proc/ -maxdepth 1 -type d | egrep "^/proc/[0-9]"` ; do

PID=`echo $DIR | cut -d / -f 3`

PROGNAME=`ps -p $PID -o comm --no-headers`

for SWAP in `grep Swap $DIR/smaps 2>/dev/null| awk '{ print $2 }'`

let SUM=$SUM+$SWAP

done

echo "PID=$PID - Swap used: $SUM - ($PROGNAME )"

let OVERALL=$OVERALL+$SUM

SUM=0

done

echo "Overall swap used: $OVERALL"

Read the query result:

[root@mwdb01 ~]# vi /log_file/swap_sonuc_node1_27012015_1058.txt

1	[root@mwdb01 ~]# vi /log_file/swap_sonuc_node1_27012015_1058.txt

We can see which processes use the swap space from the query below.

[root@mwdb01 ~]# ./swap.sh | egrep -v "Swap used: 0" |sort -n -k 5 > /log_file/swap_sonuc.txt

1	[root@mwdb01 ~]# ./swap.sh \| egrep -v "Swap used: 0" \|sort -n -k 5 > /log_file/swap_sonuc.txt

We can also see the usage of the swap space with the following query.

-Top –c –M

-Then press the character “f” and then the character “p”

-Then “Enter”