On Thu, 2008-01-10 at 14:49 -0500, aragonx@xxxxxxxxxx wrote: > I have a server that has 32G of physical memory and 10G of swap space. > Routinely during the day, always around the same time, it will gradually > go to ~80% swap space usage. > > Using Hotsanic, I can see that this percentage of swap space usage has > been gradually increasing over the months. About a year ago, it was at > ~50% so now I'm becoming alarmed. > > The simple solution (which I will be doing in any case) is to add more > swap space. This does fix the memory issue but I fear there are some > performance implications that I have yet to hear about from my users. > > So, I wrote a program that I thought would gather the amount of memory > used by my key applications (being Oracle and Java) and display it for me. > The idea was flawed because of shared memory. I have yet to devise a way > around this issue and that is where I could use some help. > > Here is the program for informational purposes: > > TOTAL=0 > > if [ $1 = "" ] > then > echo "You must enter the program you wish to find out the memory usage > for." > fi > > ps -ef|grep $1|grep -v grep|tr -s " "|cut -d " " -f2 > > /tmp/will_memory_usage.txt > > exec 3< /tmp/will_memory_usage.txt > until [ $done ] > do > read <&3 line > if [ $? != 0 ]; then > done=1 > continue > fi > PROCVERT=`cat /proc/$line/status|grep VmSize|tr -s " "|cut -d " " -f2` > let TOTALVERT=TOTALVERT+PROCVERT > > PROCREAL=`cat /proc/$line/status|grep VmRSS|tr -s " "|cut -d " " -f2` > let TOTALREAL=TOTALREAL+PROCREAL > done > > echo "$1 virtual memory usage is $TOTALVERT." > echo "$1 real memory usage is $TOTALREAL." > let TOTAL=TOTALREAL+TOTALVERT > echo " " > echo "Total $1 memory usage is $TOTAL." > > rm /tmp/will_memory_usage.txt Change: > ps -ef|grep $1|grep -v grep|tr -s " "|cut -d " " -f2 > > /tmp/will_memory_usage.txt to: ps -ef|grep $1|grep =v grep|tr =s " "|cut -d " " -f2 >> /tmp/will_memory_usage.txt The second > will cause the line to be appended to the file rather than write a single line file. Regards, Les H
