How to record memory usage?

You can use the following command in bash like so:

for i in `seq 0 60`; do
  echo `cat /proc/meminfo | grep Active: | sed 's/Active: //g'` >> usage.txt
  sleep 1m
done

This command will record the current memory use to a file named 'usage.txt' every minute for the duration of 1 hour.

If you wish, you can change the usage.txt part of the command to save under a different name. You can also change the sleep 1m command to alter the time between each entry and the '60' in the seq section at the top to change the number of entries to be recorded.

When you have finished making your entries, you will have a text file of entries that can be imported into a spreadsheet for easy comparison.

EDIT: If you wish to also record the total memory with each entry, you can use the following commands:

for i in `seq 0 60`; do
  echo `cat /proc/meminfo | grep Active: | sed 's/Active: //g'`/`cat /proc/meminfo | grep MemTotal: | sed 's/MemTotal: //g'` >> usage.txt
  sleep 1m
done

These commands will instead record entries in the form of <active>/<total>

How to record memory usage?

Related

Recent Posts