PostgreSQL 12 High Availability Cookbook - Third Edition

How to do it...

Follow these steps to capture an interesting memory status from /proc/meminfo:

1. Obtain basic memory states with the following command:

grep -A3 MemTotal /proc/meminfo

2. Execute this command to extract dirty memory buffers and pending writes:

grep -A1 Dirty /proc/meminfo

3. View the state of various memory caches with the following command:

grep -A1 Active /proc/meminfo

4. Show swap usage with the following command:

grep Swap /proc/meminfo