You can use tools like 'htop' or 'top' to monitor real-time RAM usage on your VPS. Set up a log system to capture specific usage metrics over time.
Implement a tool like 'free' or 'vmstat' to track memory statistics. This will help you identify when RAM usage spikes and correlate with service outages.
Consider using 'sar' from the sysstat package for historical data on different resource usages, including RAM. This can help pinpoint trends before crashes occur.
To analyze memory consumption, you can also use 'smem' to report memory usage with more detail or 'pmap' to check memory usage of a specific process.
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