122064 Official

In a detailed troubleshooting series for MySQL DBAs , the value is captured during a pt-stalk data collection event. It appears in the free column of the vmstat (virtual memory statistics) output, indicating that the server had approximately 122 MB of physical memory immediately available for allocation. Understanding the Log Context

When a tool like pt-stalk or pt-sift captures this value, it isn't just a random number; it's a diagnostic snapshot used to identify "blockers" or resource contention. 122064

: In the specific trace where this number appears, it is analyzed alongside diskstats (disk I/O) and innodb transaction logs to see if memory pressure is causing threads to wait. Broader Context: Why Numbers Like This Matter In a detailed troubleshooting series for MySQL DBAs

: Often, servers appear healthy because CPU usage is low, but metrics like "free memory" and "wait time" (the wa column in logs) tell the real story of a system struggling to keep up with I/O. Summary of Technical Attributes Data Source vmstat / pt-sift Standard Linux performance reporting tools. Unit Kilobytes (KB) Represents ~119.2 MiB of memory. Primary Use Troubleshooting : In the specific trace where this number

Used to identify memory exhaustion during database lock-ups.

The number frequently appears in technical performance logs, specifically in vmstat output for Linux systems, representing free memory (typically in kilobytes) at a specific point in time.

To provide a "deep" look, this post explores the technical context of this value within system monitoring, specifically as it relates to database performance and server health. The Significance of 122064 in System Monitoring