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linux_wiki:high_system_load [2016/03/14 11:27] billdozor [Calculate Overall CPU Load] |
linux_wiki:high_system_load [2016/03/14 11:32] billdozor |
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| * 2 CPU/Cores = 100% is load 2.00 | * 2 CPU/Cores = 100% is load 2.00 | ||
| * 4 CPU/Cores = 100% is load 4.00 | * 4 CPU/Cores = 100% is load 4.00 | ||
| - | * Example: From the analogy above, each CPU Core can handle | + | * Example: From the analogy above, each CPU Core can actively process |
| ===== Calculate Overall CPU Load ===== | ===== Calculate Overall CPU Load ===== | ||
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| ---- | ---- | ||
| - | ==== High CPU ==== | + | ===== High CPU ===== |
| Clues that you should investigate high CPU usage: | Clues that you should investigate high CPU usage: | ||
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| ---- | ---- | ||
| - | ==== High Memory Use ==== | + | ===== High Memory Use ===== |
| Notes on Linux memory management | Notes on Linux memory management | ||
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| ---- | ---- | ||
| - | ==== Disk I/O ==== | + | ===== Disk I/O ===== |
| * I/O wait (wa) is the percentage of time a CPU is waiting on disk. | * I/O wait (wa) is the percentage of time a CPU is waiting on disk. | ||