What is the meaning of each process that occupies CPU resources on S series switches

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On S series switches (except the S1700), run the display cpu-usage command to view the CPU usage of each process. For meanings of common processes, see the following details:
- For the S12700, see "High CPU Usage" in S12700 Troubleshooting - Preliminary.
- For the S7700 and S9700, see "High CPU Usage" in S7700&S9700 Troubleshooting - Preliminary.
- For the S1720, S2700, S3700, S5700, and S6700, see "High CPU Usage" in S1720&S2700&S3700&S5700&S6700 Troubleshooting - Preliminary.
- For the S9300, see "High CPU Usage" in S9300 Troubleshooting - Preliminary.
- For the S600-E, see "High CPU Usage" in S600-E Troubleshooting - Preliminary.

Other related questions:
Meaning of VRPI process in CPU usage on S series switches
On S series switches, the VRPI process loads configurations. When a switch starts, you need to load the configuration, which causes high CPU usage of this process. After the configuration is loaded, the CPU usage is restored to normal state.

How to determine whether CPU usages of the system and processes are high for S series switches
For S series switches (except the S1700), the system CPU usage is within a normal range when the following conditions are met: - The CPU usage does not exceed 80% when the system runs for a long period. - The CPU usage does not exceed 95% in a short period and does not keep increasing. - No high CPU usage alarm is generated. In the following situations, the system may generate an alarm when CPU usage becomes high instantly and then clear this alarm rapidly: Cards just start. Information about all optical modules is queried at a time. Traffic volume increases instantly. This situation is a normal situation and does not affect the device operation. CPU usage of a CPU task process may become low or high, depending on the service volume and processing time. CPU usage is within a normal range as long as the system CPU usage does not exceed 80% and no high CPU usage alarm is generated. For possible causes and common troubleshooting procedures for high CPU usage, see the following: - For the S12700, see "High CPU Usage > Common Information" in S12700 Troubleshooting - Preliminary. - For the S7700 and S9700, see "High CPU Usage > Common Information" in S7700&S9700 Troubleshooting - Preliminary. - For the S1720, S2700, S3700, S5700, and S6700, see "High CPU Usage > Common Information" in S1720&S2700&S3700&S5700&S6700 Troubleshooting - Preliminary. - For the S9300, see "High CPU Usage > Common Information" in S9300 Troubleshooting - Preliminary. - For the S600-E, see "High CPU Usage > Common Information" in S600-E Troubleshooting - Preliminary.

Storage resources occupied by the system
There is a control system on each storage device that occupies part of its storage resources. This capacity varies among manufactures, from tens of GB to 100 GB.

What are the OIDs of CPU and memory usage MIBs on S series switch
On S series switches (except S1700), you can view CPU usage and memory usage through MIB OIDs: - hwEntityCpuUsage 1.3.6.1.4.1.2011.5.25.31.1.1.1.1.5, used to query CPU usage - hwEntityCpuUsageThreshold 1.3.6.1.4.1.2011.5.25.31.1.1.1.1.6, used to query CPU usage alarm threshold - hwEntityMemUsage 1.3.6.1.4.1.2011.5.25.31.1.1.1.1.7, used to query memory usage - hwEntityMemUsageThreshold 1.3.6.1.4.1.2011.5.25.31.1.1.1.1.8, used to query memory usage alarm threshold

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