Method for output processing of trace logs of multi-kernel storage device and multi-kernel environment

Abstract

The invention belongs to the technical field of storage and provides a method for output processing of trace logs in a multi-kernel environment. The method includes the steps that when the trace log of each kernel is generated, trace log data are packaged, and timestamp information is added and used for marking the sequence of trace log records; a lock-free circulation cache structure and a static cache structure are configured for each kernel and used for temporarily storing pointers of the corresponding trace log, and the corresponding trace log and a corresponding timestamp which are generated by the kernel; the timestamp information of the trace logs is acquired according to the pointers of the trace logs and the trace logs of the different static cache structures are ranked and processed according to the timestamp information; when a timer is interrupted, output processing is conducted on the trace logs. The invention further provides a multi-kernel storage device for achieving the method. Thus, cache operation and output operation can be conducted simultaneously, the number of dispatches is reduced, and the resource use rate is increased.

Description

technical field [0001] The invention relates to the field of storage technology, in particular to a multi-core storage device and a tracking log output processing method in a multi-core environment. Background technique [0002] Trace log (trace log) is one of the common user processes in the storage system. In the prior art, a trace log buffer is generally applied for in the storage area, and the trace log is written into the buffer during program execution, and finally a task with the lowest priority is responsible for the output of the trace log. [0003] The above method has the following disadvantages: 1) When multiple cores write trace log records to the trace log record buffer at the same time, they must first acquire the lock, so they need to wait for other Cores to release the lock; 2) When the task with the lowest priority is located When the Core performs trace log record output, it needs to lock the trace log record buffer to avoid inconsistency in trace log rec...

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Problems solved by technology

[0003] The above method has the following disadvantages: 1) When multiple cores write trace log records to the trace log record buffer at the same time, the lock must be acquired first, so it needs to wait for other Cores to release the lock; 2) In the task with the lowest priority When the Core performs trace log output, it needs to lock the trace l

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