show pal dentry_info
Example
Query information about the PAL dentry structure.
developer:/>show pal dentry_info Dentry Cache(addr=ffffffffa9bb9d40,size=240) Info: Dentry switch = 1. Hash Size = 1048576. Hash Mask = 1048575. Task Status = 0. Max Dentry Number = 4000000. Max Eliminate Number = 3600000. Min Eliminate Number = 3200000. Hit Rate = 0. Total Number = 0. Hit Number = 0. Used Number = 0. Invalid File System Number = 0. Memory = 0. Free Lru Number = 0. Reference Count No Zero Number = 0. Leak Number = 0. Name Hash (Min=0,Max=0) ID Hash (Min=0,Max=0)
System Response
The following table describes the parameter meanings.
Parameter |
Meaning |
|---|---|
| Dentry switch | Dentry switch. |
| Hash Size | Length of the dentry hash entry. |
| Hash Mask | Mask of the dentry hash table. |
| Task Status | Status of eviction tasks in the dentry background. |
| Max Dentry Number | Maximum number of dentry nodes. |
| Max Eliminate Number | High LRU eviction watermark. Eviction stats immediately when the high watermark is exceeded. |
| Min Eliminate Number | Low LRU eviction watermark. Eviction stops immediately when the low watermark is exceeded. |
| Hit Rate | Dentry hit ratio. |
| Total Number | Total number of queries. |
| Hit Number | Number of hits. |
| Used Number | Number of used dentries. |
| Invalid File System Number | Number of invalid file systems. |
| Memory | Memory used by dentries. |
| Free Lru Number | Number of released LRU dentries. |
| Reference Count No Zero Number | Number of dentries whose reference count is not 0 during dentry release. |
| Leak Number | Number of leaked dentries. |
| Name Hash | Number of dentries in the name hash table. |
| ID Hash | Number of dentries in the ID hash table. |
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