Difference between revisions of "Ns cache stats"
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| Line 11: | Line 11: | ||
: The data elements are: | : The data elements are: | ||
| − | :* entries is the total number of entries currently in the cache (including expired and in-progress ones) | + | :* '''entries''' is the total number of entries currently in the cache (including expired and in-progress ones) |
| − | :* flushed is the total number of successful flushes (i.e. when the key was found) | + | :* '''flushed''' is the total number of successful flushes (i.e. when the key was found) |
| − | :* hits is the total number of times a key was found to exist whenever the key was accessed whether it was being read or set | + | :* '''hits''' is the total number of times a key was found to exist whenever the key was accessed whether it was being read or set |
| − | :* misses is the total number of times a key was not found whenever it was accessed whether it was being read or set | + | :* '''misses''' is the total number of times a key was not found whenever it was accessed whether it was being read or set |
| − | :* hitrate is the percent value of hits to hits+misses | + | :* '''hitrate''' is the percent value of hits to hits+misses |
: Note that because of how it is implemented, a single [[ns_cache]] eval operation when a key does not exist will result in both a miss and a hit. | : Note that because of how it is implemented, a single [[ns_cache]] eval operation when a key does not exist will result in both a miss and a hit. | ||
Latest revision as of 02:20, 27 October 2009
NAME
- ns_cache_stats − Returns statistics (since creation) for a cache
SYNOPSIS
- ns_cache_stats cachename ?arrayName?
DESCRIPTION
- If arrayName is ommitted, returns a string of the following format:
- entries: %d flushed: %d hits: %d misses: %d hitrate: %d
- If arrayName is provided, this command sets the above keys in the specified array and returns nothing.
- The data elements are:
- entries is the total number of entries currently in the cache (including expired and in-progress ones)
- flushed is the total number of successful flushes (i.e. when the key was found)
- hits is the total number of times a key was found to exist whenever the key was accessed whether it was being read or set
- misses is the total number of times a key was not found whenever it was accessed whether it was being read or set
- hitrate is the percent value of hits to hits+misses
- Note that because of how it is implemented, a single ns_cache eval operation when a key does not exist will result in both a miss and a hit.
SEE ALSO
