XCache: A simplest and thread-safe LRU cache, which support key-func, release-func and hit-stat.
Setup
pip install xcache-libKey Features
- LRU cache
- Thread safe
- Support special key function
- Support special release function
- Has detail hit stat
Core Function Descriptor: xcache
@xcache(cache_size, key_func=None, release_func=None, log_keys=False)| Param Value | Description |
|---|---|
| cache_size | size of cache storage |
| key_fun | special key function |
| release_func | special release function |
| log_keys | log keys, for DEBUG
|
Quick Start
from xcache import xcache, show_xcache_hit_stat
@xcache(3, key_func=lambda x,y: x, log_keys=True)
def calc(x, y):
print("calc {}, {}".format(x, y))
return x + y
if __name__ == "__main__":
print(calc(5, 6))
print(calc(5, 6))
print(calc(5, 6))
print(calc(5, 5))
print(calc(4, 6))
print(calc(3, 6))
print(calc(2, 6))
print(calc(1, 6))
print(calc(9, 6))
print(json.dumps(show_xcache_hit_stat(x), indent=4)) # show detail hit statoutputs:
calc 5, 6
11
11
11
calc 5, 5
10
calc 4, 6
10
calc 3, 6
9
calc 2, 6
8
calc 1, 6
7
calc 9, 6
15
{
"hit_rate": 22.22222222222222,
"dup_calc_rate": 0.6666666666666666,
"hit": [
2,
7
],
"keys_num": 1,
"detail": {
"key_detail": {
"1": 6,
"3": 1
},
"hit_detail": {
"2": 1
}
}
}
