The cache_bench is come from the rocksdb. And it's a good example for us to take a deep knowladge of the cache algorithm's implementation with high concurrent in lookup/insert/erase.
- lru cache
- clock cache
- leveldb lru cache
The make file's lib is for mac, if you want to build the cache_bench ,it't better to change the dylib to .so.
make cache_benchIt's a tool to test the different cache with their options.make cache_libCompile a cache-lib, and user could use thelruorclockcache easily. Just like the example of the example directroy.
Mac pro : Darwin Kernel Version 20.3.0
./cache_bench
$ ./cache_bench -threads=32 -lookup_percent=100 -erase_percent=0 -insert_percent=0 -num_shard_bits=8
Number of threads : 32
Ops per thread : 1200000
Cache size : 8388608
Num shard bits : 8
Max key : 1073741824
Populate cache : 0
Insert percentage : 0%
Lookup percentage : 100%
Erase percentage : 0%
Test count : 1
----------------------------
1 Test: complete in 0.767 s; QPS = 50052072
$ ./cache_bench -threads=32 -lookup_percent=100 -erase_percent=0 -insert_percent=0 -num_shard_bits=8 -use_clock_cache=true
Number of threads : 32
Ops per thread : 1200000
Cache size : 8388608
Num shard bits : 8
Max key : 1073741824
Populate cache : 0
Insert percentage : 0%
Lookup percentage : 100%
Erase percentage : 0%
Test count : 1
----------------------------
1 Test: complete in 1.216 s; QPS = 31567213