https://github.com/linnykoleh/cachesinvestigation
Caches investigation
https://github.com/linnykoleh/cachesinvestigation
cache cqengine ehcache guava-cache
Last synced: 9 months ago
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Caches investigation
- Host: GitHub
- URL: https://github.com/linnykoleh/cachesinvestigation
- Owner: linnykoleh
- Created: 2017-05-29T13:27:27.000Z (about 9 years ago)
- Default Branch: master
- Last Pushed: 2018-03-02T10:34:27.000Z (over 8 years ago)
- Last Synced: 2025-03-02T17:11:19.598Z (over 1 year ago)
- Topics: cache, cqengine, ehcache, guava-cache
- Language: Java
- Homepage:
- Size: 85.9 KB
- Stars: 1
- Watchers: 2
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
### Guava cache vs EhCache
---
*_Linux_*
*_Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz(8 CPUs)_*
*_32 Gb RAM_*
#### 1. Time execution
| Operation | EhCache | Guava cache |
| ------------- |:-------------:| --------------:|
| put 100 | 194.16 μs | 352.42 μs |
| put 10_000 | 4.505 ms | 2.469 ms |
| put 1_000_000 | 579.31 ms | 352.65 ms |
| | | |
| get 100 | 99.85 μs | 264.43 μs |
| get 10_000 | 4.07 ms | 2.89 ms |
| get 1_000_000 | 408.88 ms | 296.34 ms |
`Guava cache loses only when small number of elements
but when number of elements more then
time execution of Guava cache implementation is better almost half.`
> **How I tested**
> I run every test 20 times and get last 10 values. First 10 values I skipped because I think
> this is not correct values because computer is dispersing
**Test example**
```java
@Test
public void testGuavaCachePut1_000_000(){
measure(MEASURE_TIMES, () -> {
final int size = 1_000_000;
final GuavaCache guavaCache = new GuavaCache(size);
final Stream domainObjects = generatePayload(size);
calculateTimeExecuting(domainObjects, guavaCache::push);
Assert.assertTrue("Error GuavaCache size different:", guavaCache.size() == size);
guavaCache.cleanUp();
});
}
```
```java
public void measure(int times, Runnable testSuite){
for(int i = 0; i < times; i++){
testSuite.run();
}
}
```
#### 2. Thread safe
Both are `thread-safe` caches
#### 3. Docs
`Guava cache` - https://github.com/google/guava/wiki/CachesExplained
`EhCache` - http://www.ehcache.org/documentation/
`Documentation for EhCache obviously better than in Guava cache.
Google provide us only wiki on github with examples
but EhCache provides us full documentation with explanation and a lot of examples`
#### 4. Community
https://github.com/google/guava
https://github.com/ehcache/ehcache3
`Both guava cache and ehcache are now being developed
it can be seen by stars and numbers who watched projects
of course guava has better statistic because there are a lot of direction except the cache`
#### 5. Features
| Feature | EhCache | Guava cache |
| -----------------------|:-------------:| --------------:|
| Generics | no | yes |
| Transformation asMap | no | yes |
| Cache Manager | yes | no |
| CacheLoader | yes | yes |
| Extensions | yes | yes |
| Eviction by Size | yes | yes |
| Eviction by Time | yes | yes |
| Statistics | yes | yes |
[***All tests are here***](src/test/java/com/investigation/caches/)
---
#### Benchmark result
##### Result "com.investigation.guava.benchmark.GuavaCacheBenchmark.push":`
- 290.596 ±(99.9%) 128.686 ns/op [Average]
- (min, avg, max) = (157.674, 290.596, 388.434), stdev = 85.118
- CI (99.9%): [161.911, 419.282] (assumes normal distribution)
##### Result "com.investigation.guava.benchmark.GuavaCacheBenchmark.getPut":
- 388.225 ±(99.9%) 334.280 ns/op [Average]
- (min, avg, max) = (188.616, 388.225, 790.026), stdev = 221.106
- CI (99.9%): [53.945, 722.505] (assumes normal distribution)
##### Result "com.investigation.guava.benchmark.GuavaCacheBenchmark.get":
- 101.170 ±(99.9%) 312.169 ns/op [Average]
- (min, avg, max) = (17.823, 101.170, 684.813), stdev = 206.480
- CI (99.9%): [≈ 0, 413.339] (assumes normal distribution)
##### Result "com.investigation.ehcache.benchmark.EhCacheBenchmark.push":
- 672.224 ±(99.9%) 735.043 ns/op [Average]
- (min, avg, max) = (357.479, 672.224, 1959.890), stdev = 486.185
- CI (99.9%): [≈ 0, 1407.267] (assumes normal distribution)
##### Result "com.investigation.ehcache.benchmark.EhCacheBenchmark.getPut":
- 878.802 ±(99.9%) 887.920 ns/op [Average]
- (min, avg, max) = (526.381, 878.802, 2347.393), stdev = 587.304
- CI (99.9%): [≈ 0, 1766.722] (assumes normal distribution)
##### Result "com.investigation.ehcache.benchmark.EhCacheBenchmark.get":
- 134.799 ±(99.9%) 90.149 ns/op [Average]
- (min, avg, max) = (59.389, 134.799, 260.582), stdev = 59.628
- CI (99.9%): [44.650, 224.949] (assumes normal distribution)
| Benchmark | Mode | Cnt | Score | Error | Units |
|------------------------------|:------|:----|:--------|:------------|:------|
| EhCacheBenchmark.get | avgt | 10 | 176.414 | ± 129.249 | ns/op |
| EhCacheBenchmark.getAdd | avgt | 10 | 456.254 | ± 456.254 | ns/op |
| EhCacheBenchmark.add | avgt | 10 | 360.040 | ± 360.040 | ns/op |
| | | | | | |
| GuavaCacheBenchmark.get | avgt | 10 | 417.519 | ± 1852.250 | ns/op |
| GuavaCacheBenchmark.getAdd | avgt | 10 | 301.317 | ± 156.990 | ns/op |
| GuavaCacheBenchmark.add | avgt | 10 | 121.100 | ± 52.495 | ns/op |
| | | | | | |
| CoffeineCacheBenchmark.get | avgt | 10 | 68.528 | ± 73.959 | ns/op |
| CoffeineCacheBenchmark.getAdd| avgt | 10 | 101.232 | ± 66.103 | ns/op |
| CoffeineCacheBenchmark.add | avgt | 10 | 139.562 | ± 84.309 | ns/op
| | | | | | |
| CQEngineCacheBenchmark.get | avgt | 10 |2778.847 | ± 10868.407 | ns/op |
| CQEngineCacheBenchmark.getAdd| avgt | 10 |1925.592 | ± 2387.369 | ns/op |
| CQEngineCacheBenchmark.add | avgt | 10 | 552.958 | ± 659.467 | ns/op |
[Виктор Гамов — JCache и распределенные кэши: беспредел!](https://www.youtube.com/watch?v=mU893v4HtF4)
---
> **In order to run benchmarking**
> - mvn clean install -DskipTests
> - java -jar target/benchmarks.jar
[More examples: http://tutorials.jenkov.com/java-performance/jmh.html](http://tutorials.jenkov.com/java-performance/jmh.html)