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improve performance of array list
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@architagr
architagr committed Nov 17, 2024
1 parent 815c6dc commit 404ab76
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Showing 10 changed files with 459 additions and 136 deletions.
90 changes: 83 additions & 7 deletions docs/arraylist_README.md
View file
Original file line number Diff line number Diff line change
Expand Up @@ -31,7 +31,7 @@ func (usr *user) Equal(val interface{}) bool {
}

func main() {
list := InitArrayList[*user]()
userList := InitArrayList[*user]()
users := []*user{
&user{
id: 1,
Expand All @@ -46,35 +46,35 @@ func main() {
if err != nil{
panic(fmt.Errorf("Error in adding at 0th index: %s", err.Error()))
}
data, err := list.Get(0)
data, err := userList.Get(0)
if err != nil{
panic(fmt.Errorf("Error in getting value at a index: %s", err.Error()))
}
err := list.Set(0, &user{
err := userList.Set(0, &user{
id: 3,
name: "test user 3",
})
if err != nil {
panic(fmt.Errorf("Error in setting value at a index: %s", err.Error()))
}
index, err := list.Remove(users[1])
index, err := userList.Remove(users[1])
if err != nil {
panic(fmt.Errorf("error when removing a node: %s", err.Error()))
}

data, err := list.RemoveAtIndex(1)
data, err := userList.RemoveAtIndex(1)
if err != nil {
panic(fmt.Errorf("error when removing a node at a index: %s", err.Error()))
}

index := list.Find(&user{
index := userList.Find(&user{
id: 2,
name: "test name 2",
})
if index == -1 {
panic(fmt.Errorf("error when finding value: %s", err.Error()))
}
response := list.Filter(func(val *user) bool {
response := userList.Filter(func(val *user) bool {
return val.id == 1
})
}
Expand Down Expand Up @@ -129,3 +129,79 @@ This function helps to finding all elements for which the returns true for f, an

This function helps to remove all elements for which the returns true for f, and also returns all removed elements.


## Benchmarks

This benchmarking was done against [emirpasic's GODS package](https://github.com/emirpasic/gods)

**System configuration used while doing these benchmark**<br />
**goos:** darwin<br />
**goarch:** arm64<br />
**pkg:** github.com/architagr/golang_collections/test/benchmark<br />
**cpu:** Apple M1 Pro<br />

<table>
<thead>
<tr>
<td>Function name</td>
<td>Package name</td>
<td># operation</td>
<td>Time taken per operation</td>
<td></td>
<td></td>
</tr>
</thead>
<tbody>
<tr >

</tr>
<tr>
<td rowspan=2>Add</td>
<td>architagr/golang_collections</td>
<td>74,762,736</td>
<td>21.34 ns/op</td>
<td>22 B/op</td>
<td>0 allocs/op</td>
</tr>
<tr>
<td>emirpasic/gods</td>
<td>43,898,088</td>
<td>26.29 ns/op</td>
<td>48 B/op</td>
<td>0 allocs/op</td>
</tr>
<tr>
<td rowspan=2>AddAtIndex</td>
<td>architagr/golang_collections</td>
<td>363,227,274</td>
<td>3.300</td>
<td>0 B/op</td>
<td>0 allocs/op</td>
</tr>
<tr>
<td>emirpasic/gods</td>
<td>812,377</td>
<td>262970 ns/op</td>
<td>41 B/op</td>
<td>0 allocs/op</td>
</tr>

<tr>
<td rowspan=2>Find/IndexOf</td>
<td>architagr/golang_collections</td>
<td>99,529,309</td>
<td>11.59</td>
<td>0 B/op</td>
<td>0 allocs/op</td>
</tr>
<tr>
<td>emirpasic/gods <br/>
<br/>
issue found when we use pointer data as elements: https://github.com/emirpasic/gods/issues/269</td>
<td>415,523,194</td>
<td>2.888 ns/op</td>
<td>0 B/op</td>
<td>0 allocs/op</td>
</tr>
</tbody>
</table>
50 changes: 40 additions & 10 deletions docs/queue_README.md
View file
Original file line number Diff line number Diff line change
Expand Up @@ -69,15 +69,45 @@ This function returns ture if the queue is empty, i.e. count is 0, and return fa

## Benchmarks

This benchmarking was done against [emirpasic's GODS package](https://github.com/emirpasic/gods)
This benchmarking was done against [emirpasic's GODS package (v1.18.1)](https://github.com/emirpasic/gods)

**System configuration used while doing these benchmark**<br />
**goos:** linux<br />
**goarch:** amd64<br />
**pkg:** github.com/architagr/golang_collections/queue<br />
**cpu:** Intel(R) Core(TM) i5-9300H CPU @ 2.40GHz<br />

| Benchmark name | (1) | (2) | (3) | (4) |
| ------------------------------------ | -------------:| ---------------:| -------------:| ---------------:|
| BenchmarkGolang_collections_llQueue | **100000000** | **158.7 ns/op** | **16 B/op** | **1 allocs/op** |
| BenchmarkEmirpasicGods_llQueue | 100000000 | 172.0 ns/op | 31 B/op | 1 allocs/op |
**goos:** darwin<br />
**goarch:** arm64<br />
**pkg:** github.com/architagr/golang_collections/test/benchmark<br />
**cpu:** Apple M1 Pro<br />


<table>
<thead>
<tr>
<td>Function name</td>
<td>Package name</td>
<td># operation</td>
<td>Time taken per operation</td>
<td></td>
<td></td>
</tr>
</thead>
<tbody>
<tr >

</tr>
<tr>
<td rowspan=2>Enqueue</td>
<td>architagr/golang_collections</td>
<td>30,853,053</td>
<td>43.30 ns/op</td>
<td>16 B/op</td>
<td>1 allocs/op</td>
</tr>
<tr>
<td>emirpasic/gods</td>
<td>19,681,999</td>
<td>64.10 ns/op</td>
<td>31 B/op</td>
<td>1 allocs/op</td>
</tr>

</tbody>
</table>
50 changes: 40 additions & 10 deletions docs/stack_README.md
View file
Original file line number Diff line number Diff line change
Expand Up @@ -69,15 +69,45 @@ This function returns ture if the stack is empty, i.e. count is 0, and return fa

## Benchmarks

This benchmarking was done against [emirpasic's GODS package](https://github.com/emirpasic/gods)
This benchmarking was done against [emirpasic's GODS package (v1.18.1)](https://github.com/emirpasic/gods)

**System configuration used while doing these benchmark**<br />
**goos:** linux<br />
**goarch:** amd64<br />
**pkg:** github.com/architagr/golang_collections/stack<br />
**cpu:** Intel(R) Core(TM) i5-9300H CPU @ 2.40GHz<br />

| Benchmark name | (1) | (2) | (3) | (4) |
| ------------------------------------ | -------------:| ---------------:| -------------:| ---------------:|
| BenchmarkGolang_collections_llStack | **100000000** | **109.0 ns/op** | **16 B/op** | **1 allocs/op** |
| BenchmarkEmirpasicGods_llStack | 100000000 | 143.0 ns/op | 31 B/op | 1 allocs/op |
**goos:** darwin<br />
**goarch:** arm64<br />
**pkg:** github.com/architagr/golang_collections/test/benchmark<br />
**cpu:** Apple M1 Pro<br />


<table>
<thead>
<tr>
<td>Function name</td>
<td>Package name</td>
<td># operation</td>
<td>Time taken per operation</td>
<td></td>
<td></td>
</tr>
</thead>
<tbody>
<tr >

</tr>
<tr>
<td rowspan=2>Push</td>
<td>architagr/golang_collections</td>
<td>23,863,994</td>
<td>46.03 ns/op</td>
<td>16 B/op</td>
<td>1 allocs/op</td>
</tr>
<tr>
<td>emirpasic/gods</td>
<td>20,692,017</td>
<td>61.07 ns/op</td>
<td>31 B/op</td>
<td>1 allocs/op</td>
</tr>

</tbody>
</table>
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