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https://github.com/linksplatform/comparisons.sqlitevsdoublets
Comparison of SQLite and LinksPlatform's Doublets (links) on basic embeded database operations with objects (create list, read list, delete list).
https://github.com/linksplatform/comparisons.sqlitevsdoublets
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Comparison of SQLite and LinksPlatform's Doublets (links) on basic embeded database operations with objects (create list, read list, delete list).
- Host: GitHub
- URL: https://github.com/linksplatform/comparisons.sqlitevsdoublets
- Owner: linksplatform
- License: unlicense
- Created: 2019-07-31T12:51:52.000Z (over 5 years ago)
- Default Branch: main
- Last Pushed: 2023-11-01T17:27:48.000Z (about 1 year ago)
- Last Synced: 2024-04-16T00:51:28.750Z (9 months ago)
- Language: C#
- Homepage:
- Size: 174 KB
- Stars: 4
- Watchers: 4
- Forks: 0
- Open Issues: 5
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
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# Comparisons.SQLiteVSDoublets ([русская версия](README.ru.md))
Comparison of SQLite and LinksPlatform's Doublets (links) on basic embeded database operations with objects (create list, read list, delete list).
Based on examples from https://github.com/FahaoTang/dotnetcore-examples and https://github.com/Konard/LinksPlatform
## SQLite
```C#
using System.Linq;
using Comparisons.SQLiteVSDoublets.Model;
namespace Comparisons.SQLiteVSDoublets.SQLite
{
public class SQLiteTestRun : TestRun
{
public SQLiteTestRun(string dbFilename) : base(dbFilename) { }
public override void Prepare()
{
using var dbContext = new SQLiteDbContext(DbFilename);
dbContext.Database.EnsureCreated();
}
public override void CreateList()
{
using var dbContext = new SQLiteDbContext(DbFilename);
dbContext.BlogPosts.AddRange(BlogPosts.List);
dbContext.SaveChanges();
}
public override void ReadList()
{
using var dbContext = new SQLiteDbContext(DbFilename);
foreach (var blogPost in dbContext.BlogPosts)
{
ReadBlogPosts.Add(blogPost);
}
}
public override void DeleteList()
{
using var dbContext = new SQLiteDbContext(DbFilename);
var blogPostsToDelete = dbContext.BlogPosts.ToList();
dbContext.BlogPosts.RemoveRange(blogPostsToDelete);
dbContext.SaveChanges();
}
}
}
```
## Doublets
``` C#
using System.IO;
using Platform.IO;
using Comparisons.SQLiteVSDoublets.Model;
namespace Comparisons.SQLiteVSDoublets.Doublets
{
public class DoubletsTestRun : TestRun
{
public string DbIndexFilename { get; }
public DoubletsTestRun(string dbFilename) : base(dbFilename) => DbIndexFilename = $"{Path.GetFileNameWithoutExtension(dbFilename)}.links.index";
public override void Prepare()
{
using var dbContext = new DoubletsDbContext(DbFilename, DbIndexFilename);
}
public override void CreateList()
{
using var dbContext = new DoubletsDbContext(DbFilename, DbIndexFilename);
foreach (var blogPost in BlogPosts.List)
{
dbContext.SaveBlogPost(blogPost);
}
}
public override void ReadList()
{
using var dbContext = new DoubletsDbContext(DbFilename, DbIndexFilename);
foreach (var blogPost in dbContext.BlogPosts)
{
ReadBlogPosts.Add(blogPost);
}
}
public override void DeleteList()
{
using var dbContext = new DoubletsDbContext(DbFilename, DbIndexFilename);
var blogPostsToDelete = dbContext.BlogPosts;
foreach (var blogPost in blogPostsToDelete)
{
dbContext.Delete((uint)blogPost.Id);
}
}
protected override void DeleteDatabase()
{
File.Delete(DbFilename);
File.Delete(DbIndexFilename);
}
protected override long GetDatabaseSizeInBytes() => FileHelpers.GetSize(DbFilename) + FileHelpers.GetSize(DbIndexFilename);
}
}
```
## [Result](https://www.icloud.com/keynote/0cYVNWkWD5RLU0k-XIBs3qWkA#Sqlite_vs_Doublets)
### Performance
### Disk usage
### RAM usage
### Source data
``` ini
BenchmarkDotNet=v0.12.0, OS=Windows 10.0.18362
Intel Core i7-6700K CPU 4.00GHz (Skylake), 1 CPU, 8 logical and 4 physical cores
.NET Core SDK=3.0.100
[Host] : .NET Core 3.0.0 (CoreCLR 4.700.19.46205, CoreFX 4.700.19.46214), X64 RyuJIT
Job-AYEMIX : .NET Core 3.0.0 (CoreCLR 4.700.19.46205, CoreFX 4.700.19.46214), X64 RyuJIT
InvocationCount=1 IterationCount=1 UnrollFactor=1
WarmupCount=2
```
| Method | N | Mean | Error | Gen 0 | Gen 1 | Gen 2 | Allocated | SizeAfterCreation |
|--------- |------- |------------:|------:|-------------:|------------:|------:|------------:|------------------:|
| **SQLite** | **1000** | **719.1 ms** | **NA** | **5000.0000** | **-** | **-** | **30.67 MB** | **925696** |
| Doublets | 1000 | 145.0 ms | NA | 34000.0000 | 1000.0000 | - | 139.37 MB | 767616 |
| **SQLite** | **10000** | **2,770.3 ms** | **NA** | **64000.0000** | **19000.0000** | **-** | **315.71 MB** | **9056256** |
| Doublets | 10000 | 1,003.8 ms | NA | 304000.0000 | 31000.0000 | - | 1220.55 MB | 6528256 |
| **SQLite** | **100000** | **35,853.8 ms** | **NA** | **680000.0000** | **151000.0000** | **-** | **3234.09 MB** | **90890240** |
| Doublets | 100000 | 13,083.4 ms | NA | 3088000.0000 | 328000.0000 | - | 12356.33 MB | 64192256 |
## Conclusion
In this particular comparison, Doublets are faster and use less memory on disk, but this comes with the cost of additional use of RAM (Sqlite uses it less).