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JsonSerializer deserialize from bytes where possible

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This is faster and uses way less memory
```
BenchmarkDotNet=v0.12.1, OS=fedora 32
Intel Core i7-6700HQ CPU 2.60GHz (Skylake), 1 CPU, 8 logical and 4 physical cores
.NET Core SDK=5.0.100
  [Host]     : .NET Core 5.0.0 (CoreCLR 5.0.20.51904, CoreFX 5.0.20.51904), X64 RyuJIT
  DefaultJob : .NET Core 5.0.0 (CoreCLR 5.0.20.51904, CoreFX 5.0.20.51904), X64 RyuJIT

| Method |     Mean |   Error |  StdDev |   Gen 0 | Gen 1 | Gen 2 | Allocated |
|------- |---------:|--------:|--------:|--------:|------:|------:|----------:|
|  Bytes | 158.4 us | 2.56 us | 2.14 us | 16.8457 |     - |     - |  52.08 KB |
| String | 172.8 us | 0.78 us | 0.70 us | 41.5039 |     - |     - | 127.82 KB |
| Custom | 155.5 us | 2.95 us | 2.76 us | 10.0098 |     - |     - |  31.27 KB |
```
This commit is contained in:
Bond_009
2021-01-12 15:28:02 +01:00
parent aaf889f683
commit 1ea2b200c0
5 changed files with 21 additions and 23 deletions
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2
Jellyfin.Server/Migrations/Routines/MigrateDisplayPreferencesDb.cs
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@@ -90,7 +90,7 @@ namespace Jellyfin.Server.Migrations.Routines
var results = connection.Query("SELECT * FROM userdisplaypreferences");
foreach (var result in results)
{
var dto = JsonSerializer.Deserialize<DisplayPreferencesDto>(result[3].ToString(), _jsonOptions);
var dto = JsonSerializer.Deserialize<DisplayPreferencesDto>(result[3].ToBlob(), _jsonOptions);
if (dto == null)
{
continue;