From 1213d13b3b8c77ca5837ec64cbad774901acdef6 Mon Sep 17 00:00:00 2001
From: Simon Cropp <simon.cropp@gmail.com>
Date: Sat, 24 Aug 2019 23:11:40 +1000
Subject: [PATCH] compile the regex

---
 src/Serilog.Sinks.File/Sinks/File/PathRoller.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Serilog.Sinks.File/Sinks/File/PathRoller.cs b/src/Serilog.Sinks.File/Sinks/File/PathRoller.cs
index 17c496b..79a6915 100644
--- a/src/Serilog.Sinks.File/Sinks/File/PathRoller.cs
+++ b/src/Serilog.Sinks.File/Sinks/File/PathRoller.cs
@@ -52,7 +52,8 @@ public PathRoller(string path, RollingInterval interval)
                 "(?<" + PeriodMatchGroup + ">\\d{" + _periodFormat.Length + "})" +
                 "(?<" + SequenceNumberMatchGroup + ">_[0-9]{3,}){0,1}" +
                 Regex.Escape(_filenameSuffix) +
-                "$");
+                "$",
+                RegexOptions.Compiled);
 
             DirectorySearchPattern = $"{_filenamePrefix}*{_filenameSuffix}";
         }