1 files changed, 24 insertions, 13 deletions

diff --git a/indra/llfilesystem/lldiskcache.cpp b/indra/llfilesystem/lldiskcache.cpp
index 022d206821..dd3852fb93 100644
--- a/indra/llfilesystem/lldiskcache.cpp
+++ b/indra/llfilesystem/lldiskcache.cpp
@@ -131,28 +131,44 @@ void LLDiskCache::purge()
 
     LL_INFOS() << "Purging cache to a maximum of " << mMaxSizeBytes << " bytes" << LL_ENDL;
 
+    std::vector<bool> file_removed;
+    if (mEnableCacheDebugInfo)
+    {
+        file_removed.reserve(file_info.size());
+    }
     uintmax_t file_size_total = 0;
     for (file_info_t& entry : file_info)
     {
         file_size_total += entry.second.first;
 
-        std::string action = "";
-        if (file_size_total > mMaxSizeBytes)
+        bool should_remove = file_size_total > mMaxSizeBytes;
+        if (mEnableCacheDebugInfo)
+        {
+            file_removed.push_back(should_remove);
+        }
+        if (should_remove)
         {
-            action = "DELETE:";
             boost::filesystem::remove(entry.second.second, ec);
             if (ec.failed())
             {
                 LL_WARNS() << "Failed to delete cache file " << entry.second.second << ": " << ec.message() << LL_ENDL;
             }
         }
-        else
-        {
-            action = "  KEEP:";
-        }
+    }
 
-        if (mEnableCacheDebugInfo)
+    if (mEnableCacheDebugInfo)
+    {
+        auto end_time = std::chrono::high_resolution_clock::now();
+        auto execute_time = std::chrono::duration_cast<std::chrono::milliseconds>(end_time - start_time).count();
+
+        // Log afterward so it doesn't affect the time measurement
+        // Logging thousands of file results can take hundreds of milliseconds
+        for (size_t i = 0; i < file_info.size(); ++i)
         {
+            const file_info_t& entry = file_info[i];
+            const bool removed = file_removed[i];
+            const std::string action = removed ? "DELETE:" : "KEEP:";
+
             // have to do this because of LL_INFO/LL_END weirdness
             std::ostringstream line;
 
@@ -163,12 +179,7 @@ void LLDiskCache::purge()
             line << " (" << file_size_total << "/" << mMaxSizeBytes << ")";
             LL_INFOS() << line.str() << LL_ENDL;
         }
-    }
 
-    if (mEnableCacheDebugInfo)
-    {
-        auto end_time = std::chrono::high_resolution_clock::now();
-        auto execute_time = std::chrono::duration_cast<std::chrono::milliseconds>(end_time - start_time).count();
         LL_INFOS() << "Total dir size after purge is " << dirFileSize(mCacheDir) << LL_ENDL;
         LL_INFOS() << "Cache purge took " << execute_time << " ms to execute for " << file_info.size() << " files" << LL_ENDL;
     }