Update sp_PerfCheck.sql

Author: erikdarlingdata

sp_PerfCheck/sp_PerfCheck.sql

@@ -3400,6 +3400,31 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
                 N'https://erikdarling.com/sp_PerfCheck#tempdb'
             );
         END;
+        
+        /* Check for percentage growth in tempdb */
+        IF @has_percent_growth = 1
+        BEGIN
+            INSERT INTO
+                #results
+            (
+                check_id,
+                priority,
+                category,
+                finding,
+                details,
+                url
+            )
+            VALUES
+            (
+                2006,
+                50, /* High-medium priority */
+                N'TempDB Configuration',
+                N'Percentage Auto-Growth Setting in TempDB',
+                N'TempDB data files are using percentage growth settings. This can lead to increasingly larger growth events as files grow. ' +
+                N'TempDB is recreated on server restart, so using predictable fixed-size growth is recommended for better performance.',
+                N'https://erikdarling.com/sp_PerfCheck#tempdb'
+            );
+        END;
 
         /* Memory configuration checks */
         IF @min_server_memory >= (@max_server_memory * 0.9) /* Within 10% */
@@ -4711,7 +4736,9 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
                 details =
                     ''Database data file is using percentage growth setting ('' +
                     CONVERT(nvarchar(20), mf.growth) +
-                    ''%). This can lead to increasingly larger growth events as the file grows,
+                    ''%). Current file size is '' +
+                    CONVERT(nvarchar(20), CONVERT(decimal(18, 2), mf.size * 8.0 / 1024 / 1024)) +
+                    '' GB. This can lead to increasingly larger growth events as the file grows,
                     potentially causing larger file sizes than intended. Even with instant file initialization enabled,
                     consider using a fixed size instead for more predictable growth.'',
                 url = N''https://erikdarling.com/sp_PerfCheck#DataFileGrowth''
@@ -4845,7 +4872,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
                 object_name = mf.name,
                 details =
                     ''Database file is using a very large fixed growth increment of '' +
-                    CONVERT(nvarchar(20), CONVERT(decimal(18, 2), mf.growth * 8.0 / 1024 / 1024)) +
+                    CONVERT(nvarchar(20), CONVERT(decimal(18, 2), mf.growth * CONVERT(decimal(18, 2), 8.0) / CONVERT(decimal(18, 2), 1024.0) / CONVERT(decimal(18, 2), 1024.0))) +
                     '' GB. Very large growth increments can lead to excessive space allocation. '' +
                     CASE
                         WHEN mf.type_desc = N''ROWS''
@@ -4856,7 +4883,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
                 url = N''https://erikdarling.com/sp_PerfCheck#LargeGrowth''
             FROM ' + QUOTENAME(@current_database_name) + N'.sys.database_files AS mf
             WHERE mf.is_percent_growth = 0
-            AND   mf.growth * 8.0 / 1024 / 1024 > 10; /* Growth > 10GB */';
+            AND   mf.growth * CONVERT(decimal(18, 2), 8.0) / CONVERT(decimal(18, 2), 1024.0) / CONVERT(decimal(18, 2), 1024.0) > 10.0; /* Growth > 10GB */';
 
             IF @debug = 1
             BEGIN