diff --git a/library/think/log/driver/File.php b/library/think/log/driver/File.php
index 28070e10..d4242f29 100644
--- a/library/think/log/driver/File.php
+++ b/library/think/log/driver/File.php
@@ -53,8 +53,9 @@ class File
         } else {
             $current_uri = "cmd:" . implode(' ', $_SERVER['argv']);
         }
-        $runtime    = number_format(microtime(true) - START_TIME, 6);
+        $runtime    = microtime(true) - START_TIME;
         $reqs       = number_format(1 / $runtime, 2);
+        $runtime    = number_format($runtime, 6);
         $time_str   = " [运行时间：{$runtime}s] [吞吐率：{$reqs}req/s]";
         $memory_use = number_format((memory_get_usage() - START_MEM) / 1024, 2);
         $memory_str = " [内存消耗：{$memory_use}kb]";
diff --git a/library/think/log/driver/Sae.php b/library/think/log/driver/Sae.php
index c50d18f4..95f5f650 100644
--- a/library/think/log/driver/Sae.php
+++ b/library/think/log/driver/Sae.php
@@ -41,8 +41,9 @@ class Sae
         } else {
             $current_uri = "cmd:" . implode(' ', $_SERVER['argv']);
         }
-        $runtime    = number_format(microtime(true) - START_TIME, 6);
+        $runtime    = microtime(true) - START_TIME;
         $reqs       = number_format(1 / $runtime, 2);
+        $runtime    = number_format($runtime, 6);
         $time_str   = " [运行时间：{$runtime}s] [吞吐率：{$reqs}req/s]";
         $memory_use = number_format((memory_get_usage() - START_MEM) / 1024, 2);
         $memory_str = " [内存消耗：{$memory_use}kb]";
diff --git a/library/think/log/driver/Socket.php b/library/think/log/driver/Socket.php
index 00843774..23d6f6cf 100644
--- a/library/think/log/driver/Socket.php
+++ b/library/think/log/driver/Socket.php
@@ -59,8 +59,9 @@ class Socket
         if (!$this->check()) {
             return false;
         }
-        $runtime    = number_format(microtime(true) - START_TIME, 6);
+        $runtime    = microtime(true) - START_TIME;
         $reqs       = number_format(1 / $runtime, 2);
+        $runtime    = number_format($runtime, 6);
         $time_str   = " [运行时间：{$runtime}s][吞吐率：{$reqs}req/s]";
         $memory_use = number_format((memory_get_usage() - START_MEM) / 1024, 2);
         $memory_str = " [内存消耗：{$memory_use}kb]";
diff --git a/library/think/log/driver/Trace.php b/library/think/log/driver/Trace.php
index 8227f5b2..03401bc8 100644
--- a/library/think/log/driver/Trace.php
+++ b/library/think/log/driver/Trace.php
@@ -43,8 +43,9 @@ class Trace
             return false;
         }
         // 获取基本信息
-        $runtime = number_format(microtime(true) - START_TIME, 6);
+        $runtime = microtime(true) - START_TIME;
         $reqs    = number_format(1 / $runtime, 2);
+        $runtime = number_format($runtime, 6);
         $mem     = number_format((memory_get_usage() - START_MEM) / 1024, 2);
 
         // 页面Trace信息