diff --git a/htdocs/admin/debugbar.php b/htdocs/admin/debugbar.php
index c55de38f5e2..34cc06c5f08 100644
--- a/htdocs/admin/debugbar.php
+++ b/htdocs/admin/debugbar.php
@@ -92,7 +92,8 @@ print '<td class="right"><input type="submit" class="button" '.$option.' value="
 print "</tr>\n";
 
 print '<tr class="oddeven"><td>'.$langs->trans("DEBUGBAR_LOGS_LINES_NUMBER").'</td>';
-print '<td colspan="2"><input type="text" class="flat" name="DEBUGBAR_LOGS_LINES_NUMBER" value="'.(empty($conf->global->DEBUGBAR_LOGS_LINES_NUMBER)?1000:$conf->global->DEBUGBAR_LOGS_LINES_NUMBER).'">';
+print '<td colspan="2"><input type="text" class="flat" name="DEBUGBAR_LOGS_LINES_NUMBER" value="'.(empty($conf->global->DEBUGBAR_LOGS_LINES_NUMBER) ? 250 : $conf->global->DEBUGBAR_LOGS_LINES_NUMBER).'">';   // This slow seriously output
+print ' '.$langs->trans("WarningValueHigherSlowsDramaticalyOutput");
 print '</td></tr>';
 
 print '</table>';
diff --git a/htdocs/debugbar/class/DataCollector/DolLogsCollector.php b/htdocs/debugbar/class/DataCollector/DolLogsCollector.php
index 74782b0b524..8c03bdc2830 100644
--- a/htdocs/debugbar/class/DataCollector/DolLogsCollector.php
+++ b/htdocs/debugbar/class/DataCollector/DolLogsCollector.php
@@ -32,7 +32,7 @@ class DolLogsCollector extends MessagesCollector
 		parent::__construct($name);
 
 		$this->path = $path ?: $this->getLogsFile();
-		$this->lines = $conf->global->DEBUGBAR_LOGS_LINES_NUMBER ? $conf->global->DEBUGBAR_LOGS_LINES_NUMBER : 1000;
+		$this->lines = empty($conf->global->DEBUGBAR_LOGS_LINES_NUMBER) ? 250 : $conf->global->DEBUGBAR_LOGS_LINES_NUMBER;   // This slow seriously output
 	}
 
 	/**
diff --git a/htdocs/debugbar/class/DataCollector/DolMemoryCollector.php b/htdocs/debugbar/class/DataCollector/DolMemoryCollector.php
index 4947ef73282..b6525633481 100644
--- a/htdocs/debugbar/class/DataCollector/DolMemoryCollector.php
+++ b/htdocs/debugbar/class/DataCollector/DolMemoryCollector.php
@@ -8,6 +8,23 @@ use \DebugBar\DataCollector\MemoryCollector;
 
 class DolMemoryCollector extends MemoryCollector
 {
+    /**
+     *	Return value of indicator
+     *
+     *  @return void
+     */
+    public function collect()
+    {
+        global $langs;
+
+        $this->updatePeakUsage();
+        return array(
+            'peak_usage' => $this->peakUsage,
+            //'peak_usage_str' => $this->getDataFormatter()->formatBytes($this->peakUsage, 2)
+            'peak_usage_str' => $this->peakUsage.' '.$langs->trans("bytes")
+        );
+    }
+
 	/**
 	 *	Return widget settings
 	 *
diff --git a/htdocs/langs/en_US/admin.lang b/htdocs/langs/en_US/admin.lang
index fbf37558a8e..3261707579f 100644
--- a/htdocs/langs/en_US/admin.lang
+++ b/htdocs/langs/en_US/admin.lang
@@ -1869,4 +1869,5 @@ DebugBarSetup=DebugBar Setup
 GeneralOptions=General Options
 LogsLinesNumber=Number of lines to show on logs tab
 UseDebugBar=Use the debug bar
-DEBUGBAR_LOGS_LINES_NUMBER=Number of last log lines to keep in console
\ No newline at end of file
+DEBUGBAR_LOGS_LINES_NUMBER=Number of last log lines to keep in console
+WarningValueHigherSlowsDramaticalyOutput=Warning, higher values slows dramaticaly output
\ No newline at end of file