hazelnut patched so that one single call to fnAddData is made once the 'all' query...

measured improvement for the redisplay part is
6 times faster with 1400 users (13 s down to 2s)
3 times faster with 330 resources (3.2s down to 1.2s)

diff --git a/plugins/hazelnut/static/js/hazelnut.js b/plugins/hazelnut/static/js/hazelnut.js
index dd7f841..290063e 100644 (file)
--- a/plugins/hazelnut/static/js/hazelnut.js
+++ b/plugins/hazelnut/static/js/hazelnut.js
@@ -39,6 +39,9 @@
             this.listen_query(options.query_uuid);
             this.listen_query(options.query_all_uuid, 'all');
 
+           /* an internal buffer for keeping lines and display them in one call to fnAddData */
+           this.buffered_lines = [];
+
             /* GUI setup and event binding */
             this.initialize_table();
         },
@@ -283,7 +286,8 @@
                 line.push(this.checkbox(this.key, record[this.key]));
     
             // XXX Is adding an array of lines more efficient ?
-            this.table.fnAddData(line);
+//            this.table.fnAddData(line);
+           this.buffered_lines.push(line)
 
         },
 
@@ -459,6 +463,8 @@
 
                 this.unspin();
             }
+           this.table.fnAddData (this.buffered_lines);
+           this.buffered_lines=[];
             this.received_all = true;
 
         }, // on_all_query_done