dedecms织梦数据量达到万级后 生成速度很慢解决办法
织梦由于生成静态文件原因及系统架构本身的原因，当数量达到万级别后，生成栏目及文档相当缓慢，今天做啦介绍下，通过改动系统文件来提升生成速度，修改之前请大家做好织梦程序的备份。
1、先设置 关闭副栏目（在系统----系统基本参数—性能选项里）
2、一般网站不需要 栏目交叉 交叉 所以 找到94行注释掉：
打开： include/arc.listview.class.php
找到以下代码并注释（注释代码为：/*代码*/）：
//获得交叉栏目ID
/*if($this->TypeLink->TypeInfos['cross']>0 && $this->TypeLink->TypeInfos['ispart']==0)
{
$selquery = '';
if($this->TypeLink->TypeInfos['cross']==1)
{
$selquery = "SELECT id,topid FROM `zuola.net_arctype` WHERE typename LIKE '{$this->Fields['typename']}' AND id<>'{$this->TypeID}' AND topid<>'{$this->TypeID}' ";
}
else
{
$this->Fields['crossid'] = preg_replace('/[^0-9,]/', '', trim($this->Fields['crossid']));
if($this->Fields['crossid']!='')
{
$selquery = "SELECT id,topid FROM `zuola.net_arctype` WHERE id in({$this->Fields['crossid']}) AND id<>{$this->TypeID} AND topid<>{$this->TypeID} ";
}
}
if($selquery!='')
{
$this->dsql->SetQuery($selquery);
$this->dsql->Execute();
while($arr = $this->dsql->GetArray())
{
$this->CrossID .= ($this->CrossID=='' ? $arr['id'] : ','.$arr['id']);
}
}
}*/
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继续查找并注释：
//获得附加表的相关信息
/*$addtable = $this->ChannelUnit->ChannelInfos['addtable'];
if($addtable!="")
{
$addJoin = " LEFT JOIN `$addtable` ON arc.id = ".$addtable.'.aid ';
$addField = '';
$fields = explode(',',$this->ChannelUnit->ChannelInfos['listfields']);
foreach($fields as $k=>$v)
{
$nfields[$v] = $k;
}
if(is_array($this->ChannelUnit->ChannelFields) && !empty($this->ChannelUnit->ChannelFields))
{
foreach($this->ChannelUnit->ChannelFields as $k=>$arr)
{
if(isset($nfields[$k]))
{
if(!empty($arr['rename'])) {
$addField .= ','.$addtable.'.'.$k.' as '.$arr['rename'];
}
else {
$addField .= ','.$addtable.'.'.$k;
}
}
}
}
}
else
{
$addField = '';
$addJoin = '';
}*/
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