php的foreach循环6万多次应该如何使用多线程
背景:我在thinkphp框架下使用foreach循环生成一个缓存,然后在别的控制和方法下调用缓存。
面临的问题是首先排除按需生成,因为不确定6万多条数据中那一条能够用到,所以需要生成全部内容,又因为生成内容耗时太长所以发问题求教, 缓存中每条数据有6个字段其中4个为string,2个为int
现在的运行方式是直接foreach循环然后使用S方法生成文件缓存。 这样生成的文件缓存大约为15M,生成的时长为5-7s,含数据库查询时间。
foreach($data as $v){ $arr[$v['id']]=$v; } S('cache',$arr);
请问1、如果采用多线程方式,应该如何运行?
或者给我讲讲如何分多线程的原理也可以
【已解决】2、使用phpredis缓存的话,使用hash类型应该如何批量插入键值
我的意思是,将数组直接写入进去,但是不序列化他
$cache=new Redis(); $cache->connect(......) foreach($data as $v){ $arr[$v['id']]=$v; foreach($v as $k=>$val){ $cache->set($k,$val); } }
发现在phpredis中有一个hmset(key,$array)可以批量设置
回复内容:
背景:我在thinkphp框架下使用foreach循环生成一个缓存,然后在别的控制和方法下调用缓存。
面临的问题是首先排除按需生成,因为不确定6万多条数据中那一条能够用到,所以需要生成全部内容,又因为生成内容耗时太长所以发问题求教, 缓存中每条数据有6个字段其中4个为string,2个为int
现在的运行方式是直接foreach循环然后使用S方法生成文件缓存。 这样生成的文件缓存大约为15M,生成的时长为5-7s,含数据库查询时间。
foreach($data as $v){ $arr[$v['id']]=$v; } S('cache',$arr);
请问1、如果采用多线程方式,应该如何运行?
或者给我讲讲如何分多线程的原理也可以
【已解决】2、使用phpredis缓存的话,使用hash类型应该如何批量插入键值
我的意思是,将数组直接写入进去,但是不序列化他
$cache=new Redis(); $cache->connect(......) foreach($data as $v){ $arr[$v['id']]=$v; foreach($v as $k=>$val){ $cache->set($k,$val); } }
发现在phpredis中有一个hmset(key,$array)可以批量设置
还是用多进程吧,php中貌似对线程支持的不是很好,在一些系统上不能用。
你查看fork函数,然后就知道怎么用多进程了。

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