Consider PhpRedis backend for redis

[cebe]

#743

Maybe Yii2 should support Pecl Redis (PhpRedis)?
http://pecl.php.net/package/redis

http://alekseykorzun.com/post/53283070010/benchmarking-memcached-and-redis-clients

[pmoust]

Voting for it.

[gimox]

+1

[cebe]

Will do some tests when redis is ready to see whats better / faster.

[gimox]

Resis seem the best performance/stability solution. I m waiting a stable support to test it!

[iJackUA]

+1 for ability to use phpredis extension https://github.com/nicolasff/phpredis/
it is quite simple to use and very similar to native redis functions
I also do not like over-simplified-wtf implemetations like Rediska, and have good feeling about phpredis after using it in recent projects.

[gimox]

now i'm usign redis 2.6 with yii2 , and everythink is working good and stable.
it's very fast!!

[savvot]

+1 for native phpredis ext support

Just tested perfomance difference on this simple script (writting and reading 1000 keys):

        $CNT = 1000;
        $keys = range(1, $CNT);

        $phpredis = new \Redis();
        $redis = Yii::$app->cache;  // Configured as yii\redis\Cache

        //$phpredis->connect('127.0.0.1', 6379);
        $phpredis->connect('/var/run/redis/redis.sock');

        $start = microtime(true);
        for($i=0; $i<$CNT; $i++) {
            $phpredis->setex($keys[$i], $i, 300);
        }
        for($i=0; $i<$CNT; $i++) {
            $phpredis->get($keys[$i]);
        }
        echo (microtime(true)-$start).'<br>';


        $start = microtime(true);
        for($i=0; $i<$CNT; $i++) {
            $redis->set($keys[$i], $i, 300);
        }
        for($i=0; $i<$CNT; $i++) {
            $redis->get($keys[$i]);
        }
        echo (microtime(true)-$start);

Results are (on real production server, Ubuntu 14.04, E5-2620v2):

unix socket phpredis: 0.067816972732544
tcp phpredis: 0.10558891296387
tcp yii2-redis: 0.21003198623657

As for me - difference is huge.

Also:

• yii2-redis doesn't support unix sockets yet
• phpredis supports RedisArray https://github.com/nicolasff/phpredis/blob/master/arrays.markdown, big help with sharding

[neanton]

Also using phpredis as a di service. Would be a + if we have that out of the box.

[cebe]

Also using phpredis as a di service

What do you mean with that? can you please elaborate a bit?

[neanton]

I mean that I use https://github.com/nicolasff/phpredis but I set it up in my "components" section of a config. So Redis class is available from DI container as a service.

I DO NOT use redis ActiveRecord

[Insolita]

+1 for native phpredis ext support

[jasonhancock]

+1

[samdark]

Moved to yiisoft/yii2-redis#45