APCu cache not working

[Derbai]

Dear All, I have enabled APC cache and installed APCu cache manager module but the memory usage is still 100% free. It seams that APC not cache any data. I use APCu Version 5.1.11 ana PHP 7.1.15 On performance tab cache and full page cache are enabled. Any suggestion on why it is not working? Thanks, Daniele

[lesley]

How is your server setup? APCu will only cache once users log into your site as well.

[Derbai]

I tried to log-in but there are no entries anyway. This is what I see on APCu manager:

General Cache Information APCu Version 5.1.11 PHP Version 7.1.15 APCu Host xxxx Server Software Apache Shared Memory 1 Segment(s) with 32.0 MBytes (mmap memory) Start Time 2018/03/13 23:15:21 Uptime 18 hours and 11 minutes Cache Information Cached Variables 0 ( 0.0 Bytes) Hits 0 Misses 0 Request Rate (hits, misses) 0.00 cache requests/second Hit Rate 0.00 cache requests/second Miss Rate 0.00 cache requests/second Insert Rate 0.00 cache requests/second Cache full count 0 Runtime Settings apc.coredumpunmap 0 apc.enablecli 0 apc.enabled 1 apc.entrieshint 4096 apc.gcttl 3600 apc.mmapfilemask
apc.preloadpath
apc.serializer php apc.shmsegments 1 apc.shmsize 32M apc.slamdefense 1 apc.smart 0 apc.ttl 0 apc.userequesttime 1 apc.writable /tmp

My server is a CENTOS 6.9 with PHP 7.1 PHP-FPM Enabled MemCache enabled. I don't know which other information you should know about it. Thanks.

[ccleaner]

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[Briljander]

@lesley Why is it like this, that it only caches logged in users?

I also have experienced some problems with APCu caching back-office pages and therefor showing incorrect settings and different stats in APC.php depending on computer I am using.

Regards Jonas

[lesley]

Simply put, that is the function of APCu.

[Briljander]

Hmm, ok. Is redis working the same way? Cause my checkout uses guest login without users needed to log in so most of my customers wouldn't benefit of APCu then.

[lesley]

I guess I should ask, what kind of data are you trying to cache?

[Briljander]

As much as possible without any problems I guess. Just trying do make my site load faster. Used your modules and saw that it didn't cache anything. Now I have had some help from my hosting company and now it's caching and the site loads faster but seems like APCu has some problems.

[Chandra]

I can see the stats populated only with full page cache on.