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Magento 2 Caching Strategies

Magento 2 Caching Strategies

Meet Magento Poland, Warsaw, November 24th to November 25th 2014.

Marko Martinović

November 24, 2014
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  1. Meet Magento Poland 2014
    Meet Magento Poland 2014
    Marko Martinović
    Magento 2 Caching Strategies

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  2. Meet Magento Poland 2014
    2.0 Platform Goals
    “Improved performance and scalability”

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  3. Meet Magento Poland 2014
    Architecture
    Built on top of Zend_Cache

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  4. Meet Magento Poland 2014
    Architecture
    Multiple frontend pools, each associated to
    one or two level backend adapter

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  5. Meet Magento Poland 2014
    Architecture
    Each cache type with its own class enforcing
    specific cache tag

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  6. Meet Magento Poland 2014
    Frontend Pools
    Out the box:
    • default - General type instances
    • page_cache - PageCache type instance

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  7. Meet Magento Poland 2014
    Backend Adapters
    Cm_Cache_Backend_File as the default
    cache backend

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  8. Meet Magento Poland 2014
    Backend Adapters
    All the usual suspects, with MongoDB
    adapter introduced

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  9. Meet Magento Poland 2014
    Cache Types
    Good old
    ● Configuration
    ● Layouts
    ● Blocks HTML output
    ● Collections data
    ● EAV types and
    attributes
    ● Translations
    Brand New
    ● View files fallback
    ● View files pre-
    processing
    ● Integrations
    Configuration
    ● Integrations API
    Configuration
    ● Web Services
    Configuration
    ● PageCache

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  10. Meet Magento Poland 2014
    Collections Data
    Fetch strategy interface with Query and
    Cache implementations

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  11. Meet Magento Poland 2014
    Collections Data
    Store, Store Group, Website and Catalog
    Category collection cached

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  12. Meet Magento Poland 2014
    EAV Types and Attributes
    Implemented to cache eav_entity_type
    table collection. Still here, still unused, still
    no one knows why.

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  13. Meet Magento Poland 2014
    EAV Types and Attributes
    "One developer is working on it for a month,
    other comments it out for testing, third one is
    then afraid to enable it back"
    -Ivan Weiler @Inchoo

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  14. Meet Magento Poland 2014
    View Files Fallback
    Requested asset is being searched for using
    fallback rules applied to fallback context

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  15. Meet Magento Poland 2014
    View Files Fallback
    Path to requested asset resolved and
    cached

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  16. Meet Magento Poland 2014
    View Files Pre-processing
    Pre-processing of Magento-flavoured CSS
    tricks like @magento_import, @import,
    scope notation file references and Less

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  17. Meet Magento Poland 2014
    View Files Pre-processing
    Path to pre-processed asset cached

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  18. Meet Magento Poland 2014
    PageCache
    Out the box:
    • PHP/AJAX based (Built-in)
    • Reverse proxy/ESI/AJAX based (Varnish)

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  19. Meet Magento Poland 2014
    PageCache
    Caching controlled by ‘Cache-Control’:
    public, max-age=XY, s-maxage=XY
    vs.
    private, max-age=YZ
    vs.
    no-store, no-cache, must-revalidate, max-
    age=0

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  20. Meet Magento Poland 2014
    PageCache
    Setting cacheable=false to some block
    results with whole page not being cached

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  21. Meet Magento Poland 2014
    Hole Punching
    Setting _isScopePrivate to some block
    results with its content not being cached

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  22. Meet Magento Poland 2014
    Hole Punching
    Setting ttl to some block results with its
    content being served through ESI and
    cached by Varnish

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  23. Meet Magento Poland 2014
    Built-in
    Page cache saved through dedicated
    frontend instance by PHP code

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  24. Meet Magento Poland 2014
    Built-in
    Dynamic blocks not cached and served
    exclusively through AJAX:
    Default welcome msg!

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  25. Meet Magento Poland 2014
    Built-in
    Pros
    ● Works out the box with
    no special setup
    Cons
    ● Leaves a lot to be
    desired performance-
    wise

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  26. Meet Magento Poland 2014
    Varnish

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  27. Meet Magento Poland 2014
    Varnish
    Page cache maintained and served by
    reverse proxy

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  28. Meet Magento Poland 2014
    Varnish
    Without ttl set, dynamic blocks not cached
    and served through AJAX

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  29. Meet Magento Poland 2014
    Varnish
    With ttl set, dynamic blocks cached and
    served through ESI:

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  30. Meet Magento Poland 2014
    Varnish
    Pros
    ● The best performing
    caching solution, if
    properly configured
    Cons
    ● The worst performing
    caching solution, if
    configured improperly
    ● Considerable setup and
    maintenance overhead
    ● Requires SSL
    termination proxy to
    support HTTPS

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  31. Meet Magento Poland 2014
    Benchmarks Magento 2 (Alpha 102)
    Magento EE (1.14.0.1)

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  32. Meet Magento Poland 2014
    Any questions?

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  33. Meet Magento Poland 2014
    @MarkoTechyTalk
    Team Lead/MCD+ at Inchoo
    Thank you!

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