Optimisation "partialCached"

[echarp]

Some partials are mostly static, and could be rendered once and reused.

This uses a powerful cache mechanism, documented here: https://gohugo.io/functions/partialcached/

[budparr]

Thank you @echarp I'll give this a look. PartialChached can be tricky on some templates. Did you select those templates via templateMetricsHints?

[echarp]

I did look into templateMetricsHints, but really I mostly analyzed what could be cached.

It seems those partials are fixed, at least in my circumstances, and thus are proper candidates.

Note, I'm using your theme on a tool with more than 12k pages, have a look => https://filsdu.net

[budparr]

Thanks, @echarp I'd be interested in your before and after build times are for a site that size.

[echarp]

with non cached partial

hugo --renderToMemory --templateMetrics --logFile partial.txt
LOG:   2019/03/22 19:57:29 
Template Metrics:

LOG:   2019/03/22 19:57:29      cumulative       average       maximum         
       duration      duration      duration  count  template
     ----------      --------      --------  -----  --------
   55.99859089s    8.749779ms   60.266864ms   6400  article/single.html
   42.66242535s     9.39908ms  108.978797ms   4539  taxonomy/taxonomy.html
  29.528809719s    4.613876ms   50.762521ms   6400  partials/menu-contextual.html
  18.920556903s   53.147631ms  162.055461ms    356  _default/list.html
  16.607884057s     467.366µs   32.799173ms  35535  partials/summary-with-image.html
  11.751293525s     519.141µs   30.136921ms  22636  partials/social-follow.html
    9.19453971s     812.382µs   30.564489ms  11318  partials/site-navigation.html
   7.379123946s     651.981µs   23.282555ms  11318  partials/site-footer.html
   6.271951908s     979.533µs   33.788226ms   6403  partials/page-header.html
   5.801784229s     119.822µs   16.351324ms  48420  partials/date.html
   4.257862343s     866.299µs   20.092843ms   4915  partials/site-header.html
   3.775193399s      55.592µs   29.407884ms  67908  partials/new-window-icon.html
   3.672306193s      75.976µs    25.24412ms  48335  partials/authors.html
   2.735878044s      56.512µs   12.099978ms  48412  partials/sites.html
   2.564887398s     400.763µs   18.926342ms   6400  partials/summary.html
   2.177925813s      48.935µs   20.232508ms  44506  partials/author.html
   2.023401878s      683.12µs   12.580863ms   2962  _internal/_default/rss.xml
   1.944865174s      28.639µs    29.36849ms  67908  partials/svg/new-window.svg
   1.894463311s     296.009µs   24.137278ms   6400  partials/tags.html
   1.766548193s      36.381µs   18.545028ms  48556  partials/href.html
   1.691319186s  112.754612ms  235.258142ms     15  series/series.html
   1.306725432s      56.048µs   23.979564ms  23314  partials/tag.html
   749.936724ms       33.13µs   21.257615ms  22636  partials/svg/twitter.svg
   696.069165ms      61.501µs   17.790938ms  11318  partials/site-scripts.html
   617.523421ms       27.28µs   20.055006ms  22636  partials/svg/mastodon.svg
   571.855171ms      50.526µs   10.171017ms  11318  partials/site-favicon.html
   453.827381ms  453.827381ms  453.827381ms      1  _internal/_default/sitemap.xml
   429.462964ms      18.972µs   18.498808ms  22636  partials/svg/gitlab.svg
   288.571738ms   96.190579ms  210.344045ms      3  taxonomy/list.html
   158.382643ms      13.993µs   12.007046ms  11318  partials/i18nlist.html
    58.832291ms   58.832291ms   58.832291ms      1  index.html
    13.521369ms   13.521369ms   13.521369ms      1  series/list.html
     6.089812ms    3.044906ms     3.75827ms      2  page/single.html
     4.406189ms    4.406189ms    4.406189ms      1  rss.xml
        2.217ms       2.217ms       2.217ms      1  404.html
LOG:   2019/03/22 19:57:29 
LOG:   2019/03/22 19:57:29 Total in 40475 ms

with partialCached:

hugo --renderToMemory --templateMetrics --logFile partialCached.txt
LOG:   2019/03/22 21:20:33 
Template Metrics:

LOG:   2019/03/22 21:20:33      cumulative       average       maximum         
       duration      duration      duration  count  template
     ----------      --------      --------  -----  --------
  44.892119346s    7.014393ms  102.414219ms   6400  article/single.html
  36.694767931s    8.084328ms   132.84283ms   4539  taxonomy/taxonomy.html
  29.428822744s    4.598253ms   72.979599ms   6400  partials/menu-contextual.html
  17.731134342s   49.806557ms  170.897916ms    356  _default/list.html
  17.122216577s      481.84µs   53.049223ms  35535  partials/summary-with-image.html
   5.913151909s     122.122µs   20.623611ms  48420  partials/date.html
   3.668933772s      75.906µs   20.456571ms  48335  partials/authors.html
    2.83472341s      58.554µs    17.88621ms  48412  partials/sites.html
   2.456012594s     383.751µs   15.412213ms   6400  partials/summary.html
   2.259192254s      50.761µs   20.402341ms  44506  partials/author.html
    1.85801836s      38.265µs   20.213535ms  48556  partials/href.html
   1.834376022s     286.621µs   23.482806ms   6400  partials/tags.html
     1.7062027s      576.03µs     3.26937ms   2962  _internal/_default/rss.xml
   1.431243503s   95.416233ms  166.422346ms     15  series/series.html
   1.268648946s      54.415µs   18.172071ms  23314  partials/tag.html
   645.177671ms     131.267µs    2.199887ms   4915  partials/site-header.html
   490.144369ms      76.549µs   23.087595ms   6403  partials/page-header.html
     446.0089ms    446.0089ms    446.0089ms      1  _internal/_default/sitemap.xml
   286.038057ms   95.346019ms   213.94181ms      3  taxonomy/list.html
    59.370311ms   59.370311ms   59.370311ms      1  index.html
    21.952602ms    7.317534ms   18.326557ms      3  partials/social-follow.html
    21.113157ms   10.556578ms   18.612347ms      2  partials/site-footer.html
    12.377763ms   12.377763ms   12.377763ms      1  series/list.html
     7.631455ms    3.815727ms    5.585825ms      2  page/single.html
     3.749934ms    3.749934ms    3.749934ms      1  rss.xml
     3.229502ms    3.229502ms    3.229502ms      1  partials/site-navigation.html
      1.42968ms     158.853µs     494.311µs      9  partials/new-window-icon.html
     1.351976ms    1.351976ms    1.351976ms      1  404.html
     1.137019ms    1.137019ms    1.137019ms      1  partials/site-scripts.html
      771.042µs      85.671µs     285.674µs      9  partials/svg/new-window.svg
      662.655µs     220.885µs     250.652µs      3  partials/svg/twitter.svg
      484.843µs     161.614µs     333.391µs      3  partials/svg/mastodon.svg
      364.979µs     121.659µs     280.869µs      3  partials/svg/gitlab.svg
       319.24µs      319.24µs      319.24µs      1  partials/i18nlist.html
      131.409µs     131.409µs     131.409µs      1  partials/site-favicon.html
LOG:   2019/03/22 21:20:33 
LOG:   2019/03/22 21:20:33 Total in 36395 ms