Benchmarking and improving theme

support
1

I am having some trouble understanding how to evaluate the speed at which hugo is processing my theme and content.

My theme is taking over a minute to render the whole site, and I am guessing it has a lot to do with the way that I ported the theme. What sort of bottlenecks should I be looking for here?

hugo --stepAnalysis --templateMetrics --templateMetricsHints
Building sites … initialize:
	375.075305ms (378.858036ms)	   11.59 MB 	170803 Allocs
load data:
	53.786µs (379.35551ms)	    0.00 MB 	30 Allocs
load i18n:
	481ns (379.693721ms)	    0.00 MB 	0 Allocs
read and convert pages from source:
	7.310749924s (7.691075576s)	  173.03 MB 	669815 Allocs
build Site meta:
	17.816172ms (7.710325873s)	    2.14 MB 	33738 Allocs
build Site meta:
	156.963µs (7.710826818s)	    0.01 MB 	282 Allocs
prepare pages:
	150.773616ms (7.862051436s)	   16.42 MB 	130664 Allocs
render and write aliases:
	3.921725ms (7.866339263s)	    0.07 MB 	1143 Allocs
render and write pages:
	1m2.797401315s (1m10.664276911s)	 4382.27 MB 	125343410 Allocs
render and write Sitemap:
	103.26934ms (1m10.768118153s)	    8.32 MB 	169158 Allocs
render and write robots.txt:
	10.695µs (1m10.768454049s)	    0.00 MB 	9 Allocs
render and write 404:
	2.328271ms (1m10.771097784s)	    0.18 MB 	3896 Allocs
render and write pages:
	546.344392ms (1m11.317890031s)	   39.98 MB 	676708 Allocs
prepare pages:
	5.059981ms (1m11.323438908s)	    0.81 MB 	3889 Allocs
render and write aliases:
	153.123µs (1m11.323910706s)	    0.00 MB 	83 Allocs
render and write pages:
	194.8843ms (1m11.519268279s)	   19.78 MB 	407677 Allocs
render and write Sitemap:
	2.101481ms (1m11.521804288s)	    0.11 MB 	2984 Allocs
render and write robots.txt:
	9.156µs (1m11.522121576s)	    0.00 MB 	9 Allocs
render and write 404:
	2.242685ms (1m11.524683485s)	    0.22 MB 	4517 Allocs
render and write pages:
	12.418712ms (1m11.537455658s)	    1.48 MB 	22999 Allocs

Template Metrics:

      cache     cumulative       average       maximum
  potential       duration      duration      duration  count  template
      -----     ----------      --------      --------  -----  --------
          0 55.132258005s    33.78202ms   205.23696ms   1632  theme/index.html
          2 25.189533903s   15.434763ms  127.712522ms   1632  theme/partials/highlighted_stories.html
          0 16.336586781s   11.553455ms  436.722981ms   1414  theme/instagram/instagram.html
          0 11.653866557s   52.026189ms  142.727581ms    224  theme/unlisted/list.html
          0   8.76427927s   46.127785ms  140.411721ms    190  theme/taxonomy/category.html
         16  7.965004571s    1.906415ms  121.121438ms   4178  theme/partials/header.html
         99  5.376794695s     1.28693ms  280.713818ms   4178  theme/partials/top_navigation.html
          0  4.923603536s   18.440462ms  203.611115ms    267  theme/_default/single.html
          9   4.53370277s    1.085137ms  113.348541ms   4178  theme/partials/footer.html
          0    3.7483809s    9.969098ms  122.991214ms    376  theme/taxonomy/tag.html
          0  2.665127388s     691.343µs  141.722216ms   3855  theme/_default/summary.html
          0  1.430422874s    3.480347ms  271.878297ms    411  _internal/_default/rss.xml
          0  998.322939ms     353.138µs   80.866129ms   2827  theme/instagram/summary.html
          0  801.038546ms   47.119914ms  363.680654ms     17  theme/_default/page.html
         98  775.517042ms     185.619µs  153.993637ms   4178  theme/partials/footer-links.html
         49  727.285192ms     175.165µs    80.74329ms   4152  theme/partials/pagination.html
          0  535.152793ms     327.912µs    54.72669ms   1632  theme/_default/li.html
          0   530.36221ms   25.255343ms  134.288832ms     21  theme/taxonomy/story.html
          0  497.574862ms  497.574862ms  497.574862ms      1  json/single.html
          0  388.097899ms   24.256118ms  145.853154ms     16  theme/post/list.html
          0  369.434425ms  184.717212ms  368.027556ms      2  theme/rss.xml
         99  333.729283ms     135.717µs   80.799148ms   2459  theme/partials/title_section.html
          0  326.269153ms   54.378192ms  138.570776ms      6  theme/_default/terms.html
          0   211.80755ms   17.650629ms   65.327047ms     12  theme/_default/list.html
          0  154.525467ms  154.525467ms  154.525467ms      1  theme/unlisted/unlistedarticles.html
          0  100.644679ms   50.322339ms   98.716539ms      2  theme/sitemap.xml
          0   12.755698ms     283.459µs    1.852894ms     45  _internal/shortcodes/tweet.html
          0    9.069248ms      89.794µs     475.301µs    101  theme/shortcodes/galleryimage.html
          0    4.268484ms    2.134242ms    2.146428ms      2  theme/404.html
        100    2.657721ms       1.559µs      92.381µs   1704  theme/partials/googletagmanager.html
          0    1.253147ms      73.714µs     376.013µs     17  _internal/shortcodes/youtube.html
          0     407.928µs     407.928µs     407.928µs      1  _internal/_default/sitemapindex.xml
          0     228.985µs     228.985µs     228.985µs      1  theme/shortcodes/text
          0     224.494µs      28.061µs      71.113µs      8  theme/shortcodes/gallery.html
          0     203.526µs       25.44µs      122.09µs      8  theme/shortcodes/galleryinit.html
          0       89.73µs       89.73µs       89.73µs      1  theme/shortcodes/text.html

                   |  EN  |  PT
+------------------+------+------+
  Pages            | 2477 |   49
  Paginator pages  | 2047 |   19
  Non-page files   | 2804 | 1297
  Static files     |  764 |  764
  Processed images |    0 |    0
  Aliases          |  408 |   12
  Sitemaps         |    2 |    1
  Cleaned          |    0 |    0

Total in 71539 ms
2

You render your home page tempalte 1632 times, which does not make much sense to me.

But you need to link to the source if you want any more than guesses.

3

thanks for the quick reply @bep

I don’t see why that could happen, and i do have the theme published here: https://github.com/brunoamaral/future-imperfect-DI

I was actually thinking that in some cases I may have unnecessary IFs and ranges. One of which I was able to solve in another thread and bring the build time down by 30 seconds.

4

He’s paginating the home page with 1 article per page, but never actually using the resulting pages. The “older posts” button uses the post section’s pagination, so the actual navigation is /post/page/N/ instead of /page/N/.

themes/future-imperfect-DI/layouts/index.html:

{{ $loop := (.Paginate (where (where .Data.Pages "Type" "!=" "page") ".Params.unlisted" "!=" true ) 1).Pages }}

-j

1 Like
5

thanks for noticing @jgreely !

I rewrote that bit like this:

{{ $loop := (where (where .Data.Pages "Type" "!=" "page") ".Params.unlisted" "!=" true ) }}

{{ partial "highlighted_stories.html" . }}
{{ range first 1 $loop }}
	{{ .Render "li" }}
{{ end }}

and it was quite an improvement:

Template Metrics:

    cache     cumulative       average       maximum
potential       duration      duration      duration  count  template
    -----     ----------      --------      --------  -----  --------
        0  3.726837651s   21.922574ms   35.990012ms    170  theme/index.html
        0  3.232025681s   14.428686ms   27.236281ms    224  theme/unlisted/list.html
        0  2.869832202s    2.029584ms   13.439723ms   1414  theme/instagram/instagram.html
        0  1.960847269s   10.320248ms   22.892158ms    190  theme/taxonomy/category.html
        2  1.709990299s   10.058766ms   20.857199ms    170  theme/partials/highlighted_stories.html
       17  1.398096264s     514.762µs   10.552804ms   2716  theme/partials/header.html
        0  1.001004224s    3.749079ms   13.941071ms    267  theme/_default/single.html
       30  978.342598ms     360.214µs    3.712955ms   2716  theme/partials/footer.html
        0  922.003314ms    2.452136ms    8.794505ms    376  theme/taxonomy/tag.html
       99  824.992481ms     303.752µs    2.427806ms   2716  theme/partials/top_navigation.html
        0  530.574737ms     137.632µs    2.360128ms   3855  theme/_default/summary.html
        0  233.245793ms     567.508µs   51.244149ms    411  _internal/_default/rss.xml
        0  219.302372ms      77.574µs     745.363µs   2827  theme/instagram/summary.html
       98  125.162028ms      46.083µs    2.818259ms   2716  theme/partials/footer-links.html
       76  106.003182ms      39.406µs    1.194178ms   2690  theme/partials/pagination.html
        0  101.069168ms   16.844861ms   35.570206ms      6  theme/_default/terms.html
        0   94.283844ms   94.283844ms   94.283844ms      1  json/single.html
        0   73.422806ms    4.588925ms    8.208275ms     16  theme/post/list.html
        0   67.582229ms    3.218201ms    4.633659ms     21  theme/taxonomy/story.html
        0   65.958024ms   32.979012ms   65.038728ms      2  theme/rss.xml
        0   64.697512ms   32.348756ms   63.631871ms      2  theme/sitemap.xml
       99   56.037085ms      56.205µs     493.041µs    997  theme/partials/title_section.html
        0   54.010464ms    4.500872ms   11.860365ms     12  theme/_default/list.html
        0   40.574634ms    2.386743ms     4.85888ms     17  theme/_default/page.html
        0   33.652659ms     197.956µs    1.515437ms    170  theme/_default/li.html
        0   14.298039ms   14.298039ms   14.298039ms      1  theme/unlisted/unlistedarticles.html
      100    7.074683ms       4.151µs     408.489µs   1704  theme/partials/googletagmanager.html
        0    6.804792ms     151.217µs     503.893µs     45  _internal/shortcodes/tweet.html
        0    6.506568ms      64.421µs     215.371µs    101  theme/shortcodes/galleryimage.html
        0     2.55309ms    1.276545ms    1.486006ms      2  theme/404.html
        0     757.614µs      44.565µs     222.127µs     17  _internal/shortcodes/youtube.html
        0     317.925µs     317.925µs     317.925µs      1  _internal/_default/sitemapindex.xml
        0     309.645µs     309.645µs     309.645µs      1  theme/shortcodes/text
        0     278.935µs      34.866µs      89.011µs      8  theme/shortcodes/gallery.html
        0     197.735µs      24.716µs      115.99µs      8  theme/shortcodes/galleryinit.html
        0      91.401µs      91.401µs      91.401µs      1  theme/shortcodes/text.html


                     |  EN  |  PT
  +------------------+------+------+
    Pages            | 2477 |   49
    Paginator pages  |  600 |    4
    Non-page files   | 2804 | 1297
    Static files     |  766 |  766
    Processed images |    0 |    0
    Aliases          |  408 |   12
    Sitemaps         |    2 |    1
    Cleaned          |    0 |    0

  Total in 7272 ms
2 Likes