Logo rendering adjustments

[kyleam]

This PR proposes two logo-related tweaks:

1. change the includegraphics call for the title logo to avoid changing the logo's aspect ratio

2. add a smaller logo image and use it in the page headers in order speed up rendering. This is particularly relevant for Metworx 25-02, where rendering has a substantial slowdown that, at least largely, looks to be the result of the slower header logo insertion under xelatex.

Screenshots

Title logo

pre

post

Header logo

pre

post

Timings

Rendering a subset of scorecards

Summary

render time in seconds, pre (release, 54c48d4) and post (tip of this PR)

	24-04 pre	25-02 pre	24-04 post	25-02 post
bbr	8.8	24.9	8.8	9.1
bbr.bayes	6.0	14.1	6.0	6.3
mrgsolve	7.6	24.6	7.6	7.7
nmrec	5.5	10.9	5.5	5.8

Detailed output, including rmarkdown:::perf_timer_summary() output, elapsed time for each package, and total elapsed time:

pre, 24-04.03.01

R 4.3.1, pandoc 3.1.8

               time
knitr          3773
pandoc         4255
post-processor    0
pre-processor     2
render         8078
bbr_1.14.0: 8.838 secs

               time
knitr          2146
pandoc         3800
post-processor    0
pre-processor     1
render         5959
bbr.bayes_0.2.2: 5.995 secs

               time
knitr          3245
pandoc         4264
post-processor    0
pre-processor     2
render         7527
mrgsolve_1.5.2: 7.561 secs

               time
knitr          1710
pandoc         3716
post-processor    0
pre-processor     2
render         5438
nmrec_0.5.0: 5.471 secs

rendered 4 packages in 27.89 secs

pre, 25-02.00.00

R 4.4.2, pandoc 3.3

                time
knitr           3709
pandoc         20348
post-processor     0
pre-processor      2
render         24113
bbr_1.14.0: 24.9 secs

                time
knitr           2112
pandoc         11924
post-processor     0
pre-processor      1
render         14051
bbr.bayes_0.2.2: 14.09 secs

                time
knitr           3049
pandoc         21487
post-processor     0
pre-processor      2
render         24555
mrgsolve_1.5.2: 24.59 secs

                time
knitr           1675
pandoc          9169
post-processor     0
pre-processor      1
render         10856
nmrec_0.5.0: 10.9 secs

rendered 4 packages in 1.242 mins

post, 24-04.03.01

R 4.3.1, pandoc 3.1.8:

               time
knitr          3722
pandoc         4285
post-processor    0
pre-processor     3
render         8055
bbr_1.14.0: 8.807 secs

               time
knitr          2166
pandoc         3797
post-processor    0
pre-processor     1
render         5978
bbr.bayes_0.2.2: 6.013 secs

               time
knitr          3238
pandoc         4268
post-processor    0
pre-processor     1
render         7524
mrgsolve_1.5.2: 7.559 secs

               time
knitr          1690
pandoc         3745
post-processor    0
pre-processor     1
render         5448
nmrec_0.5.0: 5.481 secs

rendered 4 packages in 27.89 secs

post, 25-02.00.00

R 4.4.2, pandoc 3.3

               time
knitr          3745
pandoc         4565
post-processor    0
pre-processor     3
render         8354
bbr_1.14.0: 9.149 secs

               time
knitr          2148
pandoc         4109
post-processor    0
pre-processor     2
render         6273
bbr.bayes_0.2.2: 6.307 secs

               time
knitr          3069
pandoc         4595
post-processor    0
pre-processor     2
render         7682
mrgsolve_1.5.2: 7.717 secs

               time
knitr          1703
pandoc         4054
post-processor    0
pre-processor     1
render         5770
nmrec_0.5.0: 5.809 secs

rendered 4 packages in 29.01 secs

Calling xelatex with minimal input

Here's the minimal tex file used for the hyperfine timings included in the last commit:

\documentclass{article}
\usepackage{graphicx}
\usepackage{fancyhdr}
\pagestyle{fancy}
\setlength\headheight{24pt}
\fancyhead[L]{\includegraphics[width=1.25cm]{mpn_logo.png}}
\title{test}

\begin{document}
\section{a}
\newpage
\section{b}
\newpage
\subsection{b1}
\newpage
\subsection{b2}
\newpage
\section{c}
\newpage
\subsection{c1}
\newpage
\subsection{c2}
\newpage
\subsection{c3}
\end{document}

  25-02.00.00

    Benchmark 1: xelatex logobig
      Time (mean ± σ):      3.625 s ±  0.008 s    [User: 3.409 s, System: 0.233 s]
      Range (min … max):    3.612 s …  3.644 s    10 runs

    Benchmark 2: xelatex logosmall
      Time (mean ± σ):     662.7 ms ±   7.2 ms    [User: 575.2 ms, System: 105.6 ms]
      Range (min … max):   656.3 ms … 681.5 ms    10 runs

    Summary
      'xelatex logosmall' ran
        5.47 ± 0.06 times faster than 'xelatex logobig'

  24-04.03.01

    Benchmark 1: xelatex logobig
      Time (mean ± σ):     952.2 ms ±   8.5 ms    [User: 835.9 ms, System: 133.4 ms]
      Range (min … max):   944.6 ms … 974.9 ms    10 runs

    Benchmark 2: xelatex logosmall
      Time (mean ± σ):     566.4 ms ±   5.5 ms    [User: 471.8 ms, System: 111.8 ms]
      Range (min … max):   560.7 ms … 574.6 ms    10 runs

    Summary
      'xelatex logosmall' ran
        1.68 ± 0.02 times faster than 'xelatex logobig'

[seth127]

This looks good to me @kyleam . Thanks for making this change, and I'm glad it helped the slowdown. Also, the squished aspect ratio on the top logo had been bothering me, so it's nice that it's fixed too.

@barrettk no need to give this an official review, but please read through the PR description for awareness. Thanks.