\" HOW-TO:
\"
\" 1. edit in `nroff-mode'
\" 2. groff -p $pic -T ps > $ps             # get PostScript
\" 3. ps2pdf $ps $pdf-large                 # get too-large PDF
\" 4. pdfcrop --margins 12 $pdf-large $pdf  # remove whitespace
\" 5. include in LaTeX with \includegraphics
\"
\" Here is zsh to do part 2-4:
\"
\" #! /bin/zsh
\" pic2pdf () {
\"     local name=$1
\"
\"     # PS
\"     local ps=${name}.ps
\"     groff -p $name -T ps > $ps
\"
\"     # PDF
\"     local large_pdf=${name}-large.pdf
\"     local final_pdf=${name}.pdf
\"     ps2pdf $ps $large_pdf
\"     pdfcrop --margins 12 $large_pdf $final_pdf
\"
\"     # clean
\"     rm $large_pdf $ps
\" }
\"
\" %% include figure inIn LaTeX:
\" %%
\" \usepackage{graphicx}
\" %% ...
\" \begin{center}
\"   \includegraphics{relative/path/to/llc.pdf}
\" \end{center}

.PS
down;
circle radius 0.5 "best-effort core";
arrow 0.2;
box height 0.33 "cache L1"
arrow 0.3;
box width 1.5 height 0.33 "cache L2 = LLC";
line 1 dashed "  bus" ljust;
box width 3 "DRAM" dashed;
.PE