Top-heavy flamegraphs hide the subtitle

[itamarst]

If there's too long of a line at the top of the graph, the subtitle is hidden, probably because it ends up being covered up

For example:

1. If the top line is very long: echo "hello 1" | inferno-flamegraph --subtitle "Hello! this is a subtitle" > regular.svg

2. If the top line is very long because it's an inverted graph: cat flamegraph/test/results/perf-java-stacks-01-collapsed-pid.txt | inferno-flamegraph --subtitle "Hello! this is a subtitle" --inverted > inverted.svg

[jonhoo]

Interesting.. Is this also an issue in the original flamegraph implementation?

[itamarst]

Looks like:

1. The first variant (very long first line) DTRT in flamegraph.pl, i.e. the subtitle appears.
2. Inverted ("icicle") mode in flamegraph.pl overwrites the subtitle.

[jonhoo]

Hmm, curious. Might be worth digging into where the difference in the final SVG lies. I'm pretty swamped these days, but would be happy to take a look at a PR!

[itamarst]

I'll see what I can do, thanks for the quick response.