I'm thinking of moving from graphviz to mermaid for my diagram sketches because of some mermaid feature which is not available in graphviz. I downloaded mermaid-cli, and with a custom puppeteerConfigFile ( {"executablePath": "/usr/bin/chromium"},), it works.
the mermaid_test.mmd file:
sequenceDiagram
A-->B: Works!
the command I run
time mmdc -i mermaid_test.mmd -o output.pdf --puppeteerConfigFile puppeteerConfigFile.json
the output:
Generating single mermaid chart
real 0m18,590s
user 0m0,946s
sys 0m0,348s
However, it is extremely slow, generating any kind of figure takes around 18 seconds. I had the suspicion that this is due to mmdc starting a new browser for every call, which seems to be the case.
But still, is this time normal/to be expected? I have basically no experience with JS/puppeteer, and I couldn't really find any github tickets or SO discussions related to speed, but I think not, because this is unbearable. When I start chromium itself it also starts pretty much instantly.
Any ideas what is going on here, and how I can make mermaid-cli faster?