[tor-relays] Re: Complete list of Tor Metrics keys

[forest via tor-relays <tor-relays@xxxxxxxxxxxxxxxxxxxx>]

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On 2026-11-05 05:20, Tor at 1AEO via tor-relays wrote:
> Testing shows add this dictionary produces 34–36% smaller Tor
> MetricsPort archives using zstd default level 3. Around 50% savings
> using same dictionary with zstd level 19, taking more compression (and
> decompression) time.

I get about 50% extra savings even with compression level 8 (5.53% ratio
with the dictionary vs 10.22% without). It's very useful for my specific
case, since I'm using public key encryption on each Prometheus file
before saving it to disk so that, if my relay is ever compromised, there
will not be any sensitive metrics data lying around in plaintext. But
because it has to encrypt it right away, the compressor's dictionary has
to reinitialize for each file. Having this external dictionary helps.

> https://1aeo.com/blog/tor-metricsport-zstd-dictionary.html
> https://1aeo.com/blog/data/tor-metrics-dict-0.4.9.15.txt

Thank you very much! This performs significantly better than the auto-
generated dictionary that zstd is able to create with training.

Btw, how much of your testing is directed entirely by your LLM agent and
how much are you involved with testing, methodology, writing, etc?

Regards,
forest
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