The only place these statistics are used is at the end of dumpstats(int severity) where dump_pk_ops() is called after getting a SIGUSR1 signal (but only if severity < LOG_INFO). You're both right that these statistics seem a bit useless, because this info is kind of weird info to keep around, i.e. I'm not sure why we'd want to know how many times we did TLS or how many signatures we verified. (More seemingly useful info about public key operations would be higher-level, e.g. routers we're talking to for which some crypto operation has an anomalous failure rate.)
Trac: Status: new to accepted Milestone: Tor: unspecified to Tor: 0.3.2.x-final Owner: N/Ato isis