#25461: main event-loop spins consuming 100% of a CPU core at times -------------------------------------------------+------------------------- Reporter: Dhalgren | Owner: dgoulet Type: defect | Status: | accepted Priority: Medium | Milestone: Tor: | 0.3.5.x-final Component: Core Tor/Tor | Version: Severity: Normal | Resolution: Keywords: performance, 034-roadmap-subtask, | Actual Points: 034-triage-20180328, 034-included-20180328 | Parent ID: #25500 | Points: Reviewer: | Sponsor: -------------------------------------------------+-------------------------
Comment (by Dhalgren): seeing CPU saturation today with 0.3.4.1-alpha removed all `tc` police rules with no effect, so not the comment:5 theory TAP handshakes skyrocketed and perhaps it's all TAP handshake CPU consmption also nf_conntrack is dropping connections due to lack of table slots, which implies scanning activity -- Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25461#comment:12> Tor Bug Tracker & Wiki <https://trac.torproject.org/> The Tor Project: anonymity online
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