Live from Tha Shed // 2026-08-08
28 Minutes vs. 2 Hours: AI Incident Triage Meets Ruby’s YJIT Leap
Two things happened in DevOps this year that are easy to miss in isolation but matter a lot together: autonomous agents are now closing incidents in under 30 minutes, and Ruby quietly stopped being “the slow one.” Click through both below — this one’s interactive.
Step 0 of 5 — press “Run next step”
120min → 28min
MTTR before/after AI triage agent, Western Governors University
Source: AWS DevOps Agent case study, 2026
35,000+ incidents
Mitigated by Microsoft’s internal fleet of 1,300+ SRE agents
Source: Azure SRE Agent GA, March 2026
50% faster
Reported resolution speed-up from PagerDuty’s AI agent suite
Source: PagerDuty AI agent suite launch
Try this today
Most “AI incident response” wins right now come from wiring an agent to existing signals — alerts, runbooks, and deploy history — not building anything novel. A minimal webhook-triggered triage config looks like this:
on_alert:
source: [cloudwatch, pagerduty, datadog]
actions:
– correlate: {window: “15m”, scope: “service+deploys”}
– match_runbook: {confidence_min: 0.7}
– if: runbook_found
then: propose_remediation
else: page_human
– always: draft_postmortem_notes
Adjust the inputs above to see estimated relative throughput.
Try this today
YJIT ships inside Ruby 3.1+ but isn’t on by default everywhere. Turning it on is a one-line change — the real cost is testing your gem set for edge cases:
# Enable YJIT (Ruby 3.3+, recommended for prod)
RUBYOPT=”–yjit” bundle exec rails server
# Or in config/boot.rb
RubyVM::YJIT.enable if defined?(RubyVM::YJIT)
92% faster
YJIT 3.4 vs. the plain CRuby interpreter, Shopify’s x86-64 benchmark suite
Source: Rails at Scale, Shopify Eng
15–30% faster
Real-world production Rails app speedups reported after enabling YJIT
Source: Ruby 3.4 YJIT performance guides, 2026
1.2–1.5×
Python’s edge over Ruby in raw CPU-bound loops — the gap Ruby is closing
Source: Python vs Ruby performance comparison, 2026
Sources
- AWS — DevOps Agent: accelerating incident response
- AWS re:Post — Western Governors University MTTR case study
- Forbes — AWS deploys AI agents for DevOps and security
- Microsoft Azure — SRE Agent general availability, 1,300+ internal agents, 35,000+ incidents mitigated (March 2026)
- PagerDuty — end-to-end AI agent suite launch, incident resolution speed-up
- Shopify Rails at Scale — YJIT 3.4: even faster and more memory-efficient
- Ruby core docs — YJIT documentation, Ruby 3.4
- NexusBro — Python vs Ruby performance comparison, 2026
Built interactively for tha-shed.com — numbers are illustrative estimates based on published benchmarks, not a guarantee for your workload. Always benchmark your own stack.
