Closed-Loop Performance Engineering

Performance.
End to end.
Verified.

Perfloop helps software teams investigate recurring performance issues, turn runtime evidence into reviewable changes, and verify what actually improved after deploy.

Start with one painful workload you already know. Keep the same system running across the next cases that matter.
Tell us the workload that hurts most. If you want early product access instead, say that too.
ORDER-PROCESSING / serialization path
p99 1,840ms
3 services · 18ms/obj compounding
NIGHTLY-SYNC / segment re-reads
12.4M reads/hr
unchanged data, every night
AUTH-PROXY
Verified ✓
↓73%
AGENT-MCP / serial tool calls
3.2× overhead
5 serial calls → 1 batch
USER-SVC
Verified ✓
↓340ms
SEARCH-API / query fanout
p99 890ms
fan-out 12× per query
PAYMENTS
Baselined
CDN-EDGE
Stable
NOTIFICATION-ENGINE
p99 620ms
trending +14%/wk
DATA-WH
CACHE-LYR
LOGGING
METRICS
SCHEDULER
INGEST-API
Works With Your Stack

Perfloop works with the telemetry and code your team already uses. You do not have to move everything into a new system first.

Telemetry
Datadog
Grafana
Sentry
Pyroscope
Axiom
Kubernetes
CloudWatch
Metrics, traces, logs, profiles, and deploy context stay in the tools you already use.
Code
GitHub
GitLab
Bitbucket
Perfloop proposes changes where your team already reviews and ships code.

Find. Improve. Prove. Remember.

A performance case is the record of one issue: the evidence, the proposed change, the verification plan, and the result.

A hunch, a load test, an alert, a deploy, or a question can all open the same case.
One Performance Case
Hunch Load test Alert Deploy Code change Question
Performance Case
One performance case that keeps the evidence, the change, and the result together.
Perfloop keeps the case at the center so the proposed change, the verified result, and what the team learned all stay attached to the same work.
Proposed Change
A recommended next change when the evidence is strong enough.
Verified Result
Baseline, predicted impact, and verified outcome stay together in one record.
What We Learned
What you learn from each verified improvement helps the next case start faster.
Example Cases
A serialization path costs 18ms per object. Three services amplify it.
This is what a Perfloop case looks like when a cross-service latency issue is traced through code, measured, and turned into a change your team can review.
Performance Case PX-9921
Before, Predicted, Verified
Before
Predicted
Verified
Striped tail shows forecast interval
Evidence Attached

11 minutes, not 3 days.

Perfloop does the investigation, quantifies the impact, and recommends the next change before review starts.

Each completed case adds context, so the next investigation does not start from zero.
Human Path
2-3 days
Dashboards, code spelunking, and the impact sizing all still have to be done by hand.
Investigation starts only when someone finally has time to pick it up.
Code map, impact estimate, and fix path still have to be assembled.
Verification usually becomes a separate follow-up.
Perfloop
11 min
The case, the impact estimate, and the next recommended change are ready before review starts.
One performance case opens with the evidence and code context already attached.
A proposed change is ready when the evidence is strong enough.
The result is verified after deploy instead of turning into separate follow-up work.
Code Map
Paths, files, and configs already attached to the case.
Impact Estimate
The upside is quantified before review starts.
Verification Plan
Before / after validation is part of the work, not a later cleanup step.
Field note
"We sit on all the telemetry and still miss performance wins because nobody has the time to investigate. Perfloop closes that gap."
Seif Lotfy
CTO · Axiom

Where your team's performance work stands. Verified.

Open Cases7
Verified This Month3
Avg Latency Recovered↓ 62% p99
PAYMENTS-API
Baselined · no open cases
DATA-WAREHOUSE-SYNC
12.4M unnecessary S3 reads/hr · case open · fix proposed
USER-SERVICE
p99 ↓340ms · verified in production · case closed
NOTIFICATION-ENGINE
Latency trending +14%/week · fanout under investigation
Who It's For

Built for teams with real performance pain.

Performance is already costing you.
Latency issues, runtime cost, or repeated performance problems are already expensive enough that a real case is worth more than another dashboard guess.
The cost should be clear
You already have signal, or enough to start.
You do not need a perfect telemetry setup first. Perfloop can work from the evidence you already have, show what is still missing, and open the quickest next step to prove it.
Start with the evidence you have
Someone already feels this pain and knows where to start.
A platform lead, infra engineer, or performance-minded IC already feels the pain. The point is not to pretend there is only one issue. It is to give that person a repeatable path from investigation to shipped improvement, then use the same workflow on the next cases that matter.
A clear owner, not another backlog item
Deployment / Security

Fits the way you already ship.

Perfloop works across the repos, telemetry, and systems you choose to include, then follows the review and deployment path you already use.

Access, review, and rollout boundaries are clear before the work begins.
Access
Only the repos, telemetry, and systems you choose to include.
Review
Proposed changes follow your existing review and merge policy.
Guardrails
Sensitive credentials and data controls stay inside your existing guardrails.
How To Start

Start with one real case. Build the workflow for the next ones.

Most teams start with a pilot on one real case. The point is not to solve only that case. It is to prove a workflow your team can keep using on the next performance issues that matter.

Best first step
A real performance case with a clear owner.
Initial access
One repo and one telemetry or profiling source are often enough to get a real answer fast.
Workflow
Investigate, ship the next fix or validation step, and verify what changed.
Start Now
Pilot
Open now
The clearest starting point for teams with a real performance case right now.
Scope
We usually start with one repo and one telemetry or profiling source so the first case gets to a real answer fast.
Output
A performance case your team can review, a proposed change when the evidence is strong enough, and before / after verification you can build on.
Fit
Real performance pain, one concrete place to start, and a clear way to judge the result.
Commercial
30-day fixed-scope engagement. If we keep going, the initial fee credits toward year-one expansion.
Pilot is the starting scope, not the whole value: one real case first, then the same workflow on the next ones.
Request Access →
Get In Early
Early Access
Waitlist
For teams that want the product early and are comfortable starting lighter.
What you get
Code-first analysis with a lighter starting point and clear limits on what can be proven before telemetry is connected.
Today
Hands-on onboarding to start, while more telemetry integrations roll out over time.
Fit
Teams that want the product early and want a say in onboarding and reports.
Next step
Use the same request form and tell us you want early access.
Use this path if you want the product early before taking on a pilot.
Request Access →

Performance.
End to end.
Verified.

Tell us the workload that hurts most. If you want early product access instead, say that too.