fix(stats): bound the gpu breakdown to a date range and drop the per-row gpu count subqueries - #3811
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…row gpu count subqueries GET /v1/gpu-breakdown scanned the whole provider snapshot history and returned every day since 2024 (~15k rows, 42-50 s). It now takes startDate/endDate (default: last 30 days, max 366), pushes the window into the snapshot subquery so the isLastSuccessOfDay partial index applies, computes the per-node gpu count once with a lateral join, and returns gpuUtilization as a number as the schema already declared. Callers that want history must now page through it in slices of at most 366 days.
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Included review availability: Your plan provides up to 5 included reviews per hour; 1 remains after this review. 📝 WalkthroughWalkthroughChangesThe GPU breakdown endpoint now supports validated inclusive date ranges. It applies UTC defaults, filters daily repository results, separates cache entries by date, updates functional coverage, and documents the new query parameters and response semantics. GPU breakdown date ranges
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: ⚪ Minimal · up to The GPU breakdown endpoint now uses bounded inclusive date ranges, documents validation failures, and updates generated API contracts. No merge-blocking current-head risk is identified. ✨ Finishing Touches📝 Generate docstrings
🧪 Generate unit tests (beta)
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #3811 +/- ##
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- Coverage 81.10% 80.49% -0.62%
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Files 1227 1130 -97
Lines 33376 30875 -2501
Branches 8163 7668 -495
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- Hits 27071 24854 -2217
+ Misses 5572 5308 -264
+ Partials 733 713 -20
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Inline comments:
In `@apps/api/src/gpu/http-schemas/gpu.schema.spec.ts`:
- Line 22: Update the test cleanup using a setup() helper so it restores the
environment correctly: delete process.env.TZ when originalTimezone is undefined,
otherwise restore the saved timezone value.
In `@apps/api/src/gpu/http-schemas/gpu.schema.ts`:
- Line 79: Update the default start-date calculation near startDate and the
maximum-span validation to account for inclusive calendar dates: subtract
DEFAULT_BREAKDOWN_WINDOW_DAYS - 1 when deriving the default, and reject spans
greater than or equal to MAX_BREAKDOWN_WINDOW_DAYS. Preserve the existing
date-range behavior otherwise.
In `@apps/api/src/gpu/repositories/gpu.repository.ts`:
- Line 97: Update the snapshot date bucketing in the query around DISTINCT ON to
use DATE(ps."checkDate" AT TIME ZONE 'UTC') consistently in DISTINCT ON, SELECT,
and ORDER BY, then add a regression test covering timestamps near midnight UTC.
In `@apps/api/src/gpu/routes/gpu.router.ts`:
- Around line 142-144: Update the route’s responses declaration alongside the
existing 200 entry to include the HTTP 400 validation-error response, using the
established validation error body schema if available. Keep the existing
successful response contract unchanged.
In `@packages/console-api-types/src/schema.d.ts`:
- Line 5760: Add the endpoint’s documented 400 validation-error response to the
OpenAPI source for the daily GPU breakdown request, covering invalid, reversed,
and oversized date ranges, then regenerate the generated declaration file so its
response types expose both the existing 200 result and the public 400 error
contract.
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apps/api/src/gpu/http-schemas/gpu.schema.spec.tsapps/api/src/gpu/http-schemas/gpu.schema.tsapps/api/src/gpu/repositories/gpu.repository.tsapps/api/src/gpu/routes/gpu.router.tsapps/api/src/gpu/services/gpu.service.spec.tsapps/api/src/gpu/services/gpu.service.tsapps/api/swagger/openapi.jsonapps/api/test/functional/gpu.spec.tspackages/console-api-types/src/schema.d.ts
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…are its 400 The default window now covers exactly 30 dates and the cap accepts at most 366, so 2024-01-01 to 2025-01-01 (367 dates) is rejected instead of scanning a day past the stated maximum. The route declares the 400 it already returned for invalid ranges, and openapi.json, the console-api-types schema and the docs snapshot are regenerated from it. The schema spec restores an unset TZ with vi.unstubAllEnvs instead of writing the string "undefined" into process.env.
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Beyond the inline finding I raised earlier on this PR, the new commit (3a3eb81) fixes exactly that off-by-one: countInclusiveDays now counts inclusive calendar days and the refine caps at 366 inclusive days, matching the repository's window bounds, with new spec cases covering the 366/367-day boundary. I checked the new 400 response added to the router and it follows the same description-only convention used elsewhere in this file (and in bid-screening/attestation routers), so no inconsistency there.
Extended reasoning...
The only open item from my prior review of this PR was the off-by-one in the 366-day cap: spanInDays measured the gap between date boundaries while the query/docs treated the range as inclusive, so a 366-gap-day request pulled 367 calendar days. Commit 3a3eb81 replaces the helper with countInclusiveDays ((end-start)/MS_PER_DAY + 1) and changes the refine to check windowDays <= MAX_BREAKDOWN_WINDOW_DAYS, which now matches the repository's windowStart/windowEndExclusive query bounds exactly. New unit tests (accepts a range of exactly 366 days, rejects a range of 367 days) directly cover the previously-buggy boundary. I additionally checked the newly added 400 response entry in gpu.router.ts against the rest of the codebase's pattern for description-only error responses (bid-screening.router.ts, attestation.router.ts, and the existing 400 in this same file) and found it consistent, so no new OpenAPI issue there. No other candidate issues were investigated this run since the diff since my last review is limited to this fix plus its router/openapi/test updates.
…row gpu count subqueries (#3811) * fix(stats): bound the gpu breakdown to a date range and drop the per-row gpu count subqueries GET /v1/gpu-breakdown scanned the whole provider snapshot history and returned every day since 2024 (~15k rows, 42-50 s). It now takes startDate/endDate (default: last 30 days, max 366), pushes the window into the snapshot subquery so the isLastSuccessOfDay partial index applies, computes the per-node gpu count once with a lateral join, and returns gpuUtilization as a number as the schema already declared. Callers that want history must now page through it in slices of at most 366 days. * fix(stats): count the gpu breakdown window in inclusive days and declare its 400 The default window now covers exactly 30 dates and the cap accepts at most 366, so 2024-01-01 to 2025-01-01 (367 dates) is rejected instead of scanning a day past the stated maximum. The route declares the 400 it already returned for invalid ranges, and openapi.json, the console-api-types schema and the docs snapshot are regenerated from it. The schema spec restores an unset TZ with vi.unstubAllEnvs instead of writing the string "undefined" into process.env.
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Why
GET /v1/gpu-breakdownis the slowest route on the API. In prod an unfiltered call takes 42 to 50 seconds, a vendor+model call 12 to 15 seconds, and every response is the full history since February 2024 as one row per day, vendor and model, about 15k rows. Nothing in this repo calls the route. The traffic is external scripts and curl, roughly 180 calls a week, spread out enough that the 5 minute in-process cache almost never hits.The query had no date bound. The
dayscan and theDISTINCT ON (hostUri, DATE(checkDate))overproviderSnapshotcovered the whole table, so the partial index oncheckDate WHERE isLastSuccessOfDaywas never used. It also ran the same correlatedCOUNT(*)overproviderSnapshotNodeGPUtwice for every GPU row.What
The route takes
startDateandendDate(YYYY-MM-DD), both inclusive. Without them it returns the last 30 days, exactly 30 dates ending today. The span is capped at 366 dates and anything wider, or a start after the end, is a 400, which the route now declares in the OpenAPI spec. This is the same shape/v1/usage/historyuses, except that the default and the cap here count inclusive calendar days rather than the gap between the two dates.The window is pushed into the snapshot subquery so the partial index applies, and the per node GPU count is computed once with a lateral join instead of two correlated subqueries.
gpuUtilizationnow comes back as a number; the schema and the OpenAPI spec already saidnumber, but the Postgresnumericwas serialised as"100.00".openapi.json, theconsole-api-typesschema and the docs snapshot are regenerated. Unrelated spec drift already on main (reclaimNotifiedAt) was left out on purpose.BREAKING CHANGE for external callers: a call with no dates returns 30 days instead of the whole history, and
gpuUtilizationis a number instead of a string. History is still available by passingstartDate/endDatein slices of up to 366 days.Tests: new schema spec, a cache key case in the service spec, and functional cases for the default window, an explicit range, vendor and model filters and both 400s.
Measured after the fact on a copy of the production database (715 GB, snapshots through 2026-03-12), two runs per window with the session pinned to UTC:
The 30-day default is fast, so the change is a clear win for the common call. Windows past roughly 120 days flip to hashing the node and GPU tables whole, which is a planner statistics problem rather than a query one; #3836 fixes it and brings the 366-day window to 224 ms warm on the same copy.
Summary by CodeRabbit
New Features
Bug Fixes
Documentation