Most tests opened a throwaway panel DB with database.InitDB, which runs the
full AutoMigrate + seed on an empty file every time: ~230ms, and ~850ms under
-race because GORM's reflection-heavy migration is what the detector slows
most. internal/web/service does this in ~550 of its 830 tests, so the CI race
job spent ~10 of its ~14.6 minutes re-migrating empty databases.
internal/database/dbtest.InitDB migrates once per test process, then hands
each test its own copy of that file (~130ms under -race) and registers the
CloseDB cleanup. The copy then goes through InitDB like a panel restart, so
every test still starts from the state a fresh install has. Tests that reopen
an existing file, migrate a hand-built legacy DB or target Postgres keep
calling database.InitDB.
Locally under -race: internal/web/service 626s (last CI run) -> 114s,
internal/sub 246s -> 35s.
Replace strings.Split loops with strings.SplitSeq iterators in the CSV
parsers (reality_scan and the scale-test helpers) and swap a manual map
copy for maps.Copy in the MTProto traffic collector. No behavior change;
these are the fixes the modernize analyzer reports.
The paths that run continuously in production had no scale coverage: the
5s traffic poll (AddTraffic with its auto-renew and depleted scans), the
websocket snapshot the job broadcasts while a browser is connected, the
10s ip-limit job (hasLimitIp LIKE scan + per-email settings parse), a
subscription fetch inside a huge inbound, and the full Xray config build.
New benchmarks reuse the XUI_SCALE_TEST / XUI_DB_TYPE gating and stay
log-only. Sizes default to 10k/100k; XUI_SCALE_SIZES=500000 raises the
ladder without editing code. seedScaleDataset writes inbounds, clients,
client_inbounds and client_traffics directly in one transaction instead
of SyncInbound, so a 500k seed takes seconds. XUI_SCALE_DB_PATH persists
the seeded SQLite file for manual smoke runs against a live panel.
MHSanaei