Files
webmail-client/backend/loadtest
lukasandClaude Opus 4.8 3d962a183c sync-v2 §10.7: mail-injecting mode for the soak harness
Optional SOAK_MAIL=1 makes the mock deliver synthetic messages (unique UIDs,
well-formed RFC822) on INBOX polls, so the full parse -> blob -> DB -> index path
actually runs and CPU/RSS move under real throughput. Tunables: SOAK_MAIL_PER_POLL,
SOAK_MSG_KB, SOAK_BIG_MSG_PCT (percent above STREAM_PARSE_MB -> streaming/§8 path).
Blob store + search backend are isolated (temp BLOB_ROOT, SEARCH_BACKEND=pg) and
torn down. Output gains msgs + msg/s columns and a delivered/peak-RSS summary.

RSS check is now a trend (early-third vs late-third mean, not min-to-max) so it
detects a real leak without flaking on transient large-message parse spikes.

Validated: mail run delivers ~4.2 msg/s (incl. 5% 10MB messages); RSS oscillates
123-267MB but its mean is flat (+3.7% over the run) -> no leak, parse memory
bound holds (§8); tier re-promotion on new mail exercised; all §10.7 checks pass.
Full gate green (238 tests).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-19 09:28:48 +02:00
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