open-webui/backend/open_webui/utils
Classic298 6b655689cc perf: cut repeated per-model work out of model list assembly
get_all_models runs on every models refresh and, without the base-models cache (off by default), on every /api/models request. Several of its costs multiplied by the model count for no reason:

- The active action and filter id sets were derived from get_functions_by_type, which loads full function rows including plugin source and validates them, only for the ids and is_global flags. A generalized column-only query now returns (id, is_global) tuples; the existing filter-specific helper delegates to it.
- Action priorities were computed inside the per-model sort key, constructing a pydantic Valves object per action per model; with global actions in every model's list that was models x actions constructions per refresh. Priorities are now memoized per action.
- Global action and filter item dicts were rebuilt per model from the same modules. The item lists are now built once per function and shallow-copied per model, keeping per-model dicts independent exactly as before (nested values were already shared).
- Deactivated base-model overrides were dropped with models.remove, a linear scan and shift per removal; removals are now collected and filtered out in one identity-based pass, preserving list.remove's exact object semantics.
- RedisDict.set fingerprinted the payload by serializing the already-serialized mapping a second time plus a sha256; a direct dict comparison against the last written mapping has the same skip semantics without re-serializing anything.
- /api/models did tag normalization and profile-image stripping for every model before access filtering discarded the invisible ones, and always evaluated a json.dumps debug f-string; the work now runs only on visible models and the debug line is gated on the log level. The duplicate-id dedup keeps its position before filtering so the effective-model semantics are unchanged.

Benchmark:

| metric | before | after |
| --- | --- | --- |
| model-cache fingerprint, 200 models | 45 us | 1.4 us |
| action priority Valves builds, 200 models x 4 global actions | 0.37 ms (800 builds) | 0.002 ms (4 builds) |
| function-table payload for id sets | full rows incl. source | (id, is_global) tuples |

Functionally verified: the column-only id query matches the full-row query for actions and filters including inactive exclusion, and the fingerprint skip logic writes on first set, skips identical payloads, updates plus deletes stale keys on change and clears on empty, against a scripted fake Redis.
2026-07-23 19:05:32 -04:00
..
access_control perf: batch the file access check queries (#27383) 2026-07-23 17:50:08 -05:00
images refac 2026-07-01 02:48:29 -05:00
mcp refac 2026-06-29 11:56:00 -05:00
telemetry refac(telemetry): drop deprecated semconv SpanAttributes subclass (#25784) 2026-06-29 02:05:34 -05:00
actions.py fix: enforce action availability and model access on the chat action route (#27243) 2026-07-23 12:23:05 -04:00
anthropic.py refac 2026-07-23 04:16:14 -04:00
asgi_middleware.py perf: cut per-request database session overhead (#27385) 2026-07-23 17:49:48 -05:00
audit.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
auth.py refac 2026-07-23 12:48:23 -04:00
automations.py refac 2026-07-16 01:34:50 -04:00
calendar.py feat: add repeat/recurrence dropdown to calendar event modal (#25865) 2026-06-29 02:16:19 -05:00
channels.py refac 2026-03-17 17:58:01 -05:00
chat.py Enforce per-model access on arena fallback before bypass_filter dispatch (#26046) 2026-06-16 22:45:42 +02:00
chat_fork.py refac 2026-07-23 02:54:56 -04:00
code_interpreter.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
context_compaction.py refac 2026-07-23 02:54:56 -04:00
embeddings.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
files.py perf(images): offload validate_url() DNS resolution with asyncio.to_thread (#25825) 2026-06-29 02:31:24 -05:00
filter.py refac 2026-07-23 12:48:14 -04:00
groups.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
headers.py feat: forward client User-Agent to model backends via {{USER_AGENT}} placeholder (#26333) 2026-06-29 05:58:19 -05:00
logger.py chore: format 2026-06-01 13:56:55 -07:00
memory.py refac 2026-07-01 03:35:46 -05:00
middleware.py fix: persist upstream streaming error lines by awaiting the message upsert (#27365) 2026-07-23 17:49:18 -05:00
misc.py refac 2026-06-29 13:03:14 -05:00
models.py perf: cut repeated per-model work out of model list assembly 2026-07-23 19:05:32 -04:00
notifications.py refac 2026-07-16 01:37:21 -04:00
oauth.py refac 2026-07-01 02:57:29 -05:00
payload.py refac 2026-06-29 00:18:40 -05:00
pdf_generator.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
plugin.py refac 2026-07-09 17:28:34 -05:00
rate_limit.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
redis.py fix(redis): use await asyncio.sleep() instead of time.sleep() in async generator (#25823) 2026-06-29 02:25:46 -05:00
response.py refac 2026-06-23 23:35:44 +02:00
sanitize.py refac 2026-03-17 17:58:01 -05:00
security_headers.py perf: stop recomputing static work in per-response ASGI middlewares (#27229) 2026-07-23 12:29:01 -04:00
session_pool.py refac: modernize type annotations (PEP 604 / PEP 585) 2026-05-12 17:10:15 +09:00
subagents.py chore: format 2026-07-20 22:11:42 -04:00
task.py refac 2026-06-19 00:16:06 +02:00
terminals.py refac 2026-07-10 18:32:21 -05:00
timers.py chore: format 2026-07-20 22:11:42 -04:00
tools.py refac 2026-07-16 00:58:34 -04:00
validate.py chore: format 2026-06-01 13:56:55 -07:00
valves.py refac 2026-06-29 12:29:10 -05:00
webhook.py refac 2026-06-29 13:03:14 -05:00