vnpy/vnpy_ctp

可否增加缓存每日合约, 加速重启;

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#99 opened on May 21, 2026

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Description

鉴于合约查询耗时很长, 同时每日合约少有变化, 可否考虑增加缓存 (每日第一次启动后刷新并保存当日合约缓存), 加快当日第二次启动的速度;

大部分品种可以用缓存, 如股票和期货主力; 对期货主力合约，这个风险通常较低； 对期权链、新上市合约、当日新增品种，缓存风险会高。

还请 VNPY 作者给予合适的建议, 如果方案通过, 我这边可以着手实现一版, 试试效果; 感激不尽;

Contributor guide

Research direction
Investigate how daily contracts are currently retrieved in the codebase, identify performance bottlenecks, and implement a caching mechanism that stores contracts on first run of the day and loads from cache on subsequent restarts.
Tech stack
python
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Pythoncaching concepts
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60