System status floating widget: live CPU/memory/disk usage in the bottom-right corner of the DSH Web UI with threshold colour warnings.
Install
# from GitHub (first run asks for allowBuilds approval — follow the hint, retry)
dsh plugin --profile web add github:AKS1st/dsh-sysmon
Any plugin you install runs third-party code with your own permissions — it can read your files, use your credentials, and reach the network, and tool approvals don’t sandbox it. GitHub-sourced plugins also run build scripts at install time. Only install sources you trust, and pin a commit (github:owner/repo#sha).
README
DSH Web 的系统状态悬浮窗:固定在页面右下角,每 1 秒刷新显示 CPU、内存、磁盘占用率。
CPU 39%/16 MEM 46% DISK 22%
显示规格
- 位置:右下角固定悬浮,
pointer-events: none,不遮挡界面操作。 - 配色:默认浅灰色小字(等宽字体、11px)。
- 刷新:1 秒一次。
阈值规则
| 指标 | 默认(浅灰) | 橙色 | 红色 |
|---|---|---|---|
| CPU(x%/y) | < 90%×核心数 | x ≥ 90%×核心数 | x ≥ 98%×核心数 |
| 内存 | ≤ 80% | > 80% | > 90% |
| 磁盘 | ≤ 80% | > 80% | > 90% |
- CPU:
x%为所有核心使用率之和(可超过 100%),y为总核心数;阈值按总容量比例计算。 - 内存 / 磁盘:超过 80% 橙色、超过 90% 红色。
安装
从 GitHub 仓库安装:
dsh plugin --profile web add github:AKS1st/dsh-sysmon
dsh web
或 clone 到本地后从本地目录安装:
git clone https://github.com/AKS1st/dsh-sysmon.git
cd dsh-sysmon
npm install
npm run build
dsh plugin --profile web add .
dsh web
工作方式
- Host(
src/index.ts):ctx.effect挂一个每秒运行的后台采样器,经ctx.shell采样(/proc/stat、nproc、/proc/meminfo、df -P /),把最新快照写入内存缓存。路由GET /dsh-sysmon/api只返回缓存(亚毫秒、零子进程开销),并拒绝非 GET 方法与跨源浏览器请求。CPU 使用率为相邻两次采样之间的增量(窗口约 1 秒),首次采样显示 0。 - Client(
src/client/index.ts):创建#dsh-sysmon固定定位元素,每 1 秒fetch一次路由,带 in-flight 守卫避免请求重叠;重绘只更新三个数值节点(diff 式)。纯 DOM 实现、零运行时依赖。
已知限制
- 仅 Linux——宿主采集器读取
/proc/stat、/proc/meminfo与df;其他平台需要不同的采集器。 - 仅根文件系统——磁盘占用只报告
/,按挂载点选择暂缓。 - 采样窗口近似——CPU 百分比是相邻两次采样(约 1 秒)间隔内忙时占比,窗口内瞬时突发被平均。
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