j3d1/webvirtcloud
1
0
Fork 0
mirror of https://github.com/retspen/webvirtcloud synced 2026-11-09 11:46:49 +00:00
Code Issues Projects Releases Wiki Activity

perf(instances): the VM stats no longer wait a second per poll

Browse source 
Each stats answer carries a signed sample of the counters, bound to the VM,
its compute and UUID. The next poll sends it back and the rates are the
averages since then; a sample from another run of the VM (domain ID),
another host CPU count or device list, or older than 30 s falls back to
one second as before. Windows are measured on the monotonic clock.

Now that a poll is cheap, the Stats tab polls every 5 s like the host
graph, the first time as soon as it opens (pollWhileVisible takes the
delay of the first request).

A counter the host reports as unsupported (-1) or that went back gives no
value instead of 0 or a jump; a NIC without a target keeps its chart, a
pool volume disk is measured, and a disk or NIC attached after the page
loaded no longer stops the other charts. Disk rates are MB/s (they were
MiB/s labelled Mb/s), network Mbit/s; the CPU tooltip names the window.
This commit is contained in:
catborise 2026-10-09 11:22:33 +03:00
parent 27f4845086
commit 24231813d7
8 changed files with 501 additions and 152 deletions
Download patch file Download diff file Expand all files Collapse all files

9
webvirtcloud/js_tests/poll.test.js
View file

@ -92,4 +92,13 @@ assert.strictEqual(answers.length, 8, "each answer reaches onData");
failNext = true; requests[8].finish();
assert.ok(requests[8].error, "the error reaches the page");
advance(10000); assert.strictEqual(requests.length, 10, "polling goes on after an error in onData");
// a first delay of 0: the first request at once, then every interval
poll.stop(); requests[9].finish();
const atOnce = pollWhileVisible(5000, request, onData, 0);
advance(0); assert.strictEqual(requests.length, 11, "first request after firstDelay");
requests[10].finish();
advance(4999); assert.strictEqual(requests.length, 11);
advance(1); assert.strictEqual(requests.length, 12, "then every interval");
atOnce.stop();
console.log("poll.js: all checks passed");