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Merge pull request #12750 from Budibase/narrow-down-run-js-time 

Move traces around in runJS to further pinpoint where time is spent.
This commit is contained in:
Sam Rose 2024-01-10 10:52:38 +00:00 committed by GitHub
parent 83e9ea0912 e50973c8df
commit ba96b5695e
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 35 additions and 37 deletions
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72
packages/server/src/jsRunner.ts
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@ -12,51 +12,49 @@ export function init() {
const perRequestLimit = env.JS_PER_REQUEST_TIME_LIMIT_MS
let track: TrackerFn = f => f()
if (perRequestLimit) {
tracer.trace<any>("runJS.setupTracker", {}, span => {
const bbCtx = context.getCurrentContext()
if (bbCtx) {
if (!bbCtx.jsExecutionTracker) {
span?.addTags({
createdExecutionTracker: true,
})
bbCtx.jsExecutionTracker =
timers.ExecutionTimeTracker.withLimit(perRequestLimit)
}
const bbCtx = tracer.trace("runJS.getCurrentContext", {}, span =>
context.getCurrentContext()
)
if (bbCtx) {
if (!bbCtx.jsExecutionTracker) {
span?.addTags({
js: {
limitMS: bbCtx.jsExecutionTracker.limitMs,
elapsedMS: bbCtx.jsExecutionTracker.elapsedMS,
},
createdExecutionTracker: true,
})
// We call checkLimit() here to prevent paying the cost of creating
// a new VM context below when we don't need to.
bbCtx.jsExecutionTracker.checkLimit()
track = bbCtx.jsExecutionTracker.track.bind(
bbCtx.jsExecutionTracker
bbCtx.jsExecutionTracker = tracer.trace(
"runJS.createExecutionTimeTracker",
{},
span => timers.ExecutionTimeTracker.withLimit(perRequestLimit)
)
}
})
span?.addTags({
js: {
limitMS: bbCtx.jsExecutionTracker.limitMs,
elapsedMS: bbCtx.jsExecutionTracker.elapsedMS,
},
})
// We call checkLimit() here to prevent paying the cost of creating
// a new VM context below when we don't need to.
tracer.trace("runJS.checkLimitAndBind", {}, span => {
bbCtx.jsExecutionTracker!.checkLimit()
track = bbCtx.jsExecutionTracker!.track.bind(
bbCtx.jsExecutionTracker
)
})
}
}
ctx = tracer.trace("runJS.ctxClone", {}, span => {
return {
...ctx,
alert: undefined,
setInterval: undefined,
setTimeout: undefined,
}
})
tracer.trace("runJS.vm.createContext", {}, span => {
vm.createContext(ctx)
})
ctx = {
...ctx,
alert: undefined,
setInterval: undefined,
setTimeout: undefined,
}
vm.createContext(ctx)
return track(() =>
tracer.trace("runJS.vm.runInNewContext", {}, span =>
vm.runInNewContext(js, ctx, {
timeout: env.JS_PER_EXECUTION_TIME_LIMIT_MS,
})
)
vm.runInNewContext(js, ctx, {
timeout: env.JS_PER_EXECUTION_TIME_LIMIT_MS,
})
)
})
})