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test(terminal): preserve CPU metrics without PSI

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This commit is contained in:
Neil
2026-07-29 07:52:43 -07:00
parent b7efe67df9
commit 83ccd686b0
1 changed files with 10 additions and 4 deletions
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tests/e2e/artificial-opencode-terminal-latency-measurement.ts
+10 -4
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@@ -50,6 +50,15 @@ function median(values: number[]): number {
return sorted[Math.floor(sorted.length / 2)] ?? 0
}
function readLinuxCpuPressureWaitMicros(): number | null {
try {
const match = readFileSync('/proc/pressure/cpu', 'utf8').match(/^some\s+.*\btotal=(\d+)$/m)
return match ? Number(match[1]) : null
} catch {
return null
}
}
function readHostCpuSnapshot(): HostCpuSnapshot | null {
if (process.platform !== 'linux') {
return null
@@ -64,12 +73,9 @@ function readHostCpuSnapshot(): HostCpuSnapshot | null {
if (!cpuFields || cpuFields.length < 4 || cpuFields.some((value) => !Number.isFinite(value))) {
return null
}
const pressureMatch = readFileSync('/proc/pressure/cpu', 'utf8').match(
/^some\s+.*\btotal=(\d+)$/m
)
return {
idleTicks: cpuFields[3] + (cpuFields[4] ?? 0),
pressureWaitMicros: pressureMatch ? Number(pressureMatch[1]) : null,
pressureWaitMicros: readLinuxCpuPressureWaitMicros(),
totalTicks: cpuFields.reduce((total, value) => total + value, 0)
}
} catch {