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https://github.com/rcourtman/Pulse.git
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pulse-triage[bot]
40 lines
1.2 KiB
Go
40 lines
1.2 KiB
Go
package api
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import (
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"math"
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"runtime"
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"testing"
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)
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func TestBuildSystemDiagnosticSeparatesHeapRuntimeAndRSS(t *testing.T) {
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const mib = uint64(1024 * 1024)
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memStats := runtime.MemStats{
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Alloc: 20 * mib,
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HeapInuse: 24 * mib,
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HeapIdle: 40 * mib,
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HeapReleased: 16 * mib,
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Sys: 80 * mib,
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}
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got := buildSystemDiagnostic(memStats, 96*mib, int64(230*mib))
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if got.MemoryMB != 20 || got.HeapAllocMB != 20 {
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t.Fatalf("live heap = legacy %d explicit %d, want 20", got.MemoryMB, got.HeapAllocMB)
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}
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if got.HeapInUseMB != 24 || got.HeapIdleMB != 40 || got.HeapReleasedMB != 16 {
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t.Fatalf("heap breakdown = in-use %d idle %d released %d", got.HeapInUseMB, got.HeapIdleMB, got.HeapReleasedMB)
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}
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if got.RuntimeRetainedMB != 64 {
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t.Fatalf("runtime retained = %d, want Sys - HeapReleased = 64", got.RuntimeRetainedMB)
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}
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if got.ProcessRSSMB != 96 || got.GCMemoryLimitMB != 230 {
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t.Fatalf("process/limit = RSS %d limit %d, want 96/230", got.ProcessRSSMB, got.GCMemoryLimitMB)
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}
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}
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func TestBuildSystemDiagnosticOmitsUnlimitedMemoryLimit(t *testing.T) {
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got := buildSystemDiagnostic(runtime.MemStats{}, 0, math.MaxInt64)
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if got.GCMemoryLimitMB != 0 {
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t.Fatalf("unlimited GC memory limit = %d, want omitted zero", got.GCMemoryLimitMB)
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}
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}
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