From 96355c79a38032ab4bd880b3b3ff4192ae709795 Mon Sep 17 00:00:00 2001
From: Paul Buetow <paul@buetow.org>
Date: Wed, 20 May 2026 14:37:41 +0300
Subject: task 27: add KindSleep and requested sleep metric

---
 integrationtests/sleep_test.go | 67 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 integrationtests/sleep_test.go

(limited to 'integrationtests')

diff --git a/integrationtests/sleep_test.go b/integrationtests/sleep_test.go
new file mode 100644
index 0000000..a465420
--- /dev/null
+++ b/integrationtests/sleep_test.go
@@ -0,0 +1,67 @@
+package integrationtests
+
+import "testing"
+
+const (
+	sleepParquetDuration    = 6
+	sleepWorkloadStartupEnv = "IOR_WORKLOAD_STARTUP_DELAY_MS=1000"
+)
+
+func TestSleepTracepoints(t *testing.T) {
+	h := newTestHarness(t)
+	h.WorkloadEnv = []string{sleepWorkloadStartupEnv}
+	result, pid, err := h.Run("sleep-syscalls", defaultDuration)
+	if err != nil {
+		t.Fatalf("run scenario sleep-syscalls: %v", err)
+	}
+
+	AssertNoUnexpectedPID(t, result, pid)
+	AssertNoUnexpectedComm(t, result, "ioworkload")
+	AssertEventsPresent(t, result, []ExpectedEvent{
+		{Tracepoint: "enter_nanosleep", Comm: "ioworkload", MinCount: 1},
+		{Tracepoint: "enter_clock_nanosleep", Comm: "ioworkload", MinCount: 1},
+	})
+}
+
+func TestSleepRequestedTimespecInParquet(t *testing.T) {
+	h := newTestHarness(t)
+	h.WorkloadEnv = []string{sleepWorkloadStartupEnv}
+	path, pid, err := h.RunParquet("sleep-syscalls", sleepParquetDuration)
+	if err != nil {
+		t.Fatalf("run sleep-syscalls parquet scenario: %v", err)
+	}
+
+	rows := filterRecordsByPID(readParquetRecords(t, path), uint32(pid))
+	if len(rows) == 0 {
+		t.Fatalf("expected parquet rows for workload PID %d", pid)
+	}
+
+	var sawNanosleep bool
+	var sawClockNanosleep bool
+	for _, row := range rows {
+		switch row.Syscall {
+		case "nanosleep":
+			if row.RequestedSleepNS == 2_000_000 {
+				sawNanosleep = true
+			}
+			if row.Bytes != 0 {
+				t.Fatalf("nanosleep bytes = %d, want 0", row.Bytes)
+			}
+		case "clock_nanosleep":
+			if row.RequestedSleepNS == 3_000_000 {
+				sawClockNanosleep = true
+			}
+			if row.Bytes != 0 {
+				t.Fatalf("clock_nanosleep bytes = %d, want 0", row.Bytes)
+			}
+		}
+	}
+
+	if !sawNanosleep {
+		t.Fatal("expected nanosleep row with RequestedSleepNS=2000000")
+	}
+	if !sawClockNanosleep {
+		t.Fatal("expected clock_nanosleep row with RequestedSleepNS=3000000")
+	}
+}
+
-- 
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