test: Only submit raw data for snapshot test, not average

Before emitting raw data, we only submitted the average to display on
our dashboards. However, ever since submitting the raw data, we could
have just instructed cloudwatch to compute averages from that, without
needing to also submit the averages. So actually switch to doing that.

Also rename network_ab's "latency" metric to "ping_latency" for backward
compatibility.

Signed-off-by: Patrick Roy <[email protected]>

tests/integration_tests/performance/test_network_ab.py

@@ -3,7 +3,6 @@
 """Tests the network latency of a Firecracker guest."""
 
 import re
-import statistics
 
 import pytest
 
@@ -86,10 +85,8 @@ def test_network_latency(microvm_factory, guest_kernel, rootfs, metrics):
         {"performance_test": "test_network_latency", **vm.dimensions}
     )
 
-    metrics.put_metric("latency_Avg", statistics.mean(samples), "Milliseconds")
-
     for sample in samples:
-        metrics.put_metric("latency", sample, "Milliseconds")
+        metrics.put_metric("ping_latency", sample, "Milliseconds")
 
 
 class TCPIPerf3Test(IPerf3Test):

tests/integration_tests/performance/test_snapshot_ab.py

@@ -2,7 +2,6 @@
 # SPDX-License-Identifier: Apache-2.0
 """Performance benchmark for snapshot restore."""
 import shutil
-import statistics
 import tempfile
 from dataclasses import dataclass
 from functools import lru_cache
@@ -159,7 +158,5 @@ def test_restore_latency(
         }
     )
 
-    metrics.put_metric("latency_Avg", statistics.mean(samples), "Milliseconds")
-
     for sample in samples:
         metrics.put_metric("latency", sample, "Milliseconds")