[chore] set GOMAXPROCS for collector subprocess (open-telemetry#27449)

This will result in more consistent benchmarks across different environments. Fixes open-telemetry#27429 Signed-off-by: Alex Boten <[email protected]>
jmsnll · Nov 12, 2023 · 7224989 · 7224989
1 parent 629a98d
commit 7224989
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/testbed/testbed/child_process_collector.go b/testbed/testbed/child_process_collector.go
@@ -204,6 +204,9 @@ func (cp *childProcessCollector) Start(params StartParams) error {
 	}
 	// #nosec
 	cp.cmd = exec.Command(exePath, args...)
+	cp.cmd.Env = append(os.Environ(),
+		"GOMAXPROCS=2",
+	)
 
 	// Capture standard output and standard error.
 	cp.cmd.Stdout = logFile