fix: sqlite nocgo with ionice and parallel flag (#112849)

* chore: log test DB path

* fix: run sqlite_nocgo with parallel 4 and ionice to reduce IO operations

.github/workflows/pr-test-integration.yml

@@ -101,7 +101,8 @@ jobs:
         run: |
           set -euo pipefail
           readarray -t PACKAGES <<< "$(./scripts/ci/backend-tests/pkgs-with-tests-named.sh -b TestIntegration | ./scripts/ci/backend-tests/shard.sh -N"$SHARD" -d-)"
-          CGO_ENABLED=0 go test -tags=sqlite -timeout=8m -run '^TestIntegration' "${PACKAGES[@]}"
+          # ionice since tests are IO intensive
+          CGO_ENABLED=0 ionice -c2 -n7 go test -p=4 -tags=sqlite -timeout=8m -run '^TestIntegration' "${PACKAGES[@]}"
   mysql:
     needs: detect-changes
     if: needs.detect-changes.outputs.changed == 'true'

pkg/tests/testinfra/testinfra.go

@@ -103,7 +103,7 @@ func StartGrafanaEnv(t *testing.T, grafDir, cfgPath string) (string, *server.Tes
 	dbCfg.Key("password").SetValue(testDB.Password)
 	dbCfg.Key("name").SetValue(testDB.Database)
 
-	t.Log("Using test database", "type", testDB.DriverName, "host", testDB.Host, "port", testDB.Port, "user", testDB.User, "name", testDB.Database)
+	t.Log("Using test database", "type", testDB.DriverName, "host", testDB.Host, "port", testDB.Port, "user", testDB.User, "name", testDB.Database, "path", testDB.Path)
 
 	env, err := server.InitializeForTest(ctx, t, t, cfg, serverOpts, apiServerOpts)
 	require.NoError(t, err)