From 450a09b152063af4faefc20fdce61d6475d1dc49 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@scylladb.com>
Date: Thu, 26 Feb 2026 15:48:55 +0200
Subject: [PATCH] test: tools: restrict embedded perf tests from taking over
 host

The perf-simple-query tests were not restricted on CPU count,
so on a 96-CPU machine, they would run on 96 CPUs, and time out
in debug mode.

All restrict memory usage and add --overprovisioned so that
pinning is disabled. Apply that to all tests.

Closes scylladb/scylladb#28821
---
 test/cluster/test_tools_perf.py | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/test/cluster/test_tools_perf.py b/test/cluster/test_tools_perf.py
index df5411fe48..7951406751 100644
--- a/test/cluster/test_tools_perf.py
+++ b/test/cluster/test_tools_perf.py
@@ -34,7 +34,7 @@ def scylla_path(build_mode):
 
 @pytest.mark.parametrize("mode", ["read"])
 async def test_perf_simple_query(scylla_path, mode, tmp_path):
-    args = [scylla_path, "perf-simple-query", "--duration", "1", "--partitions", "1000", "--stop-on-error", "false"]
+    args = [scylla_path, "perf-simple-query", "--duration", "1", "--partitions", "1000", "--stop-on-error", "false", "--memory", "2G", "--smp", "2", "--overprovisioned"]
     await run(args)
 
 
@@ -51,7 +51,9 @@ async def test_perf_cql_raw(scylla_path, tmp_path, workload):
         '--seed-provider-parameters', 'seeds=' + host,
         "--workload", workload,
         "--duration", "1",
+        "--memory", "2G",
         "--smp", "2",
+        "--overprovisioned",
         "--workdir", str(tmp_path),
         "--developer-mode", "1",
         "--partitions", "1000",
@@ -79,7 +81,9 @@ async def test_perf_alternator(scylla_path, tmp_path, workload):
         "--alternator-write-isolation", "only_rmw_uses_lwt",
         "--workload", workload,
         "--duration", "1",
+        "--memory", "2G",
         "--smp", "2",
+        "--overprovisioned",
         "--workdir", str(tmp_path),
         "--developer-mode", "1",
         "--partitions", "1000",
@@ -102,7 +106,9 @@ async def test_perf_cql_raw_remote(scylla_path, tmp_path, workload, manager):
         "--workload", workload,
         "--duration", "1",
         "--remote-host", host,
+        "--memory", "1G",
         "--smp", "1",
+        "--overprovisioned",
         "--partitions", "1000",
         "--continue-after-error", "true"
     ]
@@ -123,7 +129,9 @@ async def test_perf_alternator_remote(scylla_path, tmp_path, workload, manager):
         "--workload", workload,
         "--duration", "1",
         "--remote-host", host,
+        "--memory", "1G",
         "--smp", "1",
+        "--overprovisioned",
         "--partitions", "1000",
         "--continue-after-error", "true"
     ]