From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D3D54C4361B for ; Tue, 15 Dec 2020 03:33:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A1669223D6 for ; Tue, 15 Dec 2020 03:33:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727267AbgLODGY (ORCPT ); Mon, 14 Dec 2020 22:06:24 -0500 Received: from mail.kernel.org ([198.145.29.99]:34144 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727231AbgLODGS (ORCPT ); Mon, 14 Dec 2020 22:06:18 -0500 Date: Mon, 14 Dec 2020 19:05:31 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1608001532; bh=UHw1ngin03Ft0zGYyav14zYAFZFf/4etSOYRMeD4rw8=; h=From:To:Subject:In-Reply-To:From; b=mSkHTbBEMlgVHVYXxrZdIuOGcbCfYNzoSqTbOiioxpCvh+frA0/gP1+bGcE/wobwO dufDI3Hu73lN5wspGUR0AHKSSUdX3lardBcija0Zhd9oAiYhvSTNyQl78Bqc5hshN9 WXQ0FYXgcAYTCm5skVeyagZs6DB8MK6QlMkUU9js= From: Andrew Morton To: akpm@linux-foundation.org, jhubbard@nvidia.com, linux-mm@kvack.org, mm-commits@vger.kernel.org, rppt@linux.vnet.ibm.com, shuah@kernel.org, torvalds@linux-foundation.org Subject: [patch 040/200] selftests/vm: 2x speedup for run_vmtests.sh Message-ID: <20201215030531.gikpraFhM%akpm@linux-foundation.org> In-Reply-To: <20201214190237.a17b70ae14f129e2dca3d204@linux-foundation.org> User-Agent: s-nail v14.8.16 Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org From: John Hubbard Subject: selftests/vm: 2x speedup for run_vmtests.sh Each invocation of userfaultfd for "anon" and "shmem" was taking about 6.5 sec to run, contributing to an overall run time of about 22 sec for run_vmtests.sh. Reduce the size and bounce input values to the userfaultfd invocation within run_vmtests.sh, enough to get each invocation down to about 1.0 sec. This should still provide a reasonable smoke test, while staying within a nominal time budget of around 1 second or so per test. And this brings the overall running time of run_vmtests.sh down to 11 second. Link: https://lkml.kernel.org/r/20201026064021.3545418-10-jhubbard@nvidia.com Signed-off-by: John Hubbard Cc: Mike Rapoport Cc: Shuah Khan Signed-off-by: Andrew Morton --- tools/testing/selftests/vm/run_vmtests | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/tools/testing/selftests/vm/run_vmtests~selftests-vm-2x-speedup-for-run_vmtestssh +++ a/tools/testing/selftests/vm/run_vmtests @@ -160,7 +160,7 @@ fi echo "-------------------" echo "running userfaultfd" echo "-------------------" -./userfaultfd anon 128 32 +./userfaultfd anon 20 16 if [ $? -ne 0 ]; then echo "[FAIL]" exitcode=1 @@ -185,7 +185,7 @@ rm -f $mnt/ufd_test_file echo "-------------------------" echo "running userfaultfd_shmem" echo "-------------------------" -./userfaultfd shmem 128 32 +./userfaultfd shmem 20 16 if [ $? -ne 0 ]; then echo "[FAIL]" exitcode=1 _