From patchwork Wed Apr 2 04:14:29 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ming Lei X-Patchwork-Id: 14035521 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AA58A78F58 for ; Wed, 2 Apr 2025 04:14:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743567288; cv=none; b=BSKpVpiV6CVPLRd33ggfX4Hg6iBwDDKDj5vGYbTf3Zuokcd35Y81Lpfb6ZTsMYwqfRq8BG04WCgaZM71Ok6IUnM0FbHNL7nKRgU5pMmZqui0fNR9xbE6zsm6WuW0nAg7Tmfpt93s6OjlHD8tuB5pAs4herJ0ZRMDbA/5mUvomlU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743567288; c=relaxed/simple; bh=5hONtpmRNUyPK4dP1g+RfmfKZ5ZwrU7tnKN1AR2fMDM=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=TdpRDcRL6lyzKxPcPgVQRZPQ+B2nTAkYbJZlloByYuh3oEJyxyJ/3R+6aHFrFUDANUrL9Vyxu308BYvsb//eNOHYXnz7DTwqfhrOhFWf+8xhDRm4bo6L9WWLS0pm1Fo7DQ01RB5zxb+rz3SDdhaLG1UNx9/mxDqo1JCdN+va0LI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=DOBtLUlh; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="DOBtLUlh" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1743567285; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=A70mzkVoJ9pfEq4RRHkhmn75Iklh4asHbKzosiOmjb0=; b=DOBtLUlhNiuXIJLCuQU8CHvm8XZTB5af9tsLT/1GLax7MDP2CLZdh8SHQlbtYwibYEwU0Y KUSSN4rE7axc9w3cQX0dEUsehmbbTHN4eOGoyRyjD6j5bOsX9+phgnCgxA0T0LGpgWxQbm LQWZcJnDeeXllIIEj26jsrsXlvzEq8k= Received: from mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-316-CCPDpLsQOfiNmhS-YjocxQ-1; Wed, 02 Apr 2025 00:14:40 -0400 X-MC-Unique: CCPDpLsQOfiNmhS-YjocxQ-1 X-Mimecast-MFC-AGG-ID: CCPDpLsQOfiNmhS-YjocxQ_1743567279 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id AE25719560AB; Wed, 2 Apr 2025 04:14:39 +0000 (UTC) Received: from localhost (unknown [10.72.120.17]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 723E5195609D; Wed, 2 Apr 2025 04:14:37 +0000 (UTC) From: Ming Lei To: Shin'ichiro Kawasaki Cc: linux-block@vger.kernel.org, Ming Lei Subject: [PATCH] blktests: add block/039 for test updating nr_hw_queues vs switching elevator Date: Wed, 2 Apr 2025 12:14:29 +0800 Message-ID: <20250402041429.942623-1-ming.lei@redhat.com> Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Add block/039 for covering updating nr_hw_queues and switching elevator. Signed-off-by: Ming Lei --- tests/block/039 | 67 +++++++++++++++++++++++++++++++++++++++++++++ tests/block/039.out | 1 + 2 files changed, 68 insertions(+) create mode 100755 tests/block/039 create mode 100644 tests/block/039.out diff --git a/tests/block/039 b/tests/block/039 new file mode 100755 index 0000000..d29db45 --- /dev/null +++ b/tests/block/039 @@ -0,0 +1,67 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright 2025 Ming Lei +# +# Most of code is copied from block/029 +# +# Trigger blk_mq_update_nr_hw_queues() & elevator switch + +. tests/block/rc +. common/null_blk + +DESCRIPTION="test blk_mq_update_nr_hw_queues() vs switch elevator" +QUICK=1 + +requires() { + _have_fio && _have_null_blk +} + + +modify_io_sched() { + local deadline + local dev=$1 + + deadline=$(($(_uptime_s) + TIMEOUT)) + while [ "$(_uptime_s)" -lt "$deadline" ]; do + for sched in $(_io_schedulers "$dev"); do + echo "$sched" > /sys/block/"$dev"/queue/scheduler > /dev/null 2>&1 + sleep .5 + done + done +} + +modify_nr_hw_queues() { + local deadline num_cpus + + deadline=$(($(_uptime_s) + TIMEOUT)) + num_cpus=$(nproc) + while [ "$(_uptime_s)" -lt "$deadline" ]; do + sleep .1 + echo 1 > /sys/kernel/config/nullb/nullb1/submit_queues + sleep .1 + echo "$num_cpus" > /sys/kernel/config/nullb/nullb1/submit_queues + done +} + +test() { + local sq=/sys/kernel/config/nullb/nullb1/submit_queues + + : "${TIMEOUT:=30}" + _configure_null_blk nullb1 completion_nsec=0 blocksize=512 \ + size=16 memory_backed=1 power=1 && + if { echo 1 >$sq; } 2>/dev/null; then + modify_nr_hw_queues & + modify_io_sched nullb1 & + fio --rw=randwrite --bs=4K --loops=$((10**6)) \ + --iodepth=64 --group_reporting --sync=1 --direct=1 \ + --ioengine=libaio --filename="/dev/nullb1" \ + --runtime="${TIMEOUT}" --name=nullb1 \ + --output="${RESULTS_DIR}/block/fio-output-029.txt" \ + >>"$FULL" + wait + else + echo "Skipping test because $sq cannot be modified" >>"$FULL" + fi + _exit_null_blk + echo Passed +} diff --git a/tests/block/039.out b/tests/block/039.out new file mode 100644 index 0000000..863339f --- /dev/null +++ b/tests/block/039.out @@ -0,0 +1 @@ +Passed