From patchwork Thu Jul 25 16:25:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anubhav Shelat X-Patchwork-Id: 814546 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 3AAFD19D890 for ; Thu, 25 Jul 2024 16:25:50 +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=1721924752; cv=none; b=LQpZja8j/finl0XgB+bmx45HkPPpG7EGNcoXC9lKw81YExmYOJh/jFO+wFUhah37EzonwdA2ogai8BXPkbg/jm5YI6AFKova0DLW1YIfbVO5thFsKG3squ4jg2aoi+U5eTj3wOtygWxWSfSIqOgmYr0it18PwBURy1IbX1DG7WI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721924752; c=relaxed/simple; bh=B4xgtQlcRKYnr8/ocu9U8XMk4RpQ2oxFuCB/PxMNVgM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=IjFfGsK87QCMHYzBp6hpPopX9nRwxKg9zRgHrCOjHiv9xh4KIClVaPo8ZLX3pu4tCDNj7upZ3hQAQ2ZcA0Oz33hkrJF1e7JKJsRqbdUqjSdgLpeSfOwV3ApIc/7fmAdJ+1BfXEiTHRNcq+D+O6nJmuqGbOkznkzB/HwLck8sCGI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none 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=FtgAHkM2; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none 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="FtgAHkM2" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1721924749; 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: in-reply-to:in-reply-to:references:references; bh=dUuNQMfLZguj2UmunTIREvsEdozp0VZwJCr6oj8hI+A=; b=FtgAHkM2d0fjEzgKcu7ZBdZaq1glGhpl4aSiz1U4wdC30biRJPpB4sioKjjni4bfiyqzBj aksjOWjliDzaYlFNc6j+WGxe5h+/tBACTU7CmL/cvjH93GV3GwDSOqc1snatVFEPQ0Naxt YB7kGIpn+GnmhK6+IKxIrNDqxf8DN6g= Received: from mx-prod-mc-05.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-172-OidgoSY7O-yl4DfJk6LPKA-1; Thu, 25 Jul 2024 12:25:48 -0400 X-MC-Unique: OidgoSY7O-yl4DfJk6LPKA-1 Received: from mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.40]) (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-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id F0958195609E for ; Thu, 25 Jul 2024 16:25:46 +0000 (UTC) Received: from ashelat-na.remote.csb (unknown [10.22.64.15]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 9259B195605A; Thu, 25 Jul 2024 16:25:45 +0000 (UTC) From: Anubhav Shelat To: linux-rt-users@vger.kernel.org Cc: jkacur@redhat.com, kcarcia@redhat.com, Anubhav Shelat Subject: [PATCH v4] tuna: add options to get idle state info Date: Thu, 25 Jul 2024 12:25:31 -0400 Message-ID: <20240725162532.1890461-2-ashelat@redhat.com> In-Reply-To: <20240725162532.1890461-1-ashelat@redhat.com> References: <20240725162532.1890461-1-ashelat@redhat.com> Precedence: bulk X-Mailing-List: linux-rt-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 Added a function in cpupower.py to get idle state info by executing cpupower, and added an option in tuna to run that function from the cstate subcommand. Signed-off-by: Anubhav Shelat --- tuna-cmd.py | 12 +++++++++--- tuna/cpupower.py | 18 ++++++++++++------ 2 files changed, 21 insertions(+), 9 deletions(-) diff --git a/tuna-cmd.py b/tuna-cmd.py index c6ef8bae09a3..b6f94182241f 100755 --- a/tuna-cmd.py +++ b/tuna-cmd.py @@ -118,6 +118,8 @@ def gen_parser(): "priority": dict(default=(None, None), metavar="POLICY:RTPRIO", type=tuna.get_policy_and_rtprio, help="Set thread scheduler tunables: POLICY and RTPRIO"), "background": dict(action='store_true', help="Run command as background task"), "cstate": dict(dest='cstate', metavar='CSTATE', help='Set cpus in IDLE-LIST to a specific cstate'), + "info": dict(dest='info', default=False, action='store_true', + help='Display information about available CPU idle states.'), } parser = HelpMessageParser(description="tuna - Application Tuning Program") @@ -223,6 +225,7 @@ def gen_parser(): cstate.add_argument('-c', '--cpus', **MODS['cpus']) cstate.add_argument('-i', '--cstate', **MODS['cstate']) + cstate.add_argument('--info', **MODS['info']) what_is.add_argument('thread_list', **POS['thread_list']) @@ -671,9 +674,12 @@ def main(): print("Valid log levels: NOTSET, DEBUG, INFO, WARNING, ERROR") print("Log levels may be specified numerically (0-4)\n") - if args.cstate: - cpupower_controller = cpupower.Cpupower(str(args.cpu_list).strip('[]').replace(' ', ''), args.cstate) - cpupower_controller.enable_idle_state() + if args.command == 'cstate': + if args.info: + cpupower.Cpupower.get_idle_info() + elif args.cstate: + cpupower_controller = cpupower.Cpupower(str(args.cpu_list).strip('[]').replace(' ', ''), args.cstate) + cpupower_controller.enable_idle_state() if 'irq_list' in vars(args): ps = procfs.pidstats() diff --git a/tuna/cpupower.py b/tuna/cpupower.py index ecb82536d404..0aa9243b7838 100644 --- a/tuna/cpupower.py +++ b/tuna/cpupower.py @@ -59,6 +59,9 @@ class Cpupower: f.close() print('Idle state configuration restored') + def get_idle_info(): + subprocess.call(['cpupower', 'idle-info']) + if __name__ == '__main__': parser = argparse.ArgumentParser() @@ -66,15 +69,18 @@ if __name__ == '__main__': help='List of cpus to perform cpupower-idle-set operation on.') parser.add_argument('-s', '--cstate', default='', help='Specify cstate to enable/disable') - + parser.add_argument('--info', default=False, action='store_true', help='Get idle state information') + args = parser.parse_args() print(args) cpulist = args.cpu_list cstate = args.cstate - cpupower = Cpupower(cpulist, cstate) - - cpupower.enable_idle_state() - time.sleep(10) - cpupower.restore_cstate() + if (cstate): + cpupower = Cpupower(cpulist, cstate) + cpupower.enable_idle_state() + time.sleep(10) + cpupower.restore_cstate() + elif (args.info): + Cpupower.get_idle_info()