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Thu, 17 Sep 2020 21:14:11 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 50A41F80212; Thu, 17 Sep 2020 21:14:10 +0200 (CEST) Received: from cable.insite.cz (cable.insite.cz [84.242.75.189]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 29270F8013A for ; Thu, 17 Sep 2020 21:13:59 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 29270F8013A Authentication-Results: alsa1.perex.cz; dkim=pass (1024-bit key) header.d=ivitera.com header.i=@ivitera.com header.b="U3Bs7RfV"; dkim=pass (1024-bit key) header.d=ivitera.com header.i=@ivitera.com header.b="Ha+v9TSQ" Received: from localhost (localhost [127.0.0.1]) by cable.insite.cz (Postfix) with ESMTP id 36E3DA2BACB52; Thu, 17 Sep 2020 21:13:57 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=ivitera.com; s=mail; t=1600370037; bh=+A3GyX3EIuvaRXVq7oYWarw+OjGUzWdNEe9UVXDEnZk=; h=Subject:To:References:From:Date:In-Reply-To:From; b=U3Bs7RfVYkvIThSIUoqndhqbY6/yj9M2hbHtCXaDW+VN4hsvE55dfFhoOu1Q2Fxy7 +1C5fZmMICbF0dAPDQgBOnZ/qTwQeL+Cht7yfxOvXbnxu1h2wFKXb3kM2r4oVMTjmm StpniyCQASSei9Z4lDMlrAga/BOhRarTvRZMb0gY= Received: from cable.insite.cz ([84.242.75.189]) by localhost (server.insite.cz [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id N0faAWPmAmoH; Thu, 17 Sep 2020 21:13:51 +0200 (CEST) Received: from [192.168.105.119] (ip28.insite.cz [81.0.237.28]) (Authenticated sender: pavel) by cable.insite.cz (Postfix) with ESMTPSA id ADE64A2BACB4F; Thu, 17 Sep 2020 21:13:51 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=ivitera.com; s=mail; t=1600370031; bh=+A3GyX3EIuvaRXVq7oYWarw+OjGUzWdNEe9UVXDEnZk=; h=Subject:To:References:From:Date:In-Reply-To:From; b=Ha+v9TSQVDRQrHzuKMnOIJl2bp1cszRZRGyAaFfIxXjq+t26kTub7kAe/S8iG7VrS TczG0P6oHXy05ZIW1Fr6sxEN9Y1TLl8Ynj7FNa+IOzrZQs7BXnJCCsvcLpbY8fuWio lU/nwDQr6FTcr+a7HkPL78nw8wTsg3BGvQ5SrbAA= Subject: Re: pcm_meter.c issue at s16_update To: Go Peppy , alsa-devel@alsa-project.org References: From: Pavel Hofman Message-ID: Date: Thu, 17 Sep 2020 21:13:46 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Hi, Dne 15. 09. 20 v 5:40 Go Peppy napsal(a): > > Just to remind what the issue is - while switching from one web radio > station to another there is a high CPU usage for about 20 seconds. Because > of that high CPU consumption almost all other processes are blocked. 20 seconds is only due to 32bit kernel on RPi. On 64bit machines the boundary value is usually many orders of magnitude larger, basically making the method never finish. With regards, Pavel.