From patchwork Tue Oct 15 04:38:02 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zev Weiss X-Patchwork-Id: 11194807 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6B50517E1 for ; Thu, 17 Oct 2019 06:04:54 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F1D3721835 for ; Thu, 17 Oct 2019 06:04:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="YVNs4nBT"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=bewilderbeest.net header.i=@bewilderbeest.net header.b="Y+Zh43VJ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F1D3721835 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=bewilderbeest.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 2B7DE844; Thu, 17 Oct 2019 08:04:02 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 2B7DE844 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1571292292; bh=zj6EcfPD5sey3v6wQlEUzHguHeHphQn9Bu3Z6QJstjU=; h=From:To:Date:Cc:Subject:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=YVNs4nBTfFFHvU1u1kQZ0MBXsxftGkf7W+jdXJ03GqVcM5b38ZZtxkmrVE1fr2iL3 zwEbKGnOIFdaTG+gxDPrlJs4K/81CV84w5t3z57syaVyCa2XVc6Ay58rRFsZ0Ah4kO nfDVNXBrG84Y6i+cq3Lx+lA8vcFkyA8vywpD/ryo= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id CF0FCF805FC; Thu, 17 Oct 2019 08:02:20 +0200 (CEST) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa1.perex.cz (Postfix, from userid 50401) id E9557F804AA; Tue, 15 Oct 2019 06:38:22 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on alsa1.perex.cz X-Spam-Level: X-Spam-Status: No, score=-0.1 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=disabled version=3.4.0 Received: from thorn.bewilderbeest.net (thorn.bewilderbeest.net [IPv6:2605:2700:0:5::4713:9cab]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 310D2F800F4 for ; Tue, 15 Oct 2019 06:38:20 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 310D2F800F4 Authentication-Results: alsa1.perex.cz; dkim=pass (1024-bit key) header.d=bewilderbeest.net header.i=@bewilderbeest.net header.b="Y+Zh43VJ" Received: from longray.bewilderbeest.net (unknown [IPv6:2600:6c44:7f:ba22:6b9e:df64:6c86:95f5]) (using TLSv1.2 with cipher DHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: zev) by thorn.bewilderbeest.net (Postfix) with ESMTPSA id 5A058805DB; Mon, 14 Oct 2019 21:38:18 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 thorn.bewilderbeest.net 5A058805DB DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bewilderbeest.net; s=thorn; t=1571114298; bh=ZiBgpE89bCHDT1vBigCVEAT7eFH+AucgPY/ghUKCtoY=; h=From:To:Cc:Subject:Date:From; b=Y+Zh43VJ+tHCsrmwL1tIig7gzR1SMSh9mBCzYN1yKGo/psjpo8K6BZU967ip2LYdJ IfJCXEb//9VOF5r2XAEiTR7uxD2e3ny3WvH69+qlYzC+yJJbpcnVOAnd/Jel1JrAa9 HU9uFiduNfUz+ZTsXh94m5xJAF54XATxaCa+ZUY0= From: Zev Weiss To: alsa-devel@alsa-project.org Date: Mon, 14 Oct 2019 23:38:02 -0500 Message-Id: <20191015043802.23619-1-zev@bewilderbeest.net> X-Mailer: git-send-email 2.23.0 MIME-Version: 1.0 X-Mailman-Approved-At: Thu, 17 Oct 2019 08:02:16 +0200 Cc: Zev Weiss Subject: [alsa-devel] [PATCH] alsactl: avoid needless wakeups in monitor loop. 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" The timeout wasn't really being used for anything; disabling it should reduce idle energy consumption slightly. Signed-off-by: Zev Weiss Reviewed-by: Takashi Sakamoto Tested-by: Takashi Sakamoto --- alsactl/monitor.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/alsactl/monitor.c b/alsactl/monitor.c index 6b090e4f5c92..6d9328d899a4 100644 --- a/alsactl/monitor.c +++ b/alsactl/monitor.c @@ -340,7 +340,7 @@ static int run_dispatcher(int epfd, int sigfd, int infd, struct list_head *srcs, int count; int i; - count = epoll_wait(epfd, epev, max_ev_count, 200); + count = epoll_wait(epfd, epev, max_ev_count, -1); if (count < 0) { err = count; break;