From patchwork Tue Feb 21 14:41:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steve Sakoman X-Patchwork-Id: 19933 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8831DC64ED6 for ; Tue, 21 Feb 2023 14:42:07 +0000 (UTC) Received: from mail-pf1-f169.google.com (mail-pf1-f169.google.com [209.85.210.169]) by mx.groups.io with SMTP id smtpd.web11.44252.1676990519697908885 for ; Tue, 21 Feb 2023 06:41:59 -0800 Authentication-Results: mx.groups.io; dkim=pass header.i=@sakoman-com.20210112.gappssmtp.com header.s=20210112 header.b=lOfGGYE3; spf=softfail (domain: sakoman.com, ip: 209.85.210.169, mailfrom: steve@sakoman.com) Received: by mail-pf1-f169.google.com with SMTP id cb13so2587599pfb.5 for ; Tue, 21 Feb 2023 06:41:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sakoman-com.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=ZfyXsSgZ29yWeiNFmUUKhco0Tq+gvqz8Q0lXism6amM=; b=lOfGGYE3wOw3kaubLIndOIPMS5DzWVq/iAqDEwbdb2id4JHr4b2KCi6IzaS8VO0sBm coRVpz/CNIvBeNdOPN1jVYZiQQrvoa9OmzEfD2+KUTjlOYhScwxHIQp++PIN8w/+oHwU LeB2Z99dCwoJS6nS3DQ2up2t6m0/Kb0ebTgTBaFNGC1SwSCT0rHar3/NTKLpi8mG/jAF 3HFSIAhsh10q4Gs+8Qxg5wZb2/PlswiDXCcs+d+X+SaActx50dM5QlOtkVMvU/4Cmbb3 XDGRoiNcpB9z57amJpNWuojKEv/urxMNjTGVZxIbH2k9E8ySvsRslesGEPMK72sQFuSH zb2w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ZfyXsSgZ29yWeiNFmUUKhco0Tq+gvqz8Q0lXism6amM=; b=VrxtsF86UqAmF0pPrLXB6TmPQUEGCrbbYgyoZSWvA+2tR8aeuWSJ6FhjVd+i2opUEG dAxJrpNHQsG/TZ97z+713gHnhnxmM1bK4JQ+JkoeKcgXO3GPDAgRpyk6ifqIbRCVzWYv /ZyeKc1oeedPjmyjI/0wlS9OhB1vyx4yDoqLuawFanWDAiTHmJ1Vfoc/KEJnAZpoyjsc tDoYvrf8tas9B24Igf29uqBiNF2eeZmkWKY8qWt/VnNgcewjvmQmrri9mcFRm8PEDzzq uEa/uc3q6v3UQZ0nXSJOm7dKDCcEG6bXx0rPnXX8oU8Knvl2t+THbB4JR/09v8jtej3Z wv2w== X-Gm-Message-State: AO0yUKWkw9pZoIE2HRXKwYMkA90h28wDF2Cv3rgGKJaSDZkRuiHm6Z4m iCpzQzaxghTahFkMCQqmnLRff0ZVG2wQ9GtV/eQ= X-Google-Smtp-Source: AK7set8QuoRwRftRjnQjC/2tLaGEFJ/aT/Csl1c/SlYC8+rAd2TpO0O+V4S+WurFAIqY3vYZ1BfkLg== X-Received: by 2002:a62:38d3:0:b0:5a8:d987:d012 with SMTP id f202-20020a6238d3000000b005a8d987d012mr4248844pfa.11.1676990518722; Tue, 21 Feb 2023 06:41:58 -0800 (PST) Received: from hexa.router0800d9.com (dhcp-72-253-4-112.hawaiiantel.net. [72.253.4.112]) by smtp.gmail.com with ESMTPSA id h5-20020a62b405000000b005ae8e94b0d5sm6151140pfn.107.2023.02.21.06.41.57 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 21 Feb 2023 06:41:58 -0800 (PST) From: Steve Sakoman To: openembedded-core@lists.openembedded.org Subject: [OE-core][kirkstone 22/23] oeqa qemurunner.py: try to avoid reading one character at a time Date: Tue, 21 Feb 2023 04:41:05 -1000 Message-Id: X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Tue, 21 Feb 2023 14:42:07 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/177522 From: Mikko Rapeli Read from serial console with a small delay to bundle data to e.g. full lines. Reading one character at a time is not needed and causes busy looping. Signed-off-by: Mikko Rapeli Signed-off-by: Luca Ceresoli (cherry picked from commit 0049f6757f6f956fb4cc77b3df6a672c20b53cf4) Signed-off-by: Steve Sakoman --- meta/lib/oeqa/utils/qemurunner.py | 2 ++ 1 file changed, 2 insertions(+) diff --git a/meta/lib/oeqa/utils/qemurunner.py b/meta/lib/oeqa/utils/qemurunner.py index aa9e530f1b..925d05a339 100644 --- a/meta/lib/oeqa/utils/qemurunner.py +++ b/meta/lib/oeqa/utils/qemurunner.py @@ -647,6 +647,8 @@ class QemuRunner: except InterruptedError: continue if sread: + # try to avoid reading single character at a time + time.sleep(0.1) answer = self.server_socket.recv(1024) if answer: data += answer.decode('utf-8')