From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on sa.local.altlinux.org X-Spam-Level: X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM autolearn=ham autolearn_force=no version=3.4.1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-transfer-encoding:content-language; bh=iA6lGmHQQxQzPUzKh7TSZDqkjPhyYftY8QsbfjgZCKo=; b=EUlZlRZrQXzfkSUnF/XESFXkr2E22Tku1CceTlJtNiCzEUxufZA5LoXLJ+RhBi2jmi gIthKJetgmo3DaqbwGLYTFqKYAZ9xwB++ivylvdVksF4lMrINMmilPIYPzUP3o6ySoWL ELTd0u0BOtHWTXjbjQUI+/efGOjmEVfOdhyO0JelSwdqmzp6Q34oXFedaz9pa2aYuBvq L8xvcVC/1OIIa/IHpeE4MiD24IBshxyuhDVrLKLy9ZOkwNN0xCOufS3ihqNS4g0lQQ4y F7k4BrAcTsfmnSCSsgzromMRvDspKFVS1oq64AYNSsn1LyOFZkdpKpGYdaTj1xAbez8a v6qw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=iA6lGmHQQxQzPUzKh7TSZDqkjPhyYftY8QsbfjgZCKo=; b=IuFtY74arDTAZADkm+RCw5VqprOHmmu0mxeuwZBhvz6OJWiBn3IZyoUY6D+LlipVVW nl4Ql1OPeClA32C5/EV5ut8GAM71Bqy3he+BNx3z5OHickyG4dwH3ApvjKiFIojm4kCd IkOOZ0FtSi5PqsnwEoR5rLluud7pRMc6V2V7rYq4qS7X+sK9vztWDl3zwaxblmUVtiIj bpVROvZmpOuGsyaK5E9lN0iONcBGBreKSbGf6iJv3FWA8TaEKalbY/tXAwf3XjryK7J7 iI6CqllJi8Nu7wFipL3KRqnDUjvrsf1/E9KRq83CMvoB7zb7RbHRYowO04ilw5RY2rAU 8paA== X-Gm-Message-State: ANhLgQ1MT4cMwlJ6It2agq2uNw7QepvlbUZnxF/5l3WPYsJwKTIpkIyO MZkyAPG8FABqOZa79VlhD3xzbkbO X-Google-Smtp-Source: ADFU+vvgcqlLUM+/BNXJ60vYmZLapq12/es8YCqPx2/TwARK1vAqpTFirh9Se/AKuWqxMaYjYv1SDw== X-Received: by 2002:a2e:95da:: with SMTP id y26mr3227145ljh.101.1584649604096; Thu, 19 Mar 2020 13:26:44 -0700 (PDT) To: devel@lists.altlinux.org References: <1276556985.742599.1584648710620.JavaMail.zimbra@taf.ru> From: Leonid Krivoshein Message-ID: Date: Thu, 19 Mar 2020 23:26:42 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <1276556985.742599.1584648710620.JavaMail.zimbra@taf.ru> Content-Type: text/plain; charset=koi8-r; format=flowed Content-Transfer-Encoding: 8bit Content-Language: ru Subject: Re: [devel] =?utf-8?b?0K/QtNGA0LAgNC4xOS81LjQg0Lgg0LTQuNGB0LrQvtCy?= =?utf-8?b?0YvQuSDRiNC10LTRg9C70LXRgA==?= X-BeenThere: devel@lists.altlinux.org X-Mailman-Version: 2.1.12 Precedence: list Reply-To: ALT Linux Team development discussions List-Id: ALT Linux Team development discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 19 Mar 2020 20:26:46 -0000 Archived-At: List-Archive: List-Post: 19.03.2020 23:11, alexei@taf.ru пишет: > Добрый день! > > Скажите, кто знает, а вот такая картина на ядрах, начиная с 4.19, нормальная?: > > # cat /sys/block/sda/queue/scheduler > [none] bfq > > при том на 4.9 имеем такую картину: > > # cat /sys/block/sda/queue/scheduler > noop [deadline] А /dev/sda то какой? Для NVME и некоторых SSD вообще лучше noop. > Лично у меня такое положение вещей вызвало регрессии производительности при обновлении с p8 на p9, > у системы резко вырос iowait. Ситуация выправилась путем принудительного включения bfq на дисках. > Вполне вероятно, что упомянутые в Community@ проблемы имеют те же причины. -- Best regards, Leonid Krivoshein.