From: Leonid Krivoshein <klark.devel@gmail.com>
To: devel@lists.altlinux.org
Subject: Re: [devel] Ядра 4.19/5.4 и дисковый шедулер
Date: Thu, 19 Mar 2020 23:26:42 +0300
Message-ID: <b1107685-9b3f-ba75-c7a9-8854c7b7184f@gmail.com> (raw)
In-Reply-To: <1276556985.742599.1584648710620.JavaMail.zimbra@taf.ru>
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.
next prev parent reply other threads:[~2020-03-19 20:26 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-19 20:11 alexei
2020-03-19 20:26 ` Leonid Krivoshein [this message]
2020-03-19 20:35 ` Andrey Savchenko
2020-03-23 5:57 ` Alexey V. Vissarionov
2020-03-23 9:39 ` Andrey Savchenko
2020-03-23 12:28 ` Alexey V. Vissarionov
2020-03-23 13:18 ` Andrey Savchenko
2020-03-23 13:32 ` Sergey V Turchin
2020-03-23 15:02 ` Alexey V. Vissarionov
2020-03-24 6:30 ` Sergey V Turchin
2020-03-24 8:51 ` Anton Gorlov
2020-03-24 9:16 ` Sergey V Turchin
2020-03-24 17:42 ` Anton Gorlov
2020-03-23 13:40 ` Anton V. Boyarshinov
2020-03-23 13:52 ` Andrey Savchenko
2020-03-23 15:19 ` Alexey V. Vissarionov
2020-03-23 16:43 ` Andrey Savchenko
2020-03-21 23:32 ` Mikhail Novosyolov
2020-03-21 23:51 ` Dmitry V. Levin
2020-03-19 20:51 ` Konstantin Lepikhov
2020-03-19 20:56 ` Leonid Krivoshein
2020-03-19 21:03 ` alexei
2020-03-19 21:03 ` Leonid Krivoshein
2020-03-20 3:57 ` Anton Farygin
2020-03-20 4:10 ` Alexei Takaseev
2020-03-22 16:07 ` Sergey Y. Afonin
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