From: Yura Kalinichenko <yuk@kalina.in.ua>
To: shigorin@gmail.com,
ALT Linux Community general discussions
<community@lists.altlinux.org>
Subject: Re: [Comm] Запись на жесткий диск - ядро 2.6 хуже, чем 2.4 ???
Date: Sat, 06 Nov 2010 23:44:30 +0200
Message-ID: <4CD5CC3E.4060309@kalina.in.ua> (raw)
In-Reply-To: <20101106200236.GK23633@osdn.org.ua>
Michael Shigorin пишет:
> Погоняй разные io scheduler'ы, меня устроил deadline.
>
Да, конечно. А ты BFQ не пробовал часом ?
> Если вдруг softraid не зеркалом,
Зеркалом, только зеркалом.
> echo 2048 > /sys/block/md0/md/stripe_cache_size
>
Ммм.. Для raid1 вроде ж страйп не используется ? Да и не только на рейде
эта ерунда происходит.
> hdparm -a 1024 /dev/sd[a-h] >/dev/null
> hdparm -a 4096 /dev/md[04] >/dev/null
>
>
Как может read-ahead влиять на производительность записи ? Впрочем попробую.
--
SY,
Yura Kalinichenko
next prev parent reply other threads:[~2010-11-06 21:44 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-06 16:47 Yura Kalinichenko
2010-11-06 18:19 ` vx 8400
2010-11-06 18:44 ` Yura Kalinichenko
2010-11-06 19:12 ` vx 8400
2010-11-06 21:35 ` Yura Kalinichenko
2010-11-07 9:07 ` vx 8400
2010-11-07 16:25 ` Yura Kalinichenko
2010-11-07 16:38 ` vx 8400
2010-11-07 17:17 ` Yura Kalinichenko
2010-11-07 17:47 ` vx 8400
2010-11-07 17:58 ` vx 8400
2010-11-06 20:03 ` Michael Shigorin
2010-11-06 20:02 ` Michael Shigorin
2010-11-06 21:44 ` Yura Kalinichenko [this message]
2010-11-06 22:50 ` Michael Shigorin
2010-12-17 9:37 ` Yura Kalinichenko
2010-12-17 10:07 ` vx 8400
2010-12-17 21:53 ` Yura Kalinichenko
2010-12-17 13:33 ` Damir
2010-12-17 23:06 ` Yura Kalinichenko
2010-12-17 16:01 ` Michael Shigorin
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