From: hyphop <email2tema@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: Re: Abysmal HDD/USB write speed after sleep on a UEFI system
Date: Wed, 10 Jul 2013 10:25:26 -0700 (PDT) [thread overview]
Message-ID: <1373477126220-681610.post@n7.nabble.com> (raw)
In-Reply-To: <CA+55aFyscOeZUPaYj_-QYgjADPD59+=c5aMvtpPEnd1tmpUGiA@mail.gmail.com>
hello
i have same problem. low write speed after system sleep
kernel 3.9.9
i can see it HDD SATA & USB disks to
i try to make another test
before sleep i make file /tmp/test ( /tmp mounted as tmpfs size=8G, i have
16G memory in my system )
dd if=/dev/zero bs=1M count=1000 of=/tmp/test
~ 3,2 GB/s
cryptsetup luksFormat /tmp/test
cryptsetup luksOpen /tmp/test test
dd if=/dev/zero bs=1M count=1000 of=/dev/mapper/test
~ 465 GB/s good speed
after sleep
dd if=/dev/zero bs=1M count=1000 of=/dev/mapper/test
~ 5MB/s ooops (((( very slow
but if write directly in /tmp i can see
dd if=/dev/zero bs=1M count=1000 of=/tmp/test2
~ 3,2 GB/s
I can see this is not hardware problem (NOT SATA OR USB) i think is kernel
BUG, i i dont have this problem on previous kernel 3.4
Best regards,
Tema
--
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next prev parent reply other threads:[~2013-07-10 17:25 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <587312497.6453.1360650312498.JavaMail.mail@webmail01>
2013-02-12 17:29 ` Abysmal HDD/USB write speed after sleep on a UEFI system Linus Torvalds
2013-02-12 18:29 ` Artem S. Tashkinov
2013-02-12 19:32 ` Linus Torvalds
2013-02-12 20:13 ` Artem S. Tashkinov
2013-02-13 4:26 ` Bjorn Helgaas
2013-02-19 16:22 ` Alan Stern
2013-02-25 21:57 ` Bjorn Helgaas
2013-02-26 6:35 ` Artem S. Tashkinov
2013-02-26 18:46 ` Bjorn Helgaas
2013-02-26 19:14 ` Artem S. Tashkinov
2013-03-07 0:17 ` Bjorn Helgaas
2013-04-26 21:36 ` Bjorn Helgaas
2013-04-27 10:10 ` Artem S. Tashkinov
2013-04-30 4:47 ` Bjorn Helgaas
2013-05-01 4:19 ` Robert Hancock
2013-05-07 15:25 ` Bjorn Helgaas
2013-05-07 15:59 ` Artem S. Tashkinov
2013-05-07 16:27 ` Bjorn Helgaas
2013-05-07 18:50 ` Artem S. Tashkinov
2013-05-07 18:54 ` Bjorn Helgaas
2013-05-07 19:05 ` Robert Hancock
2013-05-07 20:20 ` Bjorn Helgaas
2013-05-07 21:48 ` Patrik Jakobsson
2013-05-07 22:02 ` Bjorn Helgaas
2013-05-07 22:25 ` Patrik Jakobsson
2013-05-08 8:37 ` Artem S. Tashkinov
2013-05-08 8:54 ` Patrik Jakobsson
2013-05-08 13:43 ` Phillip Susi
2013-05-08 8:31 ` Artem S. Tashkinov
2013-05-07 16:12 ` Phillip Susi
2013-07-10 17:25 ` hyphop [this message]
2013-07-10 20:50 ` Bjorn Helgaas
2013-02-10 10:43 Artem S. Tashkinov
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