From: "Artem S. Tashkinov" <t.artem@lycos.com>
To: linux-kernel@vger.kernel.org
Subject: Abysmal HDD/USB write speed after sleep on a UEFI system
Date: Sun, 10 Feb 2013 10:43:15 +0000 (UTC) [thread overview]
Message-ID: <494703114.34959.1360492995961.JavaMail.mail@webmail19> (raw)
Hello,
I have a P8P67 Pro motherboard made by ASUS and recently I decided to switch to EUFI boot.
Maybe it's a coincidence or maybe Linux kernel 3.7.6 (vanilla) has some serious bug but after
waking up from sleep write performance becomes intolerable.
On boot I have:
HDD write performance: ~120MB/sec
USB write performance: ~18MB/sec
After sleep:
HDD write performance: ~7MB/sec (i.e 17 times slower)
USB write performance: ~0.5MB/sec (i.e. 36 times slower)
This is totally unacceptable, the computer becomes unusable.
I'm open to suggestions how to debug this extremely serious problem.
P.S. Since I'm still using x86 kernel, on boot it switches x86-64 UEFI off:
[ 0.000000] efi: EFI v2.31 by American Megatrends
[ 0.000000] efi: ACPI=0xdf385000 ACPI 2.0=0xdf385000 SMBIOS=0xdec28e98 MPS=0xfc9a0
[ 0.000000] efi: No EFI runtime due to 32/64-bit mismatch with kernel
...
[ 0.000000] efi: Setup done, disabling due to 32/64-bit mismatch
Best regards,
Artem
next reply other threads:[~2013-02-10 10:51 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-10 10:43 Artem S. Tashkinov [this message]
[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
2013-07-10 20:50 ` Bjorn Helgaas
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