From: Pawel Dziekonski <pawel.dziekonski@pwr.wroc.pl>
To: linux-kernel@vger.kernel.org
Subject: [2.6.4] IDE performance drop again
Date: Sun, 14 Mar 2004 12:57:27 +0100 [thread overview]
Message-ID: <20040314115727.GA21362@sun1000.pwr.wroc.pl> (raw)
hi,
after switching from 2.6.1 to 2.6.4 I see IDE performance drop again.
hdparm /dev/hda
/dev/hda:
multcount = 1 (on)
IO_support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 8192 (on)
geometry = 26310/16/63, sectors = 26520480, start = 0
under 2.4.x and 2.6.1 i had about 40 MB/s in hdparm -ft. in 2.6.4 i get
at most 26 MB/s. changing readahead does not help. i'm using ac
scheduler.
lspci
00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 02)
00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP]
00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 22)
00:07.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT8233/A/C/VT8235 PIPC Bus Master IDE (rev 10)
00:07.2 USB Controller: VIA Technologies, Inc. USB (rev 10)
00:07.3 USB Controller: VIA Technologies, Inc. USB (rev 10)
00:07.4 Bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 30)
00:07.5 Multimedia audio controller: VIA Technologies, Inc. VT82C686 AC97 Audio Controller (rev 20)
00:0b.0 SCSI storage controller: Tekram Technology Co.,Ltd. TRM-S1040 (rev 01)
00:11.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 02)
00:11.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 02)
00:14.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
01:00.0 VGA compatible controller: nVidia Corporation NV11 [GeForce2 MX/MX 400] (rev b2)
/proc/interrupts
CPU0
0: 1602384 XT-PIC timer
1: 4247 XT-PIC i8042
2: 0 XT-PIC cascade
8: 6328 XT-PIC rtc
9: 0 XT-PIC acpi
10: 194179 XT-PIC uhci_hcd, uhci_hcd, eth0
11: 0 XT-PIC VIA686A
12: 100786 XT-PIC nvidia, bttv0
14: 27087 XT-PIC ide0
15: 5 XT-PIC ide1
NMI: 0
LOC: 1598373
ERR: 260588
MIS: 0
regards, P
PS. I'm not subscribed, so please CC me your replies. thanks.
--
Pawel Dziekonski <pawel.dziekonski|@|pwr.wroc.pl>, KDM WCSS avatar:0:0:
Wroclaw Networking & Supercomputing Center, HPC Department
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next reply other threads:[~2004-03-14 11:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-14 11:57 Pawel Dziekonski [this message]
2004-03-14 12:23 ` Sven Köhler
2004-03-14 14:44 ` Jens Axboe
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