Hi there,
I've been experiencing performance problems in my laptop (Acer Aspire
1522WLMi). I have the feeling that the problem is related to hard
drive performance, as whenever I do some I/O intensive task (mainly
tested compiling Java code) my system performance goes down, and
switching to any other application takes a lot (hard drive performance
problem while doing swapping?). I hasn't been able to solve it,
although I've read doco and tried tweaking the hd peformance with
hdparm.
Here is the info for my system, notice the unknown devices in lspci
output (any missing driver in kernel?) and the "BuffType=unknown,
BuffSize=0kB" in hdparm output (is my hard drive using its 8Mb
internal buffer???):
Portage 2.0.51.19 (default-linux/amd64/2004.3, gcc-3.4.2,
glibc-2.3.4.20041102-r1, 2.6.9-gentoo-r14 x86_64)
System uname: 2.6.9-gentoo-r14 x86_64 AMD Athlon(tm) 64 Processor 3000+
packet root # lspci
0000:00:00.0 Host bridge: VIA Technologies, Inc.: Unknown device 0204
0000:00:00.1 Host bridge: VIA Technologies, Inc.: Unknown device 1204
0000:00:00.2 Host bridge: VIA Technologies, Inc.: Unknown device 2204
0000:00:00.3 Host bridge: VIA Technologies, Inc. K8M800
0000:00:00.4 Host bridge: VIA Technologies, Inc.: Unknown device 4204
0000:00:00.7 Host bridge: VIA Technologies, Inc. K8M800
0000:00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI bridge [K8T800 South]
0000:00:0a.0 Ethernet controller: Linksys, A Division of Cisco Systems
[AirConn] INPROCOMM IPN 2220 Wireless LAN Adapter (rev 01)
0000:00:0b.0 CardBus bridge: Texas Instruments PCI7420 CardBus Controller
0000:00:0b.1 CardBus bridge: Texas Instruments PCI7420 CardBus Controller
0000:00:0b.2 FireWire (IEEE 1394): Texas Instruments PCI7x20
1394a-2000 OHCI Two-Port PHY/Link-Layer Controller
0000:00:0c.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8169 Gigabit Ethernet (rev 10)
0000:00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB
1.1 Controller (rev 80)
0000:00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB
1.1 Controller (rev 80)
0000:00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB
1.1 Controller (rev 80)
0000:00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82)
0000:00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge
0000:00:11.1 IDE interface: VIA Technologies, Inc.
VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
0000:00:11.5 Multimedia audio controller: VIA Technologies, Inc.
VT8233/A/8235/8237 AC97 Audio Controller (rev 50)
0000:00:11.6 Communication controller: VIA Technologies, Inc. AC'97
Modem Controller (rev 80)
0000:00:18.0 Host bridge: Advanced Micro Devices [AMD] K8
[Athlon64/Opteron] HyperTransport Technology Configuration
0000:00:18.1 Host bridge: Advanced Micro Devices [AMD] K8
[Athlon64/Opteron] Address Map
0000:00:18.2 Host bridge: Advanced Micro Devices [AMD] K8
[Athlon64/Opteron] DRAM Controller
0000:00:18.3 Host bridge: Advanced Micro Devices [AMD] K8
[Athlon64/Opteron] Miscellaneous Control
0000:01:00.0 VGA compatible controller: nVidia Corporation NV36
[GeForce FX Go5700] (rev a1)
packet root # grep VIA /usr/src/linux/.config
CONFIG_BLK_DEV_VIA82CXXX=y
CONFIG_SCSI_SATA_VIA=m
CONFIG_VIA_RHINE=m
# CONFIG_VIA_RHINE_MMIO is not set
# CONFIG_VIA_VELOCITY is not set
# CONFIG_I2C_VIA is not set
CONFIG_I2C_VIAPRO=m
CONFIG_SENSORS_VIA686A=m
packet root # hdparm -vid /dev/hda
/dev/hda:
multcount = 16 (on)
IO_support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
keepsettings = 0 (off)
readonly = 0 (off)
readahead = 256 (on)
geometry = 65535/16/63, sectors = 80026361856, start = 0
Model=TOSHIBA MK8025GAS, FwRev=KA023A, SerialNo=74631490S
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=48
BuffType=unknown, BuffSize=0kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=156301488
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=yes: unknown setting WriteCache=enabled
Drive conforms to: device does not report version:
* signifies the current active mode
packet root # hdparm -tT /dev/hda
/dev/hda:
Timing cached reads: 2216 MB in 2.00 seconds = 1107.06 MB/sec
Timing buffered disk reads: 76 MB in 3.03 seconds = 25.06 MB/sec
Any suggestions?
Thanks in advance, best regards
Jose
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