Dotaz: Pomale jadro 2.6.18-4-686-bigmem v Etch

[Vlada Vyskocil]

Ahoj, mam nasledujici problem. Nainstaloval jsem si debian etch s jadrem 2.6.15-1-486. Spokojenost.Pak jsem si do notebooku dokoupil pameti(celkove 1,2 GB RAM) a puvodni jadro nedovedlo vyuzit vic jak 886 MB operacni pameti. Nainstaloval jsem tedy jadro 2.6.18-4-686-bigmem. S nim to sice najde celou pamet, ale prumerne zatizeni systemu je 40 - 50 % a to nic nedelam. Kdyz nabootuju puvodni jadro,tak je to tak 5 %! V programu "top" to ukazuje u jednotlivych procesu cca podobne hodnoty zatizeni cpu u obou jader. Ale u 2.6.18-4-686-bigmem si system zere daleko vic. Velmi vyrazne je to videt, kdyz pustim video. Na 2.6.15-1-486 mi jede i bez podpory DRI, zatimco na 2.6.18-4-686-bigmem se trha i s podporou DRI.Rozdil je slyset i v otackach vetraku v notebooku. PC je notebook Asus A3H s cpu Celeron M 1,6GHz a 1,2 GB ram. V /var/log/dmesg neni nic podezreleho. Setkal se nekdo s necim podobnym?dik moc

Odpovědi

[michich]

-bigmem jádro by mělo být potřebné až při 4GB RAM a více. Normální linux-image-2.6.18-4-686 musí zvládat paměť do 4GB. Jestli ne, je něco špatně. Jak vypadá dmesg?

[Petr Šobáň]

Je to trochu nepřesné v kernelu je více voleb kolem ram.

Pokud není použita žádná jde pracovat pouze s 1G ram - pak to je správně protože něco zabere bios atd....takže využití 886 MB je OK

A pochybuji že jádro pro 486ku to bude mít zapnuté (aspoň doufám že to je jadro pro 486ku "jadrem 2.6.15-1-486").

Pak je druhá volba která umožnuje pracovat s více ram jak 4G což zapnutou mět nemusíte.

Takže jádra pro 686 by tu první volbu už měly mět zapnutou druhou ne a ta je zapnutá až v bigmem.

Takže jak jsem psal použijte správné jádro pro svůj CPU.

[michich]

linux-image-2.6.18-4-686 je přeloženo s CONFIG_HIGHEM4G=yes

[Petr Šobáň]

Ano pokud tam strkáš jiné jádro jako máš CPU

Takže použij správné jádro pro tvůj CPU, pokud takové neexistuje přelož si ho.

[packal]

Mám stejný notebook a jádro kompilované 2.6.19.2 .. i jakékoliv jiné mi dělá tento problém, který popisuješ.. ale jenom při běhu na AC. Při běhu na baterku se mi zátěž prudce sníží z nějakých 80% na nějakých 14% a je to znát i když mi ondemand stáhne frekvenci na 400Mhz. Taky nevím co s tím..

[Vlada Vyskocil]

Zkousel jsem pouzit jadro 2.6.18-4-686 z debian repository pro etch a chova se to stejne. Zatizeni kolem 30 %. Asi budu muset zkompilovat vlastni jadro.

Linux version 2.6.18-4-686 (Debian 2.6.18.dfsg.1-12) (waldi@debian.org) (gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)) #1 SMP Mon Mar 26 17:17:36 UTC 2007
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
 BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 000000004efc0000 (usable)
 BIOS-e820: 000000004efc0000 - 000000004efcf000 (ACPI data)
 BIOS-e820: 000000004efcf000 - 000000004f000000 (ACPI NVS)
 BIOS-e820: 00000000fed14000 - 00000000fed1a000 (reserved)
 BIOS-e820: 00000000fed1c000 - 00000000fed20000 (reserved)
 BIOS-e820: 00000000ffb80000 - 0000000100000000 (reserved)
367MB HIGHMEM available.
896MB LOWMEM available.
found SMP MP-table at 000ff780
On node 0 totalpages: 323520
  DMA zone: 4096 pages, LIFO batch:0
  Normal zone: 225280 pages, LIFO batch:31
  HighMem zone: 94144 pages, LIFO batch:31
DMI 2.3 present.
ACPI: RSDP (v000 ACPIAM                                ) @ 0x000f6d30
ACPI: RSDT (v001 A M I  OEMRSDT  0x05000616 MSFT 0x00000097) @ 0x4efc0000
ACPI: FADT (v002 A M I  OEMFACP  0x05000616 MSFT 0x00000097) @ 0x4efc0200
ACPI: MADT (v001 A M I  OEMAPIC  0x05000616 MSFT 0x00000097) @ 0x4efc0390
ACPI: MCFG (v001 A M I  OEMMCFG  0x05000616 MSFT 0x00000097) @ 0x4efc03f0
ACPI: OEMB (v001 A M I  AMI_OEM  0x05000616 MSFT 0x00000097) @ 0x4efcf040
ACPI: DSDT (v001  0AAAA 0AAAA000 0x00000000 INTL 0x02002026) @ 0x00000000
ACPI: PM-Timer IO Port: 0x808
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
Processor #0 6:13 APIC version 20
ACPI: IOAPIC (id[0x01] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 1, version 32, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
ACPI: IRQ0 used by override.
ACPI: IRQ2 used by override.
ACPI: IRQ9 used by override.
Enabling APIC mode:  Flat.  Using 1 I/O APICs
Using ACPI (MADT) for SMP configuration information
Allocating PCI resources starting at 50000000 (gap: 4f000000:afd14000)
Detected 1596.090 MHz processor.
Built 1 zonelists.  Total pages: 323520
Kernel command line: root=/dev/hda2 ro
mapped APIC to ffffd000 (fee00000)
mapped IOAPIC to ffffc000 (fec00000)
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
PID hash table entries: 4096 (order: 12, 16384 bytes)
Console: colour VGA+ 80x25
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 1274836k/1294080k available (1544k kernel code, 18000k reserved, 577k data, 196k init, 376576k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay using timer specific routine.. 3194.99 BogoMIPS (lpj=6389989)
Security Framework v1.0.0 initialized
SELinux:  Disabled at boot.
Capability LSM initialized
Mount-cache hash table entries: 512
CPU: After generic identify, caps: afe9fbff 00100000 00000000 00000000 00000000 00000000 00000000
CPU: After vendor identify, caps: afe9fbff 00100000 00000000 00000000 00000000 00000000 00000000
CPU: L1 I cache: 32K, L1 D cache: 32K
CPU: L2 cache: 1024K
CPU: After all inits, caps: afe9fbff 00100000 00000000 00000040 00000000 00000000 00000000
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
Compat vDSO mapped to ffffe000.
Checking 'hlt' instruction... OK.
SMP alternatives: switching to UP code
Freeing SMP alternatives: 16k freed
ACPI: Core revision 20060707
CPU0: Intel(R) Celeron(R) M processor         1.60GHz stepping 08
Total of 1 processors activated (3194.99 BogoMIPS).
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1
Brought up 1 CPUs
migration_cost=0
checking if image is initramfs... it is
Freeing initrd memory: 4400k freed
NET: Registered protocol family 16
ACPI: bus type pci registered
PCI: BIOS Bug: MCFG area at e0000000 is not E820-reserved
PCI: Not using MMCONFIG.
PCI: PCI BIOS revision 2.10 entry at 0xf0031, last bus=2
PCI: Using configuration type 1
Setting up standard PCI resources
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (0000:00)
PCI: Probing PCI hardware (bus 00)
Boot video device is 0000:00:02.0
PCI quirk: region 0800-087f claimed by ICH6 ACPI/GPIO/TCO
PCI quirk: region 0480-04bf claimed by ICH6 GPIO
PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.1
PCI: Transparent bridge - 0000:00:1e.0
PCI: Bus #02 (-#05) is hidden behind transparent bridge #01 (-#02) (try 'pci=assign-busses')
Please report the result to linux-kernel to fix this permanently
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P1._PRT]
ACPI: Embedded Controller [EC0] (gpe 28) interrupt mode.
ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 *11 12)
ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 12) *11
ACPI: PCI Interrupt Link [LNKC] (IRQs *3 4 5 6 7 12)
ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 *7 12)
ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 *6 7 12)
ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 12) *0, disabled.
ACPI: PCI Interrupt Link [LNKG] (IRQs 3 *4 5 6 7 12)
ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 *5 6 7 12)
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI init
pnp: PnP ACPI: found 13 devices
PnPBIOS: Disabled by ACPI PNP
PCI: Using ACPI for IRQ routing
PCI: If a device doesn't work, try "pci=routeirq".  If it helps, post a report
PCI: Ignore bogus resource 6 [0:0] of 0000:00:02.0
PCI: Bus 2, cardbus bridge: 0000:01:01.0
  IO window: 0000d000-0000d0ff
  IO window: 0000d400-0000d4ff
  PREFETCH window: 50000000-51ffffff
  MEM window: 52000000-53ffffff
PCI: Bridge: 0000:00:1e.0
  IO window: d000-dfff
  MEM window: fe800000-fe8fffff
  PREFETCH window: 50000000-51ffffff
PCI: Setting latency timer of device 0000:00:1e.0 to 64
ACPI: PCI Interrupt 0000:01:01.0[A] -> GSI 17 (level, low) -> IRQ 169
NET: Registered protocol family 2
IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
TCP established hash table entries: 131072 (order: 8, 1048576 bytes)
TCP bind hash table entries: 65536 (order: 7, 524288 bytes)
TCP: Hash tables configured (established 131072 bind 65536)
TCP reno registered
audit: initializing netlink socket (disabled)
audit(1175540332.892:1): initialized
highmem bounce pool size: 64 pages
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered (default)
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
PNP: PS/2 Controller [PNP0303:PS2K,PNP0f03:PS2M] at 0x60,0x64 irq 1,12
i8042.c: Detected active multiplexing controller, rev 1.1.
serio: i8042 AUX0 port at 0x60,0x64 irq 12
serio: i8042 AUX1 port at 0x60,0x64 irq 12
serio: i8042 AUX2 port at 0x60,0x64 irq 12
serio: i8042 AUX3 port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
mice: PS/2 mouse device common for all mice
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
NET: Registered protocol family 8
NET: Registered protocol family 20
Using IPI No-Shortcut mode
ACPI: (supports S0 S3 S4 S5)
Freeing unused kernel memory: 196k freed
Time: tsc clocksource has been installed.
ACPI: CPU0 (power states: C1[C1] C2[C2])
ACPI: Processor [CPU1] (supports 8 throttling states)
Time: acpi_pm clocksource has been installed.
ACPI: Thermal Zone [THRM] (57 C)
input: AT Translated Set 2 keyboard as /class/input/input0
usbcore: registered new driver usbfs
usbcore: registered new driver hub
USB Universal Host Controller Interface driver v3.0
ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 23 (level, low) -> IRQ 177
PCI: Setting latency timer of device 0000:00:1d.0 to 64
uhci_hcd 0000:00:1d.0: UHCI Host Controller
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 1
uhci_hcd 0000:00:1d.0: irq 177, io base 0x0000e400
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 19 (level, low) -> IRQ 185
PCI: Setting latency timer of device 0000:00:1d.1 to 64
uhci_hcd 0000:00:1d.1: UHCI Host Controller
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 2
uhci_hcd 0000:00:1d.1: irq 185, io base 0x0000e480
usb usb2: configuration #1 chosen from 1 choice
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
8139cp: 10/100 PCI Ethernet driver v1.2 (Mar 22, 2004)
ieee1394: Initialized config rom entry `ip1394'
ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 18 (level, low) -> IRQ 193
PCI: Setting latency timer of device 0000:00:1d.2 to 64
uhci_hcd 0000:00:1d.2: UHCI Host Controller
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 3
uhci_hcd 0000:00:1d.2: irq 193, io base 0x0000e800
usb usb3: configuration #1 chosen from 1 choice
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
ACPI: PCI Interrupt 0000:00:1d.7[A] -> GSI 23 (level, low) -> IRQ 177
PCI: Setting latency timer of device 0000:00:1d.7 to 64
ehci_hcd 0000:00:1d.7: EHCI Host Controller
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 4
ehci_hcd 0000:00:1d.7: debug port 1
PCI: cache line size of 32 is not supported by device 0000:00:1d.7
ehci_hcd 0000:00:1d.7: irq 177, io mem 0xfeb3fc00
ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
usb usb4: configuration #1 chosen from 1 choice
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 6 ports detected
usb 1-1: new full speed USB device using uhci_hcd and address 2
8139cp 0000:01:00.0: This (id 10ec:8139 rev 10) is not an 8139C+ compatible chip
8139cp 0000:01:00.0: Try the "8139too" driver instead.
ACPI: PCI Interrupt 0000:01:01.1[B] -> GSI 18 (level, low) -> IRQ 193
ohci1394: fw-host0: OHCI-1394 1.0 (PCI): IRQ=[193]  MMIO=[fe8ef000-fe8ef7ff]  Max Packet=[2048]  IR/IT contexts=[4/4]
ICH6: IDE controller at PCI slot 0000:00:1f.1
ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 18 (level, low) -> IRQ 193
ICH6: chipset revision 4
ICH6: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:DMA, hdb:DMA
    ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdc:pio, hdd:pio
Probing IDE interface ide0...
8139too Fast Ethernet driver 0.9.27
hda: HTS421260H9AT00, ATA DISK drive
usb 4-1: new high speed USB device using ehci_hcd and address 2
ieee1394: Host added: ID:BUS[0-00:1023]  GUID[00e0180003456574]
usb 4-1: configuration #1 chosen from 1 choice
hub 4-1:1.0: USB hub found
hub 4-1:1.0: 1 port detected
hdb: MATSHITADVD-RAM UJ-841S, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Probing IDE interface ide1...
usb 4-1.1: new high speed USB device using ehci_hcd and address 4
ACPI: PCI Interrupt 0000:01:00.0[A] -> GSI 20 (level, low) -> IRQ 201
eth0: RealTek RTL8139 at 0xd800, 00:15:f2:51:9f:91, IRQ 201
eth0:  Identified 8139 chip type 'RTL-8100B/8139D'
hda: max request size: 512KiB
usb 4-1.1: configuration #1 chosen from 1 choice
hda: 117210240 sectors (60011 MB) w/1570KiB Cache, CHS=16383/255/63, UDMA(100)
hda: cache flushes supported
 hda: hda1 hda2 hda3
SCSI subsystem initialized
Initializing USB Mass Storage driver...
hdb: ATAPI 24X DVD-ROM DVD-R-RAM CD-R/RW drive, 2048kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.20
usb 2-2: new low speed USB device using uhci_hcd and address 2
usb 2-2: configuration #1 chosen from 1 choice
scsi0 : SCSI emulation for USB Mass Storage devices
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
usb-storage: device found at 4
usb-storage: waiting for device to settle before scanning
usbcore: registered new driver hiddev
input: Logitech Optical USB Mouse as /class/input/input1
input: USB HID v1.10 Mouse [Logitech Optical USB Mouse] on usb-0000:00:1d.1-2
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.6:USB HID core driver
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
  Vendor: USB 2.0   Model: Flash Disk        Rev: 1.00
  Type:   Direct-Access                      ANSI SCSI revision: 00
usb-storage: device scan complete
SCSI device sda: 1015808 512-byte hdwr sectors (520 MB)
sda: Write Protect is off
sda: Mode Sense: 00 26 00 00
sda: assuming drive cache: write through
SCSI device sda: 1015808 512-byte hdwr sectors (520 MB)
sda: Write Protect is off
sda: Mode Sense: 00 26 00 00
sda: assuming drive cache: write through
 sda: sda1
sd 0:0:0:0: Attached scsi removable disk sda
Real Time Clock Driver v1.12ac
input: PC Speaker as /class/input/input2
eth1394: eth1: IEEE-1394 IPv4 over 1394 Ethernet (fw-host0)
ts: Compaq touchscreen protocol output
intel_rng: FWH not detected
Linux agpgart interface v0.101 (c) Dave Jones
agpgart: Detected an Intel 915GM Chipset.
agpgart: Detected 16124K stolen memory.
agpgart: AGP aperture is 256M @ 0xd0000000
Yenta: CardBus bridge found at 0000:01:01.0 [1043:1117]
ieee80211_crypt: registered algorithm 'NULL'
Yenta: ISA IRQ mask 0x04b8, PCI irq 169
Socket status: 30000006
Yenta: Raising subordinate bus# of parent bus (#01) from #02 to #05
pcmcia: parent PCI bridge I/O window: 0xd000 - 0xdfff
cs: IO port probe 0xd000-0xdfff: clean.
pcmcia: parent PCI bridge Memory window: 0xfe800000 - 0xfe8fffff
pcmcia: parent PCI bridge Memory window: 0x50000000 - 0x51ffffff
sdhci: Secure Digital Host Controller Interface driver, 0.12
sdhci: Copyright(c) Pierre Ossman
sdhci: SDHCI controller found at 0000:01:01.2 [1180:0822] (rev 17)
ACPI: PCI Interrupt 0000:01:01.2[C] -> GSI 19 (level, low) -> IRQ 185
mmc0: SDHCI at 0xfe8ef800 irq 185 DMA
ieee80211: 802.11 data/management/control stack, git-1.1.13
ieee80211: Copyright (C) 2004-2005 Intel Corporation 
Synaptics Touchpad, model: 1, fw: 5.9, id: 0x926eb1, caps: 0xa0471b/0x0
input: SynPS/2 Synaptics TouchPad as /class/input/input3
bcm43xx driver
ACPI: PCI Interrupt 0000:01:03.0[A] -> GSI 22 (level, low) -> IRQ 209
bcm43xx: Chip ID 0x4318, rev 0x2
bcm43xx: Number of cores: 4
bcm43xx: Core 0: ID 0x800, rev 0xd, vendor 0x4243, enabled
bcm43xx: Core 1: ID 0x812, rev 0x9, vendor 0x4243, disabled
bcm43xx: Core 2: ID 0x804, rev 0xc, vendor 0x4243, enabled
bcm43xx: Core 3: ID 0x80d, rev 0x7, vendor 0x4243, enabled
bcm43xx: PHY connected
bcm43xx: Detected PHY: Version: 3, Type 2, Revision 7
bcm43xx: Detected Radio: ID: 8205017f (Manuf: 17f Ver: 2050 Rev: 8)
bcm43xx: Radio turned off
bcm43xx: Radio turned off
ACPI: PCI Interrupt 0000:00:1b.0[A] -> GSI 16 (level, low) -> IRQ 217
PCI: Setting latency timer of device 0000:00:1b.0 to 64
cs: IO port probe 0x100-0x3af: excluding 0x170-0x177 0x370-0x377
cs: IO port probe 0x3e0-0x4ff: excluding 0x400-0x41f 0x4d0-0x4d7
cs: IO port probe 0x820-0x8ff: clean.
cs: IO port probe 0xc00-0xcf7: clean.
cs: IO port probe 0xa00-0xaff: clean.
EXT3 FS on hda2, internal journal
Probing IDE interface ide1...
ieee1394: sbp2: Driver forced to serialize I/O (serialize_io=1)
ieee1394: sbp2: Try serialize_io=0 for better performance
device-mapper: ioctl: 4.7.0-ioctl (2006-06-24) initialised: dm-devel@redhat.com
kjournald starting.  Commit interval 5 seconds
EXT3 FS on hda3, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
pcmcia: Detected deprecated PCMCIA ioctl usage from process: discover.
pcmcia: This interface will soon be removed from the kernel; please expect breakage unless you upgrade to new tools.
pcmcia: see http://www.kernel.org/pub/linux/utils/kernel/pcmcia/pcmcia.html for details.
eth0: link up, 100Mbps, full-duplex, lpa 0x41E1

[Petr Šobáň]

Ale pokud vidím dobře tak jádro poznalo všechnu ram.

367MB HIGHMEM available.
896MB LOWMEM available.

Takže podle čeho soudíte že se používá pouze 896MB ? Nemáte nějakej zmršenej program který hlásí nesmysly ?

[Vlada Vyskocil]

Tohle je dmesg vypsany po nabehnuti jadra 2.6.18-4-686. To najde pamet spravne, ale zatizeni systemu je temer konstantne kolem 30 %, a to na notebooku nic nedelam, jen mam pusteny top. Kdyz rebootuju a v grubu vyberu puvodni jadro 2.6.15-1(to najde pouze cast operacni pameti), tak je zatizeni pri necinnosti vzdy do 10 %(skace to kolem 5 %)

[Petr Šobáň]

V tom případě asy bude nejlepší si přeložit vlastní jádro a vyházet nesmysly které nepotřebujete.

Na jednom stroji co jsem měl (slabší) originál jádro taky běhalo nějak pomalu po vlastním překladu běhalo viditelně i měřitelně rychleji.

Takže než složitě skoušet co to brzdí bych si přeložil vlastní a nechal v jádře pouze podporu toho HW co ten NB má.

[michich]

Zkousel jsem pouzit jadro 2.6.18-4-686 z debian repository pro etch a chova se to stejne. Zatizeni kolem 30 %. Asi budu muset zkompilovat vlastni jadro.

To není normální chování. Zkompilováním vlastního jádra by se to možná vyřešilo, ale zajímavější by bylo zjistit, čím to je.

  Vendor: USB 2.0   Model: Flash Disk        Rev: 1.00
  Type:   Direct-Access                      ANSI SCSI revision: 00

Nepřestane to, když ho odpojíš?

bcm43xx driver

Používal jsi tento driver i dříve? Je ještě trochu experimentální. Nepomůže, když ho rmmodneš? Nebo nějaký jiný driver...

Nenarůstá nějak podezřele počet přerušení? Zkontroluj /proc/interrupts. Dost by pomohlo, kdyby ses pokusil takto se chovající kernel profilovat. V Documentation/basic_profiling.txt jsou nějaké instrukce.