[linux] 4GB RAM a 2.6.x

[Ing. Marian STETINA]

Ma v jadre je zapnute  High Memory Support na 4GiB alebo na 64GiB ??
Tipoval by som, ze terba mat zapnute 64GB ..


Martin Kotys wrote:

>Zdravim,
>
>rad by som sa poinformoval ake mate skusenosti s linuxom beziacim s 4GB
>ram. Do servera som dal 4x1GB ramky, bios tuto ramku detekoval v
>poriadku, avsak po nabootovani Linux pouziva len 3,296GB.
>
>Docital som sa ze je mozne aby Linux spravoval pamat v tzv. 3/1 mode,
>resp aby vyuzival plnych 4GB. Tuto moznost som zakompiloval do jadra,
>avsak nebadat ziadnu zmenu.
>
>Mojim cielom je spristupnit jednemu procesu viac ako 3GB ramky, kedze sa
>na tom stroji vykonavaju vypocty a mnozstvo dat pomaly presahuje
>pociatocnu specifikaciu (vypocet samozrejme nieje mozne distribuovat na
>viac strojov :)
>
>Mate s tym nejake skusenosti?
>
>Pre viac informacii:
>
>lspci:
>00:00.0 Host bridge: Intel Corporation 915G/P/GV Processor to I/O
>Controller (rev 04)
>00:01.0 PCI bridge: Intel Corporation 915G/P/GV PCI Express Root Port
>(rev 04)
>00:1c.0 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
>Family) PCI Express Port 1 (rev 03)
>00:1c.1 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
>Family) PCI Express Port 2 (rev 03)
>00:1d.0 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
>Family) USB UHCI #1 (rev 03)
>00:1d.1 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
>Family) USB UHCI #2 (rev 03)
>00:1d.2 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
>Family) USB UHCI #3 (rev 03)
>00:1d.3 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
>Family) USB UHCI #4 (rev 03)
>00:1d.7 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
>Family) USB2 EHCI Controller (rev 03)
>00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d3)
>00:1e.2 Multimedia audio controller: Intel Corporation
>82801FB/FBM/FR/FW/FRW (ICH6 Family) AC'97 Audio Controller (rev 03)
>00:1f.0 ISA bridge: Intel Corporation 82801FB/FR (ICH6/ICH6R) LPC
>Interface Bridge (rev 03)
>00:1f.1 IDE interface: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
>Family) IDE Controller (rev 03)
>00:1f.2 IDE interface: Intel Corporation 82801FB/FW (ICH6/ICH6W) SATA
>Controller (rev 03)
>00:1f.3 SMBus: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family)
>SMBus Controller (rev 03)
>01:00.0 VGA compatible controller: ATI Technologies Inc RV370 5B60
>[Radeon X300 (PCIE)]
>01:00.1 Display controller: ATI Technologies Inc: Unknown device 5b70
>04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
>RTL-8139/8139C/8139C+ (rev 10)
>04:02.0 Communication controller: Conexant: Unknown device 2f20
>04:03.0 Ethernet controller: Broadcom Corporation BCM4401 100Base-T (rev
>01)
>
>dmesg:
>Memory: 3374328k/3406368k available (2061k kernel code, 30908k reserved,
>755k data, 228k init, 2488864k highmem)
>
>
>/proc/meminfo:
>MemTotal:      3375304 kB
>MemFree:       3135184 kB
>Buffers:         10284 kB
>Cached:          83352 kB
>SwapCached:          0 kB
>Active:         155756 kB
>Inactive:        61112 kB
>HighTotal:     2488864 kB
>HighFree:      2278484 kB
>LowTotal:       886440 kB
>LowFree:        856700 kB
>SwapTotal:     1959920 kB
>SwapFree:      1959920 kB
>Dirty:             136 kB
>Writeback:           0 kB
>Mapped:         139456 kB
>Slab:            12936 kB
>CommitLimit:   3647572 kB
>Committed_AS:   919152 kB
>PageTables:       1596 kB
>VmallocTotal:   114680 kB
>VmallocUsed:      1152 kB
>VmallocChunk:   113512 kB
>
>
>Vdaka.
>
>  
>
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>
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