linux memory info hardware code example
Example 1: linux command to show memory hardware
$ sudo lshw -short
H/W path Device Class Description
===================================================
system ()
/0 bus DG35EC
/0/0 processor Intel(R) Core(TM)2 Quad CPU Q8400 @ 2.66GHz
/0/0/1 memory 2MiB L2 cache
/0/0/3 memory 32KiB L1 cache
/0/2 memory 32KiB L1 cache
/0/4 memory 64KiB BIOS
/0/14 memory 8GiB System Memory
/0/14/0 memory 2GiB DIMM DDR2 Synchronous 667 MHz (1.5 ns)
/0/14/1 memory 2GiB DIMM DDR2 Synchronous 667 MHz (1.5 ns)
/0/14/2 memory 2GiB DIMM DDR2 Synchronous 667 MHz (1.5 ns)
/0/14/3 memory 2GiB DIMM DDR2 Synchronous 667 MHz (1.5 ns)
/0/100 bridge 82G35 Express DRAM Controller
/0/100/2 display 82G35 Express Integrated Graphics Controller
/0/100/2.1 display 82G35 Express Integrated Graphics Controller
/0/100/19 eth0 network 82566DC Gigabit Network Connection
/0/100/1a bus 82801H (ICH8 Family) USB UHCI Controller
/0/100/1a.1 bus 82801H (ICH8 Family) USB UHCI Controller
/0/100/1a.7 bus 82801H (ICH8 Family) USB2 EHCI Controller
/0/100/1b multimedia 82801H (ICH8 Family) HD Audio Controller
/0/100/1c bridge 82801H (ICH8 Family) PCI Express Port 1
/0/100/1c.1 bridge 82801H (ICH8 Family) PCI Express Port 2
/0/100/1c.2 bridge 82801H (ICH8 Family) PCI Express Port 3
/0/100/1c.2/0 storage JMB368 IDE controller
/0/100/1d bus 82801H (ICH8 Family) USB UHCI Controller
/0/100/1d.1 bus 82801H (ICH8 Family) USB UHCI Controller
/0/100/1d.2 bus 82801H (ICH8 Family) USB UHCI Controller
/0/100/1d.7 bus 82801H (ICH8 Family) USB2 EHCI Controller
/0/100/1e bridge 82801 PCI Bridge
/0/100/1e/5 bus FW322/323 [TrueFire] 1394a Controller
/0/100/1f bridge 82801HB/HR (ICH8/R) LPC Interface Controller
/0/100/1f.2 storage 82801H (ICH8 Family) 4 port SATA Controller [IDE mode]
/0/100/1f.3 bus 82801H (ICH8 Family) SMBus Controller
/0/100/1f.5 storage 82801HR/HO/HH (ICH8R/DO/DH) 2 port SATA Controller [IDE m
/0/1 scsi3 storage
/0/1/0.0.0 /dev/sda disk 500GB ST3500418AS
/0/1/0.0.0/1 /dev/sda1 volume 70GiB Windows NTFS volume
/0/1/0.0.0/2 /dev/sda2 volume 395GiB Extended partition
/0/1/0.0.0/2/5 /dev/sda5 volume 97GiB HPFS/NTFS partition
/0/1/0.0.0/2/6 /dev/sda6 volume 97GiB Linux filesystem partition
/0/1/0.0.0/2/7 /dev/sda7 volume 1952MiB Linux swap / Solaris partition
/0/1/0.0.0/2/8 /dev/sda8 volume 198GiB Linux filesystem partition
/0/3 scsi4 storage
/0/3/0.0.0 /dev/cdrom disk DVD RW DRU-190A
Example 2: linux command to show memory hardware
$ sudo hdparm -i /dev/sda
/dev/sda:
Model=ST3500418AS, FwRev=CC38, SerialNo=9VMJXV1N
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=unknown, BuffSize=16384kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=976773168
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=no WriteCache=enabled
Drive conforms to: unknown: ATA/ATAPI-4,5,6,7
* signifies the current active mode