linux下面獲取主機資訊

獲取記憶體資訊：

tonykorn97:/nsr/logs # dmidecode |grep -A16 "Memory Device$"
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 1024 MB
Form Factor: DIMM
Set: 1
Locator: DIMM1_A
Bank Locator: Not Specified
Type:
Type Detail: Synchronous
Speed: 400 MHz (2.5 ns)
Handle 0x1101
DMI type 17, 23 bytes.

Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 1024 MB
Form Factor: DIMM
Set: 1
Locator: DIMM1_B
Bank Locator: Not Specified
Type:
Type Detail: Synchronous
Speed: 400 MHz (2.5 ns)
Handle 0x1102
DMI type 17, 23 bytes.
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 1024 MB
Form Factor: DIMM
Set: 2
Locator: DIMM2_A
Bank Locator: Not Specified
Type:
Type Detail: Synchronous
Speed: 400 MHz (2.5 ns)
Handle 0x1103
DMI type 17, 23 bytes.
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 1024 MB
Form Factor: DIMM
Set: 2
Locator: DIMM2_B
Bank Locator: Not Specified
Type:
Type Detail: Synchronous
Speed: 400 MHz (2.5 ns)
Handle 0x1104
DMI type 17, 23 bytes.
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 1024 MB
Form Factor: DIMM
Set: 3
Locator: DIMM3_A
Bank Locator: Not Specified
Type:
Type Detail: Synchronous
Speed: 400 MHz (2.5 ns)
Handle 0x1105
DMI type 17, 23 bytes.
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 1024 MB
Form Factor: DIMM
Set: 3
Locator: DIMM3_B
Bank Locator: Not Specified
Type:
Type Detail: Synchronous
Speed: 400 MHz (2.5 ns)
Handle 0x1300
DMI type 19, 15 bytes.
Memory Array Mapped Address
Starting Address: 0x00000000000
tonykorn97:/nsr/logs #

tonykorn97:/nsr/logs # man dmidecode
Reformatting dmidecode(8), please wait...
DMIDECODE(8) DMIDECODE(8)

NAME
dmidecode - DMI table decoder

SYNOPSIS
dmidecode

DESCRIPTION
dmidecode is a tool for dumping a computer's DMI (some say SMBIOS) table contents in a human-readable format. This table
contains a description of the system's hardware components, as well as other useful pieces of information such as serial
numbers and BIOS revision. Thanks to this table, you can retrieve this information without having to probe for the actual
hardware. While this is a good point in terms of report speed and safeness, this also makes the presented information
possibly unreliable.

The DMI table doesn't only describe what the system is currently made of, it also can report the possible evolutions
(such as the fastest supported CPU or the maximal amount of memory supported).

SMBIOS stands for System Management BIOS, while DMI stands for Desktop Management Interface. Both standards are tightly
related and developed by the DMTF (Desktop Management Task Force).

As you run it, dmidecode will try to locate the DMI table. If it succeeds, it will then parse this table and display a
list of records like this one:

Handle 0x0002
DMI type 2, 8 bytes.
Base Board Information
Manufacturer: Intel
Product Name: C440GX+
Version: 727281-001
Serial Number: INCY92700942

Each record has:

a?… A handle. This is a unique identifier, which allows records to reference each other. For example, processor records
usually reference cache memory records using their handles.

a?… A type. The SMBIOS specification defines different types of elements a computer can be made of. In this example, the
type is 2, which means that the record contains "Base Board Information".

a?… A size. Each record has a 4-byte header (2 for the handle, 1 for the type, 1 for the size), the rest is used by the
record data. This value doesn't take text strings into account (these are placed at the end of the record), so the
actual length of the record may be (and is often) greater than the displayed value.

tonykorn97:/nsr/logs #