Check L1 and L2 CPU or Processor memory cache in Linux Fedora using dmidecode command



Configuration for GNU Linux Fedora Computer using Linux Command

 

     The dmidecode command below can be use to check available CPU memory cache or Processor memory cache in Linux Fedora.  The CPU memory cache or Processor memory cache or some say L1 cache and L2 cache that usually reside inside CPU / Processor in the system unit.  The dmidecode command example below is execute to show the L1 memory cache and L2 memory cache for each of my system Processor.

Linux command example::

/usr/sbin/dmidecode --type cache

or  same as

dmidecode --type 7

 

The dmidecode --type cache could give the output on:

7     Cache

 

The output from dmidecode command below show total amount of Processor L1 memory cache and L2 memory cache available on my Linux Fedora system.

Amount L1 memory cache and L2 memory cache display using Linux dmidecode command

[root@localhost ~]# dmidecode --type cache

# dmidecode 2.7

SMBIOS 2.1 present.

 

Handle 0x0700, DMI type 7, 19 bytes.

Cache Information

        Socket Designation: CPU1 L1

        Configuration: Enabled, Not Socketed, Level 1

        Operational Mode: Write Back

        Location: Internal

        Installed Size: 32 KB

        Maximum Size: 32 KB

        Supported SRAM Types:

        Unknown

        Installed SRAM Type: Unknown

        Speed: Unknown

        Error Correction Type: Unknown

        System Type: Unified

        Associativity: Unknown

 

Handle 0x0701, DMI type 7, 19 bytes.

Cache Information

        Socket Designation: CPU1 L2

        Configuration: Enabled, Not Socketed, Level 2

        Operational Mode: Write Back

        Location: Internal

        Installed Size: 512 KB

        Maximum Size: 2048 KB

        Supported SRAM Types:

        Unknown

        Installed SRAM Type: Pipeline Burst

        Speed: Unknown

        Error Correction Type: Single-bit ECC

        System Type: Unified

        Associativity: 4-way Set-associative

 

Handle 0x0702, DMI type 7, 19 bytes.

Cache Information

        Socket Designation: CPU2 L1

        Configuration: Enabled, Not Socketed, Level 1

        Operational Mode: Write Back

        Location: Internal

        Installed Size: 32 KB

        Maximum Size: 32 KB

        Supported SRAM Types:

        Unknown

        Installed SRAM Type: Unknown

        Speed: Unknown

        Error Correction Type: Unknown

        System Type: Unified

        Associativity: Unknown

 

Handle 0x0703, DMI type 7, 19 bytes.

Cache Information

        Socket Designation: CPU2 L2

        Configuration: Enabled, Not Socketed, Level 2

        Operational Mode: Write Back

        Location: Internal

        Installed Size: 512 KB

        Maximum Size: 2048 KB

        Supported SRAM Types:

        Unknown

        Installed SRAM Type: Pipeline Burst

        Speed: Unknown

        Error Correction Type: Single-bit ECC

        System Type: Unified

        Associativity: 4-way Set-associative

 

Wrong DMI structures length: 1225 bytes announced, structures occupy 1219 bytes.

[root@localhost ~]#

 




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