Difference between revisions of "RAM"
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== Activities == | == Activities == | ||
− | # Review how much RAM you have in your linux computer by executing: <code>cat | + | # Review how much RAM you have in your linux computer by executing: <code>cat [[/proc/meminfo]]</code> |
# Review physical RAM modules in Linux as [[w:superuser|superuser]] with: <code>[[w:dmidecode|dmidecode]] --type memory</code> | # Review physical RAM modules in Linux as [[w:superuser|superuser]] with: <code>[[w:dmidecode|dmidecode]] --type memory</code> | ||
# Learn about how much RAM can a single [[CPU]] socket support in [[system administration/ProLiant|modern enterprise hardware]]. As of 2019 some servers support up to 3.0 TB per socket.<ref>https://www.hpe.com/uk/en/product-catalog/servers/proliant-servers/pip.hpe-proliant-dl380-gen10-server.1011484040.html</ref> | # Learn about how much RAM can a single [[CPU]] socket support in [[system administration/ProLiant|modern enterprise hardware]]. As of 2019 some servers support up to 3.0 TB per socket.<ref>https://www.hpe.com/uk/en/product-catalog/servers/proliant-servers/pip.hpe-proliant-dl380-gen10-server.1011484040.html</ref> |
Revision as of 06:32, 29 January 2020
Random-access memory (RAM /ræm/) is a form of computer memory that can be read and write in any order typically used for CPU operations and storing volatile information.
Activities
- Review how much RAM you have in your linux computer by executing:
cat /proc/meminfo
- Review physical RAM modules in Linux as superuser with:
dmidecode --type memory
- Learn about how much RAM can a single CPU socket support in modern enterprise hardware. As of 2019 some servers support up to 3.0 TB per socket.[1]
- Use
free
command in Linux to review your memory usage - Use
sar -r
to view historical memory usage - Compare SDD and RAM speeds
See also
- wikipedia:DDR4_SDRAM and wikipedia:DDR5_SDRAM
- KVM: Virsh Memory Commands
- CPU, HDD and SSD
- Linux server administration/Performance and Troubleshooting
- Memory Unit
- Memory: memory pages, RAM, virsh Memory Commands, OOM, meminfo,
vmstat
, NAND, DDR,lsmem
,/dev/shm
,/proc/meminfo
,sar -r
, IOMMU,pmem
, Memory management, Garbage collector, THP, Linux Huge Page TLB
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