• Register

Most popular tags

Welcome to UNIRAC.IN - Q!,

where you can ask questions and receive answers from other members of the community.
Real Time Oracle DBA training by MNC Expert with 12+yrs

Congrats!

Our Candidates Placed in TOP MNC's

Tech Mahindra,3i,Tera (Krishna,Ravi)
Infosys(Khaleel)
Wipro (Govardhan)
Qualcomm(Confidential)
TATA Power (Vikram)
HP (Anil)
Igate (Venkat)
UnitedHealth(Vikram)
Wirpo,InSolutions,3i,ING,TechMahindra(Siva)
Dubai,Apollo Munich (Shahjath)
Innopath,TeraSoft-(Anil)
IPSoft-Pradeep
Dubai-(Adnan)
3i-Naveen
3i-Shiva
Many MOrE.........Congrats to ALL

Why? Implement HugePages on Linux Environments

225 views asked in Troubleshooting by UNIRAC ACE (20,050 points)

1 Answer

Implementing HugePages greatly improves the performance of the kernel on Linux environments. This is especially true for systems with more memory. Generally speaking any system with more than 12GB of RAM is a good candidate for hugepages. The more RAM there is in the system, the more your system will benefit by having hugepages enabled. This is because the amount of work the kernel must do to map and maintain the page tables for this amount of memory increases with more memory in the system. Enabling hugepages greatly reduces the # of pages the kernel must manage, and makes the system much more efficient. If hugepages is NOT enabled, experience has shown that it is very common for the kernel to preempt the critical Oracle Clusterware or Real Application Clusters daemons, leading to instance evictions or node evictions.

answered by UNIRAC ACE (20,050 points)
...