New features in RHEL6.0 Test

According to foreign media reports, Red Hat recently released the RHEL6.0 enterprise test version. This version of the operating system has greatly improved the multi-Computer switching Management Program (KVMhypervisor), scalability, and file system. For the new version of RHEL6.0, virtual machines running under KVM support up to 64 processors and 1 TB of memory. Karr, marketing manager of RedHat, said that RedHat is committed to improving I/O throughput of KVM virtual machines. With a single I/O virtualization technology (SRIOV), KVM virtual machines can

According to foreign media reports, Red Hat recently released the RHEL 6.0 enterprise test version. The version of the operating system is scalable in the Multi-computer switchover Management Program (KVM hypervisor, the file system has been greatly improved.

For the new RHEL 6.0 version, virtual machines running under KVM support up to 64 processors and 1 TB of memory. Karr, marketing manager of RedHat, said that RedHat is committed to improving I/O throughput of KVM virtual machines. With a single I/O virtualization technology (SRIOV), The KVM virtual machine can skip the KVM hypervisor and directly send I/O data to the disk drive, thus speeding up the I/O throughput. In the new 6.0 operating system, KVM virtual machines can also directly send I/O data to the storage-based fiber channel.

In addition, to improve overall performance and the performance of virtual machines, RHEL 6.0 adds the option to adjust the virtual memory page size, which can be adjusted to a maximum of 2 MB. Large pages can reduce the number of pointers mapped from logical addresses to physical addresses, thus reducing the Storage pressure of chip cache. Carr pointed out that large page storage makes it possible to store massive amounts of data I/O.

RHEL 6.0 also includes Kernel shared memory. The Kernel shared memory can distinguish the paging data in Random storage and clear repeated items. Carr said that the Kernel shared memory reduces the memory requirements of each virtual machine and enables the same host to control more virtual machines.

As we all know, Linux lags behind Windows in terms of energy management. However, RHEL 6.0 has many new energy management functions. For example, when no peripherals are running, the corresponding energy management program runs automatically to reduce the energy provided to pci I/O devices.

Another new energy management feature added by RHEL 6.0 is a kind of "" tick-less State setting provided for the idling of the processor. in this state, the CPU clock does not need to submit reports to the operating system frequently. At the same time, setting this idling state can reduce the power consumption of the chip.

6.0 supports the file system ext4 and uses this version as the default setting for the RHEL 6.0 Operating System File System Version.