- Community Home
- >
- Servers and Operating Systems
- >
- Operating Systems
- >
- Operating System - Linux
- >
- linux OLE:5.5 64bit Multi-thread process only see...
Categories
Company
Local Language
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Discussions
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Community
Resources
Forums
Blogs
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
11-15-2011 07:57 AM
11-15-2011 07:57 AM
linux OLE:5.5 64bit Multi-thread process only see 1 CPU
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
11-20-2011 02:00 AM
11-20-2011 02:00 AM
Re: linux OLE:5.5 64bit Multi-thread process only see 1 CPU
Quad-core processors, so 4 cores in each physical CPU.
You would expect to see a total of 8 cores (sometimes labeled "processors" for historical reasons, including in /proc/cpuinfo).
With hyperthreading enabled (in some CPUs), you might see 16 "cores".
The BIOS is probably counting physical CPUs, not cores.
But if you're seeing only one CPU core in one physical CPU, are you running a single-processor kernel? As a single-processor kernel has no support for multiple CPU cores at all, it can use only 1 core of a single multi-core processor.
With "OLE" I guess you mean Oracle Enterprise Linux (OEL), right? When asking for help, please specify the full name of your Linux distribution to avoid misunderstandings: the industry has far too many TLAs (Three-Letter Acronyms :) already.
I could not find the list of kernel choices for OEL5 (also known as "kernel flavours"). But if OEL follows the pattern of RedHat, there should be multiple kernel RPM packages: the plain kernel-<version-patchlevel>.rpm is the single-processor version, while kernel-smp-<version-patchlevel>.rpm is the multiprocessor version which you'll need.
Run "uname -r" to see your current kernel version. If the version includes only the letters "EL", it may be a single-processor version. "ELsmp" would indicate a multi-processor version.
Install the appropriate kernel-smp-<version-patchlevel>.rpm, then reboot your system. Make sure the bootloader is choosing the ELsmp kernel by default.