02-27-2005
Optimized Linux 2.6.10 Kernel for Dual Xeon with Hyperthreading
Anyone have tips on configuring the 2.6.10 kernel to take full advantage of dual 2.4 Ghz Xeons?
I'm not getting expected benchmark results.... and seemingly was better off with a single 2600+ AMD processor.
8 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Does anyone have any idea how I can manage an XP/Linux dual boot (I want to use debian), I can't find anything about it on the internet! (2 Replies)
Discussion started by: XDC_Wolf
2 Replies
2. Linux Benchmarks
Notes:
System Configuration: Dell Computer Corporation PowerEdge 4600 (4 X Intel(R) XEON(TM) CPU 2.00GHz
1988.782 MHz) hyperthreaded
System clock frequency: 99.0827 MHz
Memory size (approximate): 2559 Megabytes
========================= CPUs ========================
CPU # CPU... (0 Replies)
Discussion started by: tnorth
0 Replies
3. Linux
Does anyone know where I can get Server Optimized Linux online?
Computek:) :( :o :D ;) :p :cool: (3 Replies)
Discussion started by: computek
3 Replies
4. Linux Benchmarks
System:
CPU/Speed: Dual Intel Xeon 2.4Ghz
Ram: 2 GB DDR 266 SDRAM
Motherboard: SuperMicro X5DE8-GG
Bus: 533MHz/400MHz system bus -
Cache: 512KB
HD Controller: EIDE Serverworks™ GC-SL Chipset
Extra GCC compiler flags:
-s... (3 Replies)
Discussion started by: Neo
3 Replies
5. Linux Benchmarks
==============================================================
BYTE UNIX Benchmarks (Version 3.11)
System -- Linux linux.hhc.ac.uk 2.6.9-11.ELsmp #1 SMP Fri May 20 18:26:27 EDT 2005 i686 i686 i386 GNU/Linux
Start Benchmark Run: Wed Jul 6 15:06:07 BST 2005
1 interactive users.... (2 Replies)
Discussion started by: Garp
2 Replies
6. Linux Benchmarks
CPU: dual Xeon 3.2 GHz
Ram: 1Gig
Motherboard:
Bus: 800MHz
Cache: 1MB
Controller:Smart Array 641
Disk: UltraSCSI 320
Load:
Kernel:2.6.9-1.667smp
Kernel ELF?: yes
pgms: compiled with gcc 3.4.3
BYTE UNIX Benchmarks (Version 3.11)
System -- Linux ford 2.6.9-1.667smp #1 SMP... (0 Replies)
Discussion started by: migurus
0 Replies
7. Linux
supermicro(dual core) server getting rebooted after "decompressing the kernel;booting the kernel" message comes.
I tried giving acpi=off to the kernel command line but same problem.It shows everything ok and no problem with memory and processors and power supplies.Wt could be the reason?
It has... (1 Reply)
Discussion started by: pankajd
1 Replies
8. Hardware
Booting and checking BIOS there is no option to enable-disable hyperthreading.
I have 8 Dual-Core AMD Opteron(tm) Processor 8220 and I see 16 cores.
Enable hyperthreading I should have 32 cores.
I have red hat 5.4 installed.
Anyone know how can enable hypethreading ? I have last BIOS/Firmware... (2 Replies)
Discussion started by: laxtnog
2 Replies
LEARN ABOUT FREEBSD
amdtemp
AMDTEMP(4) BSD Kernel Interfaces Manual AMDTEMP(4)
NAME
amdtemp -- device driver for AMD processor on-die digital thermal sensor
SYNOPSIS
To compile this driver into the kernel, place the following line in your kernel configuration file:
device amdtemp
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
amdtemp_load="YES"
DESCRIPTION
The amdtemp driver provides support for the on-die digital thermal sensor present in AMD Family 0Fh, 10h, 11h, 12h, 14h, and 15h processors.
For Family 0Fh processors, the amdtemp driver reports each core's temperature through sysctl nodes, named
dev.amdtemp.%d.core{0,1}.sensor{0,1}. The driver also creates dev.cpu.%d.temperature in the corresponding CPU device's sysctl tree, display-
ing the maximum temperature of the two sensors located in each CPU core.
For Family 10h, 11h, 12h, 14h, and 15h processors, the driver reports each package's temperature through a sysctl node, named
dev.amdtemp.%d.core0.sensor0. The driver also creates dev.cpu.%d.temperature in the corresponding CPU device's sysctl tree, displaying the
temperature of the shared sensor located in each CPU package.
SYSCTL VARIABLES
The following variable is available as both sysctl(8) variable and loader(8) tunable:
dev.amdtemp.%d.sensor_offset
Add the given offset to the temperature of the sensor. Default is 0.
SEE ALSO
loader(8), sysctl(8)
HISTORY
The amdtemp driver first appeared in FreeBSD 7.1.
AUTHORS
Rui Paulo <rpaulo@FreeBSD.org>
Norikatsu Shigemura <nork@FreeBSD.org>
Jung-uk Kim <jkim@FreeBSD.org>
CAVEATS
For Family 10h and later processors, ``(the reported temperature) is a non-physical temperature measured on an arbitrary scale and it does
not represent an actual physical temperature like die or case temperature. Instead, it specifies the processor temperature relative to the
point at which the system must supply the maximum cooling for the processor's specified maximum case temperature and maximum thermal power
dissipation'' according to BIOS and Kernel Developer's Guide (BKDG) for AMD Processors,
http://developer.amd.com/documentation/guides/Pages/default.aspx.
BSD
February 23, 2012 BSD