Programming :: AMD CPU Generating Way More System Load Than Intel Xeon CPU?
Oct 11, 2010
I am running some muti-threaded code that uses a lot of memory (~6GB). I have it compiled on a cluster that uses Xeon 5160 quad core CPUs with 4MB cache/core, 8GB of RAM and kernel 2.6.18 (x86_64) and I have also the same code compiled on another cluster that uses Opteron 2214 quad core CPUs with 1MB cache/core, 8GB of RAM and kernel 2.6.28 (x86_64). On the Intel cluster the code generates barely any system load when I look on top but on the AMD cluster it can generate over 50% of system load. On the intel machines my process can generate a constant load of 3, while the load generated by the process on the AMD machines is about 1.6.
Does anybody know what could cause this? Could it be the version of the kernel or the difference between the CPUs (for example, the much smaller cache of the AMD CPUS)? My software and all its dependencies are the same on both clusters. I am also using the exact same version of GCC to compile everything.
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Feb 23, 2011
I am using Intel xeon processor on linux plotform using EL4.4. the following error message appear frequently.... the error shows like that
CPU 0 : Machine Chine Exception: 0000000000000004
Bank 0 : cc0000ff20040189 [0010c00002900300] at 0000000002008fc0
Bank 1 : f2000000000000105
Bank 2 : d000000000000153
Kernal Panic - not syncing : CPU Contest Corrupt
<0> Kernal Panic - not syncing : mm/page_alloc.c:410: spin_alloc(mm/Page_alloc.c:c036b9b4) already locked by mm/page_alloc.c/266
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Oct 11, 2010
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Mar 9, 2010
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# ./turbostat
Nehalem multiplier 22, TSC frequency 2933 MHz
Nehalem 4 cores active: 24 mult, max turbo frequency = 3200 MHz
Nehalem 3 cores active: 24 mult, max turbo frequency = 3200 MHz
Nehalem 2 cores active: 25 mult, max turbo frequency = 3333 MHz
Nehalem 1 core active: 25 mult, max turbo frequency = 3333 MHz
[Code]...
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Dec 19, 2010
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Feb 16, 2011
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# cpufreq-info
cpufrequtils 005: cpufreq-info (C) Dominik Brodowski 2004-2006
Report errors and bugs to cpufreq@vger.kernel.org, please.
analyzing CPU 0:
[code]...
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[URL]
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[code]....
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[Code]...
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[Code]....
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[code]....
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uname -a
Code: Select allLinux 4.1.0-2-amd64 #1 SMP Debian 4.1.6-1 (2015-08-23) x86_64 GNU/Linux
lspci | grep VGA
Code: Select all00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06)
01:00.0 VGA compatible controller: NVIDIA Corporation GM206 [GeForce GTX 960] (rev a1)
[Code] .....
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Feb 17, 2011
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