Sir/Madam
I have a 64bit machine on which I run SL6
I upgraded to the latest kernel
uname -a
Linux AAAAAAAA 2.6.32-504.3.3.el6.x86_64 #1 SMP Tue Dec 16 14:29:22 CST
2014 x86_64 x86_64 x86_64 GNU/Linux
Since I have done this then the machine behaves ok for 25 mins then
The process load on one of the CPU jumps up to 100%
There are 40 processor on this machine
processor : 39
vendor_id : GenuineIntel
cpu family : 6
model : 62
model name : Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
stepping : 4
microcode : 1046
cpu MHz : 2499.983
cache size : 25600 KB
physical id : 1
siblings : 20
core id : 12
cpu cores : 10
apicid : 57
initial apicid : 57
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx
pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology
nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est
tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic popcnt
tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm ida arat epb
xsaveopt pln pts dts tpr_shadow vnmi flexpriority ept vpid fsgsbase smep
erms
bogomips : 4999.35
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:
There is nothing to indicate why this is happening in /var/log/messages
Originally I had a problem with kondemand but I solved this by turning
off service cpuspeed
However I am not clear why the process load jumps up to 100%
Any help would be sincerely appreciated
Thanking you.
Yours sincerely
Ian Taylor
University of St.Andrews,
School of Physics & Astronomy,
North Haugh,
St.Andrews,
Fife KY16 9SS,
Scotland.
e-Mail :- [email protected]
Tel :- (0)1334-463141
Fax :- (0)1334-463104
The University of St Andrews
is a charity registered in
Scotland : No SC013532.
