CPU Core Usage

Experts,
What is the optimum core requirements for a SAP server running 7 users ? and How is this derived at? Also the current servers come with dual core, quad core capacities how can I translate this into whats good for SAP Business one v9.0 with the same number of users ?
Regards,

Hi Martin,
First of all the amount of users is not a good measure to determine server hardware requirements.
A much better measure is the average amount of transactions you expect to enter into the system on a daily basis.
Very roughly you could count it like this (example of a single sales order):
Transactions
One sales order
1
The sales order has for example 5 lines
5
The corresponding delivery
1
The corresponding delivery lines
5
The corresponding Invoice
1
The corresponding Invoice lines
5
Total:
18
Next, the CPU has relatively little influence on the performance of your B1 system. Much more important are RAM and hard disks. Please read this article on best practices for the B1 hardware landscape
Regards,
Johan

Similar Messages

Only one CPU core high sys usage when create database instance via dbca

when using dbca to create database instance
JUST ONLY ONE CPU core high sys usage
how to troubleshoot it
see this:
top - 09:28:19 up 55 days, 20:38, 10 users, load average: 1.00, 1.08, 1.31
Tasks: 1231 total,   2 running, 1228 sleeping,   0 stopped,   1 zombie
Cpu(s): 0.0%us, 1.3%sy, 0.0%ni, 98.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 57588328k total, 55028620k used, 2559708k free,   196852k buffers
Swap: 16386292k total,    23156k used, 16363136k free, 23011232k cached
PID USER      PR NI VIRT RES SHR S %CPU %MEM    TIME+ COMMAND
11343 oracle    25   0 1771m 30m 23m R 99.7 0.1   5:36.39 oracle
3692 oracle    16   0 13948 2348 816 S 1.6 0.0 17:00.94 top
11432 root      15   0 13540 2024 820 R 1.3 0.0   0:00.21 top
11034 oracle    16   0 737m 171m 33m S 0.3 0.3   0:52.39 java
11435 oracle    15   0 66056 1596 1180 S 0.3 0.0   0:00.01 bash
    1 root      15   0   784 172 160 S 0.0 0.0 38:56.76 init
    2 root      RT -5     0    0    0 S 0.0 0.0   0:00.58 migration/0
    3 root      34 19     0    0    0 S 0.0 0.0   0:00.75 ksoftirqd/0
    4 root      RT -5     0    0    0 S 0.0 0.0   0:00.00 watchdog/0
    5 root      RT -5     0    0    0 S 0.0 0.0   0:00.81 migration/1
    6 root      34 19     0    0    0 S 0.0 0.0   0:00.00 ksoftirqd/1
    7 root      RT -5     0    0    0 S 0.0 0.0   0:00.00 watchdog/1
    8 root      RT -5     0    0    0 S 0.0 0.0   0:02.53 migration/2    mpstat info
[root@localhost ~]# mpstat -P ALL 2
Linux 2.6.18-164.el5 (localhost.localdomain)    09/12/12
09:29:09     CPU   %user   %nice    %sys %iowait    %irq   %soft %steal   %idle    intr/s
09:29:11     all    0.01    0.00    1.27    0.01    0.00    0.01    0.00   98.69   1658.29
09:29:11       0    0.50    0.00    0.00    0.00    0.00    0.50    0.00   98.99   1657.29
09:29:11      73    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00
09:29:11      74    0.00    0.00 100.00    0.00    0.00    0.00    0.00    0.00      0.00
09:29:11      75    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00
09:29:11      76    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00
09:29:11      77    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00
09:29:11      78    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00
09:29:11      79    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00
09:29:11     CPU   %user   %nice    %sys %iowait    %irq   %soft %steal   %idle    intr/s
09:29:13     all    0.01    0.00    1.26    0.01    0.00    0.02    0.00   98.70   1761.19
09:29:13       0    0.50    0.00    0.50    1.00    0.00    1.99    0.00   96.02   1761.19
09:29:13      71    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00
09:29:13      72    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00
09:29:13      73    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00
09:29:13      74    0.00    0.00 100.00    0.00    0.00    0.00    0.00    0.00      0.00
09:29:13      75    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00
09:29:13      76    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00
09:29:13      77    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00
09:29:13      78    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00
09:29:13      79    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00          you can see there is only one CPU CORE (core 74 but is random , other core have same status but just one CPU core)
[root@localhost ~]# vmstat -S m 2
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
r b   swpd   free   buff cache   si   so    bi    bo   in   cs us sy id wa st
3 0     23   1861    203 24267    0    0     8    12    0    0 0 0 99 0 0
4 0     23   1845    203 24262    0    0   602 16460 3682 8121 2 2 96 1 0
3 0     23   1842    203 24276    0    0   692 7520 3297 6610 2 2 97 0 0
3 0     23   1830    203 24277    0    0   786 3040 3302 7118 2 2 97 0 0
4 0     23   1829    203 24277    0    0   126 3144 3247 7343 2 1 97 0 0
3 0     23   1827    203 24279    0    0    76 2944 3292 7502 2 2 96 0 0
3 0     23   1823    203 24281    0    0     0 3248 3164 7656 2 1 97 0 0
2 0     23   1827    203 24279    0    0     0 3646 3080 7480 2 1 97 0 0
2 0     23   1828    203 24279    0    0     0   476 2942 5648 1 1 98 0 0
3 0     23   1824    203 24281    0    0     2 7476 3377 8111 2 2 97 0 0iostat infor
avg-cpu: %user   %nice %system %iowait %steal   %idle
           1.28    0.00    1.29    0.00    0.00   97.43
Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
hda               0.00         0.00         0.00          0          0
sda               5.47         0.00        83.58          0        168
sda1              0.00         0.00         0.00          0          0
sda2              5.47         0.00        83.58          0        168
sda3              0.00         0.00         0.00          0          0
sda4              0.00         0.00         0.00          0          0
sda5              0.00         0.00         0.00          0          0
sdb               8.96         0.00       123.38          0        248
sdb1              8.96         0.00       123.38          0        248
avg-cpu: %user   %nice %system %iowait %steal   %idle
           1.27    0.00    1.27    0.00    0.00   97.46
Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
hda               0.00         0.00         0.00          0          0
sda               0.00         0.00         0.00          0          0
sda1              0.00         0.00         0.00          0          0
sda2              0.00         0.00         0.00          0          0
sda3              0.00         0.00         0.00          0          0
sda4              0.00         0.00         0.00          0          0
sda5              0.00         0.00         0.00          0          0
sdb              17.50         0.00       236.00          0        472
sdb1             17.50         0.00       236.00          0        472
avg-cpu: %user   %nice %system %iowait %steal   %idle
           1.29    0.00    1.30    0.01    0.00   97.41
Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
hda               0.00         0.00         0.00          0          0
sda               0.50         0.00        16.00          0         32
sda1              0.00         0.00         0.00          0          0
sda2              0.50         0.00        16.00          0         32
sda3              0.00         0.00         0.00          0          0
sda4              0.00         0.00         0.00          0          0
sda5              0.00         0.00         0.00          0          0
sdb               7.50         0.00       144.00          0        288
sdb1              7.50         0.00       144.00          0        288more detail:
database version 11.2.0.2.0
system version
[root@localhost ~]# cat /etc/issue
Red Hat Enterprise Linux Server release 5.4 (Tikanga)
Kernel \r on an \m
[root@localhost ~]# lsb_release
LSB Version:    :core-3.1-amd64:core-3.1-ia32:core-3.1-noarch:graphics-3.1-amd64:graphics-3.1-ia32:graphics-3.1-noarch
[root@localhost ~]# uname -a
Linux localhost.localdomain 2.6.18-164.el5 #1 SMP Tue Aug 18 15:51:48 EDT 2009 x86_64 x86_64 x86_64 GNU/Linuxhardware info
vendor_id       : GenuineIntel
cpu family      : 6
model           : 47
model name      :        Intel(R) Xeon(R) CPU E7- 4860 @ 2.27GHz
stepping        : 2
cpu MHz         : 2261.057
cache size      : 24576 KB
physical id     : 3
siblings        : 20
core id         : 18
cpu cores       : 10
apicid          : 229
fpu             : yes
fpu_exception   : yes
cpuid level     : 11
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 syscall nx pdpe1gb rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx smx est tm2 cx16 xtpr popcnt lahf_lm
bogomips        : 4522.11
clflush size    : 64
cache_alignment : 64
address sizes   : 44 bits physical, 48 bits virtual
[root@localhost ~]# free -m
             total       used       free     shared    buffers     cached
Mem:         56238      55892        346          0        196      23645
-/+ buffers/cache:      32050      24188
Swap:        16002         22      15979
[root@localhost ~]# df -h
Filesystem            Size Used Avail Use% Mounted on
/dev/sda2              19G 4.9G   14G 27% /
/dev/sda5             230G   27G 192G 12% /home
/dev/sda1              99M   12M   83M 13% /boot
/dev/sdb1             2.9T 2.3T 464G 84% /arrayEdited by: JOhnLiu on Sep 11, 2012 7:31 PM

JOhnLiu wrote:
thanks for reply sb92075
[root@localhost ~]# mpstat -P ALL 2
Linux 2.6.18-164.el5 (localhost.localdomain)    09/12/12
09:29:09     CPU   %user   %nice    %sys %iowait    %irq   %soft %steal   %idle    intr/s
09:29:11     all    0.01    0.00    1.27    0.01    0.00    0.01    0.00   98.69   1658.29
09:29:11       0    0.50    0.00    0.00    0.00    0.00    0.50    0.00   98.99   1657.29
09:29:11      73    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00
09:29:11      74    0.00    0.00 100.00    0.00    0.00    0.00    0.00    0.00      0.00
09:29:11      75    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00
09:29:11      76    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00I think you don't understand what i mean .
there just have ONLY ONE CORE %sys 100
the top command show average of all cpu core sys% usage
when the one core sys% is 100%
the system are very slow .
e.g: when I create a database instance used for a long time . over 2 hours
but generally it will be done at most 1 hours or shorteris any type of OS virtualization involved in this environment?

Command is used to get the usage of each CPU core in multi core cpu

Hi,
Using sar command how can i get usage of each cpu core.
-Thanks

The best way to do this is to put the monitor name as a property bag in the script and pass that to your event details. Otherwise, we're looking at querying the database each time the monitor generates an event, and this is overhead that is really not
necessary. The other option, which is just even worse in terms of performance, is to use powershell to query the SDK for the monitor name. Both of these options are not going to be a good solution, because now you need to implement action accounts that can
either query the database or the sdk.
Jonathan Almquist | SCOMskills, LLC (http://scomskills.com)

Uneven Core usage on dual core processor

Hi there
I noticed today whilst doing some video encoding (.TS files to .MP4) that my Mac Mini is not spreading the load over both of the cores in my dual core processor. Whilst Core 1 is showing nearly 100% Core 2 is hardly being used. Also I noticed that when the load on Core 1 dips then Core 2 will peak but as soon as the load goes back to Core 1 it will equally dip on Core 2 so essentially in Activity Monitor it looks like the core usage is a negative image of each other. The total CPU usage never peaked above 54%.
Could this an indication of a failing CPU or is it a case of poor core management? The software I've been using is VLC Player and also iMagiConverter.
Cheers
Jonty

What I don't understand is why software developers make software (especially video encoding that is all about CPU number crunching) that only utilises 50% of the CPU resources!
There are any number of possible reasons, from an application using a cross-platform code base that doesn't lend itself well to mulitiprocessor optimization for a particular platform, to inexperienced programmers who don't well understand programming for parallel threads, to developers who just want to crank out an application as quickly as they can (iMagiConverter seems to sort of fall into that category, given the number of applications of a similar nature that the "company" has produced). You'd have to get involved in the project development to know for sure.
Regards.

Only one CPU core recognized [solved]

For some reason the kernel only recognizes one CPU core out of two. I'm not completely sure at which kernel upgrade it disappeared but it is gone in 2.6.36 and 2.6.37. I know it was still there in september 2010 and earlier. I'm using a x86-64 kernel.
cat /proc/cpuinfo:
processor : 0
vendor_id : AuthenticAMD
cpu family : 16
model : 6
model name : AMD Athlon(tm) II X2 245 Processor
stepping : 2
cpu MHz : 2913.253
cache size : 1024 KB
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc up rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt npt lbrv svm_lock nrip_save
bogomips : 5828.27
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate
Motherboard is: Gigabyte MA770T-UD3P. I use the latest bios.
I have tried adding the kernel options "acpi=off noacpi apic=off noapic" as to the suggestion of a ubuntu bug report in launchpad but it didn't help. I also disabled ACPI in the bios but I'm still limited to one cpu core.
Any ideas?
[SOLVED]
I just doublechecked the BIOS settings and it had the CPU Core Control set to manual and one core was disabled. I set it to auto again and now both cores are recognized correctly. I don't recall ever touching this setting but at least it works now. Maybe a bios update actually changed the setting or (more probable) a friend of mine.
Last edited by Baraclese (2011-01-17 19:01:02)

JOhnLiu wrote:
thanks for reply sb92075
[root@localhost ~]# mpstat -P ALL 2
Linux 2.6.18-164.el5 (localhost.localdomain)    09/12/12
09:29:09     CPU   %user   %nice    %sys %iowait    %irq   %soft %steal   %idle    intr/s
09:29:11     all    0.01    0.00    1.27    0.01    0.00    0.01    0.00   98.69   1658.29
09:29:11       0    0.50    0.00    0.00    0.00    0.00    0.50    0.00   98.99   1657.29
09:29:11      73    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00
09:29:11      74    0.00    0.00 100.00    0.00    0.00    0.00    0.00    0.00      0.00
09:29:11      75    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00
09:29:11      76    0.00    0.00    0.00    0.00    0.00    0.00    0.00 100.00      0.00I think you don't understand what i mean .
there just have ONLY ONE CORE %sys 100
the top command show average of all cpu core sys% usage
when the one core sys% is 100%
the system are very slow .
e.g: when I create a database instance used for a long time . over 2 hours
but generally it will be done at most 1 hours or shorteris any type of OS virtualization involved in this environment?

Webform loading too long : only 1 cpu core used out of 16 core available?

Hi,
We have one webform which is quite heavy and takes 1min30 to load :
1 minute for essbase calculation (spreadsheet extractor)
30 seconds for network & browser rendering
We have seen that Essbase is only using 1 cpu core (100% usage) out 16 core available
Does it is possible to give some calculations to other cpu core? I know it's possible for HBR rules with CALCPARALLEL but for a webform?
Thanks!
Edited by: Tipiak on 3 juil. 2012 23:06

The system has no ability to use multiple threads for one web form. It sounds as if your form is not designed for optimal performance which usually means you have a large number of total cells and/or are not using dense dimensions for your rows and columns (usually accounts/periods).
Suggest you refer to the KB article which discusses Hyperion Planning Form design at:
https://support.oracle.com/CSP/main/article?cmd=show&type=NOT&id=779502.1
Regards,
john A. Booth
http://www.metavero.com

MobileDeviceHelper running @ 100% on one CPU Core

Hi, anyone suggest anything to fix one of my CPU cores runs MobileDeviceHelper (32Bit) at 100% consistently after iTunes is started.
The machine is a new build with Windows 8 64bit all updates and patches applied. All latest manufacturer chipset and other relevant drivers and every other part of the machine works perfectly. If I end the process, distnoted (32 bit) then replaces it and takes over with another core running at 100%. Ending that process and mobiledevicehelper comes back at one core 100% usage, then ending that and it behaves.
I have tried restarting the machine, installing updates, disabling the task in task manager, resetting the network adapter (winsock reset) and disabling ApplePush, and itunes helper at startup but am out of ideas now! I haven't even sync'd my phone to it yet.
Im fast thinking iTunes seems to be getting more buggy each release (I haven't been able to burn an audio cd on the new machine as it crashes while attempting to, but other software can burn the same playlist and file after dragging out of the iTunes playlist) yet iTunes on my Macbook runs fine!

oh and its iTunes 12.1.1.4 64Bit with Windows 8.1 Pro 64Bit all latest updates.
As a workaround I have found the two files, renamed them so iTunes cant call them and everything still works fine which begs the questions what are they doing that uses 100% of one CPU core! I haven't setup my iPhone as a remote, or my AppleTVs yet, hoping they don't rely on these services!

PPro not using all cpu cores evenly

Hey Guys!
I've been recently trying to optimize my laptop to get better performance.
I have a Lenovo Y550P -
i7 Q 720 1.60 GHz
8GB Ram
Nvidia GT240m video card (1gb ram)
64 bit windows 7
500 gb 7200 RPM HDD
I know this is not the ideal setup, but it is what I have.
I have a massive amount of GoPro footage to process, and was having issues shuttling at 1/4 resolution. I made some tweaks such as:
removed windows visual effects
enabled hard drive write buffering
disable CPU core parking (laptop thing)
various tweaks to the services.msc file
"enabled" my video card for cuda =)
This has greatly improved my shuttling for 2x and 4x. however when I watch the performance monitor I notice it uses CPU cores 4 & 7 significantly more than the other cores. CPU usage only reaches about 40% during shuttling, yet stutters.
Here is a screen capture of resource monitor on disks: I'm currently reading the footage from an external USB 3.0 drive (F), scratch disks are set to internal (C).
Here is a screen capture of CPU resources, notice how cpu core 4 (start from 0) has higher usage.
Is there something I can improve on my setup to make my system more efficient, or is all this just because of the HDD bottleneck? Any advice on improving my limited systems performance would be appreciated.
Thank you for your time!

Sorry, here are the images!

Multisim 11 only uses one CPU core during simulation

Hi,
Just recently I've been using MultiSim again, v11 if that matters, and simulating goes slow, to my opinion that is.
Now there are two things that I've noticed:
- Multisim only uses one of two CPU cores during simulation, not both;
- I've enabled CPU throttle (AMD's Cool'n'Quiet) but corespeed remains very low even though Multisim needs CPU power while simulating.
The simulating of a NE555-based LED-flash circuit requires about 28 seconds to get to 100ms in the simulation. Now if I can get the CPU to throttle up, by for example having Prime95 stress one of the two cores, then the simulation only requires 12 seconds to get to 100ms.
So here are my two questions:
1. Is Multisim 11 capable of using more than one CPU core while simulating? If yes, how can I get it to use more than one?
2. Probably not the right forum to ask, but is there a way to force Windows 7 Ultimate x64 to throttle up the CPU when Multisim starts simulating? Since Multisim does not seem to stress the only core it uses enough to throttle it up. Using Prime95 on one core does trigger a throttle up.
With regards,
Bart Grefte
Relevant specs:
Windows 7 Ultimate x64
Multisim v11
AMD A4-3400
16GB RAM

Completely forgot this topic....
Is there a good reason why there is no multicore support? Multisim can certainly use it for simulating.
As for the CPU throttling, I found a batch that can increase/decrease the "minimum processor state"-setting and it works immediately, no reboot required.
@echo off
powercfg.exe -getactivescheme > "%userprofile%\appdata\~apo.tmp"
set /p v_currentscheme= <"%userprofile%\appdata\~apo.tmp"
set v_currentscheme=%v_currentscheme:~24,36%
del "%userprofile%\appdata\~apo.tmp"
powercfg -setacvalueindex %v_currentscheme% 54533251-82be-4824-96c1-47b60b740d00 893dee8e-2bef-41e0-89c6-b55d0929964c %1
powercfg -setdcvalueindex %v_currentscheme% 54533251-82be-4824-96c1-47b60b740d00 893dee8e-2bef-41e0-89c6-b55d0929964c %1
powercfg -s %v_currentscheme%
exit
Usage is simple:
Start -> run -> c:\pathtobatch.bat 100
for "minimum processor state"-setting at 100%
Start -> run -> c:\pathtobatch.bat 5
for "minimum processor state"-setting at 5%
Please note that "set v_currentscheme=%v_currentscheme:~24,36%" is not the same for every language. The original batch had "set v_currentscheme=%v_currentscheme:~19,36%" (most likely for the English version of Windows 7), but since my Windows install is in Dutch, I had to change it in order for it to work.
Running the batch with @echo off removed will show why.

Macbook Pro CPU Core's temperature measurments

I have a late 2011 15-inch Macbook Pro OS X 10.8.4 with BootCamp installed.
In OS X environment, the CPU core temperatures are around 40 - 44C, while in idle or with a minimum Safari browsing the net.
When in Bootcamp with Windows 7 Professional, in the similar operating/application condition, but the my Macbook's CPU Core Temperatures are always about 52 - 55C (10 degrees higher than in OS X).
While doing heavy stuffs such as Virus Scan, Time Machine, Data Backup, Video Editing etc ... on both environments the CPU core temperatures could go up to upper 80's degree C.
Is it normal ? if so, is there any explanation for 10 degrees warmer while in BootCamp/Windows ?
Thanks

RealTemp, CoreTemp but my money goes to AIDA64 for the most thorough information about all your devices, drivers, versions of, as well as temp and fan speed.
Latest drivers and utilities
http://forums.tweaktown.com/gigabyte/30530-latest-overclocking-programs-system-i nfo-benchmarking-stability-tools.html
GPU-Z:
http://www.techpowerup.com/downloads/SysInfo/GPU-Z/
AIDA64 Extreme Edition
http://www.aida64.com
http://www.aida64.com/product/aida64-extreme-edition/overview
CCleaner
http://www.piriform.com/ccleaner
BootChamp
http://www.macupdate.com/app/mac/28468/bootchamp
Lubbo FanControl for MacBook Pro
http://sourceforge.net/projects/lubbofancontrol/
- check forum for tip on how to get it to work with new Retina MBP
http://sourceforge.net/projects/lubbofancontrol/forums/forum/970570/topic/539412 2
TEMP cleanup
http://support.kaspersky.com/faq/?qid=208279128
How to view error message:
From Control Panel-> Admin. Tools-> Event Viewer-> Windows logs:
Check Application and System Folders for Red highlit messages. Note that you can right-click clear these log folders.
Memtest
This is a step by step guide with audio and video to explain how to use memtest to see if your memory is defect:
Another thing to add is that some errors will not be found on the first pass, best to do at least 3 passes.
http://www2.corsair.com/training/how_to_memtest/

Load balancing on CPU cores

Hi,
We have a supermicro server with 2 x E5-2660 processors and 160GB of memory.
The only role assigned to this server is Hyper-V and we have about 100 VMs each with two vCores provisioned on this server.
I checked the cpu load by monioring the %Processor Time counter and noticed that while 10 out of 32 cores are at 100%, 15 of them are below 10%.
I am wondering if it possible to balance the load on the CPU cores to improve the performance and utilize the full processing power of each CPU.

Hyper-V will schedule things appropriately - most likely better than any manual intervention could provide. It could be the nature of your applications.
Hyper-V does provide the ability to assign memory weightings to different VMs if you really want to get into that.
.:|:.:|:. tim

Can Essbase uses SGI 80 CPU core, 960GB super computer Octane III?

Recently SGI annouced a super computer that can support max 20 Intel Xeon X550 series CPU (total 20 * 4 = 80 CPU cores) and 960 GB memory (96GB * 10). Can Essbase support this kind of hardware deployment to gain maximum system performance?
The server can be used for Linux or Windows Server 2008 platform.
http://www.sgi.com/products/servers/octaneIII/
http://www.sgi.com/pdfs/4177.pdf

Is Essbase supported on Windows Server 2008? If so, why not. Wintel is wintel is wintel.
And I know you would be just the guy for this box. :)
Are you seriously considering this for Essbase? It would be fun to throw some benchmarking tests at a box like that. If your company buys this beast and applies it to Essbase, please tell us all about it, really.
Once upon a time, Hyperion used to taunt Oracle with benchmarking tests against Express or whatever Oracle called Express/OFA back then.
So, how fast do you think Sample.Basic would run on this machine? :)
Regards,
Cameron Lackpour

Disable CPU core in Solaris 10

Hi,
can anybody help me to disable cpu core in solaris 10. my server is Sparc T4-1 server (1 physical processor with 8 core 64 threads). I am able to disable threads using psradm, but not sure about disabling core.
thanks
Sajith.P.V

You can disable a single core in solaris using "psradm -f <cpu id>"
man page for psradm
The psradm utility changes the operational status of proces-
sors. The legal states for the processor are on-line, off-
line, spare, faulted, and no-intr.
An on-line processor processes LWPs (lightweight processes)
and can be interrupted by I/O devices in the system.
An off-line processor does not process any LWPs. Usually, an
off-line processor is not interruptible by I/O devices in
the system. On some processors or under certain conditions,
it might not be possible to disable interrupts for an off-
line processor. Thus, the actual effect of being off-line
might vary from machine to machine.
A spare processor does not process any LWPs. A spare proces-
sor can be brought on-line, off-line or to no-intr by a
privileged user of the system or by the kernel in response
to changes in the system state.
Example 1 Setting Processors to off-line
The following example sets processors 2 and 3 off-line:
% psradm -f 2 3
Example 2 Setting Processors to no-intr
The following example sets processors 1 and 2 no-intr:
% psradm -i 1 2
Example 3 Setting Processors to spare
The following example sets processors 1 and 2 spare, even if
either of the processors was in the faulted state:
% psradm -F -s 1 2
Example 4 Setting All Processors on-line
% psradm -a -n
Example 5 Forcing Processors to off-line
The following example sets processors 1 and 2 offline, and
revokes the processor bindings from the processes bound to
them:
% psradm -F -f 1 2

CPU System usage ver high

I have a brand new macbook pro, had it about 3 wks so I'm frustrated to be having problems already. My CPU system usage stays around 89%, but my user is like 3%. Haven't downloaded any big apps or anything onto it. Imported my itunes library, not a huge one. Anyway I'm frustrated and annoyed because my computer is running very slow and it's stupid.

Yeah, I know what you're talking about, but there's nothing there that is using 89%. Right now I have 2 apps running. Activity monitor, Safari. Activity monitor is showing 3.2%, Safari 1.3%. The rest of the stuff is either 0 or 0.01.
Here's a list of the other things listed (which are running at 0.00-0.01%)
WebKitPluginAgent
UserEventAgent
SystemUIServer
pboard
mdworker
loginwindow
launchd
iTunesHelper
fontd
Dock
AppleSpell.service
AirPort Base Station Agent

Pinning physical CPU cores for VMs

Hi all,
Let's assume we have OVM Server pool on two-node Dell R900 Hosts, FC switches and SAN. One server is acting as the Server Pool Master and Utilty Server, as well as the OVM Server. The other Dell R900 server acts as the OVM Server. Both Dell servers have two quad-core processors and are configured as active/passive. VMs are meant to be on SAN but will need memory and CPU from the phyisical servers in two-node Dell r900 hosts.
Is it possible to specify cores for the first VM as cpus='0,1,2,3' and the second VM as cpus='4,5,6,7' in both vm.cfg to avoid the situation when they will both use the same first four cores on the same phyisical server? I know it is more expensive lto use all 8 cores but is inevitable since the two applications in two VMs will need a lot of processing power.
What would be your recommendation how to configure vm.cfg and cpus parameter for two different VMs?
Cheers,
Andrei

I am in a very similar position where we have 2 CPU license for Oracle DB. I would like to use this to run two separate databases on separate OS instances. One will be an OBIEE database and the other will be an Oracle Retail database. I'd like to assign both guests CPU 0,1,2,3 and let them share the CPU resources but I don't know if you can do that with "Hard Partitioning".
Interesting side note - since the servers I bought are running the Intel X5680 CPU's they have the new style Nehalem hyperthreading. This means that on my 2 socket server I have a total of 12 CPU cores (six core CPU's) and each core has two threads. This shows up as 24 CPU's on the Oracle VM server. If I read the licensing correctly I can run my 2 CPU's on 4 cores which means I should be able to assign 8 CPU instances and meet the database CPU licencing requirements - RIGHT?! - thoughts?

CPU Core Usage

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