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2answers
2k views

Will all cores be used on an i7 when running SQL Server 2008 R2 Standard

I have a server with an Intel Core i7 processor (4 cores). If I view processor activity in Task Manager I see that there are 8 cores. I believe that this is because of hyperthreading (please correct ...
1
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3answers
576 views

How can I run command and select core to be used

I have a command to run (in this case is a php5 script) and I would like to know if there is something to run this command and select the core to be runed. What I want to do is to run 1 command per ...
0
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4answers
2k views

How to force a process to run on a particular cpu?

I know that taskset can be used to force a process to run on a particular cpu. How can I force tomcat to run on a particular CPU? I then want to run apache bench on a seperate CPU. Update I ...
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votes
3answers
435 views

Why do I need six cores in a cpu for a server? [closed]

I was getting specs for dell server and one cpu is an Intel Xeon with 6 cores, another 4 cores. What am I getting with this? Do I need six cores? What does that give me? I don't know what mult-...
0
votes
1answer
753 views

Tomcat performing terribly for no apparent reason

We're running a game application .WAR on Tomcat 6 on an Amazon EC2 server, 8 core processor, 7gb RAM. The application uses a MySQL database hosted on Amazon RDS. This Facebook application takes ages ...
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2answers
682 views

Hyperthreading on multicore processors - is it of any use? [closed]

I know hyperthreading from the time long ago where the processors used to have only a single core. The technology was really usefull then. Right now, Intel is still offering hyperthreading with 6-core ...
3
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2answers
196 views

Performance implications of CPU/cores ratio

With the recent widespread adoption of multi-core CPUs, a question comes to mind: how does CPU/cores ratio relate to performance? Which of these is better, how and why? 1 8-core CPU 2 4-core CPUs 4 ...
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5answers
2k views

How can I move a process to a core or dedicate a process to a processor?

I have an Intel E5620 processor. I have used cat /proc/[pid]/stat to determine what processor the process was last run on (39th field). How can I ensure that a process is dedicated to a processor (I ...
2
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3answers
10k views

Setting up Apache to use multiple cores

Recently I have purchased a 6 core server which is running Ubuntu 10.04 and Apache. How do you set up apache to use all 6 cores and what is the best practice to do this? Is it possible and if it is ...
7
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1answer
8k views

MySQL and Multi-Core processors

I'm running MySQL on win2008 server on a multi-core xeon processor. It looks like it only uses a single core. Is there something I need to configure to make it use all cores ? The server is ...
3
votes
2answers
307 views

Can IIS create threads from GPU cores?

Can IIS be set up to take advantage of new massively multi-core GPU's to provide additional thread for maximum concurrency? My thought is that with technology like the AMD Fusion would it be possible ...
1
vote
1answer
390 views

If SMP is disabled, does that mean I cannot use multicores? Or multiprocessors?

I've purchased a VPS for the sake of dev work, and had wished to install NetBSD under the Xen DomU guest. Unfortunately it is stated that this will work, however will not support SMP. Does this mean ...
2
votes
1answer
303 views

Q9650 vs. i7-870 for Server

One of our dedicated machines we use for hosting in London has exceeded the CPU usage, so I contacted the datacenter last week for a quote on an upgrade. We are hosting game servers, and most of these ...
2
votes
1answer
127 views

VPS Hosting - Mhz vs Core

Not sure if this has been asked, can't find any existing questions. Link me if they exist :) When looking for a VPS, some hosting providers offer X amount of Mhz, while other hosts offer X amount of ...
2
votes
1answer
568 views

IIS 7.5 application pool CPU configuration

I have a web application that when runs on windows 2008 r2 data center edition and when the server is configured with a single core processor consumes 13 mb ram, when configured to run on dual core ...
1
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1answer
272 views

Java doesn't seem to utilize more than two cpus

In my current setup (debian squeeze x64, 6 cpus) neither java nor apache seem to utilitze the full potential of the server. The munin monitoring shows cpu usage never exceeds the 200% mark. We ran ...
1
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4answers
938 views

Free alternative to NI Real-Time Hypervisor?

Is there an free alternative to National Instruments' NI Real-Time Hypervisor? National Instruments provides both a Windows and Linux versions.
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2answers
160 views

Running multiple copies of the script - using cores or simply slowing the server down?

I have a small compact PHP script that monitors a beanstalk message queue on a CentOS 5 server. When it gets a message, it starts to undertake a particular action and once complete, goes back to the ...
1
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3answers
958 views

mpstat not showing all CPUs on CentOS 5.5 (64 bit)

I have two Quad Core XEON processors. When I run "mpstat" then it just shows combine figure of all CPUs like this: 12:16:44 AM CPU %user %nice %sys %iowait %irq %soft %steal %idle ...
2
votes
1answer
254 views

PostgreSQL: sweet spot for core count

I have a few questions re. PostgreSQL. What is the sweet spot so far as number of CPU cores goes? Does anyone know when parallel queries will be implemented? WRT #2, I've seen benchmarks where ...
2
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3answers
3k views

Only 1 CPU Core is used in IIS 7.5

I have the following configuration. Quad Core Windows Server 2008 IIS 7.5 4GB RAM 32 bit I have hosted MVC 1 application in this server. But when running this application yields that only 1 CPU ...
0
votes
2answers
666 views

How many cores are available in this case?

We're managing 2 production server. One is RHEL4 and other one is CentOS5. In order to find the load average, I need to determine how many cores the server has got. I used the command $ grep cores /...
1
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3answers
3k views

How to get Windows Server 2008 VM to use multiple cores

I have a Windows Server 2008 machine running in VirtualBox. On initial installation, only one processor was made available, but now I want to run it as a multiprocessor machine. I have made all four ...
2
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1answer
344 views

Format Filename for Process Core Files per Session

Is there a way to change the core filename format per session instead of for the entire machine? On Linux the only way I can find is using sysctl as root: sudo /sbin/sysctl -w "kernel.core_pattern=...
2
votes
4answers
3k views

rsync with multi-core server should go faster than it goes. Am I wrong?

I'm launching a rsync simple command between two servers. Both servers have two eth interfaces on bonding. When I send a big file from one server to the other with rsync I reach 130M/s transfer rate....
3
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1answer
1k views

Many instances of sql express use all the same cpu?

Sql Server Express has the following major hardware limitations that has a consequence on performance: 1 CPU 1GB of memory My question is: if on a multicore machine many instances of sql server ...
0
votes
1answer
126 views

Single server investment for MPI and GridGain

Our department has $16k to buy computer hardware for high performance computation. The purpose is to do simulation and data analysis using multithreaded applications written with MPI or GridGain, so ...
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4answers
2k views

need high performance /bin/sort; any suggestions?

I'm looking for a high performance /bin/sort drop in replacement. I know there is pbzip2 for using multiple cores, but is there a similar product for /bin/sort? I've found distsort.sh, but I want ...
2
votes
1answer
425 views

Are Core 2 Quad CPUs interchangeable with Core 2 Duo?

I have some aging Core 2 Duo systems in need of an upgrade. The motherboard combinations are varied so I'm wondering, in a broad sense, are the Core 2 Duo procs interchangeable for Core 2 Quads or do ...
1
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2answers
2k views

How to make the most of JBOSS in multicore environments

I'm deploying jboss in a multicore system, where I'll have from 12 to 20 cores, and when I run the jboss server, I only see 1 process running, and I feel like it won't use more than one core... Is ...
6
votes
2answers
4k views

top in batch mode, need CPU% for every core

I know that after running top, I can press '1' and get a list of the CPUs with their utilization percentages. I suspect I can do this in batch mode too with the -b option, but I don't know how, and I ...
0
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2answers
903 views

Multicore license: ESX Vs Citrix Xenserver [duplicate]

Possible Duplicate: Can you help me with my software licensing question? VMware ESX is free for upto 6 cores per CPU only Vsphere Advanced version is required for 12 CPU cores does Xenserver ...
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2answers
177 views

SQL server availability issue: large query stops other connections from connecting

I've got a high-spec (multicore, RAID) server running MS SQL 2008, with several databases on it. I have a low throughput process that periodically needs a small amount of information from one of the ...
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1answer
1k views

Can Windows 2008 64bit make use of a 6 core cpu?

There's a version of AMD Phenom CPU which is 6 cores. Would Windows 2008 64 bit & SQL Server 2008 64 bit make use of all the cores? Any special settings of the OS or sql server needed to benefit ...
2
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2answers
989 views

Running a VM on a hyperthreaded CPU

Is it better to run a VM on a dual core hyperthreaded machine as a four core or as a two core VM. The hyperthreaded 'virtual' cores are not as fast as the real cores. Does this effect the VM?
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4answers
16k views

Virtualized CPU cores vs. threads

We've got a KVM host system on Ubuntu 9.10 with a newer Quad-core Xeon CPU with hyperthreading. As detailed on Intel's product page, the processor has 4 cores but 8 threads. /proc/cpuinfo and htop ...
0
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1answer
591 views

Q8300 Core-2 Quad vs X3360 Xeon

I'm looking at this ABMX server, and trying to decide on the CPU. I'm purchasing 2 servers, to be used as dedicated web and DB servers for a web site that has low traffic now but could ramp up ...
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3answers
290 views

2 - 2ghz quad core processors or 2 - 3.0ghz dual core processors

I'm trying to decide which spare server I should use to build a backup file/print server. These are both Dell PE2950 machines that haven't been used in about a year or so. One has 2 2.0 ghz quad ...
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2answers
267 views

Are blade server cores pooled?

Windows server software versions, vary in how many CPU sockets that they support. So if you have a normal server with 4 CPU sockets. If each CPU is a quad core (belive there is talk of 6 or 12 core) ...
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2answers
1k views

Xen - Make one guest OS have 2 cpus?

I have inherited a Xen setup. The dom0 and domU's are all linux. dom0 has 8 cores (or CPUs, I'm not sure). We want to run more stuff on one domU. I want to make it a multicore CPU, ie so that the domU ...
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votes
5answers
13k views

Why does my Windows 7 VM running under Linux' KVM not use all the virtual processors?

All I've had a problem on my server since I migrated one of my VM's from Windows 2008 Server to Windows 7 (ultimate): though I've assigned four cores to the VM and it even seems to see them, it seems ...
2
votes
3answers
11k views

More RAM or More Cores for a MySQL Database Server?

Here's the scenario, which I'd love your expert advice on: I've got about 2GB of database currently, maybe double that in a year. I want the optimum server performance for the dedicated DB server I'm ...
1
vote
2answers
684 views

SQL Server 2005 preferring a single core per cpu?

HI folks, I've a SQL Server 2005 system, with 4 cpus in it each with 4 cores. It's currently mainly utilising just 4 cores, ie 4 hover around 90% utilisation at peak and the others closer to 30%. I'm ...
1
vote
2answers
539 views

Two Xeon Processors with Different Clock Speeds on the Same Motherboard: Possible?

If I have a 2.0gHz Woodcrest 5130 Xeon and a 1.6gHz Woodcrest 5110 Xeon, can I put them both on the same motherboard? The machine in question is a PowerEdge 2950.
0
votes
1answer
755 views

Hardware virtualization support for Core i7 + P55

I'm considering a hardware upgrade from AMD Opteron 1216 to a Core i7 920 or Core i7 860. I want to know if Hardware Virtualization (VT-X) is supported? I found the spec sheets online which say yes. ...
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2answers
18k views

Disable CPU cores in bios?

Is it possible to disable CPU (Intel) cores in BIOS, and if yes what HP/DELL (others?) 1U/2U servers would allow this? It is becoming difficult to find new server hardware with dual core CPUs, most ...
2
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2answers
6k views

How to determine actual virtual CPU configuration of ESX image?

We have severe performance issues on an ESX client, but from where I am I cannot directly view the server configuration, yet I want to find out whether they set it up correctly. Running CPU-Z shows ...
1
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1answer
72 views

Red Hat AS 64-bit and multi core chip recognition

We're running RH AS 64-bit 4.6 and for some reason after installing a Hitachi SAN driver, the kernal only recognizes 1 CPU of the 8 (4 dual core Opterons). This server hosts an Oracle 9i database, so ...
5
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7answers
65k views

Sun Solaris - Find out number of processors and cores

Our SPARC server is running Sun Solaris 10; I would like to find out the actual number of processors and the number of cores for each processor. The output of psrinfo and prtdiag is ambiguous: $...
1
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1answer
186 views

Should a core be “reserved” for the OS in a multi-core (SMP) Linux system?

If I plan to run eight applications on an eight core machine and expect all applications to utilise 100% cpu, will the OS "get enough time" for its own tasks or should I instead run seven applications ...