-1
votes
4answers
501 views

How to explain to users the difference between Xeon and i7/Consumer CPU [closed]

I know that these 2 CPUs, given the same clock speed are still different due to many different factors, but realized I didn't really have enough knowledge to explain it clearly. I assume caching and ...
3
votes
2answers
101 views

Intel Xeon E7-4807 vs Intel Xeon X5690

We replaced our main line of business server with a new one. The old server had dual Xeon X5690s in it (2 generation old chip), the new server has quad Xeon E7-4807s. We expect processor performance ...
1
vote
0answers
48 views

IIS: how to determine most effective CPU throttling % [closed]

We have about 30-35 sites per server across 8-10 servers at a time depending on load, for a total of ~300 sites. The sites are more or less hosting slightly customized versions of the same .net web ...
0
votes
1answer
102 views

Trading Engine running on RHEL 5.x [closed]

Before asking question quick background about myself working at one of trading company this is my 1st job as sysadmin I have finish my RHCE no experience how production server work. In our company ...
0
votes
3answers
293 views

Linux server became extremely slow

I have a file sharing website, and my files hosted in a server with those system specifications: 32GB RAM 12x3TB 2x Intel Quad Core E5620 I have files in this server up to 4gb for each file. 446gb ...
2
votes
0answers
62 views

IBM xSeries 306 CPU Speed

I have an IBM xSeries 306. The system has been flawless until a week ago. It's a Pentium 4 Dual Core CPU. The CPU speed is 3.20 gHz. Now, it shows 4.26 gHz or 2.16 gHz when the POST screen comes ...
5
votes
2answers
273 views

vCenter Cluster CPU utilisation data inaccurate

We have quite a reasonably sized vSphere 'estate', with 80% of our Windows/Linux servers virtualised, running across six Datacentres. One of my challenges is medium to long term capacity planning, ...
1
vote
1answer
136 views

Why does my program run 2-4 times slower on a VPS?

I have a program (Node.js web application on Ubuntu) that loads in about 7 seconds on my home computer. Recently I copied it to a VPS, and there, it loads in 15-30 seconds. I am trying to find out ...
0
votes
1answer
755 views

Apache consuming too much CPU and memory

I am having some troubles with CPU loading an memory with Apache Web Server. We are running a Ubuntu Server 12.04 LTS on a Virtual Machine. Our server have the following specs: 8GB RAM; 4 vCPUs ...
-1
votes
1answer
42 views

Server Hardware/Settings for high traffic [duplicate]

I'm currently using a virtual server. 2 vCores 8GB RAM Bandwith 100MBit/s Ubuntu 10.04 But still this seems to be not enough to handle the traffic on my site. Normally a page needs less than ...
-1
votes
1answer
135 views

Kvm poor cpu performance

I have running some Minecraft Servers in a Qemu VM over Libvirt, and the performance is only half good than on real hardware. Libvirt started the vm over: /usr/bin/kvm -S -M pc-1.1 -cpu ...
0
votes
1answer
280 views

Intel Xeon or AMD Opteron is better for MSSQL 2012?

Is there any difference in performance, optimisations in MSSQL 2012 on Opteron and Xeon platform ? basically we are thinking about 2 x 6 Cores Xeon E5-1660 or 2 x 16 cores Opteron 6380
0
votes
2answers
74 views

When upgrading hardware to increase program performance, which should I consider first CPU, RAM or both? [duplicate]

I have a simple script that I wrote in PHP (which, after reading lots of QAs seems to have less than desirable memory management). It's an extremely small script that loops through configuration ...
8
votes
4answers
2k views

How can I troubleshoot high Kernel time?

I have unusually high Kernel time on my CPUs as shown in task manager. What are some ways I can troubleshoot this?
-1
votes
1answer
2k views

GlusterFs - high load 90-107% CPU

I try and try and try to performance and fix problem with gluster, i try all. I served on gluster webpages, php files, images etc. I have problem after update from 3.3.0 to 3.3.1. I try 3.4 when i ...
0
votes
1answer
148 views

*tiny* SOHO fileserver upgrade recommendations in 2012? [closed]

I say 2012 as we'll likely be buying last year's hardware. We're non-profit (a two-man operation), and this purchase isn't on project funding, so we're cost-restricted, but I always advocate for ...
6
votes
1answer
815 views

KVM/Qemu, Ubuntu: Why do more guests CPUs enhance Disk-I/O rapidly?

We have an Heartbeat/DRBD/Pacemaker/KVM/Qemu/libvirt cluster consisting of two nodes. Each node runs Ubuntu 12.04 64 Bit with the following packages/versions: Kernel 3.2.0-32-generic #51-Ubuntu SMP ...
-1
votes
1answer
518 views

High CPU Usage in windows server 2003

In one of our production servers the CPU usage is 100% and thus some of the backup jobs failed. In windows server 2003 cms.exe shows : 50%, tomcat_3.exe : 25%, and tomcat_1.exe : 25%. Please help me ...
3
votes
1answer
2k views

Disabling CPU management

If I add the following processor.max_cstate=0 to the kernel command line for boot up, does that disable all CPU power management and throttling? I also found: ...
-1
votes
1answer
448 views

MySQL runs at >=100% CPU, heavy disk I/O?

Recently my Debian Linux server has been experiencing slow web server response times. I've investigated and it seems that MySQL is the culprit, yet there are no slow queries indicated by the slow ...
-1
votes
4answers
254 views

Does shutdown idle VMs improve the performance?

Often our team members are coming to me with a compliant that their VMs are slow. Our team members suggested to shutdown some of the VMs temporarily and try to access the VM. But most cases that ...
2
votes
3answers
2k views

Very high CPU and low RAM usage - is it possible to place some of swap some of the CPU usage to the RAM (with CloudLinux LVE Manager installed)?

I had to install CloudLinux so that I could somewhat controle the CPU ussage and more importantly the Concurrent-Connections the Websites use. But as you can see the Server load is way to high and ...
1
vote
1answer
380 views

How does Oracle Database Standard Edition (One) benefit from running on a dual CPU server?

I am evaluating the impact of additional CPUs on Oracle database performance. I am looking to license Oracle Standard Edition One (SEO, being most cost effective) or Oracle Standard Edition (SE). As ...
-1
votes
1answer
114 views

Is PostgreSQL database optimised for any particular CPU? [closed]

This question may sound strange, but some CPU have instruction sets for virtualisation technologies, while some non-related software can use those sets, or even GPU to improve their performance. So, ...
1
vote
1answer
111 views

Server Processor Selection Criteria & Profiling

We are purchasing a server to run various Bioinformatics software packages. The main package on our test machine is multi threaded and is totally CPU bound, the IO & RAM are not limiting ...
0
votes
1answer
990 views

What is the difference betwwen two Xeon CPUs with stepping 11 and 7?

Would you please explain me what kind of differences between these two CPUs have: 1) processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : ...
0
votes
6answers
3k views

How come Core i7 (desktop) dominates Xeon (server)? [closed]

I have been using this performance benchmark results to select what CPUs to use on my web server and to my surprise, looks like Core i7 CPUs dominates the list pushing Xeon CPUs into the bush. Why ...
4
votes
1answer
2k views

cat /proc/cpuinfo shows 3.00GHz model but 1400.000 cpu MHz?

I ran this command on ssh to see CPU info: cat /proc/cpuinfo And it says: ... vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Pentium(R) 4 CPU ...
3
votes
2answers
132 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 ...
0
votes
1answer
95 views

Server Configuration

Recently we have got problems with performance in SQL Server 2008 Enterprise. One idea to solve it is to scale up, i.e. improve hardware of the server. SQL Server 2008 has 2 instances that are ...
1
vote
3answers
613 views

Hyper-V not scaling processor access for Windows Server 2000 VM

I have a Dell R710 rack hosting several VM's: Windows Server 2008 R2 w/ Hyper-V dual Xeon 5520's @ 2.26 GHz 32GB mem teamed nic (4 gigabit NICs) all VM's are on their own set of mirrored SAS disks ...
0
votes
0answers
239 views

How to get the CPU speed (which maybe variant) on the fly?

I'm curious how to evaluate the current speed of a Amazon EC2 t1.micro instance, as there's burst time slots, the current CPU speed is not static determined, as shown in /etc/cpuinfo. Is there some ...
0
votes
3answers
233 views

Bad CPU/RAM Combination

We've got a system that is running RHEL 4 AS 32 bit (2.6.9-42.ELsmp #1 SMP) with 20GB of RAM and 8 dual core processors that runs a Oracle 10g database. This is overkill, but I am having trouble ...
2
votes
5answers
400 views

Does Overclocking Anything Shorten It's Life? [closed]

From a business standpoint... If intel could take a 3.0 GHz CPU, and overclock it to 4.0 GHz - whilst still covering their warranty they would do so. It's absolutely free and makes the chip perceived ...
0
votes
3answers
181 views

finding the bottleneck

I have a process running that is opening TIF files. Each TIF file is just one regular page and they are maybe 100 kB each. Every time he opens a TIF file it tries to read a barcode in a specific area ...
3
votes
3answers
2k views

High Load - Low IO - Low CPU usage

I have a system whose load is rather high. As you can see from the top output below, CPU usage and I/O is negligible: top - 17:31:59 up 4 days, 2:34, 2 users, load average: 1.00, 0.99, 1.00 ...
1
vote
3answers
420 views

32 core multithreading performance for ASP.NET 4.0 and MS SQL 2008 Web Edition

Recently my user count has increased and my current server has started to become insufficient. I am thinking about buying 4 x 8 = 32 core AMD CPUs using dedicated server. I wonder how good ASP.NET ...
2
votes
2answers
225 views

Performance difference between E5405 and X3460

I'm looking at purchasing one of two servers. They're of similar specs except the CPUs. Server 1 comes equipped with 2 x E5405 and server 2 only has one X3460. I've got a few servers that are ...
5
votes
3answers
186 views

How to compare CPUs?

What are the metrics and their priorities to compare task specific performance of various CPUs?
1
vote
3answers
251 views

Hardware comparison : P4 2,8HT or Atom dual core 2 x 2(HT) x 1,66 Ghz

i have a dedicated server (on which <10 websites from 10 visitors to 500 visitors per day) : PIV 2,8HT 2Go RAM 1x80 Go SATA 100 Mbs mutualized / 10 Mbs dedicated for the same price I ...
6
votes
3answers
2k views

Monitor system CPU / system calls in Linux

I have a couple processes that are eating up a lot of system CPU time (as determined by looking at vmstat). Is there an easy way to find out what kind of system calls are being made? I know there ...
1
vote
1answer
730 views

Does Windows performance degrade past a certain level of CPU utilization?

Is there a recommended average CPU threshold in running Windows boxes based on experience in other shops? Background: We are running with Windows Server 2003 32-bit OS. Servers are handling a major ...
4
votes
5answers
444 views

is there anyway to know if your supposedly fully dedicated server is really a virtually resource-shared machine? [duplicate]

sometimes I feel my server not responding as smoothly as I would expect (i have a Intel(R) Xeon(TM) CPU 2.80GHz Quad Core), given that for example, the 'top' commands reports a low load < 0.5, CPU ...
2
votes
4answers
1k views

Linux testing - CPU & disk

I am a bit rusty lately. What is the standard way to test CPU and disk I/O these days?
0
votes
3answers
522 views

how can i increase cpu utilization on a aix unix p5 server

i need to make cpu utilization increase to about 90%
1
vote
2answers
2k views

Server benchmarking, comparing a 1ghz opteron/1.7 xeon to other cpu's

I'm trying to gauge CPU performance, comparing chipsets (in general terms if possible). So if a amazon ec2 'cpu' is: "One EC2 Compute Unit provides the equivalent CPU capacity of a 1.0-1.2 GHz 2007 ...
4
votes
4answers
491 views

Performance monitoring from guest OS

I was wondering if there is any tools that can be used inside of a VM and is aware of working in virtualized environment. It can be little misleading using Linux top tool without regarding limits of ...
4
votes
5answers
12k views

How to determine max CPU speed of a processor in Linux?

I have a few 2.6 Linux boxes, running mostly RHEL and SUSE. I know for certain the RHEL machines have power saving on via the cpu governor. When the ondemand governor kicks, /proc/cpuinfo is showing ...
2
votes
2answers
3k views

Throttle down CPU speed of VMWare image

Is it possible to throttle down the CPU speed of a VMWare image so that i can simulate a slow computer and test how my software works on a slow machine? Or is there any other way to do this? Im using ...
2
votes
3answers
368 views

How to (seriously) troubleshoot high CPU/Memory issues in MacOS X?

In Windows I have Sysinternals Process Explorer but for Mac the built-in "Activity Monitor" is not enough. I would need to figure out for each process: Files open CPU usage for each thread (in real ...