The tag has no wiki summary.

learn more… | top users | synonyms

0
votes
3answers
67 views

Desktop CPU VS server CPU performance - is passmark relevant?

I am replacing my SOHO server (desktop-grade components) with a used server. A quad-core i5 is being replaced with dual quad-core Xeons X5355, here are the details: i5-2300, passmark score 5276: ...
0
votes
0answers
298 views

Slow PHP response times from Apache Benchmark

I have a VPS running Apache (prefork mpm) with 1gb RAM and 2 x Intel(R) Xeon(R) CPU E5-2620 0 @ 2.00GHz. I setup 2 test files to run through Apache Benchmark: htmltest.html (basic HTML file which ...
-3
votes
1answer
47 views

Comparing “user time” for same operations on different cpu

In my accounting system i limit using cpu-time by user. But on servers with different cpu's same operation may take different cpu-time. Now i want compare perfomance for my servers to introduce factor ...
0
votes
1answer
100 views

how to benchmark an ubuntu webserver using Jmeter and create a test report.?

I have an ubuntu webserver(LAMP) running a clients website.I have already created a test plan with jmeter, what i would like to know is how would we benchmark the server with Jmter and create a test ...
0
votes
1answer
314 views

What are the performance implications of Hyper-threading for single Nehalem+ CPU? [duplicate]

I am choosing between two models of servers, the major difference between them being the the availability of Hyper-Threading. Servers in question are SYS-E32-1 and SYS-E32-3 from So you Start (an OVH ...
1
vote
0answers
21 views

Benchmark Bootdisk

We have a number of Windows PC's and servers lying around the office and I am looking for a simple A/B way to decide whether to keep or scrap them. I can see a number of benchmark tools around from ...
4
votes
4answers
3k views

How to duplicate TCP traffic to one or multiple remote servers for benchmarking purposes?

Infrastructure: Servers in Datacenter, OS - Debian Squeeze, Webserver - Apache 2.2.16 Situation: The live server is in use by our cusotmers every day, which makes it impossible to test ...
0
votes
1answer
63 views

How to benchmark a whole storage infrastructure

I'm a 100% sure that I'm not the first one to consider benchmarking a whole infrastructure, but yet I haven't found any relevant information on how to face this challenge. As I guess we all know what ...
0
votes
1answer
106 views

What's the AB Command to Test 1000 Concurrent Visitors

How can I perform an AB test with 1,000 concurrent visitors in just a second? Say in 1 second, there are 1000 visitors on my site. And in another second there are 1800. In Another second again (3 ...
0
votes
3answers
143 views

File system benchmark that generates I/O from distribution of file sizes [closed]

I am looking for a file system benchmarking tool to test CephFS. This benchmarking tool has to: Generate a set of files (call it fileset) following a particular distribution, e.g., gamma, empirical, ...
1
vote
1answer
1k views

Apache Bench: SSL handshake failing directly related to concurrency level

I ran some tests on ab and when I use a concurrency level of over 155 I get the following: SSL handshake failed (5). SSL handshake failed (5). SSL handshake failed (5). SSL handshake failed (5). SSL ...
1
vote
1answer
113 views

A practical way to do healthcheck for a new server?

I am currently trying to do healthcheck for a new server in data center as a first QA before using by any application side. "What is the practical way and tools to check that the server is fine to ...
0
votes
1answer
370 views

Issue with Dovecot connection staying alive : memory or configuration issue?

I had a similar question posted a while ago, and I Thought it fixed my issue, but that was unfortunately not the case. I have a benchmark application which connects about 500 users to a Dovecot 2.2.5 ...
0
votes
1answer
127 views

Mysql general query log tool to play back queries in time?

I am trying to reproduce production activity in time for benchmarking purposes from the mysql general query log. I'd like to be able to use the date data from the log to reprduce the time intervals ...
2
votes
2answers
185 views

Are most webserver benchmarks useless? [closed]

There's a plethora of benchmarks out there, comparing Apache, nginx, lighttpd, LiteSpeed/ OpenLiteSpeed, Cherokee etc. Unfortunately, it seems that most of the benchmarks are of the "small static ...
0
votes
3answers
246 views

How to protect server from simple DoS attack

Please note I am NOT asking how to protect server from DDoS. What I mean is that if someone runs siege -c 1000 www.example.com on his VPS. That will result in my server serving thousands of requests ...
0
votes
1answer
254 views

I/O wait values on SSD vs. SATA disks

I have a task where I should benchmark two servers, one that has a RAID10 SATA configuration and second server has RAID10 SSD configuration. Both servers would be placed as gateway mail server and ...
3
votes
1answer
752 views

Apache AB (ApacheBench) : -no-check-certificate option available?

It seems there is no option to avoid this error : "Verify return code: 20 (unable to get local issuer certificate)". Is there a way to avoid issuer ssl check with AB (like wget's -no-check-certificate ...
0
votes
1answer
22 views

standard platform performance test

We're currently running our application on Heroku and are seeing the limitations of its platform (mainly due to the cost of scaling). We're looking to run our own setup on something like Amazon. ...
1
vote
2answers
256 views

Benchmark linux server?

I want to benchmark some servers but i have never done it before. Could someone suggest me some script or give me some guidelines for testing of basic, usual web server. What are the most important ...
1
vote
1answer
32 views

Use switch or direct link

We are thinking of setting up a high availability PostgreSQL server with master-slave configuration (possibly multiple slaves). Should we use a direct link between a master and a slave or let them ...
2
votes
3answers
217 views

How do I determine the number of seeks performed on Linux?

I have two programs that write to my servers disk. One I wrote, it does linear writes, it's writing data quickly. Another I'm benchmarking, it's writing data at a 3rd of the speed. It doesn't do much ...
1
vote
1answer
42 views

How benchmark server with load balancer

Hey I have four computers(with linux): two with mediawiki(mirror, both connected to one db) one with mysql one server(DHCP,DNS etc) I configured on my server load balancer and now hen I type in ...
0
votes
2answers
756 views

Testing disk performance of virtual machines

We're considering moving from physical dedicated servers to leased virtual machines. I understand that a common problem with virtual machines is the performance of the SAN they are running from. As a ...
2
votes
1answer
153 views

benchmarking a vps system

I've been having some performance problmes lately with my ecommerce package (ASP.net + SQL Server) running on Hyper-V based VPS so I am thinking about switching my VPS for a faster one. To evaluate ...
-1
votes
2answers
295 views

Is there an objective way to measure slowness of PC/WINDOWS?

We've a lot of users that usually complain about that his PC is "slow". (we use win XP). We usually check startup programs, virus, fragmentation, disk health and common problems that causes slowness ...
1
vote
2answers
633 views

Iozone: sensible settings for a server with lots of RAM

I have just acquired a server with: 2x quadcore Xeons 48G ECC RAM 5x 160GB SSDs on an LSI 9260-8i Before deploying the target platform, I'd like to collect as much benchmark data as possible, ...
0
votes
1answer
290 views

Benchmarking a webserver using AB won't parse images

I'm using AB to benchmark one of my servers but it doesn't seem to parse the images at all. If I use ... ab http://foobar.com/image1.jpg It works brilliantly, but if I use ... ab ...
1
vote
1answer
678 views

Slow connection times from remote server doing apache bench

I am trying to measure perfornace on nginx with ab. Doing the same ab from the local machine gives me about 10 times the requests per second as from a remote machine that is located on the same ...
2
votes
2answers
179 views

Local vs cloud benchmark testing — which is better?

I have tried using Apache Benchmark (ab) to test my server. I ran the same test twice -- once locally on my local Mac desktop and once on a Media Temple server I rent. EDIT: To clarify, I am testing ...
1
vote
1answer
524 views

Windows 7 Benchmarking Tools That Drive Microsoft Office Applications

Are there any benchmarking tools that can actually drive MS Office applications in Windows 7 rather than just running various synthetic loads? I'm looking to measure the impact on user experience ...
0
votes
1answer
214 views

Benchmarking TCP Server

I've written a very basic TCP-Server based on libevent. Now I would like to test the Server. Is there a tool which generates a lot of connections so that I can check how much concurrent connections ...
0
votes
1answer
83 views

What options exist to compare the performance of a Solaris 5.9 and a Linux (Redhat RHEL 5.X) Server?

What options exist to compare the performance of a Solaris 5.9 and a Linux (Redhat RHEL 5.X) Server? I have aging Solaris server and a replacement Linux server hosted on VMWare. A key success factor ...
5
votes
3answers
1k views

Generate 10 Gbps traffic across nodes

I want perform a network performance benchmarking test so need to generate a 10 Gbps traffic in the network. The nodes are running RHEL 5.x. Can anyone please point me out to suitable binaries etc. ...
17
votes
1answer
2k views

How do you do load testing and capacity planning for databases?

This is a canonical question about capacity planning for databases. Related: Can you help me with my capacity planning? How do you do Load Testing and Capacity Planning for Web ...
54
votes
3answers
11k views

How do you do load testing and capacity planning for web sites?

This is a canonical question about capacity planning for web sites. Related: Can you help me with my capacity planning? How do you do Load Testing and Capacity Planning for ...
-1
votes
3answers
302 views

Windows/Linux HDD benchmark [closed]

I'm going to compare, how windows virtual machines are working in QEMU/KVM environment and IO performance loss. So I want to measure HDD performance in Linux host and Windows VM. Is there any ...
3
votes
2answers
1k views

iozone benchmark results interpretation

I'm using iozone version 3.373 to benchmark NFSv4 and NBD, but the results are a bit weird! It says that outputs are in KBytes/sec but I am getting values such as 3,411,938 for random read. I am using ...
0
votes
1answer
202 views

Using Opennebula as an IaaS: Running benchmark accross all nodes, possibe?

Our current situation: We have one Opennebula cloud infrastructure consisting of a cluster controller and 6 cluster nodes configured and working. All Nodes run debian instances on top of a kvm ...
1
vote
1answer
4k views

Apachebench on node.js server returning “apr_poll: The timeout specified has expired (70007)” after ~30 requests

I just started working with node.js and doing some experimental load testing with ab is returning an error at around 30 requests or so. I've found other pages showing a lot better concurrency ...
4
votes
2answers
1k views

RAID0 (both hardware and md) slower than LVM?

I'm doing some benchmarking of nodes as we build out a distributed filesystem. Since files are going to be distributed and replicated across many nodes, we're using raid0 on the nodes themselves. ...
0
votes
6answers
4k 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 ...
1
vote
1answer
2k views

fio config to measure IOPS against provider SLA

So a provider has given us 500 IOPS/TB as their SLA standards for disk performance in a VMWare & RAID5-SAN environment. This is apparently measured with: 16kB average transfer block size 3:1 ...
1
vote
5answers
241 views

What is the best way to compare the performance of different servers?

I've got a site with a LAMP stack and I'm looking at moving to a new hosting provider (currently on a dedicated server and looking to move to a cloud provider). What is the best/most reliable way to ...
1
vote
1answer
1k views

best way of testing HD throughput for random reads on linux

Is there a benchmark program I can use to measure random read speeds of a vps without interference from the kernel cache? Also looking for something where you can change the read sizes say 4k-64k.
0
votes
3answers
953 views

What's a good free open source hard drive benchmark? [closed]

After a quick search on Freshmeat I found nothing. Anybody know of a good utility? I normally use time (dd if=/dev/zero of=newfile ...) to test write speed and hdparm -t to test read speed. Thanks. ...
1
vote
2answers
187 views

How to benchmark a fiber storage structure

We have an VMware structure, that uses a couple of physical hosts, a blade chassis and two SAN storages (a Fujitsu DX90 and a Fujitsu Fibrecat SX88). The two physical hosts have most of the LUNs on ...
3
votes
5answers
4k views

Simple Linux server benchmark?

I am working on a product which will run on customer's Linux servers. These systems vary in capability greatly and I'd love to have a single benchmarking tool which I could ask them to run to get an ...
1
vote
2answers
788 views

What's a good network benchmark test?

What's a good way to benchmark a network connection? I'm looking for something like the Windows Experience Index, but for my internet connection. For example, one place I visit has what seems to be ...
0
votes
1answer
144 views

Benchmarking MySQL on win7

I've setup a nginx server running php 5.3.6 and mysql 5.5.1.3. My computer is an AMD quadcore 9650, 4gb ram, 500gb 7200rpm HD. I ran the PHP MySQL Benchmark Tool v. 0.1, and got the following ...