Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [benchmark]

Benchmarking is the process of gathering data about the performance of a system in different scenarios to measure the impact of changes to the system, to compare the system with other options, or to determine maximum capacity.

Benchmarking is the process of gathering data about the performance of a system in different scenarios to measure the impact of changes to the system, to compare the system with other options, or to determine maximum capacity.

Benchmarking is a multidisciplinary process and can require management, engineering, operations, data science. and user experience expertise.

A key concern when benchmarking is making sure the tests performed are analogous to how to system is actually used. When benchmarking a server, the following metrics may be considered (in addition to countless others):

  • Ping response time
  • Average Load
  • Number of Dropped Requests
  • Number of Concurrent Connections Possible
  • Power Consumption
271 questions
1
vote
1 answer

Test Centos performance

I have a VPS with 4GB Ram and Core17 processor. The server its working really bad, the basic commands like w, ls or top have a serious delay and the page speed from google webmaster is way up. Of course, the tech team say that everything its fine,…
keepwalking
  • 117
  • 1
  • 6
1
vote
1 answer

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 http://foobar.com/index.php It doesn't request the images at all…
Lars
  • 568
  • 2
  • 8
  • 18
1
vote
1 answer

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 network. Local results: Server Software: …
merlin
  • 2,033
  • 11
  • 37
  • 72
1
vote
2 answers

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 (i.e. response time) of various system configurations…
Keeloid
  • 95
  • 6
1
vote
1 answer

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 the server can handle?
user109343
  • 11
  • 2
1
vote
3 answers

Why is static page response time going up with increased concurrent requests

I don't understand the performance I'm seeing from apache. I would expect that more concurrent apache requests would perform better than fewer, up to a point, but beyond 3 concurrent requests, overall performance is flat. For example, I see the same…
Dan Benamy
  • 205
  • 1
  • 9
1
vote
3 answers

Windows Benchmarking Software

I want to run benchmarks on several machines all running different versions of Windows (XP, 2003 Server, 2008 Server, Vista). Most of them are virtual machines, so I'm more interested in the memory/processor/disk access benchmarks than things like…
user10719
1
vote
5 answers

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 compare performance of my site on the different…
James Simpson
  • 1,601
  • 2
  • 14
  • 30
1
vote
1 answer

virtio /proc/net/dev

we are doing some VM (citrix-xen) / real machine benchmarks at university and ran accross a strange behavior. we used netperf's stream test to meassure the performance between the two machines. both resulted in the same value of 940 mbit, but the…
kazu
  • 11
  • 2
1
vote
2 answers

Cloudflare hurting performance

I recently set up cloudflare on a new site I'm about to launch. I ran some benchmarks with it on and with it off and the output is extremely troubling. Does this make sense to anyone? Before when I ran the Apache benchmark utility with this: ab…
dbers
  • 158
  • 4
1
vote
5 answers

How can I generate different levels of disk load on a Linux (2.4) system

I need to find out about the impact different levels of disk I/O have on my application. To do so I am looking for a way to generate different amounts of disk load while I am running the application in a benchmark mode. We currently get complaints…
Daniel Schneller
  • 314
  • 3
  • 11
1
vote
3 answers

How do I check how many users can a server handle before going online?

Possible Duplicate: How do you do Load Testing and Capacity Planning for Web Sites I'm moving a site from shared hosting to a VPS, which I have set up. I've made a change to my hosts file so that I see the site on the new server - it works ok as…
Tootsie
  • 13
  • 1
  • 3
1
vote
2 answers

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.
incognito2
  • 915
  • 4
  • 13
  • 16
1
vote
2 answers

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 the SX88 and the blade chassis as most of the LUNs…
Helder
  • 25
  • 5
1
vote
2 answers

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 a terrible connection. Pages load slow, etc. but…
Michael Haren
  • 1,301
  • 6
  • 17
  • 31
1 2 3
…
18 19