Linked Questions

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 ...
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 ...
14
votes
1answer
493 views

Sanity check on 40TB server configuration

I've got 40 years in computing, but I've never had to build a server quite like this one, so this might be a n00b question. I have a client that is going to offer ultra-high def music files for ...
9
votes
2answers
948 views

How much data does Linux read on average boot?

I wonder how much data in total does a freshly installed vanilla Linux system (like 32-bit CentOS 5.10) read in order to get to a virtual console shell prompt? You know, reading all the configuration ...
6
votes
2answers
249 views

Are there any features in Linux that are essential for hosting Ruby on Rails?

I'm on a project where we're going to be hosting a Ruby on Rails app on a Linux server we own. Are all flavors of Linux equally capable of hosting Rails apps? If not, what features are present in some ...
4
votes
2answers
75 views

How do I understand my CPU usage on a DNS server?

I have read and understood Can you help me with my capacity planning?, but I'm not sure I understand what my next steps are in a DNS server scenario. I think my CPU loads are high or that I might be ...
4
votes
3answers
545 views

How much ram do I need to use a 4gig MySql Database? [duplicate]

I'm having a really hard time figuring out how much ram I need for this database. Right now it's one table that is mostly filled with text content and has +40k entries. mysql> show table status; ...
3
votes
2answers
127 views

When should I consider a dedicated server instead of cloud VPS?

Currently I have a web app running where I have 9 VPS servers connected to a Load Balancer. As my web app has been getting traffic, I've been purchasing new VPSs to handle the load. Managing so many ...
3
votes
1answer
578 views

How to forcast the spec of a Linux load balancer?

I would like to build a Linux load balancer with SSL off load with sticky sessions. I would like to do this with either Pound or Pound and HAProxy. I haven't done this before, and I have been wanting ...
3
votes
2answers
545 views

Planning trunk capacity for multiple GbE switches [duplicate]

Without measuring throughput (it's at the top of the list; this is just theoretical), I want to know the most standard method for trunking VLANs on multiple Gigabit (GbE) switches to a core Layer 3 ...
3
votes
1answer
366 views

Throughput; capacity planning help for C10K like design [duplicate]

I am designing a network service in which clients connect and stay connected -- the model is not far off from IRC less the s2s connections. I could use some help understanding how to do capacity ...
2
votes
1answer
1k views

How much free memory should I have on my webserver? [duplicate]

I have a webserver that's currently hosting two Wordpress sites and some java-based collaboration software. The server has 2G of memory and is currently using about 1.8G of the available memory. ...
2
votes
2answers
739 views

Performance of Asterisk Telephony System on Linux [duplicate]

I needed some idea on the max concurrent calls a standard Asterisk Telephony System can handle on a 64 bit Linux server of 4GB RAM, 4 CPU cores and 10K RPM RAID0 HDD? Most of my calls will be reads. ...
2
votes
3answers
48 views

Daemons on a web server - best practices [duplicate]

This might be an obvious thing to seasoned Ops but, please, bear with me on this one (I'm a dev with the side effect of having to manage our servers too). At the moment, one of several servers (load ...

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