Optimization is the process of modifying a system to make some aspect of it work more efficiently or use fewer resources.

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25 views

How to speed up Outlook 2007 / Exchange 2003 mail searches?

Our current setup is the Outlook 2007 client connected to an Exchange 2003 server. We run the client on 2K3 terminal servers and have disabled PST files. There is quite a large volume of emails stored ...
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0answers
19 views

samba over NFS large file

For several months we encounter problems delays : we have a server ( os: ubuntu server 12.04 ) with samba and ldap service . Our clients are on Mac, Windows and Linux client ubuntu . Huwaei NAS ...
0
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2answers
46 views

Optimize images on CentOS server [closed]

I have a huge directory of images on a CentOS server (~65gb). The images are predominantly jpeg's but theres some png's and a couple of gif's. Here's the annoying and weird part - the images are all ...
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2answers
26 views

WordPress with APC Cache - MySQL Load

I've installed APC on my server and the load is cached very good with it, no problems so far. The number of concurrent users is good < 90 but after 100 it gets shaky. Htop shows a constant use ...
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2answers
56 views

MySql table optimization causing more problems than it solves

I have a heavily accessed table corresponding to user's private messages, with over 10 M rows. When I run the user deletion process, obsolete messages are deleted from the table, typically more than ...
-3
votes
1answer
38 views

Choosing between which HTTP, DB, Optimization tools on a VPS server [closed]

I am finally moving from a Shared hosting to a VPS hosting on Digital Ocean. Since now I have control of what I can install, I would like to know which of these are preferred to install. Web Server ...
1
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1answer
64 views

Directadmin Apache server finetuning advice

I currently have a dedicated server from which I provide shared hosting for some clients of mine. Server specs AMD Athlon(tm) 64 X2 Dual Core Processor 4000+ 4GB DDR RAM 1x Seagate ...
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2answers
65 views

mysql configurations for best performance

I have a huge magazine on dedicated server(1 website only on the server), all time the server have big load, "top" tool show me that the user "mysql" make this load: PID USER PR NI VIRT ...
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2answers
47 views

Centos 6 webserver - best use of spare memory [closed]

Just after any quick easy suggestions about where I should try tweaking my web server to use some of the spare memory and reduce CPU usage. Sorry if I'm a bit vague, but this isn't really my area. I ...
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0answers
247 views

Nginx “ssl_stapling” ignored, no OCSP responder URL in the certificate

I'm trying to setup OCSP stapling on Nginx because I ran a test and it suggested the idea and well, you know. https://sslcheck.globalsign.com/en_GB/sslcheck?host=aj2jewellers.co.uk#176.58.103.165 ...
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2answers
213 views

PHP + Apache long wait time

I've run into a bit of a brick wall with troubleshooting my dedicated websever. Recently, my website spiked with the amount of request/per second and it crashed. The box original had 8GB of RAM, 8 ...
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4answers
162 views

Network Latency over WAN

Let me take a minute to explain the background of the challenge I am facing. My company has offices in US and Asia. The users work on large CAD files. The office in US has NAS (Network Attached ...
2
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1answer
48 views

Linux Kernel setup: is it good idea to enable everything in Cryptographic API?

There are several implementations for some algorithms, which use CPU instructions which may or may not be available on current system. Is it good idea to just enable (in kernel, not as modules) all of ...
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1answer
42 views

Centos help optimize Apache and kernel

I am looking for tips/articles on how to optimize CentOS for production use I will have 2 servers 1 web server where haproxy will also running Haproxy will be in front of apache and will be proxying ...
1
vote
1answer
56 views

Drop caches in Linux

I have an embedded Geode-based application server with 512MB RAM and I'm about to try to maximize free memory during applications workload, which uses MySQL database 5.5 with InnoDB quite ...
0
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1answer
76 views

Apache performance is really heavy [duplicate]

My company runs a heavy traffic site, about 150k daily. Each time after apache restarted, site load is very fast. The problem always comes after a couple of hours. Server config : Intel Core ...
1
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0answers
213 views

High latency on domain with CDN

High latency on domain with CDN I have problems with latency on my server, these are the tests I made with blitz.io Latency album http://imgur.com/a/bCmwo I would uploaded images here but it ...
1
vote
1answer
73 views

MySQL occasional non-responsive only on one database

I have an issue that occasionally (once or twice a week, not necessarily during peak hours) that queries on a certain db (the db of the largest of my sites) suddenly stop responding for about an hour. ...
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votes
1answer
80 views

Can postgres go faster? [closed]

My question is simply: have i missed any configuration settings that might make postgres achieve better read throughput? Background I'm modeling a very simple twitter program. My schema has only 3 ...
-1
votes
1answer
44 views

What will be the best mysql settings for 3gb server? [duplicate]

I have a 3GB server with the below settings. The issue I am facing is when I pull some records through the admin panel of my site, sometimes it works well, but most of the times it process very slow. ...
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votes
4answers
243 views

What is the *optimal* virtual memory configuration for this server? [closed]

I am maintaining a Small Business Server 2003 (x86) server, that was originally installed and configured by someone else in early 2009. Recently, although we have never had any obvious memory-related ...
3
votes
2answers
171 views

What's the optimal server configuration for fastest inserting in a MySql database in this scenario? [closed]

I have a MyISAM table partitioned by range with 90 partitions representing the last 90 days. I expect this table to receive somewhere between 500 million to 1 billion records before i start rotating ...
-1
votes
1answer
114 views

Server optimization for long running script [duplicate]

I have a system running on a remote VPS whose main feature is a long running script (it could run for about 10 hours, depending on the user input). The following are some of its features: Database ...
1
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1answer
206 views

MySQL MyISAM multi-core optimization

I've noticed that our app does not respond to requests when a demanding request is in execution. Running top seems to identify the source of the problem: top - 13:54:25 up 1 day, 13:43, 2 users, ...
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0answers
37 views

eAccelerator causes the server to deliver gibberish data

I'm trying to integrate eAccelerator into my server infrastructure using the ELS script. But when I activate it, it causes the gibberish data (shown below) to appear instead of the real content. There ...
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2answers
57 views

Can my mysql server be fully tweaked? [closed]

I'm on a quadcore CENTOS 5.9 i686 standard running WHM 11.36.0. It's a dedicated LAMP server with lots of websites, most of which are using databases. I'm monitoring the server using Munin and notice ...
1
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1answer
561 views

Tuning MySQL of 1.3 G DB, 8GB Ram, High IO Wait

I am having MySQL database of size 1.3 GB on 8 core virtual machine, 8 GB of memory and I am having troubles optimizing the configuration. There is a lot of small rows and lot of joins going on. I've ...
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2answers
245 views

virtual memory optimization on exchange server 2010

Hi I did some Google searching but came up blank I know mycomputer/computer > Properties > advance System settings > Advance[tab] > Settings[Performance] > Advance [Tab] > Change > customsige ...
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1answer
268 views

mysql database config optimization

Have a heavily trafficed database running mostly innodb and would like to better optimize the mysql config. Server has 32Gb ram and the biggest tables are ~18Gb innodb. I think I have done all the ...
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2answers
154 views

Would moving images to a CDN significantly reduce my CPU/memory load?

I am trying to reduce the cpu/memory load on my web server, and I am wondering if I should host my images on a CDN instead of my webserver. Does serving these images take up much CPU/memory?
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votes
1answer
97 views

Recommended resources for server tuning and security checklist for production Linux server deployment [closed]

There are many questions on server tuning and security checklist are being closed. So, I am not asking for the exact detail. Please point me to the resources you find it is helpful (no matter web ...
4
votes
2answers
325 views

How can I handle big traffic spikes on my dedicated server?

I have an E-Commerce site, which gains a sudden peak of very high traffic when I turn on different ads campaigns. From this moment on, my current dedicated server (Hostgator, 4GB Memoray, 100mbps ...
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1answer
377 views

Centos MySQL optimization 4gb ram

I am using Centos 6 64bit on vps with 4gb ram. 1 wordpress website and 2 wallpapers script websites. Wordrpess have 10k visits daily. Site is slow. My.cnf # Example mysql config file for large ...
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3answers
704 views

Optimizing VPS Server Memory

WHAT I'M TRYING TO DO The server resource limits sometimes run tight; to help prevent memory exhaustion, I've had to limit server processes. I'm needing a little expert help to know if I'm on the ...
0
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1answer
100 views

Nginx as a reverse proxy + Apache or completely cut out Apache? (WordPress Multisite)

I am starting a WordPress multisite network with domain mapping and I am trying to think through my server set up. Right now, I only have one medium sized VPS but hopefully I will need to add more ...
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votes
1answer
513 views

How to speed up a MySQL Import [closed]

I posted a related question on askubuntu.com, but this may be a better place and way to ask it. I'm working on a way to speed up a db import. Currently the import is taking a week, give or take a few ...
0
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2answers
530 views

Optimize Windows file access over network

At my company I frequently need to access shared files over a Windows network. These files are located on the other side of the planet, so I guess the file share goes through some kind of VPN over ...
0
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1answer
85 views

Windows 2008 R2 VPS resource footprint reduction

Given a Windows 2008 R2 Standard VM with: 4x vCPU Intel Xeon E5620 1GB RAM 15GB HDD What can I do to reduce the amount of CPU/RAM/HDD utilised by the OS? The VM will be used exclusively as a web ...
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0answers
196 views

How to manage postgres server cpu load and idle in transaction warning? [closed]

I am using postgres db with django app. I created two daemon process out of it, one is used for scheduling some tasks(APScheduler) and other one is to dump events into database subscribing them via ...
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0answers
91 views

Performance optimization of Amazon EC2 site

I have a site hosted on Amazon EC2 (USA West) running on a micro-instance. Unfortunately these are the load times as reported from Google Analytics Avg. Page Load Time (sec): 9.94 Avg. Redirection ...
3
votes
4answers
368 views

Optimize Apache performance

I'm looking for ways to optimize our current web server hosted in-house. I'm trying to supply as much relevant information below. Please let me know if you would require additional information in ...
0
votes
1answer
583 views

MysqlTunner and query_cache_size dilemma

On a busy mysql server MySQLTuner 1.2.0 always recommends to add query_cache_size no matter how I increase the value (I tried up to 512MB). On the other hand it warns that : Increasing the ...
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0answers
273 views

Extremely slow response when connecting to remote MySQL database (LAMP Server)

I installed a LAMP server and enabled MySQL remote connections but I'm experiencing really bad response times when connecting to the database remotely from a WordPress install. I've been looking ...
0
votes
1answer
138 views

How to delay and queue commands for execution at a later time? [closed]

My site receives numerous uploads and I can't afford to waste cycles and time processing them on the spot (e.g., trimming, optimizing, resizing, etc.). What technologies exist to delay and queue these ...
1
vote
1answer
245 views

Monitoring outgoing bandwidth of application

I currently have a VPS that is consuming a ton of outgoing bandwidth and I am trying to drill down to where this may be coming from. Does anyone know of a logical way to go about finding out which ...
1
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0answers
40 views

Apache + mysql + varnish eating all server memory with low very traffic [duplicate]

Possible Duplicate: Why does Red Hat Linux report less free memory on the system than is actually available? I've just installed Varnish in front of Apache2 to run a Magento ecommerce. Now ...
0
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1answer
162 views

WAN Optimization for Small Office/Home Office

I have been reading up on WAN optimization for the last while, mostly out of interest of speeding up my own internet connections, but also to speed up the office internet connection. At home, I have 2 ...
0
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3answers
285 views

What's the difference of running ab locally and remotely?

I was benchmarking my site with apache ab and I noticed that the response time had big differences when running ab on the server and running ab on a client box remotely. So what's the biggest ...
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0answers
103 views

Nginx for a site allowing downloads

My friend have a site that allows users to download files.However the moment one guy start downloading server load change from 0.00 to 3.50 in a matter of minutes.Nginx and php-fpm reach D state and ...
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3answers
91 views

Lots of files being used by blank web page. What are they?

I am trying to optimise a website and I was using the network waterfall facility in Google Chrome. When I looked at the results there were lots of files which I didnt recognise. I first thought they ...