The speed tag has no wiki summary.
0
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3answers
63 views
Why aren't local requests almost instant?
This is purely out of curiosity, but with every local server I've ever setup, there has always been a 0.5-2 second delay until pages are displayed.
Just as an example, I've setup a completely blank ...
1
vote
2answers
46 views
Why are 20 requests executed in parallel slower than 10x2?
This question bothers me, and I do not think I am going to find the answer myself, so I thought it might be best to look for help.
When I do:
root@server1:~$ ab -n 20 -c 20 ...
-2
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2answers
40 views
Checking serve speed, using ping test? [closed]
To cut a long story short I'm locked into a cheap hosting package for a 2 years, and on their site they say there hosting is "fast and reliable" (its not).
I'm looking to get some server speeds stats ...
1
vote
1answer
87 views
Performance issues with self-built NAS
I set up a little NAS system for my personal use. It's an Ubuntu system running on a fan-less Atom-powered mini ATX mainboard which I extended with a usb3 pci card to get best possible performance for ...
-1
votes
1answer
28 views
php: Does memory_limit setting influence running time / speed?
If I increase php memory_limit could that increase the speed of a process?
Or if there is more memory allowed than needed the extra resource will not be used by the system to increase speed of the ...
2
votes
1answer
51 views
How would you configure a dedicated static media HTTP server?
Now that more websites are switching to a set-up with nginx in the front and Apache in the back (or a different webserver doing a better job at serving static media than Apache), I was wondering the ...
0
votes
1answer
45 views
Windows Server 2008 r2 Server VPS: every connection capped at 500kb/s
I have a strange problem on a Windows Server 2008 r2 Server based VPS. My provider gives me unmetered and unlimited bandwidth, and obviously full root access (I administer the machine via RDP without ...
1
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2answers
74 views
Does lshw list the “factory” speed of a memory module or the effective speed and how to find the former?
I hope I phrased this correctly. lshw gives:
description: DIMM Synchronous 400 MHz (2.5 ns)
product: M378B5773CH0-CH9
vendor: Samsung
physical id: 0
slot: ...
5
votes
1answer
355 views
Speed of different Linux distros - why the difference?
I have a piece of multi-threaded software which runs at different speeds under the latest ubuntu server, redhat enterprise and CentOS - all installed on the exact same server for comparison.
Ubuntu ...
1
vote
2answers
112 views
SMB SSH tunnel using putty client painfully slow
I've set up an SMB SSH tunnel using putty SSH client to edit my webpages directly from the server on my windows machine (also because my virtuazoo server doesn't allow NFS).
Even setting blowfish as ...
-1
votes
1answer
47 views
building computer with fastest clock (overclocking) [closed]
In my job I prepare loads of data but the program I am using is barely multi-threaded, so - even I am on very fast dual processor machine - I do loads of staring at frozen interface when performing ...
4
votes
1answer
239 views
Command line speed test
There are several sites that give you decent speedtest metrics (DSLReports, Speakeasy; PhonePower even has additional VoIP-related metrics). I want to get these metrics on a periodic basis. Ideally, I ...
0
votes
0answers
87 views
Limit download speed,bandwidth, and connections for files on linux?
I have mod_cband installed for my Apache server, but I have no idea how to make it do what I want.
This is what I need it to do (per ip)
Limit download speed while downloading a file through http ...
2
votes
4answers
185 views
Downloads pause and time out frequently
I'm a new systems and network admin. My experience has been in the hardware and software of systems and servers, the network part is pretty new to me. I'm familiar with plugging numbers into network ...
2
votes
2answers
81 views
Website load speed around the world
I would like to test a small website's loading speed around the world.
What are some relevant websites/tools that you find useful for this test?
0
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2answers
64 views
How do I get the internet speed that of a hosting company? [closed]
I own a popular website, heavy on traffic and space.
I can't solely trust my hosting company with backups, plus - hardware is expensive to rent. So I am looking into hosting the website in-house. I ...
2
votes
6answers
218 views
Effect of distance from server on page load speed
I measured the load speed of a static image file severed by nginx from my server (using pingdom service). The server should normally process this request within few seconds. My server is located in ...
0
votes
3answers
202 views
How much bandwidth speed do I need? [closed]
I have a 100 megabyte (MB) file, and I have a 30 megabit/s (Mb) dedicated bandwidth speed on my server.
How many people could download this file at the same time, with acceptable speeds?
What ...
2
votes
1answer
388 views
Apache on Win32: Slow Transfers of single, static files in HTTP, fast in HTTPS
I have a weird problem with Apache 2.2.15 on Windows 2000 Server SP4. Basically, I am trying to serve larger static files, images, videos etc. The download seems to be capped at around 550kB/s even ...
1
vote
3answers
109 views
Optimization advices to server a lot of small files
I have nginx+php-fpm+apc setup. No DB.
In data folder i have a simple php script that when called with filename parameter checks if the file exists, if it does then it gives it away, if not then it ...
17
votes
5answers
1k views
Extremely fast booting server
I'm changing the way that our DHCP/DNS stuff works at work. Currently we've got 3 DNS servers, and a DHCP box. All of them are VMs.
There's a circular dependency where stuff booting requires NFS, ...
-3
votes
2answers
80 views
How to speed up the display of a website
We have a Website on a dedicated server. Here are the server settings:
GenuineIntel, Intel (R) Core (TM) i5-2400 CPU@3.10GHz
Version Plesk v10.3.0_build1012110629.18 os_Ubuntu 10.04
OS Linux ...
1
vote
1answer
306 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 ...
0
votes
1answer
54 views
is there any configuration or setup for ftp(file transfer protocol) SPEED on windows server 2008 (r2)
i am using windows server 2008 (r2) and CuteFTP Pro 8.3.4 for transfer files to my server.
on windows server i have iis,dns,ftp,websitepanel...
my internet speed is 1mbps and server speed is 5 ...
0
votes
2answers
88 views
Why does sending mails via a modem connection is so slow?
I have a mail server that periodically connects to the Internet via modem dialup. And before I was able to send emails with attachments of 300kb and 500kb in just only 1 or 2 minutes. I have not made ...
0
votes
0answers
19 views
Port prioritization without specifying bandwidth limit
I cannot determine the real attainable bandwidth of my WAN link. It varies througout the day. So, without specifying bandwidth, is it possible to give high priority for a specific port on a Ubuntu ...
1
vote
3answers
99 views
Ethernet link negotiates a connection only in half duplex mode
I have a NIC which is capable of 100BaseT/Full. But it negotiates a connection only on 100baseT/Half mode. Here is the output of mii-tool:
eth0: no autonegotiation, 100baseTx-HD, link ok
The ...
0
votes
0answers
29 views
local connection or server speed
I have a client who is complaining of a slow connection to my web hosted CMS they say that it seems to be at certain times of day and that other sites run quickly.
I test the CMS at the times they ...
5
votes
3answers
113 views
Speed test between clients and server
I want to test each downstream of several clients (~100) which are connected to a media server. They are continuously downloading media files and I want to check which clients have a slow internet ...
3
votes
2answers
155 views
Files served from Apache are slower than other methods
I have a vps with a 1Gb/s line, when running apps on the server I can get (be it not full) reasonable speeds, but when downloading files through apache from this server I never reach close to my line ...
3
votes
1answer
148 views
Does tarring up small files into one big tar file before writing them to tape increase the level of data loss when an error occurs?
I've been looking at our backups recently and noticed that the tape throughput is a lot lower when writing lots of small files, so was thinking of tarring those small files up into one big tar file ...
4
votes
3answers
227 views
How Windows choose what network adapter to use when redundant adapters are available?
I have a following configuration: two Windows Server 2008 non-virtual machines (a database server and an application server) are connected to the same network through two network adapters, a fast one ...
1
vote
1answer
56 views
How to diagnose whether a customer's ISP is throttling access to my website?
We host a website that servers up mostly static files, such as html and flash SWF files. The server is hosted in Auckland, New Zealand.
Our customers are mainly secondary/high-schools. In general, ...
1
vote
2answers
153 views
Following migration (Server 2003 to 2008), File Services is SLOW; any idea why?
Okay - the run-down:
INITIAL INSTALL
Brought a new Dell rack-mount server up, running Server 2008 Standard x64.
All Windows updates, File Services role added; everything completed without issue. ...
1
vote
4answers
225 views
RAID setup for high speed reading
We are looking to build a realtime playback machine using Linux and a RAID (5 or 10) setup. The current setup looks like:
12GB memory
5 x 7200rpm drive (software raid)
centOS 6 (Kernel Linux ...
0
votes
1answer
32 views
Measuring Download, Upload and Ping
I'm trying a lot to measure download,upload and ping(Packets sent,received and lost) via browser between a wireless client and my freeBSD Server.
I tried NodeJS, I came up with a solution, but the ...
0
votes
2answers
247 views
Increase download speed of ftp server
I have a VSFTPD server running in my machine. The download speed is about 30 KB/s, which is way less than my connection speed. I understand the upload speed of the server affects the download speed on ...
0
votes
2answers
97 views
Does a download server's speed determine the download speed of it's content?
If a server is hosting a download, will that server's speed determine the download speed on the side of the downloader or will that not matter since it's the downloader's own internet connection speed ...
0
votes
1answer
181 views
IO Speed virtual image vs Physical?
I am planning on building a Continuous Integration Server (the existing one is too slow). My plan is to run multiple OSes for our application testing on KVM.
The structure will be a single physical ...
0
votes
4answers
560 views
Improve server performance by configuring MySQL
I have a server with 8GB of memory, running CentOS 5.4, php 5.2.9, mysql 5.0.77.
I have a very large databse of about 20GB (InnoDB and MyIsam tables) and website using it.
Website has about 20000 ...
0
votes
2answers
89 views
Calculate internet traffic with speed given
If i got internet speed 20MB/s so the monthly is like 20 * 60 * 60 * 24 * 31 = 53 568 000
Am i wrong?
0
votes
1answer
80 views
File download speed issue over a dedicated fibre link
My ISP has installed a fibre based dedicated internet connection at the place where I work. In the beginning the connection terminated at one of the ISP's core routers. It resulted in a strange issue. ...
0
votes
0answers
24 views
Any way to speed up the Services Management Console remote connection?
I want to manage the Windows Services running on a server from my machine, so I do the following:
open my local Services Management Console (services.msc)
right click the machine node and click ...
1
vote
1answer
150 views
Apache Server status, is this a bad sign?
I've been monitoring my Apache Status lately, and a lot of my users are saying how slow the site is to respond. Here is the Apache Status:
Current Time: Tuesday, 21-Jun-2011 20:58:45 EDT
Restart ...
0
votes
0answers
137 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 ...
2
votes
1answer
196 views
NIC bandwidth usage graphing as percent (not kbps/mbps)
I would like to validate a certain thought with you guys. Assuming that:
The device whose bandwidth I am measuring is an internal, Linux-based, router.
If a NIC is configured to 100mbps, the network ...
0
votes
1answer
237 views
varnish serving static files from subdomains for better page load speed
Optimizing page load speed practices include to load static assets, like images, css, js, from subdomains, so to increase performance, by using cookieless domains, but most importantly by having ...
1
vote
0answers
146 views
Performance issues on LAN with Load balancing
I recently set up a network which is running "slow" and I can't seem to debug the situation. I'm fairly noobie at networks I'll explain the setup and hopefully you can give me possible solutions.
I ...
0
votes
2answers
184 views
speedtest and a big lie [closed]
I'm in Tunisia and I have an 2M adsl broadband at an ISP (hexabyte.tn). they provide a speedtest link (speedtest.hexabyte.tn)
Sometimes I notice that my speed is very low approx 128 or 256 Kbps ...
0
votes
2answers
461 views
How to speed up a server using netstat & httpd.conf?
I'm using netstat commands to help optimize my httpd.conf correctly.
Here are the results:
netstat -an | grep -c :80
579
netstat -anp |grep 'tcp\|udp' | awk '{print $5}' | cut -d: -f1 | sort | uniq ...
