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Questions tagged [response-time]

57 questions
9
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4 answers

Long waiting times before Apache 2.2 server response (Gentoo LAMP)

I've recently moved a client's website (using the concrete5 CMS) over to a VPS running Gentoo, Apache 2.2, PHP5 and MySQL 5 and I've noticed that Apache response times are pretty bad (it was the same on the old server), sometimes way up to 8-9…
melat0nin
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7
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3 answers

Requests in IIS' "SendResponse" state stuck for a long time; Slow IIS 7.5/ASP.NET 4.0 web application

I have a set of very beefy, very underutilized servers which are running a couple virtual machines with Windows Server 2008 R2 and IIS 7.5. The problem: Sometimes requests take a very long time to be processed. The user sees their browser spinning,…
ALA
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5
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1 answer

How to debug slow server response time?

Using the method described here to measure server response time, I can see that time_appconnect, time_pretransfer, and time_starttransfer are extremely high, but only when accessing the website through HTTPS. For comparison, connecting to Google is…
Tim
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5
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1 answer

Docker debian slow dns resolve

I got terribly slow dns resolve inside my ubuntu when using wget or curl, apt-get,... root@815340a37f0e:/# time curl www.google.com ... real 0m5.132s user 0m0.006s sys 0m0.003s When I do nslookup its pretty fast. root@815340a37f0e:/# time…
svobol13
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5
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1 answer

Method / Tools to analyze temporarily bandwith collapse

I've tested my server¹ with a python port of mechanize - multi-mechanize. I ran several pretty simple tests - but I always get a drop from 10mbits to some kb of upload bandwith. And I've no idea why. Whether I run 3,15 or 30 minutes makes no…
Lucas
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5
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1 answer

HTTP response time profiling

I have a nginx reverse proxy. The server is close to serving 600-700 requests per second. I have a Munin HTTP load time plugin which is outputting…
Sparsh Gupta
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4
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Fail2ban floods and slow response time

I tried searching for this; I found many people asking but I wasn't successfully to find a working (for me) solution. I have an application that logs each connection on a custom log file. When fail2ban detect more than 10 connections in 5 second…
Ivan Maria Spadacenta
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4
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2 answers

Long response time from server

We have a high traffic website, at peak it has 1000 concurrent users, and in minimum it has 100 users at the same time. In average it has 40,000 to 100,000 visit a day. The problem is sometimes it load very slow(we named this time as disaster time…
superuser
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4
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3 answers

Linux/Apache performance very slow even on local network

I have an Ubuntu server machine running Apache and MYSQL. System and version info is as follows: Linux kernel 3.0.0.-12 Apache/2.2.20 MySQL Ver 14.14.Distrib 5.1.58 I am running a few websites on this server, some HTML only, some PHP/MySQL. THe…
klausch
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4
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5 answers

Max ping response time?

I'm wondering what a maximum (practical) ping response time might be. As far as I know, there isn't a max defined anywhere (TTL, but that's hops, not time). As I think about it, I'm not sure I've ever seen a ping response time of more than a…
DougN
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Performance counter to show real IIS response time

What performance counter should I use to display current average IIS response time? ASP.NET counters correctly show the time spent in ASP.NET, but real latency is much bigger, which is confirmed by IIS logs and ab tool. In more detail, ASP.NET…
ovolko
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3
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2 answers

Nginx request process time header?

I'm trying to append a header inside nginx that will say something like 'X-Time: 0.06 seconds' which basically will be the time since nginx connected with the client and nginx responded to the client. Thanks.
Angelo Vargas
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3
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4 answers

How can I establish if a 566ms average response time is any good for my server?

One of my servers averages 566ms response time as measured by Pingdom ( pingdom.com ). Is this a good score? Should I be doing more to optimise it?
jnthnclrk
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2
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1 answer

Haproxy http response timeout check

We use haproxy as http load balancer. Sometimes one of our servers stop responding while accepting http connection requests. So stats page displays servers as green "accessible" but our nagios server says "CRITICAL - Socket timeout after 20 seconds"…
Mustafa
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4 answers

Response time measurements for IIS web application

I have a dot net web application, and would like to measure response time. I currently have two measures. The "inner" measure is made within the web app itself. The "outer" measure is the roundtrip time from the client (including network lag,…
Rob
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