Questions about monitoring server hardware and software performance, or network performance.

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1answer
140 views

MYSQL delete optimization

I have the following delete SQL statement: delete w,r from table1 w, table2 r where (w.status=1 or r.status=1) show engine innodb status shows the following. is the read rate(237.29 reads/s) ...
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3answers
87 views

Windows 2008 R2 Hyper V Performance

We would like to monitor/view our performance on all Virtual machines running on our Windows 2008 R2 Hyper V Server. We need the ability to view common stats live on the server and also be able to ...
0
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1answer
319 views

Why is the average in perfmon different than the average calculated from the csv?

I'm looking at a Physical Disk\Avg. Disk sec/Transfer counter in perfmon. We've always had faith in the Average number that perfmon reports over the selected time span. I can't figure out why if I ...
2
votes
1answer
988 views

How to monitor current output/receive queue length in Linux

I want to check the capacity and performance of my network. Besides checking the txkB/s and rxkB/s via Sar, I'd also like to see the average queue length of the network interface(so that the average ...
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1answer
620 views

How to monitor real time sendq and recvq sizes

netstat -an will give the recvq and sendq on a particular connection. When I have an application (in this case a dumb echo server) listening on a port and I put the load on and run netstat in a loop, ...
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4answers
9k views

Graph VMware ESXi through Cacti

I have a server running VMware ESXi 4.1.0 and while I love the graphs within the vSphere Client, they provide no historical data with the license I have. Also, all my other servers are monitored via a ...
2
votes
5answers
414 views

Figuring out what's causing a server to slow down

I have a potential client that has a php site that performs fine most of the time. However, every week or so, it will experience lag (slow page loading). I am sure there are a myriad of things that ...
2
votes
3answers
633 views

netstat issue: cannot pipe output from 'netstat -c' to an nfs mount

Short version: Netstat works fine except when I redirect output to a file in NFS. doesn't work: netstat -c > /nfs/mount/file works: netstat > /nfs/mount/file works: netstat -c works: ...
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2answers
2k views

How do get apache display url request in Top and PS?

Is there a way to get apache to display the url that it is handling in top and ps? This would help us nail down performance issues much more faster. Thanks.
1
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1answer
1k views

Zenoss: Getting SNMP stats over SSH

I have the SSH connection working. I have it successfully modeling the device (Ubuntu Server, in this case). What I can't get to work is the SNMP portion. It sounds like I have to custom add the ...
1
vote
1answer
225 views

How can I trace performance problems in an Ubuntu / Apache / MySQL / Rails + Passenger stack?

I have performance issues with a Rails stack that is running Apache 2.2.9, MySQL 5.1, Passenger 2.2.9 and Rails 2.3.8 (ruby 1.8.7-p72) on an Ubuntu 8.04 server. How can I trace performance issues in ...
3
votes
1answer
544 views

Processor(_Total)\%Idle Time inconsistent with Processor(_Total)\%Processor Time

I'm trying to monitor total CPU usage on a Win2k8 R2 server using Performance Monitor. I'm running in HyperV VM on a 12-core system but only a single hyper-threaded core is allocated to this image ...
1
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1answer
193 views

Measuring SQL Server performance improvement

We just got approval to purchase a new database server. My manager is worried that, after we deploy the new server, some users might not perceive the improvement in performance. I've been tasked to ...
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3answers
2k views

Nagios Best Practise [duplicate]

I have installed Nagios on my network, and I have some beginner questions. I would like to get some "best practice" information about the following types of server: Web Server Exchange Server ...
3
votes
1answer
166 views

Overhead of Perfmon -> direct to SQL Database

HI All, First up, I'm a total newb at Performance Monitoring. I'm looking to set up central performance monitoring of some boxes. 2K3 TS ( Monitor General OS Perf & Session Specific Counters ) ...
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5answers
169 views

Looking for application performance tracking software

I have multiple java-based applications which produce statistics on how long method calls take. Right now the information is being written into a log file and I analyse performance that way. However ...
0
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1answer
557 views

I want to measure memory usage of an application over time. How do I do it?

I want to use PerfMon to measure memory usage of the application over time, however, there are more than dozen Memory related counters. Which one will give me an accurate picture?
1
vote
3answers
471 views

Any open source software for measuring & monitoring MySQL performance?

I'm working on improving the performance of a MySQL server. I'm looking for something to measure & monitor the performance of MySQL (as query per second) over time so that I can measure any ...
1
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2answers
245 views

Monitoring multiple networks

I'm looking for a (or multiple if needed) system with web interface to monitor a number of remote networks. All of these networks contain multiple clients, servers, routers, switches, printers, ... ...
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4answers
226 views

Recommendations for monitoring and logging system resources?

I'd like to have the ability to log and record various resources: CPU, memory, disk IOPS, etc of a machine so I can test its capabilities. The purpose of this software is to test my own applications ...
2
votes
2answers
2k views

Can anyone recommend utilities to measure response time of a Windows Terminal Server?

Users are currently experiencing performance problems when using RDP to connect to Windows Terminal Servers. Even users connected to the data centre directly on fibre link are experiencing problems, ...
1
vote
2answers
218 views

What webapps are available to monitor my VPS?

I would be interested what webapps do you know/use that allows you to monitor VPS. I would like to have the following metrics, CPU, Memory, Disk stats, Apache stats (hits/sec, free agents) Thanks
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2answers
1k views

Is there a way to use Performance Monitor on Windows Server 2008 R2 to send an email when free RAM is low?

Very rarely, our server runs low on RAM (and crashes) due to a certain rogue app that gobbles up all of the RAM. To guard against this happening again, is there any way to configure the built in ...
1
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3answers
459 views

What range is considered safe for connections/GETS/SETS per second per server instance with memcached?

Question I am interested in learning the following metrics, per memcached instance: Safe range for connections/GETs/SETs per second Upper bound for connections/GETs/SETs per second I have a ...
6
votes
5answers
2k views

Nagios Check that Simulates Web Full Rendering Time

Does anyone know of a Nagios plugin or cli program that can simulate the load time of a webpage as it would be in a browser. For example the resulting total load time of something like Pingdom's Full ...
0
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3answers
170 views

Recommended way to Investigating server performance issues

I have a linux server box that runs the following stack: apache 2.2.9 passenger 2.2.8 rails 2.3.8 MySQL 5.1 Recently we've encountered some machine performance issues, where the entire server ...
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2answers
3k views

VMWare Esxi Looking for Bottlenecks

I have a VMWare ESxi box, 22GB ram, Dual Quad Core Xeon, 2 Sas drives + Write caching raid controller etc. Anyways, have about 30 small XP VM's running on it and starting to get some very slow boot ...
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2answers
1k views

Munin Graphs - Have one graph/plugin only update once per hour?

I am writing a custom munin plugin/graph and it's slightly computationally expensive. It's also unlikely to change much in a few minutes. Is it possible to have this one graph/plugin only update once ...
0
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3answers
328 views

How do get the 'response time' à lá pingdom,etc?

I just received this report from pingdom: Ans was wondering how do they know the 'response time' information regarding the site. The GET request does not give that information.
2
votes
2answers
3k views

NFS I/O monitoring

I have a NFS mounted directory, and I'd like to monitor the I/O usage on it (MB/s reads and writes). What's the recommended way to do that ? This is the NFS client, I don't have access to the NFS ...
0
votes
1answer
689 views

What should be monitored to troubleshoot file sharing problems?

I'm running into some problems with a file share used by an ASP.NET web application. With this configuration, there are 2 web servers (win2k8 web) that connect to a file server (win2k8 enterprise), ...
6
votes
4answers
7k views

Gigabit ethernet generally faster than Firewire 800?

If I want to transfer a large file between two computers, which are connected via LAN, would going through the network (setup as gigabit ethernet) be faster than using a direct Firewire 800 connection ...
4
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2answers
1k views

Log perfmon data to SQL Server

I am trying to log perfmon log (Windows Server 2008) to SQL Server 2005 (Windows Server 2003) using dsn (SQL Server authentication). On start perfmon counter i am getting error: "Call to ...
1
vote
3answers
675 views

How to measure req/sec by analyzing apache logs

I want to measure the justify stress-test result on production env. How to measure req/sec by analyzing apache logs? apache2.2 LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" ...
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4answers
595 views

Measure Response Time

How do I measure a site response time from the console?
1
vote
1answer
341 views

Setting thresholds via smartd.conf

We currently use smartd to monitor SMART health on our disks. I would like to set the 'thresholds' that smartd uses to report. For example: 197 Current_Pending_Sector 0x0012 100 100 000 ...
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4answers
417 views

Monitoring User Login time

I have recently been given the task of trying to work out why the login time (not machine boot time) for some of our users seems slow. The vast majority of clients (95%) are running on XP sp3, ...
1
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1answer
125 views

mpstat on slackware 13.0 shows no utilization

As the title says, the mpstat command, executed on Slack 13.0 continuously shows almost no processor utilization of any sort. In fact none of the output ever seems to change at all. The system is dual ...
3
votes
3answers
3k views

monitor open process files on linux (real-time)

The files opened by XYZ process can be found with the command ls -l /proc/PID/fd Is there anyway that can be done in a more interactive way like tail auto-refreshing every x seconds? Thank you.
1
vote
1answer
510 views

Recommendation using Client side performance monitoring (boomerang/jiffy/episodes)

There are a few Client-side JavaScript libraries that check web-site performance on the client side: Jiffy (http://code.google.com/p/jiffy-web/) Episodes (http://stevesouders.com/episodes/) by Steve ...
2
votes
4answers
2k views

How to periodically collect hardware performance counters in linux?

I'm trying to monitor various hardware performance counters of a running system, however it seems that current PMC tool e.g. oprofile or perf tool can only record counters after the program finished, ...
1
vote
2answers
351 views

Windows boot up process explorer like logging?

How can one create a automatic log of applications / memory usage / cpu usages during windows boot time? Everyone hates when a machine takes 10 minutes to boot up, but it can be difficult to ...
1
vote
2answers
282 views

Unexplained server slowdown

Apologies for the vague thread title, summarising the following was proving to be a little complicated after all it is, as titled, unexplained. Anyway, enough excuses... This morning I discovered ...
5
votes
2answers
1k views

Real-time IIS monitoring

We're looking for some monitoring software that will report and display real-time performance information for IIS. We're currently using perfmon to monitor requests executing, requests queued, ...
1
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1answer
417 views

Performance monitoring tool for Windows that's like collectl?

I'm not well versed in the monitoring of performance when it comes to Windows (WinXP, Vista, Server 2k3 and above and now Win7). But I know Linux monitoring and I know that I really like collectl. In ...
1
vote
2answers
449 views

Show most requested URL in apache

Is there any way to show the most requested URL from apache over a timeframe, e.g. the most requested URL over the past 2 hours. Is this type of thing possible with mod_status or could I aggregate ...
3
votes
2answers
1k views

best way to monitor web app performance in tomcat [closed]

I have a web application running in Tomcat 6.x on a Debian Linux box. I have recently started using Google App Engine for another java app and now have serious stats envy; is there a comparable tool ...
0
votes
6answers
2k views

Looking for easy to use remote server monitoring tool for Windows Server 2008 R2 [closed]

We are a very small ecommerce business and we are trying to find a remote monitoring tool something in the lines of the ResMon/PerfMon in Windows in order to monitor our dedicated Windows 2008 R2 ...
1
vote
4answers
1k views

How do we quantify the impact of a lower memory speed on a VMware ESXi host?

We have an IBM x3650 M2 server. It has 2 Intel X5570 CPUs (quad-core Nehalem). The current memory configuration is 12x 4GB DIMMs for a total of 48GB, running at 1066MHz. To increase the amount of ...
0
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3answers
692 views

Guest ESXi 4 Memory Usage in vSphere Client

one of our VM's is running relatively slowly. it is the only VM running on the ESXi server. In the performance tab the active memory is very low (<1gb), however what is strange is the 'consumed' ...