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

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4
votes
1answer
436 views

ZFS ARC size vs target size

I am trying to understand the inner workings of the ZFS ARC. However, I am confused with several things: actual (zfs:0:arcstats:size) vs target size (zfs:0:arcstats:c). I understand that actual size ...
3
votes
1answer
1k views

Have issue with monitoring 32bit app pools running on 64bit IIS

I am performing a monitoring task on my 64bit web server which has couple of applications pools running in 32bit mode. I am using .Net CLR Memory object in perfmon to monitor them. However, my ...
2
votes
1answer
124 views

nmon NFS Performance Counters/Metrics

I have recently used nmon to record NFS client performance data from a suse 10 SP4 host and now need help understanding what the captured read & write figures truly indicate. With other ...
2
votes
1answer
2k views

Running perfmon continuously with periodic reports

I have a question very similar to this one, but I want to continuously run perfmon, during reboots and throughout the day. Further, I'd like to generate a perfmon report every 10 mins or so. The ...
2
votes
1answer
190 views

Tool to shows server workload status (ASP.NET + MS SQL)

I want to provide our testers with tool to see live server load, like memory usage, processor usage, database etc via webpage. There are a lot of tools which are installed on server for admin, But ...
2
votes
1answer
620 views

SQL Server “Long running transaction” performance counter: why no workee?

Please explain to me the following observation: I have the following piece of T-SQL code that I run from SSMS: BEGIN TRAN SELECT COUNT (*) FROM m WHERE m.[x] = 123456 or m.[y] IN (SELECT f.x FROM ...
1
vote
1answer
50 views

Tracking memory problems

I'm experiencing some trouble with my Windows Server 2008. We're using it for hosting a bunch (~50) of Web GIS applications on IIS. This setup usually works very well, but when certain applications ...
1
vote
1answer
1k views

Active Sessions Performance Counter for Web Server

I would like to monitor the number of active sessions for my ASP.Net 4.0. It is hosted on IIS7 Windows 2008 Server. When I looked at the Performance counter, I saw many instances. How could I know ...
1
vote
1answer
148 views

How to graph the web server load by using the nginx logs with response time?

I want to analyse if certain type of requests do have an important impact on the server. My backend service is behind nginx which logs all requests including the time needed to get the response. Now ...
1
vote
1answer
147 views

Any way to get munin plugin output to dstat?

The two tools are great with plugins and many available out of the box metrics. I was wondering if there is a way to get output of munin into dstat or a similar tool (real time output vs munin's ...
1
vote
1answer
140 views

why dstat failed with --tcp option?

why --tcp option failed? should i install some package? if yes, which package i should install? this question is not the same as ...
1
vote
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
223 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 ...
1
vote
1answer
508 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 ...
1
vote
1answer
295 views

Spiceworks SQL Monitor cant authenticate

I have SpiceWorks 4.7, installed and added the sql monitor extension to monitor our SQL servers. It does identify our sql servers correctly, but when I put the login information in it can't ...
0
votes
1answer
121 views

Optimal configuration of “Processor load is too high” trigger in Zabbix

I monitor approx. 10 Linux servers with 4 CPU cores each with Zabbix. I was receiving way to many false alarms from "Processor load is too high" trigger lately. The "Processor load is too high" ...
0
votes
1answer
26 views

Export memory consumption of a executable for multiple users over time on Server 2008

I have seen similar question by other users, but could not find a one related to an executable. Situation: Terminal server where 10-15 users log in and run applications. For this instance, we want to ...
0
votes
1answer
83 views

Why this server is so slow?

I hired a VPS in DigitalOcean, it's hosted in Amsterdam, I'm in Turkey. But server is responding slowly and page is freezing/lagging even at ajax POST-GET request.(there is a basic browser game in ...
0
votes
1answer
72 views

Performance Monitor for ASP.Net applications

I have an IIS hosted ASP.Net site which is experiencing timeouts. I would like to be able to monitor it from every angle but I'm not sure where to start with configuring PerfMon counters. Does anyone ...
0
votes
1answer
296 views

SQL Server Timeout issues at random times causing performance degradation

I am having random timeout during a brief period of time on certain days. My CPU, Memory looks fine. So I ran Performance Monitor during these spikes and found my average disk sec/read was 5.8 ...
0
votes
1answer
474 views

High CPU load caused by slow disks?

We are running a online application on a 3-year old server (quadcore Xeon, 4GB RAM, SAN-disks). The server hosts besides the web application a SQL-, FTP-, SFTP, SMTP, and POP-services. Over the years ...
0
votes
1answer
283 views

performance monitor in iis 7 to monitor which website is using most resources (asp.net)

I am using Windows Server 2008 R2 and IIS 7.5, and am hosting multiple websites on the same webserver. Is it possible to use Performance Monitor to know on average which website is using the most ...
0
votes
1answer
120 views

Monitoring performance metrics from Xen (xend) with Java

I need to write a Java application that is collecting and monitoring (remotely and local) performance informations and metrics from a Xen hypervisor. This Java application should fetch the same ...
3
votes
0answers
2k views

Use perfmon to monitor a specific ASP.NET webapp across worker process restarts, IIS restarts, etc.?

I have a few perfmon performance counters that I'd like to track for a specific ASP.NET application over an extended period of time, say a week or a month. The trouble is that perfmon counters are ...
2
votes
0answers
328 views

What could be cause of ASP.NET State Server timeout?

I recently migrated an app from SQL Server backed sessions to the ASP.NET State Server. About once a week there is a brief failure of ASP.NET to connect to the state server. These last from 20 ...
1
vote
0answers
47 views

Logman user switch confusion

I'm setting up a powershell script that installs a logman counter on several servers that are in dire need of some performance monitoring. The documentation states that the -u switch works with ...
1
vote
0answers
23 views

Foglight Graphing Anomalies

We use some custom cartridges in our foglight deployment to measure some web application response times and at times we have large spikes on the graphs that don't line up with the numeric data once ...
1
vote
0answers
142 views

Why does Process Explorer cause highly targeted failure of some applications / basic UI functions in a high-power EC2 Windows instance?

Update: I have determined that Process Explorer itself - the program I am using to debug a performance issue - seems to be the cause of the issue. See note, with updated question, at end. I am ...
1
vote
0answers
48 views

IIS httpTracing setting has no effect

I'm trying to troubleshoot some performance issues we are having on a specific ASP.NET page with Microsoft's Perfecto Tool on IIS 7.5. Perfecto uses the ETW hooks build in to IIS to report on specific ...
1
vote
0answers
61 views

How can I get a windows server to collate and email 4 daily reports/graphs for server performance

I run a windows 2008 webserver and would like to setup the most basic performance monitoring in the world. What i would like is: a plot of ASP.Net request time for each w3wp process for a 24hour ...
1
vote
0answers
133 views

Increasing collection level for performance counters in vCenter 5

I want to simply increase the collection level of some of the Network performance counters to 4, when I look in performance for the host, and click 'Advanced', switch to look at the Network ...
1
vote
0answers
127 views

Windows 2008 R2 - how to optimise performance monitoring?

It seems there are quite a few "default" monitoring threads running. I have W2008R2 and when I opened Performance Monitor I can see 6 Event Trace Sessions in the System collector sets. This is ...
1
vote
0answers
98 views

How do I make Performance Monitor always log the time AND date?

I have been using Performance Monitor to keep an eye on Non-Paged Memory usage over the last few months. From the csv files generated I have been creating graphs to make it easy to pin point problem ...
1
vote
0answers
73 views

Configuring PA Server Monitor for Windows monitoring

My company got PA Server Monitor to monitor 6 servers. I have few questions regarding configuration. So far I've made disk space and ping monitors. Generally two servers are IIS 7, two are SQL Server ...
1
vote
0answers
58 views

What to check for IIS Performance Monitoring

I'm trying to discover why an internet server is running on the slow side. One thing that the site does is to use an external data source, and we know those queries are slow, but these long queries ...
1
vote
0answers
483 views

Physical Disk counters not showing up in PerfMon results

I am trying to diagnose some issues for a customer, but i notice that none of the disk related counters show up in my PerfMon results (graph or csv format). I found this article ...
1
vote
0answers
43 views

Hyper-V Performance Monitors Not Working as Data Collectors

I'm trying to monitor vCPU performance in Hyper-V using data collectors and while I can view the real time monitors (Hyper-V Hypervisor Virtual Processor\% Guest Run Time), whenever I try to add the ...
0
votes
0answers
108 views

Zabbix monitoring a custom process

Hello I’m new with Zabbix, I have the follow scenario: About 10 windows server with our process that we have to monitoring. The processes have different name but they have the same prefix, for ...
0
votes
0answers
56 views

IIS Performance Counters recorded extremely large requests per second value

While I've been monitoring a production IIS server receiving around 1000 - 5000 requests per second almost steadily, I've encountered a few spikes in the performance counter "Requests/sec" and "GET ...
0
votes
0answers
47 views

Why am I unable to start the built-in System Data Collector Sets on Window Server 2008R2?

Why am I unable to start the built-in System Data Collector Sets on Window Server 2008R2? I can select "Start", but nothing happens and the report is never generated. I don't see any errors in the ...
0
votes
0answers
62 views

Getting performance metrics from a (cluster of) nodejs process(es)

What are some ways to get interesting performance metrics out of any given node.js app, and how can one deal with that when there's essentially many running processes using cluster.js? Interesting ...
0
votes
0answers
95 views

The `iostat` Command Describes a Non-Existent Block Device

The System An instance running on Amazon EC2 It is an m1.large EC2 instance The instance is running Ubuntu Server 12.04 LTS Here's What Happens... I wanted to measure disk IOPS on my system, and ...
0
votes
0answers
81 views

Monioring the performance of asp.net web application using IIS log files

I have IIS log files, I need to findout the errors generated by the asp.net web application which are hosted in IIS 7. I used Log parser to paarse IIS log files, but I want to find errors such as ...
0
votes
0answers
84 views

Generating a waterfall chart of web performance

I'm doing performance analyzes of websites occasionally, where I among other things check the waterfall chart generated by Google Chrome. Is there any tool that can generate those charts and export ...
0
votes
0answers
53 views

Hadoop - On the Wire Performance Monitoring?

I have been tasked with implementing an 'on the wire' monitoring solution for a large Hadoop installation. The source of data will be a combination of taps and SPANs throughout the environment. My ...
0
votes
0answers
77 views

How to Measure the Impact of Blocking on IIS Worker Threads

I frequently work as a contract software developer on an existing ASP.NET Web Application. Often, I see code that looks like it should be made asynchronous, so that database or web service operations ...
0
votes
0answers
43 views

top output seems fine, yet server is overloaded

This server I am benchmarking gives no obvious signs of getting overloaded at a first glance. top output: top - 22:48:25 up 5 days, 3:41, 3 users, load average: 3.19, 3.34, 3.25 Tasks: 146 total, ...
0
votes
0answers
28 views

Get Value of SMEM using PHP

I'm using smem command to know how much RAM each user is using. It also display the Count column. As far as my knowledge is concerned, Count column is a value PHP-FPM pm.start_servers and PHP-FPM ...
0
votes
0answers
76 views

Live access logging for many nginx websites

I'm running a couple of dozen sites on a server for a client. This number moves around pretty fluidly as they test ideas and we have a flexible configuration to host things. The problem comes in that ...
0
votes
0answers
178 views

Top shows md127_raid1 with high CPU load?

I have a new server, when I use "top" to see busy processes I usually see md127_raid1 either at the top or close to the top What is this process doing? How can I easily verify that the raid is ...