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IIS curretly processed requests counter

I am experiencing issue with my application and suspect it might be because I am testing on client Windows/IIS which has 10 concurrent request limit. Is there a way to monitor the current value of ...
Tomasz Grobelny's user avatar
1 vote
0 answers
871 views

Monitoring SLA/SLO/SLI using Prometheus

I have done much research about monitoring SLI metrics with Prometheus. I have found only how to monitor a cluster using Kubernetes. I'm hoping to find a response here for simple monitoring. I also ...
Hasagiii's user avatar
  • 111
0 votes
1 answer
40 views

is there something like the stem-and-leaf plot for timeseries?

When wanting to quickly take a look at the distribution of a sequence of values, the stem-and-leaf plot is an incredibly simple, yet powerful tool. It takes a few minutes to teach the computer to draw ...
kqr's user avatar
  • 91
1 vote
1 answer
60 views

How to monitor data transfer speed and volume between two computers on same network

My application on Win2012 Server stores its cache on a ZFS appliance in the local network, during peak load we are seeing some performance degradation, this only happens in the production environment ...
user961954's user avatar
1 vote
0 answers
69 views

capturing durations (intervals) between tracepoints in perf

When using the perf tool (Linux), is there any simple and convenient way to time durations between two tracepoints? The obvious use is for syscall sys_enter and sys_exit points like sys_enter_fsync ...
Craig Ringer's user avatar
  • 11.3k
-1 votes
1 answer
857 views

Are thousands of expired keys bad on performance for Redis?

I'm new to Redis, so I don't know which metrics I should care about and how to monitor its healthiness and responsiveness. My colleagues and I are maintaining a software, which uses Redis heavily for ...
Michael Hirschler's user avatar
1 vote
2 answers
466 views

How to interpret traceroute results

I am trying to figure out how to interpret the attached image. First two hops are on our LAN, hops 3-5 belong to our WAN provider, while hop 6 is at our hosting provider and the hop 7 is a Windows ...
Zlatko Mesaros's user avatar
3 votes
2 answers
1k views

Linux: Extreme load on idle CPU

I'm investigating a strange situation with extreme load (but low CPU, IOWAIT, SYS, disk/network activity) on one of our linux servers on which many oracle database instances are running. When having ...
MRalwasser's user avatar
3 votes
1 answer
2k views

/proc/diskstats: No such file or directory

Trying to get some disk performance metrics (in particular, using munin), found that /proc/diskstats does not exist. Tried yum provides '*/diskstats' but nothing except munin was found. CentOS ...
Putnik's user avatar
  • 2,347
1 vote
1 answer
38 views

Does orca rrdtool apply any averaging/fudging of graph values?

I have a plot of data that consists solely of zero and one values. However, the orca plot that results shows intermediate values. I wonder why this is.
user55570's user avatar
  • 468
0 votes
1 answer
132 views

Test cloud VM performance

I have a linux VM hosted in a cloud environment. I suspect the provider to do too much overprovisioning with CPU and IO, from time to time. For example postgresql's reports 300ms+ queries that are ...
ascobol's user avatar
  • 288
3 votes
1 answer
5k views

iostat - dm-0 device shows much higher latencies than sdX

We are running linux (Centos 5.x) VM's on top of vmware vsphere 5.5. I am monitoring disk latency using iostat, specifically the await column, but I am noticing strange results with the device mapper/...
Steve R.'s user avatar
  • 134
1 vote
0 answers
1k views

Random server load spikes, number of tasks doubles, CPU/Memory consistent

We run a vBulletin forum with 6,000 visitors per day on an SSD VPS with 5GB RAM and 24 CPU Cores. On a typical day we see 30-50 concurrent users at any given moment. On busy mornings, it'll go up to ...
PF Billing's user avatar
0 votes
1 answer
480 views

Why perfmon for remote desktop servers get an empty file (only time stamp)?

I'm trying to remotely monitor a server using perfmon, the output file is always empty and only the time stamp field is there?
user237212's user avatar
2 votes
1 answer
602 views

SMI generation / detection in GRUB / real mode vs. in Linux

I'm trying to get an idea of the frequency and duration of SMI events on a Supermicro X10SAE C226 board (2.0a BIOS) with E3-1245v3 Haswell CPU. The Intel BIOS Implementation Test Suite (BITS) SMI ...
fmyhr's user avatar
  • 196
0 votes
3 answers
9k views

What's a good way to run a point-to-point network speed test over a WAN? [duplicate]

I want to monitor my WAN speed between two offices, and be able to schedule it to run at certain times of the day. I guess in its simplest form this is just a point to point copy, but I want to ...
Ben's user avatar
  • 1,137
0 votes
3 answers
769 views

Passively monitor IO wait spike on process level

We use munin and monit to keep track of general stats about our vps, in last a couple of weeks, we have been running into issues where random IO wait spike is killing our server performance. Since ...
bitinn's user avatar
  • 331
2 votes
2 answers
1k views

Disk Monitoring with cronjobs -- report disk issues

Is there a way to monitor disk health and send cronjob reports for errors? I know you can use smartctl -s on -a /dev/hda to pull information but just wondering if there is a way that could be used to ...
Tiffany Walker's user avatar
1 vote
0 answers
178 views

% segments retransmitted above threshold

I've been doing some monitoring on our servers and we get warnings that the TCPv4 / % Segments Retransmitted is above acceptable threshold: https://i.sstatic.net/MqXis.jpg Is there any way to tell ...
Pking's user avatar
  • 111
2 votes
0 answers
281 views

Getting the virtual memory address for (major) page faults

On a Linux (Cent OS 5) system, I have a process that accesses a large amount of memory mapped files. The process is generating a large amount of page faults because the aggregated size of the mapped ...
VoidPointer's user avatar
0 votes
4 answers
353 views

Testing performance from around the world - how do I get a linux shell easily in multiple countries?

We are building a socket based service where latency is paramount, and as such we have servers distributed into 7 data centres around the world. However, whilst we know we're bringing the servers ...
Matthew O'Riordan's user avatar
3 votes
4 answers
1k views

Monitoring file access in Linux

Is there a way to gather statistics about blocks being accessed on a disk? I have a scenario where a task is both memory and I/O intensive and I need to find a good balance as to how much of the ...
VoidPointer's user avatar
0 votes
1 answer
7k views

Enable: Asp.net connection pool monitoring with performance monitor

I'm a C# developer, but I'm running in a system management issue here. Intro: I'm suspecting that an ASP.NET application is having some issues with the connection pool and that the pool is flooding ...
Maarten Kieft's user avatar
2 votes
1 answer
2k views

PerfMon "Data Collector" Vs. "Save Settings"/html

Perfmon seems to have two ways to capture / log its findings. One is to use a "data collector," and the other is to open a context menu and "Save Settings As" which produces an html file. Could ...
Brent Arias's user avatar
4 votes
1 answer
1k views

How can I diagose 100% CPU consume of svnserve.exe?

Our Subversion server goes to 100% CPU consume after some hours of work. A restart solve the problem for some hours only. The commit and checkout will be very slow in this case. How can I find the ...
Horcrux7's user avatar
  • 175
0 votes
1 answer
574 views

Zabbix and time series data from old-school devices

We should monitor and log ~1000 devices (1..4 sensor per device). SMS and email alert and the common functions are required if anything going wrong. I think we instead of developing the whole ...
boj's user avatar
  • 121
0 votes
3 answers
2k views

Is it possible to get some type of performance report on Windows Server 2008 R2

I have a server running Windows Server 2008 R2 and I would like to know how well it handles a certain load. Is there any built in way of telling the server to monitor performance for a specific ...
lox's user avatar
  • 167
3 votes
2 answers
779 views

Questions about storage performance

I would be glad guys, if you can answer me some of my questions about the performance of our storage. The setup HP P2000 SAS with 2GB cache 8x 1TB SATA 7200 RPM storage RAID6 3x hosts with SAS HBA ...
John's user avatar
  • 1,483
1 vote
1 answer
2k views

Best Metrics for Monitoring Apache Solr instance

We are running apache solr through sunspot. What are the best metrics to use to look at the performance of solr in regards to needs to cluster/scale? I am looking at monitoring these with nagios or ...
pablo's user avatar
  • 3,040
0 votes
3 answers
13k views

Resource monitor and how to spot if you have disk I/O problems?

I have an application server which runs pervasive SQL and app using it. Last weeks the users are complaining about poor performace of the app and I suspect disk I/O problems because CPU and RAM ...
Primoz's user avatar
  • 397
1 vote
4 answers
2k views

Recommended MySQL monitoring tool [closed]

I am looking for a good all-in-one monitoring tool for a single MySQL server and underlying Linux OS. I need something that gives me a quick graphical view of what is going on right now and that ...
Laban's user avatar
  • 21
3 votes
1 answer
454 views

Monitor Network Performance of VPN Servers from different locations

Our company has 3 VPN Servers in US. We want to monitor network performance ( the most important factor is how fast users from different locations in the world can download data when using our servers ...
Morteza Milani's user avatar
0 votes
1 answer
298 views

Web Server Monitoring Tools or software? [duplicate]

Possible Duplicate: What tool do you use to monitor your servers? Recommended website performance monitoring services? I am looking for tools or software to monitor a web server. Most ...
obautista's user avatar
  • 149
2 votes
1 answer
1k views

Windows Performance Monitor keeps trying to add unwanted counters

I have been running a Data Collector Set for SQL Server for a week, and everything was going just fine until I tried clicking on Action -> Save Current View and now it always tries to add the ...
ivanmp's user avatar
  • 180
0 votes
2 answers
889 views

Linux: lightweight tool to restart process when they get killed

I have a micro instance of ec2. A couple of java process’ gets killed every now and then. Which tool can I run to monitor process and restart then when they get killed?
Quintin Par's user avatar
  • 4,443
2 votes
1 answer
9k views

Resource Monitor Disk Usage scale

I'm sure this is going to be very dependent on the harddrives and other hardware that we have in our machine, but I have no idea how to read these graphs. This graph looks nice and low. This one ...
Matt Dawdy's user avatar
10 votes
4 answers
13k views

Nagios remote monitoring: NRPE Vs. SSH

We use Nagios to monitor quite a few (~130) servers. We monitor CPU, Disk, RAM and a few other things on each server. I've always used SSH to run the remote commands, purely because it requires little ...
user avatar
3 votes
5 answers
6k 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 ...
user57187's user avatar
  • 177
1 vote
1 answer
297 views

How to monitor and log processor, memory and other details for website running behind IIS?

I have ASP.NET application installed behind IIS 6.0(Windows Server 2K3). Now when i run the application and i would like to get some load testing scenarios to work on this. While doing the load test i ...
Anil Namde's user avatar
5 votes
2 answers
3k 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, etc...,...
nivlam's user avatar
  • 151
0 votes
4 answers
18k views

Zabbix not collecting data

It's the first time that i install a Zabbix server on my dedicated server (debian 5). But zabbix cannot collect data from the server itself (no remote server, it's installed on the server i have to ...
Tristan's user avatar
  • 498
2 votes
1 answer
208 views

mysql query monitor

I have mysql server. I need a free monitor (something similar to the mysql enterprise monitor http://www.mysql.com/common/images/enterprise/EnterpriseDashboard.png). I need the graphs to be in ...
darko petreski's user avatar
44 votes
11 answers
101k views

How to monitor and log the memory/cpu usage of processes over time? [closed]

I am looking for a way to diagnose issues, such as swap death, where a balooning memory process fills up swap and kills the whole machine (such as apache). I'm already using cacti and I can set up ...
Artem Russakovskii's user avatar
9 votes
3 answers
12k views

Monitor system CPU / system calls in Linux

I have a couple processes that are eating up a lot of system CPU time (as determined by looking at vmstat). Is there an easy way to find out what kind of system calls are being made? I know there ...
bajafresh4life's user avatar
1 vote
2 answers
947 views

Network bound / network pipe monitoring on Linux?

I'm trying to analyze the performance of an application running on Linux. I use a combination of vmstat/iostat/top to see if the machine is disk I/O bound or CPU bound, but I'm not sure what utility ...
bajafresh4life's user avatar
6 votes
3 answers
743 views

A strategy for network monitoring to improve network health?

The goal is to find out which parts of network should be upgraded / reorganized to improve network health (reliability and performance). What are the methods to monitor network traffic, detect ...
Janis Veinbergs's user avatar
7 votes
9 answers
9k views

Linux: How to find out whether the harddrive is causing a bottleneck?

I'm not asking how to find out where a bottleneck is. I just what to know how to check if the harddrive is being used at its limit (and hence causing a bottleneck). Something like top where I can see ...
GetFree's user avatar
  • 1,552
1 vote
2 answers
287 views

Microsoft Windows server monitoring tools

I'm more of a developer then an IT guy and I was wondering if there are any existing Microsof tools for monitoring servers and potentially SQL Server. We have access to MSDN so anything created by ...
Chad Moran's user avatar
3 votes
2 answers
748 views

Sysadmin 101: How can I figure out why my server crashes and monitor performance?

I have a Drupal-powered site that seems to have neverending performance problems. It was butt-slow about 5 months ago. I brought in some guys who installed nginx for anonymous visitors, ajaxified a ...
bflora's user avatar
  • 909
0 votes
1 answer
800 views

IRP_MJ_WRITE latency up to 15 seconds

We have written an application that performs small (22kB) writes to multiple files at once (one thread performing asynchronous queued writes to multiple locations on behalf of other threads) on the ...
racitup's user avatar
  • 132