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Questions tagged [performance-monitoring]

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

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DNS Monitoring Tool Bind9 or Powerdns Monitoring Tool (Open Source) [closed]

Hello guys hope you all fine kindly suggest me any good monitoring tool for DNS monitoring, Tool should monitor Query per second, Query types, query fail, drops, and other important things related to ...
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0 votes
0 answers
21 views

Tool to calculate cpu time between certain ETW events

I'm trying to measure the kernel and usermode time spent in certain blocks of C++ code. I know about GetProcessTimes but since there's ETW i could also provide events for enter and leave of the blocks ...
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-2 votes
1 answer
29 views

Is there a way to monitor remotly multiple windows server for hardware performance? [closed]

We have 5 server installed as VM with "Windows Server 2016" on VMWware. These servers are configured as RDS, means multiple users are working on it. Users which are connected on these ...
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0 votes
0 answers
26 views

Windows2016 Access 32bit counters

We have a custom monitoring tool (.Net framework) that accesses custom performance counters. The custom counters are from a 32bit application running via wow64 on 64bit machines. in windows2012 we ...
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0 votes
1 answer
29 views

How to monitor ubuntu server resources consumption history

I'm working with a new web application installed on Ubuntu 20.04 server. The web application is still in testing status and I need to check if the machine resources are enought during the day. How can ...
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How can I resolve or trace the latency on Remote Performance Counter request?

I have a Powershell script which directly accesses a performance counter from a remote machine in the cloud in a large corporate environment: $a = (Get-Counter -Counter "\\myservername\PI ...
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2 votes
1 answer
42 views

Windows Server Command Line for Remotly Measure Data Disk IOPS,CPU,RAM Monitoring

I want to measure data usage like IOPS, CPU, RAM ,Capacity ,Bandwidth ETC from Remote Server. I Know, that it is possible to measure it localy with the Typeperf Command. However, again, i want to ...
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  • 135
0 votes
1 answer
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Comparision trigger in Zabbix

I got two items created for showing certain values. One of them is shoving value from today and the other one from week ago. How can I create trigger that compares them and alert when one of them is ...
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0 votes
1 answer
176 views

Monitoring Byte Usage of Large MySQL InnoDB Buffer Pools?

I am trying to monitor the total number of used bytes in a MySQL 5.7 InnoDB Buffer Pool, that can go up to 100GB, using Innodb_buffer_pool_bytes_data but it seems that this status variable is a 32-bit ...
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0 answers
62 views

Apache crashing because of high memory usage

CPU[|||| 3.3%] Tasks: 71, 155 thr; 1 running Mem[|||||||||||||||||||||||||||||||||||||||||||||||||1261/1875MB] Load average: 0.00 0.02 0.01 ...
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1 vote
0 answers
78 views

How to write pidstat output to a sadc file for analysis later (sar)

How can I write the output of pidstat to a file for analysis later? In sar, you can monitor usage and write-out to a file for later analysis using the -o argument. From the man page: If ...
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-1 votes
1 answer
48 views

Obtaining the CPU L2 shared memory percentual of usage on Linux machine

On Linux based systems, how can I estimate or maybe read the CPU L2 shared memory % of usage?
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  • 107
1 vote
0 answers
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What defines the "interval" when playing back Performance Co-Pilot data in pcp-atop?

I have PCP (Performance Co-Pilot) recording performance metrics on a RHEL 7 host. The recording cadence is set to Y seconds here: /etc/pcp/pmlogger/control.d/local When I copy the performance metrics ...
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0 votes
1 answer
271 views

MySQL RDS Performance Insight got stuck

We are using AWS MySQL RDS. Quite recently, we are saw MySQL RDS Performance Insight got stuck with SET `@slave_uuid` = ? Like the following image The second one that follows the above is Use `...
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0 votes
0 answers
35 views

Monitoring (summarizing) network usage of a single application (process) (Linux)

I have a single application that seems to be a network pig (based on a casual glance at its logs - it seems awfully chatty). I'd like to find out what its bandwidth usage is - preferably in the form ...
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  • 171
-3 votes
1 answer
37 views

Is there a program to diagnose and summarize why my mchine is slow? [closed]

Is there a program that will tell me why my server is slow? What is being over utilized? CPU / Memory / Disk / Network ... and what processes are driving that utilization? I want a program that can ...
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0 answers
575 views

How to remedy high cpu utilization by momperfsnapshothelper.exe?

Seeing high cpu utilization by momperfsnapshothelper. I think we are using this to ship IIS logs to Azure Log Analytics. Busy web server. How can we reduce the CPU utilization of ...
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0 votes
1 answer
110 views

How can I isolate resources from a VM in VMware-Esxi to do load testing? [closed]

We have some web services running on a VM in VMWare-ESXi. We would like to see how the system behaves under certain amount of users. How can we configure the VM to provide accurate results without ...
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  • 119
0 votes
1 answer
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Double call to root path "/" in a website

I'm checking my web page performance, but some strange reason it double calls to root path. Any idea why this is happening? Thank you.
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2 votes
1 answer
421 views

Reducing idle CPU usage of Windows Server 2019 Datacenter Core VM

I'm moving a few installations to Windows Server Datacenter Core 2019 running in KVM VMs on Linux hosts. My first Windows VM has, when it's idle, a bit more than 32000 VM exits per second, half of ...
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1 vote
1 answer
118 views

Monitor the nginx deployed on GKE cluster

I want to monitor the nginx requests (5xx, 4xx, 3xx, 2xx) where multiple applications are running with different domain urls. Nginx is deployed as Kind : Deployment. Is there a way for real time ...
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0 votes
1 answer
160 views

Track outgoing bandwidth usage of single IIS website on my VPS

I want to track OUTGOING bandwidth consumption from a single website in IIS to my site visitors (no internal traffic), e.g. CSS, images, HTML. The reason is that I want to know which package would be ...
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1 vote
2 answers
37 views

How to setup Server to Monitor Resource Usage Over Period of Time & Generate Report

I am working on a research project and we usually start a job on a server and it takes about a day or two to run and then we go and look back at the results. The problem is that in some cases we are ...
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-1 votes
1 answer
2k views

The causes for frozen server

We built one windows 2012R2 server (it has enough free memory/disk space, high performance of CPU), but it would be frozen for around half hour every 12 hours. The symptoms: couldn't access the ...
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  • 141
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0 answers
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Determine number of Kubernetes CPUs utilised over time

I have spent a bit of time in Kubernetes monitoring on GCP (https://cloud.google.com/stackdriver/docs/solutions/gke/observing) and cannot find where to see how many CPUs were used by a particular ...
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  • 101
0 votes
1 answer
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How to load one physical CPU in a system with virtual cores?

I have an AMD processor with 4 physical cores and SMT enabled. Because of the latter, I see 8 virtual cores in a Linux box. For example, stress command can spawn a number of workers spinning on sqrt()....
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1 vote
3 answers
717 views

NVMe disk problems - smartctl 0x2002 status

My NVMe disk works but it is very slow compared to what it was. I benchmarked it 6 months ago at 2000MB/s using fio, the exact same test now is giving me 350MB/s I ran smartctl but it's giving a ...
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0 votes
2 answers
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Is it "common" for an IT department to provide a Network SLA to the business internally? [closed]

Service Level Agreements (SLAs) are pretty common when services are being purchased, we all expect that our business grade ISP, cloud providers, etc will offer a guarantee of 99.9% uptime, X amount of ...
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  • 143
1 vote
1 answer
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Can Performance Co-Pilot serve as a standalone NMS solution?

I was wondering whether Performance Co-Pilot (PCP) be set up in the way that it has all the features of NMS application, ie. Nagios or Zabbix. I was using it to extract metrics from a host and plot ...
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  • 133
1 vote
1 answer
574 views

pidstat: difference between task and process?

The pidstat command has options relating to tasks and others relating to processes (e.g. -C and -G). What's the difference?
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  • 213
3 votes
1 answer
72 views

ESXi (Free Versions) Notifications when there is sustained high CPU usage

I'm looking for a way to have the free version of ESXi notify me (Email is fine) when CPU usage is over 60% for at least 60 minutes. Generally, my CPU usage is around 25%. If it stays high for a ...
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1 vote
0 answers
61 views

Variance in memory reported with perfmon vs Task Manager in Windows

I am recording Memory\% Committed Bytes In Use with perfmon every 15 seconds but I see that it doesn't always tie to task manager's reported memory %. They almost always tie but when memory starts to ...
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1 vote
0 answers
613 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 ...
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  • 111
2 votes
1 answer
985 views

AWS CloudWatch alarm not populating data points - Insufficient state always

I am configuring CloudWatch alarm from the custom metric. Custom metric for disk space is configured, and I can see that every 5 minutes I am able to see the data. But when I set the alarm, the data ...
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0 votes
1 answer
603 views

Slow initial connection to database (php / mssql)

Our webserver and database server are on a local network and the webserver uses an IP address to connect to the database. $con = new \PDO('sqlsrv:Server=10.200.2.1\sql2017;Database=dbname, $user, $...
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3 votes
4 answers
3k views

Rsync to /dev/null overwrites it

I am seeing a random behavior when copying from one server to another using rsync to the /dev/null of the destination server. This is as part my network performance testing, and I want to avoid Disk I/...
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8 votes
1 answer
796 views

How to record and replay htop?

TL;DR Is there an option to run htop in a way that will generate some report and the load it using htop later? Similar to perf record and perf report. I'm a big fan of htop. I use it quite a lot when ...
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  • 111
2 votes
0 answers
334 views

How can I count EC2 instances over time in AWS?

I want to know the number of EC2 instances I have running over time. I am able to view this data from the following menu: ec2 dashboard Auto Scaling Groups select my group from the table of groups ...
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  • 121
3 votes
1 answer
2k views

how to gracefully kill linux perf tool process

I'm trying to use the linux performance tool perf to monitor kvm events on a host where a guest VM exists. The command I invoke perf is perf kvm stat record After some time, I'll press Ctrl + C to ...
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0 votes
1 answer
184 views

How to identify the source of growing blocked processes on a system container (LXC/OpenVZ)

When the number of blocked processes grow indefinitely, how to identify exactly what are these processes. Since I'm inside a system container (LXC/OpenVZ), I can't modify the hosts' kernel modules to ...
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1 vote
0 answers
49 views

Profiling CPU, memory, networking performance and generating reports

Background I have a performance-intensive (i.e. consumes a lot of CPU cycles, memory, and network resources) application. Multiple instances of this application, along with some third-party vendor-...
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  • 405
19 votes
6 answers
11k views

Why the discrepancy between Speedtest and Wget?

My customer complains about low internet speeds. When measured with Speedtest.net speeds are acceptable. Periodic measured downloads are 10% to 30% of the nominal speed. I cannot explain that. Some ...
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1 vote
0 answers
1k views

Unexplainable high load average on a QNAP NAS

we have two QNAP TS-1635 NASes (one per location), running at identical configuration and firmware versions. However, one of them has ever higher and higher load averages and actually needs to be ...
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0 votes
0 answers
49 views

Icinga configuring error

After configuring Icinga host list in host conf i got error like root@server scripts]# icinga2 feature list Disabled features: api gelf influxdb opentsdb Enabled features: checker command compatlog ...
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0 votes
0 answers
91 views

High wa but no IO usage

My VPS is having extremely high wa (around 90), but there is no IO usage taking place. htop: iotop: nethogs: What can be the problem here?
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  • 111
0 votes
2 answers
557 views

Can a high load on a VPS be caused by the underlying infrastructure?

My VPS started to have random stints of high load (around 2-3, but the system becomes extremely slow, running ls takes like 30 seconds). I hadn’t changed anything on it, there was pretty much nothing ...
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  • 111
4 votes
0 answers
387 views

How to get PCI Tx/Rx byte counters?

I know how to read statistics about the configured network interfaces, for example via cat /proc/net/dev. Is there a way to read similar byte counters of PCI or PCIe traffic? Apparently, according ...
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  • 41
1 vote
1 answer
4k views

Windows Performance Monitoring - "Packets Received Discarded" Never Changes

I wrote the following short PowerShell script to help diagnose some performance issues on a server: $counters = @("\Process(*)\% Processor Time","\Process(*)\Working Set","\Process(*)\IO Read Bytes/...
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0 votes
5 answers
2k views

Configure JMeter to test a proxy service

I have developed a proxy service using ballerina language by referring the following [1] and [2]. It works perfectly fine. Now I want to run a load test via JMeter. That is JMeter should be configured ...
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-1 votes
2 answers
1k views

How to backtrace slowness of a shared hosting web server

I have a shared hosting plan (godaddy), and time to time I suffer slowness problem. When this happens, I try to login to cpanel to double check if the problem is me or the server, and it also takes 1-...
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