All Questions
Tagged with performance performance-monitoring
96
questions
2
votes
1
answer
236
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 ...
- 133
0
votes
0
answers
305
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 ...
- 187
-3
votes
1
answer
42
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 ...
- 95
-1
votes
1
answer
3k
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 ...
- 141
1
vote
0
answers
778
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 ...
- 111
0
votes
2
answers
946
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, $...
- 73
3
votes
5
answers
4k
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/...
- 31
0
votes
0
answers
159
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?
- 151
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 ...
- 145
-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-...
- 63
4
votes
1
answer
4k
views
How to get load average in Windows
In linux by "uptime" command you can get the load average in last 15 minutes. But how to get that in windows?
Many had suggested alternative found here. But it is about CPU utilization where load ...
- 145
1
vote
1
answer
189
views
How can I access steal time data in Solaris SunOS 5.10
I think that the version of Solaris that we are running is too old to report steal time in top. Is there a way to get this information on this older version of Solaris. Here is the basic version ...
- 113
-1
votes
1
answer
113
views
Diagnose Sudden Slowness on Linux
I have two identical Linux laptops (Core™ i7-4810MQ with 32GB RAM) both running Ubuntu 16.04. Running seemingly any command on machine 2 takes about 4-12 times as long as on machine 1, depending on ...
- 109
8
votes
6
answers
4k
views
At what point is a server considered idle?
Conceptually, what is the definition of an idle server?
What resource metrics would you look at to make an assumption on whether or not a server was idle?
Would you look at:
CPU utilization
Disk ...
- 203
3
votes
1
answer
5k
views
Performance Monitor: Memory\Page Faults/sec vs Process\Page Faults/sec
When I was investigating some Hard Page Faults I came across this. Objects Memory & Process give different value's from the same counter: Page Faults/Sec. Are there some OS related processes that ...
- 133
-1
votes
1
answer
640
views
no reduction of CPU usage using "nice" utility in Dual Core Machine [closed]
to observe the actual working of "nice" utility in linux, I wrote a python script to calculate SHA512 non-stop.
- Preparation -
a Dual Core Linux Machine, a Single Core Linux Machine ( ...
- 121
0
votes
1
answer
9k
views
PHP loads slow on nginx server
I have a php application with 815k monthly unique users which loads pretty fast on my dev machine ( around 600 ms for the home page ), and used to load fast on the production server.
I am not a ...
- 121
0
votes
1
answer
94
views
What constant throughput and linear respone time tells about the system?
What does it mean when throughput in the system is constant and only response time changes (linearly)?
Does it mean that I have to have a bottleneck?
- 111
1
vote
0
answers
64
views
Ec2 c4.large not responding
I have this ec2 c4.large machine where I'm hosting a video player, for iframe embed purposes in favor of other sites. I'm posting aws stats from aws admin interface:
As you can see, the cpu is ...
- 129
0
votes
1
answer
584
views
How to check that VMWare virtual machine is receiving sufficient resources from the physical server?
We have VMWare virtual machine in data center but applications on it suddenly started to be slow after one weekend. We are considering possibility that data center has moved virtual machine to other ...
- 111
6
votes
2
answers
2k
views
How to compare mainframe CPU performance?
I am working with an application that runs on tomcat in OMVS. It run terribly on one mainframe, and adequately another another. Is there a way I can compare the CPU of the two mainframes as a ...
- 211
-3
votes
1
answer
79
views
Analyzing server performance [duplicate]
We have recently finished work on one ecommerce site which is built on opencart 2.x and site has around 1k products. The site is currently running on VPS server.
For some days we are facing some ...
- 1
7
votes
2
answers
18k
views
Page load long stall times. What is this? [closed]
I have been studying the performance of a website I am building, and notice a curious thing that I can't find the answer to: two requests (always the same two) mysteriously have prolonged stalled ...
- 131
-2
votes
1
answer
44
views
Find a load on my Web Server [duplicate]
As requested, I am asking the question here.
Is there a way to find a load on my web application server without a load / stress testing?
I have deployed my application in the Apache Tomcat server. ...
1
vote
0
answers
656
views
100% CPU, load average 0 - how is this possible?
Here's the top output:
top - 19:20:47 up 1 day, 4:30, 1 user, load average: 0.01, 0.07, 0.12
Tasks: 170 total, 1 running, 169 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.6 us, 0.9 sy, 0.0 ni,...
- 1,336
1
vote
0
answers
36
views
What is involved in adding ZFS cache stats to orca?
I am interested in looking to add ZFS cache stats into existing orca performance monitoring that we have.
Particularly, I am interested in the output of echo ::memstat | mdb -k
Am still in the early ...
- 468
1
vote
1
answer
1k
views
Server high memory and cpu - no leads
I've been asked to troubleshoot a server hosting our application at a client's facility.
The client has complained to us on two separate occasions in the last week - week and a half. In one instance ...
- 111
0
votes
1
answer
1k
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 ...
- 101
2
votes
1
answer
382
views
Linux filesystem page cache - hot or not
How can you tell how much of the filesystem cache is hot (frequently accessed) or not?
The use case would be determining when you are approaching the limits of your memory but before you actually hit ...
- 21
3
votes
1
answer
14k
views
SCOM alert: The threshold for the Logical Disk\Avg. Disk sec/Transfer performance counter has been exceeded
We are monitoring several Windows Server 2012 R2 VMs running on Hyper-V. Now SCOM (2012 R2 UR2) reports:
The threshold for the Logical Disk\Avg. Disk sec/Transfer performance counter has been ...
- 2,448
62
votes
10
answers
15k
views
How to [politely?] tell software vendor they don't know what they're talking about
Not a technical question, but a valid one nonetheless. Scenario:
HP ProLiant DL380 Gen 8 with 2 x 8-core Xeon E5-2667 CPUs and 256GB RAM running ESXi 5.5. Eight VMs for a given vendor's system. ...
- 5,232
0
votes
1
answer
310
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 ...
- 1,144
0
votes
2
answers
6k
views
Logging detailed network activity on Windows Server 2008
One of my clients is experiencing internet delays and outages within their small network. They've verified with their cable company that the issue is not related to any cable company outages. The ...
- 229
2
votes
1
answer
1k
views
How Long Should Data Collection Sets run in Windows Server Performance Montioring
I currently have an application server and a database server both running on Windows Server 2008 R2. I have been tasked with generating a weekly report on the utilization of CPU, Memory and Disk. I am ...
- 123
2
votes
1
answer
5k
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 ...
- 121
1
vote
0
answers
264
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 ...
- 402
0
votes
1
answer
3k
views
Windows: Determine number of cores from a performance monitor file?
Is there any way to determine how many cores a particular machine's CPU has based on a Performance Monitor file I have?
Additionally, can we see if hyperthreading is enabled?
For a period of high ...
- 135
1
vote
1
answer
719
views
How to collect the performance data of a server during an unreachable/down period using Nagios?
Some time services and host stop responding due to a poor server performance. I mean, if for some reason (could be lot of concurrency services access, a expensive backup execution on the server or ...
user120858
0
votes
1
answer
106
views
How to customize Windows "Performance Monitor"?
I'm wondering if that's possible to set a customized action counter that is not listed as one of the counters? e.g. a batch script that measure a time for running my application, and then notify the ...
- 113
-5
votes
2
answers
128
views
How can I test my server response time? [closed]
I'd like to test my server response time and how fast my website loads. How can I do it?
0
votes
1
answer
108
views
How can I replicate performance counter setups in an Azure WorkerRole?
I am trying to collect performance statistics on our Azure application. Up till now, our process has been to set up the roles with RDP enabled, connect, manually set up the performance counters, log ...
- 130
4
votes
2
answers
3k
views
How does CPU consumption look like from a VM on a heavily use VM Host?
I know I could test this, but I don't have the time right now to setup pristine test conditions to learn something that should be in documented form - and that I cannot find in an authoritative form.
...
- 319
2
votes
1
answer
1k
views
Debugging I/O issues on a linux server
What are some ways to debug I/O issues on a linux server?
I've been using:
# nohup top -b -d 10 > /var/log/top.log &
# nohup iotop -b -d 5 -o -t > /var/log/iotop.log &
PS: hardware is ...
- 6,681
4
votes
3
answers
3k
views
How to find virtualization performance bottlenecks?
We have recently started moving our C++ build server(s) from real machines into VMs. (MS Hyper-V)
We have some performance issues that I've currently no idea how to address. We have:
Test-Box - this ...
- 599
0
votes
1
answer
545
views
Interpretation of typeperf counters for loopback interface
I have collected performance statistics using typeperf for the following counters:
Network Interface(MS TCP Loopback interface)\Bytes Total/sec 10 203 372
Network Interface(MS TCP Loopback ...
- 1
0
votes
1
answer
104
views
Performance Monitor (perfmon) showing some unusual statistics
Recently i have thought to used perfmon.msc to monitor process utilization of remote computer.
But i am faced with some peculiar situation. Please see the below Print-screen
I have selected three ...
- 1,357
0
votes
1
answer
9k
views
Performance Monitor ( perfmon ) - how to open .blg file
I have recorded data through perfmon.msc, and save the data. The extension of the Data is .blg.
Whenever i double click the file the below windows get open.
here, i can't see any log which i have ...
- 1,357
2
votes
0
answers
166
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 ...
- 752
5
votes
2
answers
1k
views
Very active database with high % disk times
I have a very active website which is using a NoSql database (RavenDb). I don't have exact figures as i'm not quite sure how to extract this information (any help would be great!)
But looking in ...
- 1,205
8
votes
0
answers
4k
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 ...
- 1,063