So I want to know in a mininet network how much CPU consumes one OpenVSwitch? and how many flow table entries can the openvswitch allow?
Thank you!
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I want to show custom metrics like CPU Type and CPU Utilization in stack driver monitoring.For this i am looking any monitoring api is available or not.
Please let me know any suggestions on this.
You can use a product from the GCP Marketplace if you are looking for these metrics from a non GCP resource, BindPlane. Like AWS, or on premise server or VM.
They have a source collector that is for Host info that collects info on things like CPU utilization, cpu temp, cpu voltage, disk, memory, network performance, process info, free space on a file store, etc.
Here's the docs, looks like it's in Alpha: https://docs.bindplane.bluemedora.com/docs/host
My tests with standalone (single-threaded) Redis show that load from a number of parallel clients can drive Redis CPU usage to 100% (in my memory cache use case).
Starting it in cluster mode and sharding the content to multiple masters is a possible approach for speeding it up, if persistence is turned on.
I have a configuration without persistence (turned off RDB and AOF). Would starting multiple masters help performance (still using the same cummulative amount of RAM)?
Redis is single-threaded, so the performance of a standalone instance is limited by processing power of a single CPU core and the network bandwidth of a single machine. However, Redis is very very fast. So normally the bottleneck is network bandwidth, unless you run lots of slow commands/lua scripts.
If you deploy Redis cluster on multiple machines, the performance should be improved no matter whether the persistence is turned on or off. Since you have more CPU cores, and more network bandwidth.
If you deploy Redis cluster on a single machine (each node listen on a unique port), the performance might be improved. It depends... If the bottleneck is network bandwidth, it won't be improved. On the other hand, if the bottleneck is CPU processing power, the performance should be improved. So, in this case, you should do some benchmark with your specific data, specific environment, and specific commands/lua scripts.
Is there a tool which logs the system resource utilization like cpu,memory,io and network for a period of time and generate graph ?
I need to monitor system and identify in which period resource is been highly utilized.
If anyone of you had experience with this kind of tool,kindly suggest.
Thanks in Advance.
Besides third party tools, there is Windows Performance Monitor that can help. It shows real-time graphs, and can save the performance information into files that you can open and analyze later
It provides multiple metrics for CPU, memory, I/O and Network utilization, and shows an instance for each processor on the machine. It can also be used to monitor remote machines
You can also create collector sets, to have all monitored counters in a single component
Performance Monitoring Getting Started Guide
Create a Data Collector Set to Monitor Performance Counters
I think this tool will help you
System-Resources-Monitoring
System Monitoring
I am currently working on an application which is a client server based application. The client and server will be on a wireless network with limited bandwidth and both could be moving. I need to simulate latency and BER issues in order to test and ensure that my application's performance does not degrade too much.
I was wondering if there are any routers available which will allow me to introduce latency and also increase or reduce the BER. If anyone knows of such a router which I can buy from the market or a software which I can install to simulate this on LAN, please do answer.
Thanks.
You can try netem if your application running in Linux.
With it, You can simulate packet delay, loss, corruption .etc
Detailed information please refer:
http://www.linuxfoundation.org/collaborate/workgroups/networking/netem
I am doing a project on a centralized LAN management system. I need to know how many CPU cycles is each process of a remote PC consuming(as in a Task Manager )so that the network admin can close few processes,in case the CPU utilization of a system in network goes beyond acceptable rates..
I would like to know if there is a Win32 API for this requirement of mine n if so ,i request you to give me information about it..
thank you in advance..
Win32 API has lots of functions to find all kinds of information about currently running processes and threads, here's a link to the full list of them: http://msdn.microsoft.com/en-us/library/ms683223(VS.85).aspx
Explore the list and you should be able to find the function(s) there that meet your requirements, for example GetProcessTimes() returns structures that contain the amounts of time the process has executed in kernel mode, in user mode, etc.
You need to look at the performance monitor system. You can get the stats from there (in the Process counter).
Here's a (delphi) explanation of it, that's pretty good and simple to understand.
When you understand how it all works, you then need the Performance Counters API to read the data counters.