RampUp | NET library providing performant low-alloc algorithms | Learning library
kandi X-RAY | RampUp Summary
kandi X-RAY | RampUp Summary
RampUp is a .NET library providing a performant low/no-alloc environment for demanding systems. It's based on understanding the modern hardware and applying the mechanical sympathy.
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Community Discussions
Trending Discussions on RampUp
QUESTION
I am trying to make a macro that assigns the name of maneuver (Ramping Up, Flat Cruise, Ramping Down) for specific behaviour of set of data. I decided to divide the large data set into subsets that consist 5 cells and the code is checking its behaviour (either is the value getting smaller or bigger).
.csv file consists more or less 20k rows and the code iterates through it for 5 minutes. Can I make it somewhat faster?
The outer for loop is dividing the set of data into subsets that consists 5 cells. Slow iterators manipulate those values.
Then it just assigns values depending the values in cells are decreasing or increasing
...ANSWER
Answered 2022-Feb-17 at 14:47Read/write to/from cell is usually a very slow action so you will want to avoid that as much as possible.
Instead, store the values into an array then process the logic through the array.
Without changing too much of your logic, this is probably what an array approach looks like:
QUESTION
Asked a similar question before, but I marked it answered, and I have other information.
Here is the structure:
...ANSWER
Answered 2022-Feb-14 at 09:33Since you're doing
QUESTION
The following snapshot shows the file structure:
When I run on Gitlab CI, here is what I am seeing:
Why is this error occurring when Gitlab runs it but not when I run locally?
Here is my .gitlab-ci.yml
file.
Note that this had been working before.
I recently made win_perf_counters
a Git submodule instead of being an actual subdirectory. (Again, it works locally.)
ANSWER
Answered 2022-Feb-03 at 12:05Probably the python libraries you are using in your local environment are not the same you are using in gitlab. Run a pip list
or pip freeze
in your local machine and see which versions do you have there. Then pip install those in your gitlab script. A good practice is to have a requirements.txt or a setup.py file with specific versions rather than pulling the latest versions every time.
QUESTION
Load Runner controller : After Rampup is attained we see a dip in Vusers and then target Vusers are attained. This causes load to fluctuate and response time been affected. What can I look into next?
In screenshot below we can see after target of 1800 users is attained at 00.50 again Vusers falls back to 1500 users and then ramped up to 1800. This happens in most of the runs from Load Runner.
...ANSWER
Answered 2022-Jan-19 at 14:19It was solved by changing the Runtime Settings --> Logs --> Detail Level to Standard
Issue was occurring because Detail Log level was set to Extended.
QUESTION
This is based on the answer in JMeter & Gitlab: How to Install & SQLServer JDBC Driver?.
In short, the debug output below shows that the appropriate JAR and DLL are in the Java-path on the Docker image, yet I am seeing the following error in the JMeter output:
- "DBCP DataSource configured without a 'password'" mssql
- "DBCP DataSource configured without a 'user'" mssql
The image uses JMeter 5.4.2 ("latest").
The JDBC driver files I am using are:
- mssql-jdbc_auth-9.4.1.x86.dll
- mssql-jdbc-9.4.1.jre8.jar
So is it a compatibility issue?
I have JMeter 5.4.1 installed on my computer, and the test plan works fine using the local application.
Here is the output from the Gitlab job:
...ANSWER
Answered 2022-Jan-10 at 06:33I don't think you can use SQL Server integrated authentication from Linux machine.
In order to be able to use the approach with the Microsoft JDBC Driver and integrated authentication you need to run your builds on a Windows Runner
In case you have to use Linu you can work it around using JTDS JDBC Driver and connection string like:
QUESTION
I have an issue with a Jmeter scenario where my dashboard report is getting a start time of Start Time "1/1/70, 12:00 AM"
The end time is working fine
End Time "12/11/21, 10:04 PM"
In the same script, If I disable the thread group hitting this issue and run another thread group, the start time is ok. This leads me to think it's a problem with the timing in this particular thread group rather than a problem with my JM props.
I am attempting to simulate long (1 hour +) websocket sessions with a start/pingpong/end.
Runtime controller with a sub loop controller running the websocket ping/pong in the middle.
The ping/pong uses a runtime controller where duration = rampup + full load time.
The pingpong loop controller runs every 60 sec for the duration of the thread rampup + full load.
The overall threadgroup duration is (rampup x 2) + full load.
As far as I can tell all of this adds up to long running threads doing the needed txns, while keeping open websocket connections, and running as expected.
I set DEBUG for Report logging and nothing unusual is jumping out at me as a cause. (Those relevant logs below)
The only Report related JMeter props that I am customizing at runtime or otherwise are the following:
...ANSWER
Answered 2021-Dec-13 at 06:46It sounds like a bug in JMeter or in the WebSocket Sampler plugin, if you replace the plugin with some other sampler, like Debug Sampler or Dummy Sampler and the issue will be reproducible - raise an issue in JMeter Bugzilla
If the issue occurs only with WebSocket Samplers plugin open the issue in the plugin repository
In the meantime you can override the test start date by setting jmeter.reportgenerator.start_date
just like you override the granularity and the test title.
QUESTION
I have been programming an API using Django and djangorestframework for deployment in Google App Engine. The API is basically a package registry, so you can create, update, get, and delete packages with the API.
All the endpoints seem to work except for one. The only endpoint that doesn't work is one that display a paginated list of all packages in the online registry.
All the endpoints are working, but for some reason, when I hit the specific endpoint '/packages/', GCP gives me the error
...ANSWER
Answered 2021-Nov-12 at 20:35You are making a GET
call to /packages/
which is handled by the route definition packages_middleware(request)
.
In that function you have queries = request.data
and the rest of your logic is dependent on queries
. This document says request.data
is for POST, PATCH, PUT. If that is correct, then that seems like where your error lies.
You can put a print statement just before and after that line and see if your App prints the statement after. That will help you confirm if that is the issue.
You should also print the contents of queries
. Since you're not actually sending a body with your GET request, it is possible that the rest of your logic fails because the value of queries
is not what you're expecting.
QUESTION
Hi Need clarification for python variable stored as wrong value , here is code :
...ANSWER
Answered 2020-Dec-01 at 17:30You can concate only strings, so before concate all your userinputs you must "convert" them into strings
Example1:
QUESTION
I installed JMeter 5.3, created one thread group with 10/10/10 (users/rampup time/loop count), so I expect to get 100 requests executed total and see graph with one line which will show how long requests take, BUT I see that 300 requests were executed and my report dashboard looks like this:
...ANSWER
Answered 2020-Nov-06 at 11:57There could be 2 possible reasons:
Your server redirects you somewhere so you see these extra requests as redirect targets (like from HTTP to HTTPS, from landing page to language-specific page, etc)
like here:
You have Retrieve all embedded resources option enabled on "Advanced" tab of the HTTP Request sampler so JMeter parses the response and downloads extra data like images, scripts, styles, fonts, etc.
Most probably the behaviour is valid, if you want to check the URL for the sub-requests you can run your test in GUI mode with Functional test mode
option enabled on Test Plan level - this way you will be able to see the URLs for the secondary requests:
QUESTION
I am completly new to zsh, come to it after discovering that macosx on catalina highly push to it. While I got a bit disoriented at first, I managed to rampup my knowledge of it, and so far I am about happy with it. Yet I bump into an issue that I can't solve with a trivial setopt, so may be one out there can help me.
The problem I got is with regular indexed arrays, like the following snippet
...ANSWER
Answered 2020-Oct-11 at 15:42I don't work with zsh
so fwiw ...
A bit of research shows zsh
array indexes are sequential from 1
to #
(number of elements in array).
I couldn't find any references to populating a sparse array (eg, index = 1, 1000000 or 10000000).
Under zsh
I ran:
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