Questions tagged [cpu]
A central processing unit executes the instructions in a computer program. Use this tag for questions about programming with/for CPUs or their processor cores.
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Can you have multiple copies of same data in cpu cache
From wikipedia https://en.wikipedia.org/wiki/Cache_coherence
Multiple copies of same data can exist in different cache simultaneously and if processors are allowed to update their own copies freely, ...
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Can false sharing happen in Direct-Mapped Cache?
If each address in memory is directly mapped to deterministic location in cache, cache coherence is not needed because all thread that access share data share the same cache.
Ie. Within the context of ...
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do we also need to place modifications in the SConstruct file?
I Am working with DVFSHandler, and I want to know if we want to place some changings in the DVFShandler.py and corresponding dvfs_handler.cc and .hh, do we also need to place modifications in the ...
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What can i check or do for my high CPU utilisation [closed]
I seem to being experiencing a very intermittent cause on my Random servers of 100% CPU which seems to be SQL Server. When this happens, I'm unable to login to the SQL instance to access the databases....
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How to use all CPU cores in Raspberry Pi for mount.davfs process
I've configured a drive map using mount.davfs in Raspberry Pi 4 working OK. We can access the mounted drive and see and use all files. The issue we are facing is that when the usage of the volume is ...
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Difference between an 8-bit addressable CPU and an 8-bit CPU [closed]
I was recently given a test and they mentioned that the CPU was an 8-bit addressable one. They wanted me to write a C program that would write a character of arrays to some specific location in the ...
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Why is the transpose operation commonly used to change the view of data rather than operating in memory? [closed]
Why is the transpose operation commonly used to change the view of data rather than operating in memory?
Changing the data view will obviously bring about the problem of no longer needing to copy the ...
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High CPU by circle animation with gradient
By using the following SwiftUI code the CPU consumption caused by my app is up to 55% when the app is running in XCode (simulator) with an M1.
On the real iPhone the CPU is up to 52%
FYI: the ...
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tensorflow tfreocrd dataset load slow,how can I sovle this bottleneck,changing params like num_parallel_calls seems no use
I have tried to change almost all the params tf.Dataset offered,but all my effort seems no useful.Loading data is my bottleneck.
Here show my code and other details.
def feture_name(column, ...
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Reduce CPU usage for cargo run
During cargo run, rustc by default takes up all CPU resources. Is it possible to limit CPU usage? For example, cpulimit -l 40 works for cargo, but rustc processes still use 100% of the CPU.
Fedora ...
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want to get top 'N' cpu consuming process in the system using java default library
is there any builtIn library available in java to get the top 'n' cpu consuming process name and the percentage it's consuming.i want this program to work in any os such as windows,linux.
i tired with ...
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What happens with the store "that lost race" to shared memory in x86 TSO memory model?
I know that x86 processors use TSO memory model and I am curious about one thing. I will explain it through example.
We have two processors (P1 and P2) where P1 stores X=1 to its store buffer and P2 ...
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How to store items in the LIFO stack in a cache-friendly manner?
EDIT / DISCLAIMER:
It appears that my understanding of cache lines was wrong which makes this question not relevant and misleading. I thought whenever CPU tries to fetch a memory at a specific index, ...
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Why does io_uring read a file so slowly in polling mode?
Problem Summary
I am working on a project that requires using io_uring with polling mode, but now I have encountered two problems:
I need to run it several times before I can output the content; ...
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How can I measure the memory and cpu used by a specific request in ASP.NET Core Web API?
I want to see which API calls use more memory and cpu.
I tried to create middleware that tracks memory and cpu usage and they can't track only current request's metrics. I want to see which API calls ...
