cpu-speed Questions
2
I have an application where I need to build a list or a dictionary and speed is important. Normally I would just declare a list of zeros of the appropriate length and assign values one at a time bu...
Cockatiel asked 22/9, 2016 at 14:10
7
Solved
for example AMD Ryzen 5 1600 has 6 (2 logical cores per physical) cores with Clockspeed: 3.2 GHz Turbo Speed: 3.6 GHz .
In contrast, Intel Core i5-7600 has 4 cores with Clockspeed: 3.5 GHz
Turbo S...
Aimee asked 25/5, 2017 at 16:54
2
My Ubuntu machine's performance is terrible for R kmeans {stats}, whereas Windows 7 shows no problems.
X is a 5000 x 5 matrix (numerical variables).
k = 6
My desktop machine is an Intel Xeon CPU ...
Punchboard asked 17/1, 2014 at 3:2
15
Solved
When I used to program embedded systems and early 8/16-bit PCs (6502, 68K, 8086) I had a pretty good handle on exacly how long (in nanoseconds or microseconds) each instruction took to execute. Dep...
Fullback asked 11/1, 2009 at 15:53
3
Solved
I would like to do some microbenchmarks, and try to do them right. Unfortunately dynamic frequency scaling makes benchmarking highly unreliable.
Is there a way to programmatically (C++, Windows) f...
Tetrahedron asked 20/10, 2010 at 7:20
5
Solved
My Django application is insanely slow, I want to figure out what is taking time :
I tried Django-debug-toolbar but was unable to find a panel that can give me the break-up of the load time.
My r...
Divinadivination asked 29/5, 2012 at 13:17
1
I'm writing an audio device driver which needs to process device interrupts in real-time. When the CPU enters C3 state, interrupts are delayed, causing problems to the driver.
Is there a way for th...
Histoplasmosis asked 24/1, 2018 at 10:33
5
Solved
ATLAS 3.10.1 will not install on my organization's CentOS 6.x platform because it detects CPU throttling. In older versions of the package, there was a configure flag to turn the throttle check off...
Saffier asked 29/1, 2013 at 21:13
5
Solved
I'm trying to find out if there is anyway to get an idea of the CPU frequency of the system my C code is running on.
To clarify, I'm looking for an abstract solution, (one that will not be tied to...
0
I have been trying to investigate the effects of changing clock speed in Raspberry Pi in a multi-core system development project. In this regards, I have to change the clock frequency of the Raspbe...
6
Solved
Programs like CPUz are very good at giving in depth information about the system (bus speed, memory timings, etc.)
However, is there a programmatic way of calculating the per core (and per process...
1
Solved
I'm using a Dell Latitude E7440 Laptop with Windows 7 Enterprise OS, 8GB RAM, 64-bit OS, Intel(R) Core(TM) i7-4600U CPU @ 2.10GHz Processor, 2701 Mhz, 2 Cores, 4 Logical Processors (that's 4 cores)...
7
Solved
How much faster can an algorithm on CUDA or OpenCL code run compared to a general single processor core? (considering the algorithm is written and optimized for both the CPU and GPU target).
I kno...
2
Solved
I'm kinda confused about the exact definition of a "machine cycle".
For example, some source online say that it is:
The four steps which the CPU carries out for each machine language instructi...
Byrd asked 6/8, 2016 at 16:20
1
Solved
I have developed a high performance Cholesky factorization routine, which should have peak performance at around 10.5 GFLOPs on a single CPU (without hyperthreading). But there is some phenomenon w...
Bleary asked 1/4, 2016 at 18:41
2
I want to change the cpu frequency. I have install cpufrequtils.
the command "cpufreq-info" give me information
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bug...
1
Solved
I have been told that for I/O bound applications, non blocking I/O would be better. For CPU bound applications, blocking I/O is much better. I could not find the reason for such a statement. Tried ...
Giles asked 19/1, 2016 at 13:11
1
Solved
I'm trying to find out where this value is stored in both windows and osx, in order to do some calculations to make a better task distribution.
Core speed in Hz
Thanks in advance.
Using th...
1
Solved
Paraphrasing from in "Programming Pearls" book (about c language on older machines, since book is from the late 90's):
Integer arithmetic operations (+, -, *) can take around 10 nano seconds where...
Trivandrum asked 16/1, 2015 at 5:31
4
Solved
I would like to detect how fast is the device on which my Android application is running?
Is there any API to do it on Android? Or do I have to benchmark it by myself?
If the device has slow CPU ...
Sural asked 2/2, 2011 at 14:12
2
Here is my cat /proc/cpuinfo output:
...
processor : 15
vendor_id : GenuineIntel
cpu family : 6
model : 26
model name : Intel(R) Xeon(R) CPU E5520 @ 2.27GHz
stepping : 5
cpu MHz : 1600.000
cache ...
Yukyukaghir asked 9/6, 2011 at 7:57
1
I am trying to optimize my Python code. Between:
y = x*x
or
y = x**2
if I need one trillion iterations in a speed-critical program, which one should I choose?
Staford asked 25/12, 2013 at 20:57
1
Solved
I was able to find the theoretical DP peak performance 371 GFlop/s for the Xeon E5-2690 in this Processor Comparison (interesting that it is easier to find this information in Intel's competitor th...
Cushitic asked 2/10, 2013 at 9:59
3
Solved
Sorry for may be too abstract question, but for me it is quite practical + may be some experts had similar experience and can explain it.
I have a big code, about 10000 lines size.
I notices that...
Hart asked 28/10, 2013 at 16:12
5
Solved
I just bought a nifty MBA 13" Core i7. I'm told the CPU speed varies automatically, and pretty wildly, too. I'd really like to be able to monitor this with a simple app.
Are there any Cocoa or C ...
1 Next >
© 2022 - 2024 — McMap. All rights reserved.