cpu | 易学教程

Tensorflow Object Detection inference slow on CPU

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问题 System information What is the top-level directory of the model you are using: object_detection/ssd_inception_v2 Have I written custom code (as opposed to using a stock example script provided in TensorFlow): No OS Platform and Distribution (e.g., Linux Ubuntu 16.04): Ubuntu 16.04 TensorFlow installed from (source or binary): binary TensorFlow version (use command below): 1.2.1 Bazel version (if compiling from source): no CUDA/cuDNN version: cuda 8.0 GPU model and memory: Quadro M6000 24GB

How is code stored in the EXE format?

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问题 My questions are as follows: How does the Portable Executable format (on windows/unix) relate to the x86/x64 instruction set in general? Does the PE format store the exact set of opcodes supported by the processor, or is it a more generic format that the OS converts to match the CPU? How does the EXE file indicate the instruction set extensions needed (like 3DNOW! or SSE/MMX?) Are the opcodes common across all platforms like Windows, Mac and unix? Intel i386 compatible CPU chips like ones

Is Intel QuickPath Interconnect (QPI) used by processors to access memory?

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问题 I have read An Introduction to the Intel® QuickPath Interconnect. The document does not mention that QPI is used by processors to access memory. So I think that processors don't access memory through QPI. Is my understanding correct? 回答1: Yes, QPI is used to access all remote memory on multi-socket systems, and much of its design and performance is intended to support such access in a reasonable fashion (i.e., with latency and bandwidth not too much worse than local access). Basically, most

Get the Percentage of Total CPU Usage

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I am trying to get the % of total CPU usage to a label1.Caption I've searched and found these: didn't work - http://www.vbforums.com/showthread.php?345723-DELPHI-Get-CPU-Usage not what I need - http://delphi.cjcsoft.net/viewthread.php?tid=42837 also found bunch of solutions regarding calculating the Usage per process but that is not what i am looking for , i just want the total CPU usage like this widget : this is what i am working on : I believe there is a simple way like when we get RAM usage. GlobalMemoryStatus(RamStats); Label1.Caption := Format('RAM: %d %%', [RamStats.dwMemoryLoad]); I

How to get CPU utilization in % in terminal (mac)

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问题 Ive seen the same question asked on linux and windows but not mac (terminal). Can anyone tell me how to get the current processor utilization in %, so an example output would be 40% . Thanks 回答1: This works on a Mac (includes the %): ps -A -o %cpu | awk '{s+=$1} END {print s "%"}' To break this down a bit: ps is the process status tool. Most *nix like operating systems support it. There are a few flags we want to pass to it: -A means all processes, not just the ones running as you. -o lets us

How can I test the user's computer's processing power using Javascript?

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I made a pretty CPU intensive webpage with lots of CSS3 and Javascript. I want to use Javascript to test if the user's computer is capable of handling the scripts. I think a possible method is to run some CPU intensive scripts and see how long it took. However, I don't know how to actually implement this. Here's the webpage: http://leojiang.me/ (3D cube only viewable in webkit browsers). You can profile how long it takes to render a frame or a couple of frames that should give you and idea of what fps would be on the client. var StartTime = new Date().getTime(); BenchMarkTestFunction(); //

c# Environment.ProcessorCount does not always return the full number of Logical Processor, why?

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On my machine, windows 7 - Enterprise with 1 x Intel Xeon E5-1660 0 @ 3.30Ghz (6 cores/cpu with Hyper Threading activated), Environment.ProcessorCount return 12 which is exact. On a Windows Server 2012 with 2 x Intel Xeon E5-2697 v3 @ 2.60GHz (14 cores/cpu with Hyper Threading activated(I think because task manager show: 2 sockets, 28 cores, 56 logical processors)), Environment.ProcessorCount return 28 which appears to us as wrong because 2x14x2 = 56. Why on Windows Server 2012 c# method Environment.ProcessorCount does not return the proper number of logical processors? As Additional

generate CPU load in Java

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I am conducting some throughput testing. My application has to read from JMS do some processing write to JMS My goal here is to simulate #2, 'some processing'. That is, introduce a delay and occupy the CPU for a given time (e.g. 500ms) before forwarding the event. The naive approach would be to Thread.sleep(500) . This would introduce the right delay in execution, but would not exercise the CPU. Calculating Fibonacci numbers is one option. Has anyone used any interesting techniques just to keep CPU(s) busy for a given time? Ideal characteristics would be: Performs a variety of instructions,

Python - get process names,CPU,Mem Usage and Peak Mem Usage in windows

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问题 I am wanting to get a list of all the process names, CPU, Mem Usage and Peak Mem Usage. I was hoping I could use ctypes. but I am happy to hear any other options. Thanks for your time. 回答1: You can use psutil. For example, to obtain the list of process names: process_names = [proc.name() for proc in psutil.process_iter()] For info about the CPU use psutil.cpu_percent or psutil.cpu_times . For info about memory usage use psutil.virtual_memory. Note that psutil works with Linux, OS X, Windows,

【原创】CPU 100%+磁盘写满问题排查

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情景：测试人员在进行 RabbitMQ 服务器问题排查时，进行了各种重启操作，之后突然发现机器变的很卡。排查过程： 1. 通过 top 查看，发现名为 sa 的进程 CPU 占用率几乎 100% 。 2. 查看 sa 进程中哪个线程占用 CPU 比较高 [root@rmq_2 ~]# top -Hp 1362 top - 05:36:26 up 2 days, 3:08, 2 users, load average: 1.77, 3.69, 5.11 Tasks: 16 total, 0 running, 16 sleeping, 0 stopped, 0 zombie Cpu0 : 0.4%us, 2.8%sy, 0.0%ni, 95.7%id, 0.0%wa, 1.1%hi, 0.0%si, 0.0%st Cpu1 : 0.4%us, 14.7%sy, 0.0%ni, 29.4%id, 53.8%wa, 0.0%hi, 1.8%si, 0.0%st Cpu2 : 0.7%us, 2.1%sy, 0.0%ni, 95.9%id, 0.0%wa, 0.0%hi, 1.4%si, 0.0%st Cpu3 : 0.3%us, 5.8%sy, 0.0%ni, 77.1%id, 16.4%wa, 0.0%hi, 0.3%si, 0.0%st Mem: 3924376k total,