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Windows CPU Memory Network Performance Statistics Article 4 CPU multi-core CPU core usage C ++
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Today, a problem arises: what is a 32-bit CPU, a 32-bit OS, and a 32-bit program? Why can 32-bit CPU only support 4 GB memory?
This problem occurs. Today, I ran SSIS and found that the memory was not enough. I checked the memory and found that 4 GB memory only showed more than 3 GB memory. I want to add memory. But I
Tags: code image send delay bandwidth technology pre class sendWithout assembly, the number of threads is simplified to a direct while loop recv, setsockopt so_sndbuf, So_rcvbuf set to 256*1024, the test result in a short time is 6.7gb/s. But the long test results are as follows: The horizontal axis of the ROS receives the number of event, in 40000 units. (x, Y) indicates that when Ros receives the x*40000 event, the bandwidth of the receiving end is Y gbits/s. Event size is 2KB. As can be seen
I will upload my new book "Write CPU by myself" (not published yet). Today is 12th articles. I try to write them every Thursday.
Change the title of "self-writing processor" to "self-writing CPU".
4.3 verify the implementation of openmips 4.3.1 instruction memory Rom
This section checks whether our openmips is implemented correctly, including: whether the pipeline is correct and whether the Ori command is
,nettest?By comparing the code of Nettest and Ros, it was found that there were two more socket option settings in the ROS code: SO_SNDBUF,SO_RCVBUF, both of which were set to 256*1024. Comment out the two settings options and test again.Bandwidth send-side CPU utilization at the receiving end CPU usageROS 4.42gb/s, 80% 100%Ros_directrecv 6.7gb/s 83% 100%Ros_directrecv_nosetsockopt 4.46gb/s 100% 70%Iperf 4.
I will upload a new book "write CPU by yourself", which is 44th today.There have been many things over the past few days and they have not been updated for a long time.9.3.4 modify the top-level OpenMIPS moduleBecause some modules have added interfaces, you need to modify the top-level module OpenMIPS to connect the new interfaces. At the same time, we can see from Figure 9-19 that the MEM module has added several interfaces for data storage
best textbook on volume rendering and ray casting algorithms I have found is "Advanced illumination techniques for GPU-based volume raycasting" written by Markus hadwiger and others ". This book was published on Siggraph asia2008. It is the latest and authoritative teaching material available for the moment, with a total of 166 pages. Students with good English reading ability can take a look.
This chapter is the last chapter of this book. At last, we hope that China's computer science can trul
1. Preface
The processor is a complex system. It is not a one-stop process. It is a product that has been continuously upgraded, updated, and designed, and is still being updated.
The processor can only run a series of commands, each of which is just a simple operation, such as adding numbers. Commands must also be encoded. These codes are composed of binary digits of 0 and 1 of a certain rule. These codes are collectively referred to as the instruction set of the processor.
To be continued
I will upload my new book "Write CPU by myself" (not published yet). Today is 13th articles. I try to write them every Thursday.
4.4 create the MIPs compiling environment
The openmips processor is designed to be compatible with the mips32 instruction set architecture. Therefore, you can use the existing GNU development tool chain under the mips32 architecture. This section describes how to install and use the GNU development tool chain and how to cre
Will be uploaded I wrote a new book, "Write Your Own CPU" (not yet published), today is the 23rd, I try to four weekly6.4Test ProgramThis section will verify that the mobile operation instructions added to the Openmips processor are implemented correctly with a test program as follows, corresponding to the book with the CD code\chapter6\asmtest The Inst_rom in the directory . S file. . org 0x0.set Noat.global _start_start://Give register $, $, $, $
Instruction Set
Y86 Instruction Set
Operator: addl, subl, andl, and xorl
Jump character: JMP, jle, JL, je, JNE, jge, andjg
Condition characters: cmovle, cmovl, cmove, cmovne, cmovge, and cmovg
Others: Call, pushl, popl, halt
Registers
% Eax, % ECx, % edX, % EBX, % ESI, % EDI, % ESP, % EBP
The stack pointer has % ESP.
The address where the PC stores the current command
Condition code (Status Code)
1. Normal Command Execution
2. Pending
3. invalid read/write address
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