cpu

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What does "rep; nop;" mean in x86 assembly? Is it the same as the "pause" instruction?

What does rep; nop mean? Is it the same as pause instruction? Is it the same as rep nop (without the semi-colon)?[详细]

2023-03-28 08:40 分类：问答
Off-chip memcpy?

I was profiling a program today at work that does a lot of buffered network activity, and this program spent most of its time in memcpy, just moving data back and forth between library-managed network[详细]

2023-03-28 08:11 分类：问答
How to get CPU frequency in c#

How can I get in c# the CPU fre开发者_如何学编程quency (example : 2Ghz) ? It\'s simple but I don\'t find it in the environnement variables.[详细]

2023-03-26 00:30 分类：问答
Is there any way to fix/remodel this jQuery script so that it can consume less memory and go faster? (I'm using 1.6.2)

I\'m new to jQuery, I was making a slide carousel with it and I don\'t know if I miss something here so please take a look at my script:[详细]

2023-03-24 00:44 分类：问答
Profiled app with YourKit, still can't identify the CPU hog

I\'ve got a Java application that is consuming 100% of the CPU most of开发者_如何转开发 the time (as indicated by cacti and top monitoring). We fired up YourKit (which confirms the CPU resource issue)[详细]

2023-03-23 13:24 分类：问答
cache coherence protocol AMD Opteron chips (MOESI?)

If I may start with an example. Say we have a system of 4 sockets, where each socket has 4 cores and each socket has 2GB RAM[详细]

2023-03-23 01:10 分类：问答
High CPU usage of javascript - How to debug?

What is the best way to find the cause of high cpu usage of javascript? I have a script that simply loads photos from flickr in a thumbnail gallery. After they\'re loaded, nothing is being done (wai[详细]

2023-03-22 22:08 分类：问答
CPU instruction on multi-physical-cpu machine

I have 2 questions: 1. Can a machine have two or more CPUs which are different in model? 2. If I call CPUID instrucion, will result be any different when different CPUs perform it? (If the answer to q[详细]

2023-03-21 05:21 分类：问答
Unique id for user account in a machine(system user account)?

There are various开发者_开发技巧 ways to identify a system\'s unique id using Mac address, CPU id, motherboard id etc.[详细]

2023-03-21 00:38 分类：问答
SQL Server 2008 R2 Express limitations CPU, nr databases, max RAM?

This Thread is quite interesting: Limitations of SQL Server Express But I have further questions. http://msdn.microsoft.com/en-us/library/cc645993.aspx[详细]

2023-03-20 21:54 分类：问答