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Frequently Asked Questions

Can I lock a process/thread to a CPU?

The linux-kernel mailing list FAQ
RML) Yes, as of 2.5.8 the Linux kernel supports binding a process to a particular CPU. Patches exist for the 2.4 kernel series but are not yet merged (as of 28-APR-2002). This is called "task CPU affinity" and the interface was implemented via the following syscalls: which set and get a given task's CPU affinity, respectively. Utilities for manipulating affinity and the patches for 2.4 are available at kernel.org.

Why did you lock a thread on the forums?

Gay Authors: Common Facts and Questions
Locking the thread prevents anyone from posting to it (think read-only). Threads may be locked if the discussion has devolved to personal attacks, off-topic responses, or an endless horse-beating of something already discussed elsewhere on the GA forums. Threads that are locked are not inherently 'bad' (though some are). It just cuts off the discussion in recognition that there is nothing more of value to be said.

Why is the System Idle Process using 99% of my CPU?

The Broadband Reports Windows XP FAQ - dslreports.com
This process is a single thread running on each processor, which has the sole task of accounting for processor time when the system isn't processing other threads. In Task Manager, expect this process to account for the majority of processor time. The system idle process uses all the CPU time that is not used by anything else. CPU time is like any other time; you can't not use it. If you do nothing, you're still using time: you are using time to do nothing.

How much CPU does the audit process take?

Network Access Control
When idle or during a session, the CyberGatekeeper agent takes up less than 2% of CPU time. When a new session is initiated, it uses more CPU, for a short period (about 1 second). It then drops to the nominal idle usage.

How do I lock/unlock (close/re-open) a thread?

BbBoard :: Powerful, Free Message Board Hosting
To lock a thread, you must have moderation powers in the forum the thread was posted in, and your admin must have given you power to lock/unlock threads. There are 2 ways to lock/unlock a thread. The first is to open the thread, and select "Lock/Unlock Thread" in the "Mod Options" menu at the very top. The second is in the bulk options menu. View the forum the thread was posted in, and put a check in the box(es) next to the thread(s) you wish to lock/unlock.

What happens when a thread cannot acquire a lock on an object?

JAVA interview questions
If a thread attempts to execute a synchronized method or synchronized statement and is unable to acquire an object's lock, it enters the waiting state until the lock becomes available. The Reader/Writer class hierarchy is character-oriented, and the InputStream/OutputStream class hierarchy is byte-oriented.

What does "panic: Lock Held and only one CPU" mean?

Driver Development FAQs
This only occurs on a uniprocessor. It means that a spin mutex is held and it will spin forever because there is no other CPU to release it. This could be because the driver did not release the mutex on one code path, or blocked while holding it. A common cause of this panic is incorrect usage of a spin-type mutex used by the device's high-level interrupt handler.

Why do I get a CPU-bound rpc.ttdbserverd process?

Solaris 2 FAQ
rpc.ttdbserverd is the RPC-based ToolTalk database server. It creates and manages database files kept in TT_DB directories. See ttdbserverd(1M). The problem is usually caused by corrupted entries in some TT_DB directory. The solution is therefore to kill the running rpc.ttdbserverd, and to completely remove all local TT_DB directories. rpc.ttdbserverd will be restarted from inetd when it is needed again. And it will rebuild the TT_DB directories automatically.

How can you limit the CPU usage of a NTVDM process?

Telnet FAQ
Answer: On NT 4.0 or higher, increasing the Idle Sensitivity will decrease the CPU usage of a 16-bit process. The Idle Sensitivity can be set under the properties of the 16-bit executable Misc tab.

How do I spawn a thread?

Andy Mc's .NET Framework FAQ
Create an instance of a System.Threading.Thread object, passing it an instance of a ThreadStart delegate that will be executed on the new thread. For example: class MyThread { public MyThread( string initData ) { m_data = initData; m_thread = new Thread( new ThreadStart(ThreadMain) ); m_thread.Start(); } // ThreadMain() is executed on the new thread. private void ThreadMain() { Console.WriteLine( m_data ); } public void WaitUntilFinished() { m_thread.

How do I stop a thread?

Andy Mc's .NET Framework FAQ
There are several options. First, you can use your own communication mechanism to tell the ThreadStart method to finish. Alternatively the Thread class has in-built support for instructing the thread to stop. The two principle methods are Thread.Interrupt() and Thread.Abort(). The former will cause a ThreadInterruptedException to be thrown on the thread when it next goes into a WaitJoinSleep state. In other words, Thread.

Where's that Cupid thread?

RE: X-mass
I hope you're not calling your Christian siblings "pagans." Even if you don't agree with celebrating christmas, that's not at all kind. quot;A dog teaches a boy fidelity, perseverance, and to turn around three times before lying down.

What is the CPU?

Family Access to Medical Insurance Security
CPU stands for Central Processing Unit. The CPU runs the toll free customer service line and processes the FAMIS applications.

The IP-SNMP CPU process on my router spikes to 90% (or higher). Is this a bug?

Frequently Asked Questions
A. No, this is not a bug. It isn't unusual for IP-SNMP to take up 90% of the CPU on the router when the router is lightly loaded with other tasks. IP-SNMP runs at a low priority and a CPU usage of 90% or higher means that the router has the bandwidth to spend more time on SNMP.

Why is process printSaver.exe or printcz.exe taking high CPU usage?

CZ Print Management Software simplifies your print managemen...
If the process "printSaver.exe" is taking high CPU usage (90%), please check the followings: If CZ Print Job Tracker is run as a windows service, the default account to run CZ Print Job Tracker service is the Local System Account that doesn't have the administrator rights on network printers (e.g. \\ print_server\ shared_printer) because it can't access the remote computer (e.g. \\print_server computer).

When does a process release the redo allocation latch on a single CPU machine?

Frequently Asked Questions zu Oracle
When the process copies the entry into the buffer, there is only one redo allocation latch per instance. The number of CPU's only has an effect on redo copy latches.

What is a Thread?

Consultant Forum
A thread is a grouping of related posts. A thread contains one or more posts. The first post becomes the thread and replies to the original post increment details on the thread, such as the reply count or last post.

What is a 'thread'?

FAQ
A thread is a series of posts chronologically addressing the same topic. If a user 'initiates' a post addressing a brand new topic, then a new thread is thereafter generated, and this user is called 'starter' of this thread.
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