11-19-2008
What is a POSIX lib? libpthread.so is the POSIX threads library for a system that supports POSIX threads. How they are implemented is up to the kernel developer, not POSIX.
For Linux there is one API call: clone() that is unique to linux. It is used to exec new processes to be used mostly for threads.
Is POSIX scalable; multiprocessor support?
This does not make much sense to me:
POSIX is a standard, a set of rules - like a green traffic signal means "go". It doesn't say how big or bright the green light has to be. Just says 'must be green'
9 More Discussions You Might Find Interesting
1. Programming
hi all,
can anyone tell me some good site for the mutithreading tutorials, its application, and some code examples.
-sushil (2 Replies)
Discussion started by: shushilmore
2 Replies
2. UNIX for Dummies Questions & Answers
Hi all,
I am sorry, I know this is not correct forum/silly question (usually this is requirement in some vacancies), but i hope someone can explain to me, what is the meaning of :
SUN Tier 3 Support
Tier 3 Application Installation
Level 2 Solaris
Level 2 AD MOM + DBA
Thank you. (0 Replies)
Discussion started by: blesets
0 Replies
3. Solaris
required Solaris 5.10 Kernel patch 137111-03
required Solaris 5.10 Fibre Channel Device Driver patch 125184-08
I want to know about the descriptions and what the patches will do. I searched www.sun.com (patches/updates) but don't see I am looking for. (1 Reply)
Discussion started by: Y4Net
1 Replies
4. UNIX for Dummies Questions & Answers
Hi,
I want to learn that all the family of x86 processors are supported by kernel.
I want to buy a board, which has VIA ESP10K processor and
CHIPSET: VIA CN333 north bridge & VIA VT8237R south bridge
Where can I find this?
Thanks. (5 Replies)
Discussion started by: yildiz.a
5 Replies
5. UNIX for Dummies Questions & Answers
Hello, I have a question regarding ACLs and their availability across different Unix platforms via NFS share.
If I have an AIX/FreeBSD/Solaris/HP-UX client that has an nfs share from a different system mounted on it, will the ACLs on the nfs share be processed properly?
My guess is that as... (2 Replies)
Discussion started by: bstring
2 Replies
6. Solaris
Hi,
Anyone able to advise on how to find the kernel patch level of an ABE?
showrev and uname -a will provide kernel patch details of the running environment, but how can I run these commands against the ABE or where do these commands get their information from i.e. is the kernel patch level... (3 Replies)
Discussion started by: CiCa
3 Replies
7. Ubuntu
Does anyone know at which kernel version support for Phenom II x6 first appeared? (7 Replies)
Discussion started by: Varsel
7 Replies
8. Solaris
folks,
I have a query. Can we create Kernel zone with the earlier Solaris OS?
More precisely Can i create kernel zone with any different OS than that of OS in global zone. As of now in sol11U2 if we create kernel zone, there will be sol11u2 OS in kernel zone since the same is in global.
But... (4 Replies)
Discussion started by: Vaishey
4 Replies
9. UNIX for Beginners Questions & Answers
Not just background process running ... but im looking if unix has any multi-threading concept like in Java, C# ... if not present, can you pls share the nearest feature in unix that is close to multi-threaded concept (3 Replies)
Discussion started by: i4ismail
3 Replies
LEARN ABOUT CENTOS
vfs_aio_fork
VFS_AIO_FORK(8) System Administration tools VFS_AIO_FORK(8)
NAME
vfs_aio_fork - implement async I/O in Samba vfs
SYNOPSIS
vfs objects = aio_fork
DESCRIPTION
This VFS module is part of the samba(7) suite.
The aio_fork VFS module enables async I/O for Samba on platforms where the system level Posix AIO interface is insufficient. Posix AIO can
suffer from severe limitations. For example, on some Linux versions the real-time signals that it uses are broken under heavy load. Other
systems only allow AIO when special kernel modules are loaded or only allow a certain system-wide amount of async requests being scheduled.
Systems based on glibc (most Linux systems) only allow a single outstanding request per file descriptor.
To work around all these limitations, the aio_fork module was written. It uses forked helper processes instead of the internal Posix AIO
interface to create asynchronousity for read and write calls. It has no parameters, it will create helper processes when async requests
come in as needed. Idle helper processes will be removed every 30 seconds.
This module is stackable.
EXAMPLES
Straight forward use:
[cooldata]
path = /data/ice
vfs objects = aio_fork
VERSION
This man page is correct for version 4.0.0 of the Samba suite.
AUTHOR
The original Samba software and related utilities were created by Andrew Tridgell. Samba is now developed by the Samba Team as an Open
Source project similar to the way the Linux kernel is developed.
Samba 4.0 06/17/2014 VFS_AIO_FORK(8)