Very Computer

by **Kim Youngh** » Mon, 28 May 2001 00:05:04

I heard that FreeBSD file system is better than linux because BSD use
synchronous I/O instead of asynchorous I/O.

This mean FreeBSD doesn't support asynchorous i/o call such as posix 1.g
aio_xxxxx ?

by **Nithyanandha** » Mon, 28 May 2001 01:27:52

> I heard that FreeBSD file system is better than linux because BSD use
> synchronous I/O instead of asynchorous I/O.

You can't blindly say that FreeBSD is better than Linux. There are so many
factors
to be considered like NFS speed, scheduler robustness, memory requirement
etc.

FreeBSD provides slower but safer synchronous disk access. Safer meaning
it will be better for recovery of data after crashes.
But linux provides asynchronous faster disk access.

better post this in someother FreeBSD /Linux related newsgroups. You can
have
better detailed discussion on this.

Hth,
Nithyanand.
Siemens, Bangalore, India.

by **David Schwart** » Mon, 28 May 2001 04:04:06

> I heard that FreeBSD file system is better than linux because BSD use
> synchronous I/O instead of asynchorous I/O.
> This mean FreeBSD doesn't support asynchorous i/o call such as posix 1.g
> aio_xxxxx ?

No, they're talking about how I/O is done between the kernel and the
disk, not how it's done between an application and the kernel. The aio_
functions have nothing to do with file systems.

DS

Very Computer

What does it mean synchronous in FreeBSD?

What does it mean synchronous in FreeBSD?

What does it mean synchronous in FreeBSD?

What does it mean synchronous in FreeBSD?