Víctor Córcoles López wrote:
Hello developers. My English is not good.
I see that DMA in Hard Disks in guest OS Windows 2000/XP/2003 is not
avalaible, it run in PIO mode.
How can activate UDMA mode for hard disk ?
I don't think you'd get any advantage of activating DMA inside the qemu
My own experience is the effect of these types of optimizations is
usually negligible, although it is still the first thing I do when
optimizing a program. The main improvement I find is reducing the
time required to initialize variables and improved code readability.
If you know values are
Probably more important is to make sure none constant data structures
are done on the stack. There is no good reason why any code page
should be read-write.
Huh? this is nonsense.
You have three segements in an application (ignoring dynamic heap allocated
memory):
The RO segment that
Fortunately, it does make a difference.
PIO is polling-base, whereas DMA is, lacking a better term (excuse my
English), transaction-based. Since no CPU arbitration is needed, quite
a few optimizations can be done because of this, like real, large
block transfers. And if you happen to search the
On Wednesday 24 August 2005 15:38, Andreas Mohr wrote:
Hi,
On Wed, Aug 24, 2005 at 02:41:44PM +0100, Paul Brook wrote:
Probably more important is to make sure none constant data structures
are done on the stack. There is no good reason why any code page
should be read-write.
Huh?
On Wed, Aug 24, 2005 at 02:41:44PM +0100, Paul Brook wrote:
Probably more important is to make sure none constant data structures
are done on the stack. There is no good reason why any code page
should be read-write.
Huh? this is nonsense.
I stand corrected, I ment to say on the
Hi,
What I'm trying to achieve is to write a file from a guest OS to a host. In this case both are Windows OS.
I use the user network command line options since I looking for a no install on host, portablesolution.
I've tried various build in solutions: -tftp (read-only), and -smb (not
On Wed, 2005-08-24 at 19:23 -0700, Francois Rioux wrote:
I don't understand why this doesn't work. Is it Windows preventing the
write is the exchange this a limitation in QEMU or in SLiRP? As I
understand it SLiRP translates some tcp headers and acts as a firewall
preventing incoming calls
