Gilles Chanteperdrix wrote:
Jan Kiszka wrote:
Hi Gilles,
don't know yet what's going wrong, but the following demo code doesn't
compile against the POSIX skin due to unresolved SIG_BLOCK:
#include pthread.h
#include signal.h
int main()
{
return
Jan Kiszka wrote:
Gilles Chanteperdrix wrote:
Jan Kiszka wrote:
Likely too simple: The periodic IRQ seems to pop up on every CPU so that
the TSC could be recorded, but will this happen synchronously? At least
we will see (IRQ) jitters, and those jitters could already create in
Gilles Chanteperdrix wrote:
Jan Kiszka wrote:
Gilles Chanteperdrix wrote:
Jan Kiszka wrote:
Likely too simple: The periodic IRQ seems to pop up on every CPU so
that
the TSC could be recorded, but will this happen synchronously? At
least
we will see (IRQ) jitters, and
Gilles Chanteperdrix wrote:
Jan Kiszka wrote:
...
I found this while trying Thomas Gleixner's cyclic test over the POSIX
skin (http://www.tglx.de/projects/misc/cyclictest). After fixing a
rather ugly bug in his code (missing mlockall) I ran into a yet unknown
issue with the POSIX
