rhia...@falu.nl (Rhialto) writes:
>For the standard HZ=3D100, one would expect the worst resolution to be
>1000/100 =3D 10 ms.
The resolution is 10ms, but since it waits for at least 10ms this can only
happen when the current tick interval is expiring in the same moment.
A loop waiting for the
rhia...@falu.nl (Rhialto) writes:
>I tried it on some fairly idle machines, and the result was quite
>consistent. It really looks like there is something in there that
>inadvertently always causes an extra tick delay.
tick
- some nanoseconds later
- you wake up
- you sleep for at least one tick
On Tue, Nov 24, 2015 at 12:25:45AM +0100, Rhialto wrote:
> In the context of the machine simulator simh, which needs some accurate
> timing now and then, I have come across an example of rather bad time
> resolution of the nanosleep() system call. The minimal sleep time seems
> to be 20 ms, even
In the context of the machine simulator simh, which needs some accurate
timing now and then, I have come across an example of rather bad time
resolution of the nanosleep() system call. The minimal sleep time seems
to be 20 ms, even if you ask for just 1 ms delay. If you ask for longer
sleeps, the
On Tue 24 Nov 2015 at 00:41:42 +0100, Joerg Sonnenberger wrote:
> On Tue, Nov 24, 2015 at 12:25:45AM +0100, Rhialto wrote:
> > In the context of the machine simulator simh, which needs some accurate
> > timing now and then, I have come across an example of rather bad time
> > resolution of the
This is an automatically generated notice of a NetBSD-current/i386
build failure.
The failure occurred on babylon5.NetBSD.org, a NetBSD/amd64 host,
using sources from CVS date 2015.11.23.23.46.33.
An extract from the build.sh output follows:
--- dependall-sys ---
This has already been fixed.
On Tue, 24 Nov 2015, NetBSD Test Fixture wrote:
This is an automatically generated notice of a NetBSD-current/i386
build failure.
The failure occurred on babylon5.NetBSD.org, a NetBSD/amd64 host,
using sources from CVS date 2015.11.23.23.46.33.
An extract from
Updating src tree:
P src/distrib/sets/lists/base/mi
P src/etc/mtree/NetBSD.dist.base
P src/etc/mtree/special
P src/etc/rc.d/ntpd
P src/lib/libcurses/setterm.c
P src/lib/libterminfo/terminfo.3
P src/share/man/man4/filemon.4
P src/share/man/man7/sysctl.7
P src/sys/arch/sparc64/dev/schizo.c
P
On 2015-11-24 01:58, Rhialto wrote:
On Tue 24 Nov 2015 at 00:41:42 +0100, Joerg Sonnenberger wrote:
On Tue, Nov 24, 2015 at 12:25:45AM +0100, Rhialto wrote:
In the context of the machine simulator simh, which needs some accurate
timing now and then, I have come across an example of rather bad
