Now that we no longer have MIN_REARM_TIMER_NS a bug in the audio subsys has
clearly shown it self by trying to make a timer fire every nano second.
Note we have a similar problem in 1.6, 1.5 and older but there
MIN_REARM_TIMER_NS limits the wakeups caused by audio being active to
4000 times / second. This still causes a host cpu load of 50 % for simply
playing audio, where as with this patch git master is at 13%, so we should
backport this to 1.5 and 1.6 too.
Note this will not apply to 1.5 and 1.6 as is.
Cc: qemu-stable@nongnu.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
(cherry picked from commit
b4350deed67b95651896ddb60cf9f765093a4848)
Conflicts:
audio/audio.c
*fixed to reflect 1.6 timer function/clock names
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
static void audio_reset_timer (AudioState *s)
{
if (audio_is_timer_needed ()) {
- qemu_mod_timer (s->ts, qemu_get_clock_ns (vm_clock) + 1);
+ qemu_mod_timer (s->ts,
+ qemu_get_clock_ns(vm_clock) + conf.period.ticks);
}
else {
qemu_del_timer (s->ts);