Re: Timer delays in VM

2022-02-28 Thread Peter Maydell
. On Mon, 28 Feb 2022 at 07:04, Eugene Huang wrote: > I am running qemu on an arm64 CentOS host. Inside a ubuntu VM, a process runs > a timer created using timer_t: > > ev.sigev_notify_function = m_callback; > > … > > timer_create(CLOCK_MONOTONIC, &ev, &m_timer_t); > > > > This timer sometimes h

Timer delays in VM

2022-02-27 Thread Eugene Huang
Hi, I am running qemu on an arm64 CentOS host. Inside a ubuntu VM, a process runs a timer created using timer_t: ev.sigev_notify_function = m_callback; ... timer_create(CLOCK_MONOTONIC, &ev, &m_timer_t); This timer sometimes has significant delays. For example, the 50 ms timer can have a callba