On Tuesday, 28 February 2017 18:55:36 UTC+2, J. Kiszka wrote: > On 2017-02-28 17:49, Dan Zach wrote: > > Jan, > > Running gic-demo at 1KHz on an inmate - the jitter is still gives 200 us > > - worse case. > > > > > > I wonder why in this bare-metal case, the stats show no CP15 exits as well: > > > > vmexits_total 144686 987 > > vmexits_virt_irq 144683 987 > > vmexits_management 2 0 > > vmexits_mmio 1 0 > > vmexits_cp15 0 0 > > vmexits_hypercall 0 0 > > vmexits_maintenance 0 0 > > vmexits_psci 0 0 > > vmexits_virt_sgi 0 0 > > > > How do /proc/timer_list look like, for both cells in comparison? Please > post here as well. > > Jan > > -- > Siemens AG, Corporate Technology, CT RDA ITP SES-DE > Corporate Competence Center Embedded Linux
Jan, Pleae see at the attached file: timers_list: 1. Root cell (very good jitter ~3us average) 2. Non-root cell (terrible jitter ~40us average) For the bare metal gic-demo , modified to 1KHz, the jitter is somewhere in between. Thank you! Dan -- You received this message because you are subscribed to the Google Groups "Jailhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
timer_list
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