On Thu, Jul 25, 2024 at 08:23:21AM -0700, Nuno Das Neves wrote: > On 7/24/2024 10:26 PM, Saurabh Sengar wrote: > > Currently on a very large system with 1780 CPUs, hv_acpi_init takes > > around 3 seconds to complete for all the CPUs. This is because of > > sequential synic initialization for each CPU. > > > > Defer these tasks so that each CPU executes hv_acpi_init in parallel > > to take full advantage of multiple CPUs. > > I think you mean hv_synic_init() here, not hv_acpi_init()? Thanks, will send v2 correcting this. - Saurabh > > > > > This solution saves around 2 seconds of boot time on a 1780 CPU system, > > that around 66% improvement in the existing logic. > > > > Signed-off-by: Saurabh Sengar <ssengar@xxxxxxxxxxxxxxxxxxx> > > --- > > drivers/hv/vmbus_drv.c | 33 ++++++++++++++++++++++++++++++--- > > 1 file changed, 30 insertions(+), 3 deletions(-) > > > > LGTM otherwise. > > Reviewed-by: Nuno Das Neves <nunodasneves@xxxxxxxxxxxxxxxxxxx>
