Re: [XEN PATCH 9/9] x86/smp: start APs in parallel during boot

2024-03-13 Thread Jan Beulich
On 12.03.2024 18:13, Krystian Hebel wrote: > > On 8.02.2024 13:37, Jan Beulich wrote: >> On 14.11.2023 18:50, Krystian Hebel wrote: >>> Multiple delays are required when sending IPIs and waiting for >>> responses. During boot, 4 such IPIs were sent per each AP. With this >>> change, only one set o

Re: [XEN PATCH 9/9] x86/smp: start APs in parallel during boot

2024-03-12 Thread Krystian Hebel
On 8.02.2024 13:37, Jan Beulich wrote: On 14.11.2023 18:50, Krystian Hebel wrote: Multiple delays are required when sending IPIs and waiting for responses. During boot, 4 such IPIs were sent per each AP. With this change, only one set of broadcast IPIs is sent. This reduces boot time, especial

Re: [XEN PATCH 9/9] x86/smp: start APs in parallel during boot

2024-02-08 Thread Jan Beulich
On 14.11.2023 18:50, Krystian Hebel wrote: > Multiple delays are required when sending IPIs and waiting for > responses. During boot, 4 such IPIs were sent per each AP. With this > change, only one set of broadcast IPIs is sent. This reduces boot time, > especially for platforms with large number o

[XEN PATCH 9/9] x86/smp: start APs in parallel during boot

2023-11-14 Thread Krystian Hebel
Multiple delays are required when sending IPIs and waiting for responses. During boot, 4 such IPIs were sent per each AP. With this change, only one set of broadcast IPIs is sent. This reduces boot time, especially for platforms with large number of cores. Single CPU initialization is still possib