Re: [PATCH 1/2] pseries/smp: export the smt level in the SYS FS.

2023-04-18 Thread Srikar Dronamraju
* Laurent Dufour [2023-04-13 17:38:51]: > On 13/04/2023 15:37:59, Michael Ellerman wrote: > > Hi Laurent, > > > > Laurent Dufour writes: > >> There is no SMT level recorded in the kernel neither in user space. > >> Indeed there is no real constraint about that and mixed SMT levels are > >> allo

Re: [PATCH 1/2] pseries/smp: export the smt level in the SYS FS.

2023-04-14 Thread Michal Suchánek
Hello, On Fri, Apr 14, 2023 at 10:11:24PM +1000, Michael Ellerman wrote: > Laurent Dufour writes: > > On 13/04/2023 15:37:59, Michael Ellerman wrote: > >> Laurent Dufour writes: > >>> There is no SMT level recorded in the kernel neither in user space. > >>> Indeed there is no real constraint abo

Re: [PATCH 1/2] pseries/smp: export the smt level in the SYS FS.

2023-04-14 Thread Michael Ellerman
Laurent Dufour writes: > On 13/04/2023 15:37:59, Michael Ellerman wrote: >> Laurent Dufour writes: >>> There is no SMT level recorded in the kernel neither in user space. >>> Indeed there is no real constraint about that and mixed SMT levels are >>> allowed and system is working fine this way. >>

Re: [PATCH 1/2] pseries/smp: export the smt level in the SYS FS.

2023-04-13 Thread Laurent Dufour
On 13/04/2023 15:37:59, Michael Ellerman wrote: > Hi Laurent, > > Laurent Dufour writes: >> There is no SMT level recorded in the kernel neither in user space. >> Indeed there is no real constraint about that and mixed SMT levels are >> allowed and system is working fine this way. >> >> However w

Re: [PATCH 1/2] pseries/smp: export the smt level in the SYS FS.

2023-04-13 Thread Michael Ellerman
Hi Laurent, Laurent Dufour writes: > There is no SMT level recorded in the kernel neither in user space. > Indeed there is no real constraint about that and mixed SMT levels are > allowed and system is working fine this way. > > However when new CPU are added, the kernel is onlining all the threa

Re: [PATCH 1/2] pseries/smp: export the smt level in the SYS FS.

2023-04-03 Thread Laurent Dufour
On 31/03/2023 18:05:27, Michal Suchánek wrote: > Hello, > > On Fri, Mar 31, 2023 at 05:39:04PM +0200, Laurent Dufour wrote: >> There is no SMT level recorded in the kernel neither in user space. >> Indeed there is no real constraint about that and mixed SMT levels are >> allowed and system is work

Re: [PATCH 1/2] pseries/smp: export the smt level in the SYS FS.

2023-03-31 Thread Michal Suchánek
Hello, On Fri, Mar 31, 2023 at 05:39:04PM +0200, Laurent Dufour wrote: > There is no SMT level recorded in the kernel neither in user space. > Indeed there is no real constraint about that and mixed SMT levels are > allowed and system is working fine this way. > > However when new CPU are added,

[PATCH 1/2] pseries/smp: export the smt level in the SYS FS.

2023-03-31 Thread Laurent Dufour
There is no SMT level recorded in the kernel neither in user space. Indeed there is no real constraint about that and mixed SMT levels are allowed and system is working fine this way. However when new CPU are added, the kernel is onlining all the threads which is leading to mixed SMT levels and co