Re: netbsd-6 slow after resume from S3 sleep

[Masanobu SAITOH <msaitoh%execsw.org@localhost>]

 replying to old mail :-|

On 2014/09/14 2:38, Christoph Badura wrote:
> I'm trying to figure out why after resuming from S3 sleep my T500/W500
> thinkpads are extremely sluggish when running 6.x.
>
> E.g.:
>
> Script started on Sat Sep 13 18:45:28 2014
> size-isnt-everything# cat ./timeit
> time sh -c 'seq 1 1000 | while read s; do ( true ); done'
> size-isnt-everything# ./timeit
>          0.20 real         0.08 user         0.11 sys
> size-isnt-everything# sysctl -w machdep.sleep_state=3
> machdep.sleep_state: 0 -> 3
> size-isnt-everything# ./timeit
>         16.22 real         1.98 user        14.22 sys
> size-isnt-everything# startx
> size-isnt-everything# ./timeit
>          0.20 real         0.07 user         0.12 sys
> size-isnt-everything# exit
>
> Script done on Sat Sep 13 18:46:36 2014
>
> This happens only for amd64. It does not happen when running i386.
>
> Starting X makes the system normally fast again.  Suspending while running
> X makes the system slow again.  Exiting from X then makes the system
> normally fast again.
>
> A -current kernel does not have this problem.
>
> Has anyone else seen this problem? Perhaps on a different system?
> Does anyone remember when it went away?
>
> NB that the acpi vbios reset sysctl has to be set to either 0 or 2 for the
> T500/W500 to restore video after resume.  Neither value makes a difference
> with regard to the slowness.

Could you show me the full dmesg and the output of "cpuctl identify 0"

 Regards.

--
-----------------------------------------------
                SAITOH Masanobu (msaitoh%execsw.org@localhost
                                 msaitoh%netbsd.org@localhost)