Re: periodic trim for ufs2 ssds

Van: Ronald Klop <ronald-lists@klop.ws>
Datum: donderdag, 7 december 2023 16:21
Aan: void <void@f-m.fm>
CC: freebsd-fs@freebsd.org
Onderwerp: Re: periodic trim for ufs2 ssds
> 
>  
> Van: void <void@f-m.fm>
> Datum: donderdag, 7 december 2023 15:40
> Aan: freebsd-fs@freebsd.org
> Onderwerp: Re: periodic trim for ufs2 ssds
>> 
>> On Thu, Dec 07, 2023 at 07:20:10AM -0700, Warner Losh wrote:
>> 
>> >You need to tunefs that on and it will happen as you go. There is no way to
>> >batch this up to do it in the background. But there's no advantage to
>> >trimming a block multiple times... :).
>> 
>> ok, thanks.
>> 
>> (I should have mentioned 14-stable amd64 context)
>> 
>> I booted single-user then ran: fsck -y /dev/ada0s1a
>> fsck_ffs -E /dev/ada0s1a
>> tunefs -t /dev/ada0s1a
>> fsck_ffs -E /dev/ada0s1a
>> 
>> then booted multiuser
>> 
>> will console/messages or some other log show when it runs?
>> smartctl(8) makes no mention of trim.
>> -- 
>>  
>> 
>> 
>> 
> 
> 
> A tool like "gstat -d" will show columns for deletion which means trim.
> 
> Regards,
> Ronald.
>  
This can give you some info too.

$ sysctl -a | grep trim
<118>Creating and/or trimming log files.
kern.cam.da.1.trim_ticks: 0
kern.cam.da.1.trim_goal: 0
kern.cam.da.1.trim_lbas: 0
kern.cam.da.1.trim_ranges: 0
kern.cam.da.1.trim_count: 0
kern.cam.da.0.trim_ticks: 0
kern.cam.da.0.trim_goal: 0
kern.cam.da.0.trim_lbas: 75835864
kern.cam.da.0.trim_ranges: 62293
kern.cam.da.0.trim_count: 57020
...

Regards,
Ronald.