Messages in this thread | | | Date | Thu, 12 Sep 2013 22:46:47 +0200 | From | Jan Kara <> | Subject | Re: Debugging system freezes on filesystem writes |
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On Thu 12-09-13 20:59:07, Marcus Sundman wrote: > On 12.09.2013 19:35, Jan Kara wrote: > >On Thu 12-09-13 18:08:13, Marcus Sundman wrote: > >>And can I somehow "reset" whatever it is that is making it worse so > >>that it becomes good again? That way I could spend maybe 1 hour once > >>every few months to get it back to top speed. > >>Any other ideas how I could make this (very expensive and fairly new > >>ZenBook) laptop usable? > > Well, I believe if you used like 70% or less of the disk and regularly > >(like once in a few days) run fstrim command, I belive the disk performance > >should stay at a usable level. > > At 128 GB it is extremely small as it is, and I'm really struggling > to fit all on it. Most of my stuff is on my NAS (which has almost 10 > TB space), but still I need several code repositories and the > development environment and a virtual machine etc on this tiny 128 > GB thing. I see. I have like 70 GB disk and 50% of it are free :) But I have test machines with much larger drives where I have VMs etc. This one is just for email and coding.
> So, if I used some other filesystem, might that allow me to use a > larger portion of the SSD without this degradation? Or with a much > slower rate of degradation? You might try f2fs. That is designed for low end flash storage so it might work better than ext4. But it is a new filesystem so backup often.
> And at some point it will become unusable again, so what can I do > then? If I move everything to my NAS (and maybe even re-create the > filesystem?) and move everything back, might that get rid of the FTL > fragmentation? Yes, that should get rid of it. But since you have only a few GB free, I'm afraid the fragmentation will reappear pretty quickly. But I guess it's worth a try.
> Or could I somehow defragment the FTL without moving away everything? I don't know about such way.
Honza -- Jan Kara <jack@suse.cz> SUSE Labs, CR
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