Re: ZFS and NVMe, trim caused stalling

2016-05-17 Thread Borja Marcos
> On 17 May 2016, at 11:09, Steven Hartland wrote: > >> I understand that, but I don’t think it’s a good that ZFS depends blindly on >> a driver feature such >> as that. Of course, it’s great to exploit it. >> >> I have also noticed that ZFS has a good throttling mechanism for write >> operat

Re: ZFS and NVMe, trim caused stalling

2016-05-17 Thread Steven Hartland
On 17/05/2016 08:49, Borja Marcos wrote: On 05 May 2016, at 16:39, Warner Losh wrote: What do you think? In some cases it’s clear that TRIM can do more harm than good. I think it’s best we not overreact. I agree. But with this issue the system is almost unusable for now. This particular c

Re: ZFS and NVMe, trim caused stalling

2016-05-17 Thread Borja Marcos
> On 05 May 2016, at 16:39, Warner Losh wrote: > >> What do you think? In some cases it’s clear that TRIM can do more harm than >> good. > > I think it’s best we not overreact. I agree. But with this issue the system is almost unusable for now. > This particular case is cause by the nvd driv