On 2019/8/27 下午4:35, swami@xxxxxxxxxxxxxx wrote: > Hi Qu, > > Sorry for top-posting (my phone, uh...) > > I meant that I had understood that the V2 space cache was preferable to > V1 only for multi-TB filesystems. > > So would you advise to use V2 space cache also for filesystems < 1 TB ? Sorry, I'm not that familiar with space cache/tree code to do any recommendation based on code. My recommendation is, disable space cache if in doubt. Simple and straightforward. Thanks, Qu > > TIA. > > Kind regards. > > > > -------- Message original -------- > Objet : Re: Massive filesystem corruption since kernel 5.2 (ARCH) > De : Qu Wenruo > À : Swâmi Petaramesh ,linux-btrfs@xxxxxxxxxxxxxxx > Cc : Christoph Anton Mitterer > > > > or to use the V2 space > > cache generally speaking, on any machine that I use (I had > understood it > > was useful only on multi-TB filesystems...) > > 10GiB is enough to create large enough block groups to utilize free > space cache. > So you can't really escape from free space cache. >
