On 2020/4/9 10:20, Jaegeuk Kim wrote: > On 04/07, Chao Yu wrote: >> On 2020/4/7 10:59, Jaegeuk Kim wrote: >>> On 04/07, Chao Yu wrote: >>>> On 2020/4/4 0:12, Jaegeuk Kim wrote: >>>>> This patch introduces a way to attach REQ_META/FUA explicitly >>>>> to all the data writes given temperature. >>>>> >>>>> -> attach REQ_FUA to Hot Data writes >>>>> >>>>> -> attach REQ_FUA to Hot|Warm Data writes >>>>> >>>>> -> attach REQ_FUA to Hot|Warm|Cold Data writes >>>>> >>>>> -> attach REQ_FUA to Hot|Warm|Cold Data writes as well as >>>>> REQ_META to Hot Data writes >>>> >>>> Out of curiosity, what scenario it is used for? >>> >>> It's testing purpose to compare the bandwidths per different IO flags. >> >> Thanks for the hint. :) >> >> As nobarrier was set in Android, so REQ_PREFLUSH will not be considered in >> this sysfs interface? > > I don't see any diff on performance, so not interesting. :)
I doubt it may has diff on non-ufs/emmc device? just guess. Thanks, > >> >> Thanks, >> >>> >>>> >>>> Thanks, >>> . >>> > . > _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
