Messages in this thread |  | | Date | Mon, 6 Apr 2020 19:59:13 -0700 | From | Jaegeuk Kim <> | Subject | Re: [f2fs-dev] [PATCH] f2fs: introduce sysfs/data_io_flag to attach REQ_META/FUA |
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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,
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