On 2020/1/24 2:31 上午, Jens Axboe wrote: > On 1/23/20 10:27 AM, Coly Li wrote: >> On 2020/1/24 1:19 上午, Michael Lyle wrote: >>> Hi Coly and Jens-- >>> >>> One concern I have with this is that it's going to wear out >>> limited-lifetime SSDs a -lot- faster. Was any thought given to making >>> this a tunable instead of just changing the behavior? Even if we have >>> an anecdote or two that it seems to have increased performance for >>> some workloads, I don't expect it will have increased performance in >>> general and it may even be costly for some workloads (it all comes >>> down to what is more useful in the cache-- somewhat-recently readahead >>> data, or the data that it is displacing). >> >> Hi Mike, >> >> Copied. This is good suggestion, I will do it after I back from Lunar >> New Year vacation, and submit it with other tested patches in following >> v5.6-rc versions. > > Do you want me to just drop this patch for now from the series? > Hi Jens, OK, please drop this patch from this series. I will re-submit the patch with sysfs interface later with other patches. Thanks. -- Coly Li
