On 1/23/20 5:49 PM, Coly Li wrote:
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.
Sounds good, I queued up the rest for 5.6.