Hi Jens, Thanks. I will try to do some test later this week. Cw On Tue, May 17, 2016 at 9:20 AM, Jens Axboe <axboe@xxxxxxxxx> wrote: > On 05/16/2016 12:11 PM, Jens Axboe wrote: >> >> On 05/16/2016 10:57 AM, Jens Axboe wrote: >>>> >>>> I would like to confirm those points is because i intend to run >>>> workload test that simulate hot file access. At any one time, the >>>> files open will be less than the total files in the system and there >>>> will be files that are hot and get access multiple times. Can i do it >>>> using fio? Thanks. >>> >>> >>> That's a good question. Currently fio doesn't, but there's no reason why >>> it could not use the same distribution methods for choosing what files >>> to service. That would indeed allow you to mimic some files being hotter >>> than others, just like we do for offsets in that file. >> >> >> Something like the below patch would allow you to do that. Basically the >> options and values are idential to random_distribution, this one is just >> for selecting what file to service. Just like with random_distribution, >> you could use fio-genzipf to give you a good idea of what the >> distribution of file uses would be. >> >> Let me know how it works for you. > > > Committed with some fixes, so you can just use the git version. > > -- > Jens Axboe > -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
