Hi Luca, > > > > I think it probably makes sense to get the fix for the equation to go > > in as a first step and then we can investigate more about the second > > issue (less reclaiming with less load and different bandwidth) and > > fix it separately. What do you think? > > I fully agree. If you split this change in a first patch, IMHO it > can be applied. > Thanks, I shall have it as the first patch in the next iteration. > BTW, I tried changing the equation without introducing div64, and it > seems to me that it works well... So, if removing the bw_ratio > approximation is needed, I think you can do it in a second patch (so, > the first patch changes the reclaiming equation, and the second one > introduces div64) > There was one more reason for removing the bw_ratio. The second patch fixing the issue with mix of normal and SCHED_FLAG_RECLAIM tasks, do not have a constant Umax, so we cannot calculate the bw_ratio in advance and has to be calculated in grub_reclaim(). As you suggested, I shall remove the bw_ratio as the second patch and then have the third patch to fix the case of SCHED_FLAG_RECLAIM and normal deadline tasks. For the rest of the issues, I shall work on it as a separate patch series once this goes in. Will send it out tomorrow after a bit more testing. Thanks again, Vineeth
