Hello. Thanks all for sharing ideas and more details (in time-previous messages). On Sat, Jan 07, 2023 at 02:07:38AM +0800, hanjinke <hanjinke.666@xxxxxxxxxxxxx> wrote: > But for some specific scenarios with old kernel versions, blk-throtl > is alose needed. The scenario described in my email is in the early stage of > research and extensive testing for it. During this period，some priority > inversion issues amoug cgroups or within one cgroup have been observed. So I > send this patch to try to fix or mitigate some of these issues. Jinke, do you combine blk-throtl with memory limits? (As that could in theory indirectly reduce async requests as dirtier would be slowed down.) Thanks, Michal
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