On Tue, 5 Mar 2019 17:42:12 +0100 Paolo Valente <paolo.valente@xxxxxxxxxx> wrote: > At any rate, let me take this opportunity for updating you guys on > what happened in the last months. > > First, server-side, I discovered that the techniques used to guarantee > I/O bandwidth to clients, containers and virtual machines easily > result in throughput losses of up to 90%! So I improved BFQ so as to > make it an alternative solution that brings this loss down to just > 10%. Full details in this very recent (today :) ) short article: > http://ow.ly/vsrW50mBAGl > > Second, PC-side, I've pushed new commits for the dev version of BFQ > (I'll submit these commits for the production version, probably > tomorrow; so they'll probably be all available from 5.2). These > commits provide the following, measurable performance boost: > - up to ~80% faster application start-up times in the presence of > background workloads > - ~150% throughput boost in one of the nastiest workloads for BFQ the > one generated by dbench. The throughput is finally on pr with any > other I/O scheduler, and most likely equal to the maximum possible > throughput reachable with this test > - elimination of the 18% loss of throughput occurring with only > random reads, w.r.t. to none as I/O scheduler; there is no loss any > more; This sounds great! Thanks for the update. Looking forward to 5.2. _______________________________________________ kernel mailing list -- kernel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to kernel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/kernel@xxxxxxxxxxxxxxxxxxxxxxx
