On Tue, Sep 04, 2018 at 05:28:13PM -0400, Daniel Jordan wrote: > Pavel Tatashin, Ying Huang, and I are excited to be organizing a performance > and scalability microconference this year at Plumbers[*], which is happening > in Vancouver this year. The microconference is scheduled for the morning of > the second day (Wed, Nov 14). > > We have a preliminary agenda and a list of confirmed and interested attendees > (cc'ed), and are seeking more of both! > > Some of the items on the agenda as it stands now are: > > - Promoting huge page usage: With memory sizes becoming ever larger, huge > pages are becoming more and more important to reduce TLB misses and the > overhead of memory management itself--that is, to make the system scalable > with the memory size. But there are still some remaining gaps that prevent > huge pages from being deployed in some situations, such as huge page > allocation latency and memory fragmentation. > > - Reducing the number of users of mmap_sem: This semaphore is frequently > used throughout the kernel. In order to facilitate scaling this longstanding > bottleneck, these uses should be documented and unnecessary users should be > fixed. > > - Parallelizing cpu-intensive kernel work: Resolve problems of past > approaches including extra threads interfering with other processes, playing > well with power management, and proper cgroup accounting for the extra > threads. Bonus topic: proper accounting of workqueue threads running on > behalf of cgroups. > > - Preserving userland during kexec with a hibernation-like mechanism.
Just some crazy idea: have you considered using checkpoint-restore as a replacement or an addition to hibernation? > These center around our interests, but having lots of topics to choose from > ensures we cover what's most important to the community, so we would like to > hear about additional topics and extensions to those listed here. This > includes, but is certainly not limited to, work in progress that would > benefit from in-person discussion, real-world performance problems, and > experimental and academic work. > > If you haven't already done so, please let us know if you are interested in > attending, or have suggestions for other attendees. > > Thanks, > Daniel > > [*] https://blog.linuxplumbersconf.org/2018/performance-mc/ > -- Sincerely yours, Mike.
