On Wed, Sep 12, 2018 at 2:04 AM Thomas Stüfe <thomas.stu...@gmail.com> wrote: > Hi David, > > On Tue, Sep 11, 2018 at 8:29 PM, David Lloyd <david.ll...@redhat.com> wrote: > > I think this is a cool idea. > > Thanks. I think I did not come up with it though, I think the > technique was known already. > > > Do you have any performance numbers? > > Sure: > > small program, just spawning off /bin/true a 1000 times, measured on > my t450s running Ubuntu 16.4: > > Number open files: <none> 1000 100000 > > openjdk8: 305ms 1.5s 115s > sapjvm8: 721ms 2.3s 142s > > factor 2.4 1.53 1.23
This doesn't seem too bad, even for a first implementation. I wonder if it could be improved further using e.g. shared memory to reduce syscalls? -- - DML
