On Mon, 10 Jun 2024 at 12:54, Rainer Orth <r...@cebitec.uni-bielefeld.de> wrote: > > 30_threads/future/members/poll.cc consistently FAILs on Solaris/x86 > (both 32 and 64-bit): > > FAIL: 30_threads/future/members/poll.cc -std=gnu++17 execution test
I see this one failing under x86_64-linux under high load. So I think we might simply want a better test. > > /vol/gcc/src/hg/master/local/libstdc++-v3/testsuite/30_threads/future/members/poll.cc:95: > int main(): Assertion 'wait_until_sys_min < (ready * 100)' failed. > wait_for(0s): 11892ns for 200 calls, avg 59.46ns per call > wait_until(system_clock minimum): 1304458ns for 200 calls, avg 6522.29ns per > call > wait_until(steady_clock minimum): 1403221ns for 200 calls, avg 7016.1ns per > call > wait_until(system_clock epoch): 3343806ns for 200 calls, avg 16719ns per call > wait_until(steady_clock epoch: 2959581ns for 200 calls, avg 14797.9ns per call > wait_for when ready: 10969ns for 200 calls, avg 54.845ns per call > > As reported in the PR, across a considerable range of CPUs the test > doesn't complete in the expected time. Therefore, this patch introduces > a Solaris/x86 specific scale factor to allow for that. > > There's no such issue on Solaris/SPARC, though. > > Tested on i386-pc-solaris2.11 and sparc-sun-solaris2.11. > > Ok for trunk? > > Rainer > > -- > ----------------------------------------------------------------------------- > Rainer Orth, Center for Biotechnology, Bielefeld University > > > 2024-06-04 Rainer Orth <r...@cebitec.uni-bielefeld.de> > > libstdc++-v3: > PR libstdc++/98678 > * testsuite/30_threads/future/members/poll.cc (main): Introduce > scale factor. >
